Doc AWS SDK Examples GitHub リポジトリには、他にも SDK の例があります。 [AWS](https://github.com/awsdocs/aws-doc-sdk-examples) 翻訳は機械翻訳により提供されています。提供された翻訳内容と英語版の間で齟齬、不一致または矛盾がある場合、英語版が優先します。 # AWS SDKsコード例次のコード例は、 AWS Software Development Kit (SDK) で Amazon Aurora を使用する方法を示しています。 *基本* は、重要なオペレーションをサービス内で実行する方法を示すコード例です。 *アクション*はより大きなプログラムからのコードの抜粋であり、コンテキスト内で実行する必要があります。アクションは個々のサービス機能を呼び出す方法を示していますが、コンテキスト内のアクションは、関連するシナリオで確認できます。 *シナリオ*は、1 つのサービス内から、または他の AWS のサービスと組み合わせて複数の関数を呼び出し、特定のタスクを実行する方法を示すコード例です。 **その他のリソース** + **[Aurora ユーザーガイド](https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/CHAP_AuroraOverview.html)** — Aurora に関する詳細情報 + **[Aurora API リファレンス](https://docs.aws.amazon.com/AmazonRDS/latest/APIReference/Welcome.html)** — 使用可能なすべての Aurora アクションに関する詳細。 + **[AWS デベロッパーセンター](https://aws.amazon.com/developer/code-examples/?awsf.sdk-code-examples-product=product%23aurora)** – カテゴリまたは全文検索でフィルタリングできるコード例。 + **[AWS SDK の例](https://github.com/awsdocs/aws-doc-sdk-examples)** – 完全なコードを優先言語で含む GitHub リポジトリ。コードの設定と実行に関する説明が記載されています。 **Contents** + [基本](aurora_code_examples_basics.md) + [Hello Aurora](aurora_example_aurora_Hello_section.md) + [基本を学ぶ](aurora_example_aurora_Scenario_GetStartedClusters_section.md) + [アクション](aurora_code_examples_actions.md) + [`CreateDBCluster`](aurora_example_aurora_CreateDBCluster_section.md) + [`CreateDBClusterParameterGroup`](aurora_example_aurora_CreateDBClusterParameterGroup_section.md) + [`CreateDBClusterSnapshot`](aurora_example_aurora_CreateDBClusterSnapshot_section.md) + [`CreateDBInstance`](aurora_example_aurora_CreateDBInstance_section.md) + [`DeleteDBCluster`](aurora_example_aurora_DeleteDBCluster_section.md) + [`DeleteDBClusterParameterGroup`](aurora_example_aurora_DeleteDBClusterParameterGroup_section.md) + [`DeleteDBInstance`](aurora_example_aurora_DeleteDBInstance_section.md) + [`DescribeDBClusterParameterGroups`](aurora_example_aurora_DescribeDBClusterParameterGroups_section.md) + [`DescribeDBClusterParameters`](aurora_example_aurora_DescribeDBClusterParameters_section.md) + [`DescribeDBClusterSnapshots`](aurora_example_aurora_DescribeDBClusterSnapshots_section.md) + [`DescribeDBClusters`](aurora_example_aurora_DescribeDBClusters_section.md) + [`DescribeDBEngineVersions`](aurora_example_aurora_DescribeDBEngineVersions_section.md) + [`DescribeDBInstances`](aurora_example_aurora_DescribeDBInstances_section.md) + [`DescribeOrderableDBInstanceOptions`](aurora_example_aurora_DescribeOrderableDBInstanceOptions_section.md) + [`ModifyDBClusterParameterGroup`](aurora_example_aurora_ModifyDBClusterParameterGroup_section.md) + [シナリオ](aurora_code_examples_scenarios.md) + [貸出ライブラリ REST API を作成する](aurora_example_cross_AuroraRestLendingLibrary_section.md) + [Aurora Serverless 作業項目トラッカーの作成](aurora_example_cross_RDSDataTracker_section.md) # AWS SDKs を使用した Aurora の基本的な例次のコード例は、 AWS SDK を使用した Amazon Aurora の基本的な使用方法を説明しています。 **Contents** + [Hello Aurora](aurora_example_aurora_Hello_section.md) + [基本を学ぶ](aurora_example_aurora_Scenario_GetStartedClusters_section.md) + [アクション](aurora_code_examples_actions.md) + [`CreateDBCluster`](aurora_example_aurora_CreateDBCluster_section.md) + [`CreateDBClusterParameterGroup`](aurora_example_aurora_CreateDBClusterParameterGroup_section.md) + [`CreateDBClusterSnapshot`](aurora_example_aurora_CreateDBClusterSnapshot_section.md) + [`CreateDBInstance`](aurora_example_aurora_CreateDBInstance_section.md) + [`DeleteDBCluster`](aurora_example_aurora_DeleteDBCluster_section.md) + [`DeleteDBClusterParameterGroup`](aurora_example_aurora_DeleteDBClusterParameterGroup_section.md) + [`DeleteDBInstance`](aurora_example_aurora_DeleteDBInstance_section.md) + [`DescribeDBClusterParameterGroups`](aurora_example_aurora_DescribeDBClusterParameterGroups_section.md) + [`DescribeDBClusterParameters`](aurora_example_aurora_DescribeDBClusterParameters_section.md) + [`DescribeDBClusterSnapshots`](aurora_example_aurora_DescribeDBClusterSnapshots_section.md) + [`DescribeDBClusters`](aurora_example_aurora_DescribeDBClusters_section.md) + [`DescribeDBEngineVersions`](aurora_example_aurora_DescribeDBEngineVersions_section.md) + [`DescribeDBInstances`](aurora_example_aurora_DescribeDBInstances_section.md) + [`DescribeOrderableDBInstanceOptions`](aurora_example_aurora_DescribeOrderableDBInstanceOptions_section.md) + [`ModifyDBClusterParameterGroup`](aurora_example_aurora_ModifyDBClusterParameterGroup_section.md) # Hello Aurora 次のコード例は、Aurora の使用を開始する方法を示しています。 ------ #### [ .NET ] **SDK for .NET (v4)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/Aurora#code-examples)での設定と実行の方法を確認してください。 ``` using Amazon.RDS; using Amazon.RDS.Model; using Microsoft.Extensions.DependencyInjection; using Microsoft.Extensions.Hosting; namespace AuroraActions; public static class HelloAurora { static async Task Main(string[] args) { // Use the AWS .NET Core Setup package to set up dependency injection for the // Amazon Relational Database Service (Amazon RDS). // Use your AWS profile name, or leave it blank to use the default profile. using var host = Host.CreateDefaultBuilder(args) .ConfigureServices((_, services) => services.AddAWSService() ).Build(); // Now the client is available for injection. Fetching it directly here for example purposes only. var rdsClient = host.Services.GetRequiredService(); // You can use await and any of the async methods to get a response. var response = await rdsClient.DescribeDBClustersAsync(new DescribeDBClustersRequest { IncludeShared = true }); Console.WriteLine($"Hello Amazon RDS Aurora! Let's list some clusters in this account:"); if (response.DBClusters == null) { Console.WriteLine($"\tNo clusters found."); } else { foreach (var cluster in response.DBClusters) { Console.WriteLine( $"\tCluster: database: {cluster.DatabaseName} identifier: {cluster.DBClusterIdentifier}."); } } } } ``` + API の詳細については、*AWS SDK for .NET API リファレンス*の「[DescribeDBClusters](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/DescribeDBClusters)」を参照してください。 ------ #### [ C\$1\$1 ] **SDK for C\$1\$1** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/aurora/hello_aurora#code-examples)での設定と実行の方法を確認してください。 CMakeLists.txt CMake ファイルのコード。 ``` # Set the minimum required version of CMake for this project. cmake_minimum_required(VERSION 3.13) # Set the AWS service components used by this project. set(SERVICE_COMPONENTS rds) # Set this project's name. project("hello_aurora") # Set the C++ standard to use to build this target. # At least C++ 11 is required for the AWS SDK for C++. set(CMAKE_CXX_STANDARD 11) # Use the MSVC variable to determine if this is a Windows build. set(WINDOWS_BUILD ${MSVC}) if (WINDOWS_BUILD) # Set the location where CMake can find the installed libraries for the AWS SDK. string(REPLACE ";" "/aws-cpp-sdk-all;" SYSTEM_MODULE_PATH "${CMAKE_SYSTEM_PREFIX_PATH}/aws-cpp-sdk-all") list(APPEND CMAKE_PREFIX_PATH ${SYSTEM_MODULE_PATH}) endif () # Find the AWS SDK for C++ package. find_package(AWSSDK REQUIRED COMPONENTS ${SERVICE_COMPONENTS}) if (WINDOWS_BUILD AND AWSSDK_INSTALL_AS_SHARED_LIBS) # Copy relevant AWS SDK for C++ libraries into the current binary directory for running and debugging. # set(BIN_SUB_DIR "/Debug") # If you are building from the command line, you may need to uncomment this # and set the proper subdirectory to the executables' location. AWSSDK_CPY_DYN_LIBS(SERVICE_COMPONENTS "" ${CMAKE_CURRENT_BINARY_DIR}${BIN_SUB_DIR}) endif () add_executable(${PROJECT_NAME} hello_aurora.cpp) target_link_libraries(${PROJECT_NAME} ${AWSSDK_LINK_LIBRARIES}) ``` hello\$1aurora.cpp ソースファイルのコード。 ``` #include #include #include #include /* * A "Hello Aurora" starter application which initializes an Amazon Relational Database Service (Amazon RDS) client * and describes the Amazon Aurora (Aurora) clusters. * * main function * * Usage: 'hello_aurora' * */ int main(int argc, char **argv) { Aws::SDKOptions options; // Optionally change the log level for debugging. // options.loggingOptions.logLevel = Utils::Logging::LogLevel::Debug; Aws::InitAPI(options); // Should only be called once. int result = 0; { Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region (overrides config file). // clientConfig.region = "us-east-1"; Aws::RDS::RDSClient rdsClient(clientConfig); Aws::String marker; // Used for pagination. std::vector clusterIds; do { Aws::RDS::Model::DescribeDBClustersRequest request; Aws::RDS::Model::DescribeDBClustersOutcome outcome = rdsClient.DescribeDBClusters(request); if (outcome.IsSuccess()) { for (auto &cluster: outcome.GetResult().GetDBClusters()) { clusterIds.push_back(cluster.GetDBClusterIdentifier()); } marker = outcome.GetResult().GetMarker(); } else { result = 1; std::cerr << "Error with Aurora::GDescribeDBClusters. " << outcome.GetError().GetMessage() << std::endl; break; } } while (!marker.empty()); std::cout << clusterIds.size() << " Aurora clusters found." << std::endl; for (auto &clusterId: clusterIds) { std::cout << " clusterId " << clusterId << std::endl; } } Aws::ShutdownAPI(options); // Should only be called once. return 0; } ``` + API の詳細については、*AWS SDK for C\$1\$1 API リファレンス*の「[DescribeDBClusters](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/DescribeDBClusters)」を参照してください。 ------ #### [ Go ] **SDK for Go V2** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/gov2/aurora#code-examples)での設定と実行の方法を確認してください。 ``` package main import ( "context" "fmt" "github.com/aws/aws-sdk-go-v2/aws" "github.com/aws/aws-sdk-go-v2/config" "github.com/aws/aws-sdk-go-v2/service/rds" ) // main uses the AWS SDK for Go V2 to create an Amazon Aurora client and list up to 20 // DB clusters in your account. // This example uses the default settings specified in your shared credentials // and config files. func main() { ctx := context.Background() sdkConfig, err := config.LoadDefaultConfig(ctx) if err != nil { fmt.Println("Couldn't load default configuration. Have you set up your AWS account?") fmt.Println(err) return } auroraClient := rds.NewFromConfig(sdkConfig) const maxClusters = 20 fmt.Printf("Let's list up to %v DB clusters.\n", maxClusters) output, err := auroraClient.DescribeDBClusters( ctx, &rds.DescribeDBClustersInput{MaxRecords: aws.Int32(maxClusters)}) if err != nil { fmt.Printf("Couldn't list DB clusters: %v\n", err) return } if len(output.DBClusters) == 0 { fmt.Println("No DB clusters found.") } else { for _, cluster := range output.DBClusters { fmt.Printf("DB cluster %v has database %v.\n", *cluster.DBClusterIdentifier, *cluster.DatabaseName) } } } ``` + API の詳細については、*AWS SDK for Go API リファレンス*の「[DescribeDBClusters](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.DescribeDBClusters)」を参照してください。 ------ #### [ Java ] **SDK for Java 2.x** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/rds#code-examples)での設定と実行の方法を確認してください。 ``` import software.amazon.awssdk.regions.Region; import software.amazon.awssdk.services.rds.RdsClient; import software.amazon.awssdk.services.rds.paginators.DescribeDBClustersIterable; public class DescribeDbClusters { public static void main(String[] args) { Region region = Region.US_EAST_1; RdsClient rdsClient = RdsClient.builder() .region(region) .build(); describeClusters(rdsClient); rdsClient.close(); } public static void describeClusters(RdsClient rdsClient) { DescribeDBClustersIterable clustersIterable = rdsClient.describeDBClustersPaginator(); clustersIterable.stream() .flatMap(r -> r.dbClusters().stream()) .forEach(cluster -> System.out .println("Database name: " + cluster.databaseName() + " Arn = " + cluster.dbClusterArn())); } } ``` + API の詳細については、AWS SDK for Java 2.x API リファレンスの**「[DescribeDBClusters](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/DescribeDBClusters)」を参照してください。 ------ #### [ Python ] **SDK for Python (Boto3)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` import boto3 # Create an RDS client rds = boto3.client("rds") # Create a paginator for the describe_db_clusters operation paginator = rds.get_paginator("describe_db_clusters") # Use the paginator to get a list of DB clusters response_iterator = paginator.paginate( PaginationConfig={ "PageSize": 50, # Adjust PageSize as needed "StartingToken": None, } ) # Iterate through the pages of the response clusters_found = False for page in response_iterator: if "DBClusters" in page and page["DBClusters"]: clusters_found = True print("Here are your RDS Aurora clusters:") for cluster in page["DBClusters"]: print( f"Cluster ID: {cluster['DBClusterIdentifier']}, Engine: {cluster['Engine']}" ) if not clusters_found: print("No clusters found!") ``` + API の詳細については、*AWS SDK for Python (Boto3) API リファレンス*の「[DescribeDBClusters](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/DescribeDBClusters)」を参照してください。 ------ #### [ Ruby ] **SDK for Ruby** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` require 'aws-sdk-rds' # Creates an Amazon RDS client for the AWS Region rds = Aws::RDS::Client.new puts 'Listing clusters in this AWS account...' # Calls the describe_db_clusters method to get information about clusters resp = rds.describe_db_clusters(max_records: 20) # Checks if any clusters are found and prints the appropriate message if resp.db_clusters.empty? puts 'No clusters found!' else # Loops through the array of cluster objects and prints the cluster identifier resp.db_clusters.each do |cluster| puts "Cluster identifier: #{cluster.db_cluster_identifier}" end end ``` + API の詳細については、AWS SDK for Ruby API リファレンスの**「[DescribeDBClusters](https://docs.aws.amazon.com/goto/SdkForRubyV3/rds-2014-10-31/DescribeDBClusters)」を参照してください。 ------ #### [ Rust ] **SDK for Rust** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/rustv1/examples/aurora#code-examples)での設定と実行の方法を確認してください。 ``` use aws_sdk_rds::Client; #[derive(Debug)] struct Error(String); impl std::fmt::Display for Error { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { write!(f, "{}", self.0) } } impl std::error::Error for Error {} #[tokio::main] async fn main() -> Result<(), Error> { tracing_subscriber::fmt::init(); let sdk_config = aws_config::from_env().load().await; let client = Client::new(&sdk_config); let describe_db_clusters_output = client .describe_db_clusters() .send() .await .map_err(|e| Error(e.to_string()))?; println!( "Found {} clusters:", describe_db_clusters_output.db_clusters().len() ); for cluster in describe_db_clusters_output.db_clusters() { let name = cluster.database_name().unwrap_or("Unknown"); let engine = cluster.engine().unwrap_or("Unknown"); let id = cluster.db_cluster_identifier().unwrap_or("Unknown"); let class = cluster.db_cluster_instance_class().unwrap_or("Unknown"); println!("\tDatabase: {name}",); println!("\t Engine: {engine}",); println!("\t ID: {id}",); println!("\tInstance: {class}",); } Ok(()) } ``` + API の詳細については、「*AWS SDK for Rust API リファレンス*」の「[DescribeDBClusters](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.describe_db_clusters)」を参照してください。 ------ # AWS SDK を使用した Aurora の基本について説明します。次のコード例は、以下を実行する方法を示しています。 + カスタム Aurora DB クラスターパラメータグループを作成し、パラメータ値を設定します。 + パラメータグループを使用する DB クラスターを作成する + データベースを含む DB インスタンスを作成します。 + DB クラスターのスナップショットを作成して、リソースをクリーンアップします。 ------ #### [ .NET ] **SDK for .NET (v4)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/Aurora#code-examples)での設定と実行の方法を確認してください。コマンドプロンプトからインタラクティブなシナリオを実行します。 ``` using Amazon.RDS; using Amazon.RDS.Model; using AuroraActions; using Microsoft.Extensions.DependencyInjection; using Microsoft.Extensions.Hosting; using Microsoft.Extensions.Logging; using Microsoft.Extensions.Logging.Console; using Microsoft.Extensions.Logging.Debug; namespace AuroraScenario; ///

/// Scenario for Amazon Aurora examples. ///

public class AuroraScenario { /* Before running this .NET code example, set up your development environment, including your credentials. This .NET example performs the following tasks: 1. Return a list of the available DB engine families for Aurora MySql using the DescribeDBEngineVersionsAsync method. 2. Select an engine family and create a custom DB cluster parameter group using the CreateDBClusterParameterGroupAsync method. 3. Get the parameter group using the DescribeDBClusterParameterGroupsAsync method. 4. Get some parameters in the group using the DescribeDBClusterParametersAsync method. 5. Parse and display some parameters in the group. 6. Modify the auto_increment_offset and auto_increment_increment parameters using the ModifyDBClusterParameterGroupAsync method. 7. Get and display the updated parameters using the DescribeDBClusterParametersAsync method with a source of "user". 8. Get a list of allowed engine versions using the DescribeDBEngineVersionsAsync method. 9. Create an Aurora DB cluster that contains a MySql database and uses the parameter group. using the CreateDBClusterAsync method. 10. Wait for the DB cluster to be ready using the DescribeDBClustersAsync method. 11. Display and select from a list of instance classes available for the selected engine and version using the paginated DescribeOrderableDBInstanceOptions method. 12. Create a database instance in the cluster using the CreateDBInstanceAsync method. 13. Wait for the DB instance to be ready using the DescribeDBInstances method. 14. Display the connection endpoint string for the new DB cluster. 15. Create a snapshot of the DB cluster using the CreateDBClusterSnapshotAsync method. 16. Wait for DB snapshot to be ready using the DescribeDBClusterSnapshotsAsync method. 17. Delete the DB instance using the DeleteDBInstanceAsync method. 18. Delete the DB cluster using the DeleteDBClusterAsync method. 19. Wait for DB cluster to be deleted using the DescribeDBClustersAsync methods. 20. Delete the cluster parameter group using the DeleteDBClusterParameterGroupAsync. */ private static readonly string sepBar = new('-', 80); private static AuroraWrapper auroraWrapper = null!; private static ILogger logger = null!; private static readonly string engine = "aurora-mysql"; static async Task Main(string[] args) { // Set up dependency injection for the Amazon Relational Database Service (Amazon RDS). using var host = Host.CreateDefaultBuilder(args) .ConfigureLogging(logging => logging.AddFilter("System", LogLevel.Debug) .AddFilter("Microsoft", LogLevel.Information) .AddFilter("Microsoft", LogLevel.Trace)) .ConfigureServices((_, services) => services.AddAWSService() .AddTransient() ) .Build(); logger = LoggerFactory.Create(builder => { builder.AddConsole(); }).CreateLogger(); auroraWrapper = host.Services.GetRequiredService(); Console.WriteLine(sepBar); Console.WriteLine( "Welcome to the Amazon Aurora: get started with DB clusters example."); Console.WriteLine(sepBar); DBClusterParameterGroup parameterGroup = null!; DBCluster? newCluster = null; DBInstance? newInstance = null; try { var parameterGroupFamily = await ChooseParameterGroupFamilyAsync(); parameterGroup = await CreateDBParameterGroupAsync(parameterGroupFamily); var parameters = await DescribeParametersInGroupAsync(parameterGroup.DBClusterParameterGroupName, new List { "auto_increment_offset", "auto_increment_increment" }); await ModifyParametersAsync(parameterGroup.DBClusterParameterGroupName, parameters); await DescribeUserSourceParameters(parameterGroup.DBClusterParameterGroupName); var engineVersionChoice = await ChooseDBEngineVersionAsync(parameterGroupFamily); var newClusterIdentifier = "Example-Cluster-" + DateTime.Now.Ticks; newCluster = await CreateNewCluster ( parameterGroup, engine, engineVersionChoice.EngineVersion, newClusterIdentifier ); var instanceClassChoice = await ChooseDBInstanceClass(engine, engineVersionChoice.EngineVersion); var newInstanceIdentifier = "Example-Instance-" + DateTime.Now.Ticks; newInstance = await CreateNewInstance( newClusterIdentifier, engine, engineVersionChoice.EngineVersion, instanceClassChoice.DBInstanceClass, newInstanceIdentifier ); DisplayConnectionString(newCluster!); await CreateSnapshot(newCluster!); await CleanupResources(newInstance, newCluster, parameterGroup); Console.WriteLine("Scenario complete."); Console.WriteLine(sepBar); } catch (Exception ex) { await CleanupResources(newInstance, newCluster, parameterGroup); logger.LogError(ex, "There was a problem executing the scenario."); } } ///

/// Choose the Aurora DB parameter group family from a list of available options. ///

/// The selected parameter group family. public static async Task ChooseParameterGroupFamilyAsync() { Console.WriteLine(sepBar); // 1. Get a list of available engines. var engines = await auroraWrapper.DescribeDBEngineVersionsForEngineAsync(engine); Console.WriteLine($"1. The following is a list of available DB parameter group families for engine {engine}:"); var parameterGroupFamilies = engines.GroupBy(e => e.DBParameterGroupFamily).ToList(); for (var i = 1; i <= parameterGroupFamilies.Count; i++) { var parameterGroupFamily = parameterGroupFamilies[i - 1]; // List the available parameter group families. Console.WriteLine( $"\t{i}. Family: {parameterGroupFamily.Key}"); } var choiceNumber = 0; while (choiceNumber < 1 || choiceNumber > parameterGroupFamilies.Count) { Console.WriteLine("2. Select an available DB parameter group family by entering a number from the preceding list:"); var choice = Console.ReadLine(); Int32.TryParse(choice, out choiceNumber); } var parameterGroupFamilyChoice = parameterGroupFamilies[choiceNumber - 1]; Console.WriteLine(sepBar); return parameterGroupFamilyChoice.Key; } ///

/// Create and get information on a DB parameter group. ///

/// The DBParameterGroupFamily for the new DB parameter group. /// The new DBParameterGroup. public static async Task CreateDBParameterGroupAsync(string dbParameterGroupFamily) { Console.WriteLine(sepBar); Console.WriteLine($"2. Create new DB parameter group with family {dbParameterGroupFamily}:"); var parameterGroup = await auroraWrapper.CreateCustomClusterParameterGroupAsync( dbParameterGroupFamily, "ExampleParameterGroup-" + DateTime.Now.Ticks, "New example parameter group"); var groupInfo = await auroraWrapper.DescribeCustomDBClusterParameterGroupAsync(parameterGroup.DBClusterParameterGroupName); Console.WriteLine( $"3. New DB parameter group created: \n\t{groupInfo?.Description}, \n\tARN {groupInfo?.DBClusterParameterGroupName}"); Console.WriteLine(sepBar); return parameterGroup; } ///

/// Get and describe parameters from a DBParameterGroup. ///

/// The name of the DBParameterGroup. /// Optional specific names of parameters to describe. /// The list of requested parameters. public static async Task> DescribeParametersInGroupAsync(string parameterGroupName, List? parameterNames = null) { Console.WriteLine(sepBar); Console.WriteLine("4. Get some parameters from the group."); Console.WriteLine(sepBar); var parameters = await auroraWrapper.DescribeDBClusterParametersInGroupAsync(parameterGroupName); var matchingParameters = parameters.Where(p => parameterNames == null || parameterNames.Contains(p.ParameterName)).ToList(); Console.WriteLine("5. Parameter information:"); matchingParameters.ForEach(p => Console.WriteLine( $"\n\tParameter: {p.ParameterName}." + $"\n\tDescription: {p.Description}." + $"\n\tAllowed Values: {p.AllowedValues}." + $"\n\tValue: {p.ParameterValue}.")); Console.WriteLine(sepBar); return matchingParameters; } ///

/// Modify a parameter from a DBParameterGroup. ///

/// Name of the DBParameterGroup. /// The parameters to modify. /// Async task. public static async Task ModifyParametersAsync(string parameterGroupName, List parameters) { Console.WriteLine(sepBar); Console.WriteLine("6. Modify some parameters in the group."); await auroraWrapper.ModifyIntegerParametersInGroupAsync(parameterGroupName, parameters); Console.WriteLine(sepBar); } ///

/// Describe the user source parameters in the group. ///

/// The name of the DBParameterGroup. /// Async task. public static async Task DescribeUserSourceParameters(string parameterGroupName) { Console.WriteLine(sepBar); Console.WriteLine("7. Describe updated user source parameters in the group."); var parameters = await auroraWrapper.DescribeDBClusterParametersInGroupAsync(parameterGroupName, "user"); parameters.ForEach(p => Console.WriteLine( $"\n\tParameter: {p.ParameterName}." + $"\n\tDescription: {p.Description}." + $"\n\tAllowed Values: {p.AllowedValues}." + $"\n\tValue: {p.ParameterValue}.")); Console.WriteLine(sepBar); } ///

/// Choose a DB engine version. ///

/// DB parameter group family for engine choice. /// The selected engine version. public static async Task ChooseDBEngineVersionAsync(string dbParameterGroupFamily) { Console.WriteLine(sepBar); // Get a list of allowed engines. var allowedEngines = await auroraWrapper.DescribeDBEngineVersionsForEngineAsync(engine, dbParameterGroupFamily); Console.WriteLine($"Available DB engine versions for parameter group family {dbParameterGroupFamily}:"); int i = 1; foreach (var version in allowedEngines) { Console.WriteLine( $"\t{i}. {version.DBEngineVersionDescription}."); i++; } var choiceNumber = 0; while (choiceNumber < 1 || choiceNumber > allowedEngines.Count) { Console.WriteLine("8. Select an available DB engine version by entering a number from the list above:"); var choice = Console.ReadLine(); Int32.TryParse(choice, out choiceNumber); } var engineChoice = allowedEngines[choiceNumber - 1]; Console.WriteLine(sepBar); return engineChoice; } ///

/// Create a new RDS DB cluster. ///

/// Parameter group to use for the DB cluster. /// Engine to use for the DB cluster. /// Engine version to use for the DB cluster. /// Cluster identifier to use for the DB cluster. /// The new DB cluster. public static async Task CreateNewCluster(DBClusterParameterGroup parameterGroup, string engineName, string engineVersion, string clusterIdentifier) { Console.WriteLine(sepBar); Console.WriteLine($"9. Create a new DB cluster with identifier {clusterIdentifier}."); DBCluster newCluster; var clusters = await auroraWrapper.DescribeDBClustersPagedAsync(); var isClusterCreated = clusters.Any(i => i.DBClusterIdentifier == clusterIdentifier); if (isClusterCreated) { Console.WriteLine("Cluster already created."); newCluster = clusters.First(i => i.DBClusterIdentifier == clusterIdentifier); } else { Console.WriteLine("Enter an admin username:"); var username = Console.ReadLine(); Console.WriteLine("Enter an admin password:"); var password = Console.ReadLine(); newCluster = await auroraWrapper.CreateDBClusterWithAdminAsync( "ExampleDatabase", clusterIdentifier, parameterGroup.DBClusterParameterGroupName, engineName, engineVersion, username!, password! ); Console.WriteLine("10. Waiting for DB cluster to be ready..."); while (newCluster.Status != "available") { Console.Write("."); Thread.Sleep(5000); clusters = await auroraWrapper.DescribeDBClustersPagedAsync(clusterIdentifier); newCluster = clusters.First(); } } Console.WriteLine(sepBar); return newCluster; } ///

/// Choose a DB instance class for a particular engine and engine version. ///

/// DB engine for DB instance choice. /// DB engine version for DB instance choice. /// The selected orderable DB instance option. public static async Task ChooseDBInstanceClass(string engine, string engineVersion) { Console.WriteLine(sepBar); // Get a list of allowed DB instance classes. var allowedInstances = await auroraWrapper.DescribeOrderableDBInstanceOptionsPagedAsync(engine, engineVersion); Console.WriteLine($"Available DB instance classes for engine {engine} and version {engineVersion}:"); int i = 1; foreach (var instance in allowedInstances) { Console.WriteLine( $"\t{i}. Instance class: {instance.DBInstanceClass} (storage type {instance.StorageType})"); i++; } var choiceNumber = 0; while (choiceNumber < 1 || choiceNumber > allowedInstances.Count) { Console.WriteLine("11. Select an available DB instance class by entering a number from the preceding list:"); var choice = Console.ReadLine(); Int32.TryParse(choice, out choiceNumber); } var instanceChoice = allowedInstances[choiceNumber - 1]; Console.WriteLine(sepBar); return instanceChoice; } ///

/// Create a new DB instance. ///

/// Engine to use for the DB instance. /// Engine version to use for the DB instance. /// Instance class to use for the DB instance. /// Instance identifier to use for the DB instance. /// The new DB instance. public static async Task CreateNewInstance( string clusterIdentifier, string engineName, string engineVersion, string instanceClass, string instanceIdentifier) { Console.WriteLine(sepBar); Console.WriteLine($"12. Create a new DB instance with identifier {instanceIdentifier}."); bool isInstanceReady = false; DBInstance newInstance; var instances = await auroraWrapper.DescribeDBInstancesPagedAsync(); isInstanceReady = instances.FirstOrDefault(i => i.DBInstanceIdentifier == instanceIdentifier)?.DBInstanceStatus == "available"; if (isInstanceReady) { Console.WriteLine("Instance already created."); newInstance = instances.First(i => i.DBInstanceIdentifier == instanceIdentifier); } else { newInstance = await auroraWrapper.CreateDBInstanceInClusterAsync( clusterIdentifier, instanceIdentifier, engineName, engineVersion, instanceClass ); Console.WriteLine("13. Waiting for DB instance to be ready..."); while (!isInstanceReady) { Console.Write("."); Thread.Sleep(5000); instances = await auroraWrapper.DescribeDBInstancesPagedAsync(instanceIdentifier); isInstanceReady = instances.FirstOrDefault()?.DBInstanceStatus == "available"; newInstance = instances.First(); } } Console.WriteLine(sepBar); return newInstance; } ///

/// Display a connection string for an Amazon RDS DB cluster. ///

/// The DB cluster to use to get a connection string. public static void DisplayConnectionString(DBCluster cluster) { Console.WriteLine(sepBar); // Display the connection string. Console.WriteLine("14. New DB cluster connection string: "); Console.WriteLine( $"\n{engine} -h {cluster.Endpoint} -P {cluster.Port} " + $"-u {cluster.MasterUsername} -p [YOUR PASSWORD]\n"); Console.WriteLine(sepBar); } ///

/// Create a snapshot from an Amazon RDS DB cluster. ///

/// DB cluster to use when creating a snapshot. /// The snapshot object. public static async Task CreateSnapshot(DBCluster cluster) { Console.WriteLine(sepBar); // Create a snapshot. Console.WriteLine($"15. Creating snapshot from DB cluster {cluster.DBClusterIdentifier}."); var snapshot = await auroraWrapper.CreateClusterSnapshotByIdentifierAsync( cluster.DBClusterIdentifier, "ExampleSnapshot-" + DateTime.Now.Ticks); // Wait for the snapshot to be available. bool isSnapshotReady = false; Console.WriteLine($"16. Waiting for snapshot to be ready..."); while (!isSnapshotReady) { Console.Write("."); Thread.Sleep(5000); var snapshots = await auroraWrapper.DescribeDBClusterSnapshotsByIdentifierAsync(cluster.DBClusterIdentifier); isSnapshotReady = snapshots.FirstOrDefault()?.Status == "available"; snapshot = snapshots.First(); } Console.WriteLine( $"Snapshot {snapshot.DBClusterSnapshotIdentifier} status is {snapshot.Status}."); Console.WriteLine(sepBar); return snapshot; } ///

/// Clean up resources from the scenario. ///

/// The instance to clean up. /// The cluster to clean up. /// The parameter group to clean up. /// Async Task. private static async Task CleanupResources( DBInstance? newInstance, DBCluster? newCluster, DBClusterParameterGroup? parameterGroup) { Console.WriteLine(new string('-', 80)); Console.WriteLine($"Clean up resources."); if (newInstance is not null && GetYesNoResponse($"\tClean up instance {newInstance.DBInstanceIdentifier}? (y/n)")) { // Delete the DB instance. Console.WriteLine($"17. Deleting the DB instance {newInstance.DBInstanceIdentifier}."); await auroraWrapper.DeleteDBInstanceByIdentifierAsync(newInstance.DBInstanceIdentifier); } if (newCluster is not null && GetYesNoResponse($"\tClean up cluster {newCluster.DBClusterIdentifier}? (y/n)")) { // Delete the DB cluster. Console.WriteLine($"18. Deleting the DB cluster {newCluster.DBClusterIdentifier}."); await auroraWrapper.DeleteDBClusterByIdentifierAsync(newCluster.DBClusterIdentifier); // Wait for the DB cluster to delete. Console.WriteLine($"19. Waiting for the DB cluster to delete..."); bool isClusterDeleted = false; while (!isClusterDeleted) { Console.Write("."); Thread.Sleep(5000); var cluster = await auroraWrapper.DescribeDBClustersPagedAsync(); isClusterDeleted = cluster.All(i => i.DBClusterIdentifier != newCluster.DBClusterIdentifier); } Console.WriteLine("DB cluster deleted."); } if (parameterGroup is not null && GetYesNoResponse($"\tClean up parameter group? (y/n)")) { Console.WriteLine($"20. Deleting the DB parameter group {parameterGroup.DBClusterParameterGroupName}."); await auroraWrapper.DeleteClusterParameterGroupByNameAsync(parameterGroup.DBClusterParameterGroupName); Console.WriteLine("Parameter group deleted."); } Console.WriteLine(new string('-', 80)); } ///

/// Get a yes or no response from the user. ///

/// The question string to print on the console. /// True if the user responds with a yes. private static bool GetYesNoResponse(string question) { Console.WriteLine(question); var ynResponse = Console.ReadLine(); var response = ynResponse != null && ynResponse.Equals("y", StringComparison.InvariantCultureIgnoreCase); return response; } ``` Aurora アクションを管理するためにシナリオによって呼び出されるラッパーメソッド。 ``` using Amazon.RDS; using Amazon.RDS.Model; namespace AuroraActions; ///

/// Wrapper for the Amazon Aurora cluster client operations. ///

public class AuroraWrapper { private readonly IAmazonRDS _amazonRDS; public AuroraWrapper(IAmazonRDS amazonRDS) { _amazonRDS = amazonRDS; } ///

/// Get a list of DB engine versions for a particular DB engine. ///

/// Create a custom cluster parameter group. ///

/// Describe the cluster parameters in a parameter group. ///

/// Get the description of a DB cluster parameter group by name. ///

/// Modify the specified integer parameters with new values from user input. ///

/// Get a list of orderable DB instance options for a specific /// engine and engine version. ///

/// Delete a particular parameter group by name. ///

/// Create a new cluster and database. ///

/// Returns a list of DB instances. ///

/// Returns a list of DB clusters. ///

/// Create an Amazon Relational Database Service (Amazon RDS) DB instance /// with a particular set of properties. Use the action DescribeDBInstancesAsync /// to determine when the DB instance is ready to use. ///

/// Create a snapshot of a cluster. ///

/// Return a list of DB snapshots for a particular DB cluster. ///

/// Delete a particular DB cluster. ///

/// Delete a particular DB instance. ///

/// DB instance identifier. /// DB instance object. public async Task DeleteDBInstanceByIdentifierAsync(string dbInstanceIdentifier) { var response = await _amazonRDS.DeleteDBInstanceAsync( new DeleteDBInstanceRequest() { DBInstanceIdentifier = dbInstanceIdentifier, SkipFinalSnapshot = true, DeleteAutomatedBackups = true }); return response.DBInstance; } } ``` + API の詳細については、「AWS SDK for .NET API リファレンス**」の以下のトピックを参照してください。 + [CreateDBCluster](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/CreateDBCluster) + [CreateDBClusterParameterGroup](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/CreateDBClusterParameterGroup) + [CreateDBClusterSnapshot](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/CreateDBClusterSnapshot) + [CreateDBInstance](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/CreateDBInstance) + [DeleteDBCluster](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/DeleteDBCluster) + [DeleteDBClusterParameterGroup](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/DeleteDBClusterParameterGroup) + [DeleteDBInstance](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/DeleteDBInstance) + [DescribeDBClusterParameterGroups](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/DescribeDBClusterParameterGroups) + [DescribeDBClusterParameters](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/DescribeDBClusterParameters) + [DescribeDBClusterSnapshots](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/DescribeDBClusterSnapshots) + [DescribeDBClusters](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/DescribeDBClusters) + [DescribeDBEngineVersions](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/DescribeDBEngineVersions) + [DescribeDBInstances](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/DescribeDBInstances) + [DescribeOrderableDBInstanceOptions](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/DescribeOrderableDBInstanceOptions) + [ModifyDBClusterParameterGroup](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/ModifyDBClusterParameterGroup) ------ #### [ C\$1\$1 ] **SDK for C\$1\$1** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region (overrides config file). // clientConfig.region = "us-east-1"; //! Routine which creates an Amazon Aurora DB cluster and demonstrates several operations //! on that cluster. /*! \sa gettingStartedWithDBClusters() \param clientConfiguration: AWS client configuration. \return bool: Successful completion. */ bool AwsDoc::Aurora::gettingStartedWithDBClusters( const Aws::Client::ClientConfiguration &clientConfig) { Aws::RDS::RDSClient client(clientConfig); printAsterisksLine(); std::cout << "Welcome to the Amazon Relational Database Service (Amazon Aurora)" << std::endl; std::cout << "get started with DB clusters demo." << std::endl; printAsterisksLine(); std::cout << "Checking for an existing DB cluster parameter group named '" << CLUSTER_PARAMETER_GROUP_NAME << "'." << std::endl; Aws::String dbParameterGroupFamily("Undefined"); bool parameterGroupFound = true; { // 1. Check if the DB cluster parameter group already exists. Aws::RDS::Model::DescribeDBClusterParameterGroupsRequest request; request.SetDBClusterParameterGroupName(CLUSTER_PARAMETER_GROUP_NAME); Aws::RDS::Model::DescribeDBClusterParameterGroupsOutcome outcome = client.DescribeDBClusterParameterGroups(request); if (outcome.IsSuccess()) { std::cout << "DB cluster parameter group named '" << CLUSTER_PARAMETER_GROUP_NAME << "' already exists." << std::endl; dbParameterGroupFamily = outcome.GetResult().GetDBClusterParameterGroups()[0].GetDBParameterGroupFamily(); } else if (outcome.GetError().GetErrorType() == Aws::RDS::RDSErrors::D_B_PARAMETER_GROUP_NOT_FOUND_FAULT) { std::cout << "DB cluster parameter group named '" << CLUSTER_PARAMETER_GROUP_NAME << "' does not exist." << std::endl; parameterGroupFound = false; } else { std::cerr << "Error with Aurora::DescribeDBClusterParameterGroups. " << outcome.GetError().GetMessage() << std::endl; return false; } } if (!parameterGroupFound) { Aws::Vector engineVersions; // 2. Get available parameter group families for the specified engine. if (!getDBEngineVersions(DB_ENGINE, NO_PARAMETER_GROUP_FAMILY, engineVersions, client)) { return false; } std::cout << "Getting available parameter group families for " << DB_ENGINE << "." << std::endl; std::vector families; for (const Aws::RDS::Model::DBEngineVersion &version: engineVersions) { Aws::String family = version.GetDBParameterGroupFamily(); if (std::find(families.begin(), families.end(), family) == families.end()) { families.push_back(family); std::cout << " " << families.size() << ": " << family << std::endl; } } int choice = askQuestionForIntRange("Which family do you want to use? ", 1, static_cast(families.size())); dbParameterGroupFamily = families[choice - 1]; } if (!parameterGroupFound) { // 3. Create a DB cluster parameter group. Aws::RDS::Model::CreateDBClusterParameterGroupRequest request; request.SetDBClusterParameterGroupName(CLUSTER_PARAMETER_GROUP_NAME); request.SetDBParameterGroupFamily(dbParameterGroupFamily); request.SetDescription("Example cluster parameter group."); Aws::RDS::Model::CreateDBClusterParameterGroupOutcome outcome = client.CreateDBClusterParameterGroup(request); if (outcome.IsSuccess()) { std::cout << "The DB cluster parameter group was successfully created." << std::endl; } else { std::cerr << "Error with Aurora::CreateDBClusterParameterGroup. " << outcome.GetError().GetMessage() << std::endl; return false; } } printAsterisksLine(); std::cout << "Let's set some parameter values in your cluster parameter group." << std::endl; Aws::Vector autoIncrementParameters; // 4. Get the parameters in the DB cluster parameter group. if (!getDBCLusterParameters(CLUSTER_PARAMETER_GROUP_NAME, AUTO_INCREMENT_PREFIX, NO_SOURCE, autoIncrementParameters, client)) { cleanUpResources(CLUSTER_PARAMETER_GROUP_NAME, "", "", client); return false; } Aws::Vector updateParameters; for (Aws::RDS::Model::Parameter &autoIncParameter: autoIncrementParameters) { if (autoIncParameter.GetIsModifiable() && (autoIncParameter.GetDataType() == "integer")) { std::cout << "The " << autoIncParameter.GetParameterName() << " is described as: " << autoIncParameter.GetDescription() << "." << std::endl; if (autoIncParameter.ParameterValueHasBeenSet()) { std::cout << "The current value is " << autoIncParameter.GetParameterValue() << "." << std::endl; } std::vector splitValues = splitToInts( autoIncParameter.GetAllowedValues(), '-'); if (splitValues.size() == 2) { int newValue = askQuestionForIntRange( Aws::String("Enter a new value between ") + autoIncParameter.GetAllowedValues() + ": ", splitValues[0], splitValues[1]); autoIncParameter.SetParameterValue(std::to_string(newValue)); updateParameters.push_back(autoIncParameter); } else { std::cerr << "Error parsing " << autoIncParameter.GetAllowedValues() << std::endl; } } } { // 5. Modify the auto increment parameters in the DB cluster parameter group. Aws::RDS::Model::ModifyDBClusterParameterGroupRequest request; request.SetDBClusterParameterGroupName(CLUSTER_PARAMETER_GROUP_NAME); request.SetParameters(updateParameters); Aws::RDS::Model::ModifyDBClusterParameterGroupOutcome outcome = client.ModifyDBClusterParameterGroup(request); if (outcome.IsSuccess()) { std::cout << "The DB cluster parameter group was successfully modified." << std::endl; } else { std::cerr << "Error with Aurora::ModifyDBClusterParameterGroup. " << outcome.GetError().GetMessage() << std::endl; } } std::cout << "You can get a list of parameters you've set by specifying a source of 'user'." << std::endl; Aws::Vector userParameters; // 6. Display the modified parameters in the DB cluster parameter group. if (!getDBCLusterParameters(CLUSTER_PARAMETER_GROUP_NAME, NO_NAME_PREFIX, "user", userParameters, client)) { cleanUpResources(CLUSTER_PARAMETER_GROUP_NAME, "", "", client); return false; } for (const auto &userParameter: userParameters) { std::cout << " " << userParameter.GetParameterName() << ", " << userParameter.GetDescription() << ", parameter value - " << userParameter.GetParameterValue() << std::endl; } printAsterisksLine(); std::cout << "Checking for an existing DB Cluster." << std::endl; Aws::RDS::Model::DBCluster dbCluster; // 7. Check if the DB cluster already exists. if (!describeDBCluster(DB_CLUSTER_IDENTIFIER, dbCluster, client)) { cleanUpResources(CLUSTER_PARAMETER_GROUP_NAME, "", "", client); return false; } Aws::String engineVersionName; Aws::String engineName; if (dbCluster.DBClusterIdentifierHasBeenSet()) { std::cout << "The DB cluster already exists." << std::endl; engineVersionName = dbCluster.GetEngineVersion(); engineName = dbCluster.GetEngine(); } else { std::cout << "Let's create a DB cluster." << std::endl; const Aws::String administratorName = askQuestion( "Enter an administrator username for the database: "); const Aws::String administratorPassword = askQuestion( "Enter a password for the administrator (at least 8 characters): "); Aws::Vector engineVersions; // 8. Get a list of engine versions for the parameter group family. if (!getDBEngineVersions(DB_ENGINE, dbParameterGroupFamily, engineVersions, client)) { cleanUpResources(CLUSTER_PARAMETER_GROUP_NAME, "", "", client); return false; } std::cout << "The available engines for your parameter group family are:" << std::endl; int index = 1; for (const Aws::RDS::Model::DBEngineVersion &engineVersion: engineVersions) { std::cout << " " << index << ": " << engineVersion.GetEngineVersion() << std::endl; ++index; } int choice = askQuestionForIntRange("Which engine do you want to use? ", 1, static_cast(engineVersions.size())); const Aws::RDS::Model::DBEngineVersion engineVersion = engineVersions[choice - 1]; engineName = engineVersion.GetEngine(); engineVersionName = engineVersion.GetEngineVersion(); std::cout << "Creating a DB cluster named '" << DB_CLUSTER_IDENTIFIER << "' and database '" << DB_NAME << "'.\n" << "The DB cluster is configured to use your custom cluster parameter group '" << CLUSTER_PARAMETER_GROUP_NAME << "', and \n" << "selected engine version " << engineVersion.GetEngineVersion() << ".\nThis typically takes several minutes." << std::endl; Aws::RDS::Model::CreateDBClusterRequest request; request.SetDBClusterIdentifier(DB_CLUSTER_IDENTIFIER); request.SetDBClusterParameterGroupName(CLUSTER_PARAMETER_GROUP_NAME); request.SetEngine(engineName); request.SetEngineVersion(engineVersionName); request.SetMasterUsername(administratorName); request.SetMasterUserPassword(administratorPassword); Aws::RDS::Model::CreateDBClusterOutcome outcome = client.CreateDBCluster(request); if (outcome.IsSuccess()) { std::cout << "The DB cluster creation has started." << std::endl; } else { std::cerr << "Error with Aurora::CreateDBCluster. " << outcome.GetError().GetMessage() << std::endl; cleanUpResources(CLUSTER_PARAMETER_GROUP_NAME, "", "", client); return false; } } std::cout << "Waiting for the DB cluster to become available." << std::endl; int counter = 0; // 11. Wait for the DB cluster to become available. do { std::this_thread::sleep_for(std::chrono::seconds(1)); ++counter; if (counter > 900) { std::cerr << "Wait for cluster to become available timed out ofter " << counter << " seconds." << std::endl; cleanUpResources(CLUSTER_PARAMETER_GROUP_NAME, DB_CLUSTER_IDENTIFIER, "", client); return false; } dbCluster = Aws::RDS::Model::DBCluster(); if (!describeDBCluster(DB_CLUSTER_IDENTIFIER, dbCluster, client)) { cleanUpResources(CLUSTER_PARAMETER_GROUP_NAME, DB_CLUSTER_IDENTIFIER, "", client); return false; } if ((counter % 20) == 0) { std::cout << "Current DB cluster status is '" << dbCluster.GetStatus() << "' after " << counter << " seconds." << std::endl; } } while (dbCluster.GetStatus() != "available"); if (dbCluster.GetStatus() == "available") { std::cout << "The DB cluster has been created." << std::endl; } printAsterisksLine(); Aws::RDS::Model::DBInstance dbInstance; // 11. Check if the DB instance already exists. if (!describeDBInstance(DB_INSTANCE_IDENTIFIER, dbInstance, client)) { cleanUpResources(CLUSTER_PARAMETER_GROUP_NAME, DB_CLUSTER_IDENTIFIER, "", client); return false; } if (dbInstance.DbInstancePortHasBeenSet()) { std::cout << "The DB instance already exists." << std::endl; } else { std::cout << "Let's create a DB instance." << std::endl; Aws::String dbInstanceClass; // 12. Get a list of instance classes. if (!chooseDBInstanceClass(engineName, engineVersionName, dbInstanceClass, client)) { cleanUpResources(CLUSTER_PARAMETER_GROUP_NAME, DB_CLUSTER_IDENTIFIER, "", client); return false; } std::cout << "Creating a DB instance named '" << DB_INSTANCE_IDENTIFIER << "' with selected DB instance class '" << dbInstanceClass << "'.\nThis typically takes several minutes." << std::endl; // 13. Create a DB instance. Aws::RDS::Model::CreateDBInstanceRequest request; request.SetDBInstanceIdentifier(DB_INSTANCE_IDENTIFIER); request.SetDBClusterIdentifier(DB_CLUSTER_IDENTIFIER); request.SetEngine(engineName); request.SetDBInstanceClass(dbInstanceClass); Aws::RDS::Model::CreateDBInstanceOutcome outcome = client.CreateDBInstance(request); if (outcome.IsSuccess()) { std::cout << "The DB instance creation has started." << std::endl; } else { std::cerr << "Error with RDS::CreateDBInstance. " << outcome.GetError().GetMessage() << std::endl; cleanUpResources(CLUSTER_PARAMETER_GROUP_NAME, DB_CLUSTER_IDENTIFIER, "", client); return false; } } std::cout << "Waiting for the DB instance to become available." << std::endl; counter = 0; // 14. Wait for the DB instance to become available. do { std::this_thread::sleep_for(std::chrono::seconds(1)); ++counter; if (counter > 900) { std::cerr << "Wait for instance to become available timed out ofter " << counter << " seconds." << std::endl; cleanUpResources(CLUSTER_PARAMETER_GROUP_NAME, DB_CLUSTER_IDENTIFIER, DB_INSTANCE_IDENTIFIER, client); return false; } dbInstance = Aws::RDS::Model::DBInstance(); if (!describeDBInstance(DB_INSTANCE_IDENTIFIER, dbInstance, client)) { cleanUpResources(CLUSTER_PARAMETER_GROUP_NAME, DB_CLUSTER_IDENTIFIER, DB_INSTANCE_IDENTIFIER, client); return false; } if ((counter % 20) == 0) { std::cout << "Current DB instance status is '" << dbInstance.GetDBInstanceStatus() << "' after " << counter << " seconds." << std::endl; } } while (dbInstance.GetDBInstanceStatus() != "available"); if (dbInstance.GetDBInstanceStatus() == "available") { std::cout << "The DB instance has been created." << std::endl; } // 15. Display the connection string that can be used to connect a 'mysql' shell to the database. displayConnection(dbCluster); printAsterisksLine(); if (askYesNoQuestion( "Do you want to create a snapshot of your DB cluster (y/n)? ")) { Aws::String snapshotID(DB_CLUSTER_IDENTIFIER + "-" + Aws::String(Aws::Utils::UUID::RandomUUID())); { std::cout << "Creating a snapshot named " << snapshotID << "." << std::endl; std::cout << "This typically takes a few minutes." << std::endl; // 16. Create a snapshot of the DB cluster. (CreateDBClusterSnapshot) Aws::RDS::Model::CreateDBClusterSnapshotRequest request; request.SetDBClusterIdentifier(DB_CLUSTER_IDENTIFIER); request.SetDBClusterSnapshotIdentifier(snapshotID); Aws::RDS::Model::CreateDBClusterSnapshotOutcome outcome = client.CreateDBClusterSnapshot(request); if (outcome.IsSuccess()) { std::cout << "Snapshot creation has started." << std::endl; } else { std::cerr << "Error with Aurora::CreateDBClusterSnapshot. " << outcome.GetError().GetMessage() << std::endl; cleanUpResources(CLUSTER_PARAMETER_GROUP_NAME, DB_CLUSTER_IDENTIFIER, DB_INSTANCE_IDENTIFIER, client); return false; } } std::cout << "Waiting for the snapshot to become available." << std::endl; Aws::RDS::Model::DBClusterSnapshot snapshot; counter = 0; do { std::this_thread::sleep_for(std::chrono::seconds(1)); ++counter; if (counter > 600) { std::cerr << "Wait for snapshot to be available timed out ofter " << counter << " seconds." << std::endl; cleanUpResources(CLUSTER_PARAMETER_GROUP_NAME, DB_CLUSTER_IDENTIFIER, DB_INSTANCE_IDENTIFIER, client); return false; } // 17. Wait for the snapshot to become available. Aws::RDS::Model::DescribeDBClusterSnapshotsRequest request; request.SetDBClusterSnapshotIdentifier(snapshotID); Aws::RDS::Model::DescribeDBClusterSnapshotsOutcome outcome = client.DescribeDBClusterSnapshots(request); if (outcome.IsSuccess()) { snapshot = outcome.GetResult().GetDBClusterSnapshots()[0]; } else { std::cerr << "Error with Aurora::DescribeDBClusterSnapshots. " << outcome.GetError().GetMessage() << std::endl; cleanUpResources(CLUSTER_PARAMETER_GROUP_NAME, DB_CLUSTER_IDENTIFIER, DB_INSTANCE_IDENTIFIER, client); return false; } if ((counter % 20) == 0) { std::cout << "Current snapshot status is '" << snapshot.GetStatus() << "' after " << counter << " seconds." << std::endl; } } while (snapshot.GetStatus() != "available"); if (snapshot.GetStatus() != "available") { std::cout << "A snapshot has been created." << std::endl; } } printAsterisksLine(); bool result = true; if (askYesNoQuestion( "Do you want to delete the DB cluster, DB instance, and parameter group (y/n)? ")) { result = cleanUpResources(CLUSTER_PARAMETER_GROUP_NAME, DB_CLUSTER_IDENTIFIER, DB_INSTANCE_IDENTIFIER, client); } return result; } //! Routine which gets a DB cluster description. /*! \sa describeDBCluster() \param dbClusterIdentifier: A DB cluster identifier. \param clusterResult: The 'DBCluster' object containing the description. \param client: 'RDSClient' instance. \return bool: Successful completion. */ bool AwsDoc::Aurora::describeDBCluster(const Aws::String &dbClusterIdentifier, Aws::RDS::Model::DBCluster &clusterResult, const Aws::RDS::RDSClient &client) { Aws::RDS::Model::DescribeDBClustersRequest request; request.SetDBClusterIdentifier(dbClusterIdentifier); Aws::RDS::Model::DescribeDBClustersOutcome outcome = client.DescribeDBClusters(request); bool result = true; if (outcome.IsSuccess()) { clusterResult = outcome.GetResult().GetDBClusters()[0]; } else if (outcome.GetError().GetErrorType() != Aws::RDS::RDSErrors::D_B_CLUSTER_NOT_FOUND_FAULT) { result = false; std::cerr << "Error with Aurora::GDescribeDBClusters. " << outcome.GetError().GetMessage() << std::endl; } // This example does not log an error if the DB cluster does not exist. // Instead, clusterResult is set to empty. else { clusterResult = Aws::RDS::Model::DBCluster(); } return result; } //! Routine which gets DB parameters using the 'DescribeDBClusterParameters' api. /*! \sa getDBCLusterParameters() \param parameterGroupName: The name of the cluster parameter group. \param namePrefix: Prefix string to filter results by parameter name. \param source: A source such as 'user', ignored if empty. \param parametersResult: Vector of 'Parameter' objects returned by the routine. \param client: 'RDSClient' instance. \return bool: Successful completion. */ bool AwsDoc::Aurora::getDBCLusterParameters(const Aws::String ¶meterGroupName, const Aws::String &namePrefix, const Aws::String &source, Aws::Vector ¶metersResult, const Aws::RDS::RDSClient &client) { Aws::String marker; // The marker is used for pagination. do { Aws::RDS::Model::DescribeDBClusterParametersRequest request; request.SetDBClusterParameterGroupName(CLUSTER_PARAMETER_GROUP_NAME); if (!marker.empty()) { request.SetMarker(marker); } if (!source.empty()) { request.SetSource(source); } Aws::RDS::Model::DescribeDBClusterParametersOutcome outcome = client.DescribeDBClusterParameters(request); if (outcome.IsSuccess()) { const Aws::Vector ¶meters = outcome.GetResult().GetParameters(); for (const Aws::RDS::Model::Parameter ¶meter: parameters) { if (!namePrefix.empty()) { if (parameter.GetParameterName().find(namePrefix) == 0) { parametersResult.push_back(parameter); } } else { parametersResult.push_back(parameter); } } marker = outcome.GetResult().GetMarker(); } else { std::cerr << "Error with Aurora::DescribeDBClusterParameters. " << outcome.GetError().GetMessage() << std::endl; return false; } } while (!marker.empty()); return true; } //! Routine which gets available DB engine versions for an engine name and //! an optional parameter group family. /*! \sa getDBEngineVersions() \param engineName: A DB engine name. \param parameterGroupFamily: A parameter group family name, ignored if empty. \param engineVersionsResult: Vector of 'DBEngineVersion' objects returned by the routine. \param client: 'RDSClient' instance. \return bool: Successful completion. */ bool AwsDoc::Aurora::getDBEngineVersions(const Aws::String &engineName, const Aws::String ¶meterGroupFamily, Aws::Vector &engineVersionsResult, const Aws::RDS::RDSClient &client) { Aws::RDS::Model::DescribeDBEngineVersionsRequest request; request.SetEngine(engineName); if (!parameterGroupFamily.empty()) { request.SetDBParameterGroupFamily(parameterGroupFamily); } engineVersionsResult.clear(); Aws::String marker; // The marker is used for pagination. do { if (!marker.empty()) { request.SetMarker(marker); } Aws::RDS::Model::DescribeDBEngineVersionsOutcome outcome = client.DescribeDBEngineVersions(request); if (outcome.IsSuccess()) { const Aws::Vector &engineVersions = outcome.GetResult().GetDBEngineVersions(); engineVersionsResult.insert(engineVersionsResult.end(), engineVersions.begin(), engineVersions.end()); marker = outcome.GetResult().GetMarker(); } else { std::cerr << "Error with Aurora::DescribeDBEngineVersionsRequest. " << outcome.GetError().GetMessage() << std::endl; } } while (!marker.empty()); return true; } //! Routine which gets a DB instance description. /*! \sa describeDBCluster() \param dbInstanceIdentifier: A DB instance identifier. \param instanceResult: The 'DBInstance' object containing the description. \param client: 'RDSClient' instance. \return bool: Successful completion. */ bool AwsDoc::Aurora::describeDBInstance(const Aws::String &dbInstanceIdentifier, Aws::RDS::Model::DBInstance &instanceResult, const Aws::RDS::RDSClient &client) { Aws::RDS::Model::DescribeDBInstancesRequest request; request.SetDBInstanceIdentifier(dbInstanceIdentifier); Aws::RDS::Model::DescribeDBInstancesOutcome outcome = client.DescribeDBInstances(request); bool result = true; if (outcome.IsSuccess()) { instanceResult = outcome.GetResult().GetDBInstances()[0]; } else if (outcome.GetError().GetErrorType() != Aws::RDS::RDSErrors::D_B_INSTANCE_NOT_FOUND_FAULT) { result = false; std::cerr << "Error with Aurora::DescribeDBInstances. " << outcome.GetError().GetMessage() << std::endl; } // This example does not log an error if the DB instance does not exist. // Instead, instanceResult is set to empty. else { instanceResult = Aws::RDS::Model::DBInstance(); } return result; } //! Routine which gets available DB instance classes, displays the list //! to the user, and returns the user selection. /*! \sa chooseDBInstanceClass() \param engineName: The DB engine name. \param engineVersion: The DB engine version. \param dbInstanceClass: String for DB instance class chosen by the user. \param client: 'RDSClient' instance. \return bool: Successful completion. */ bool AwsDoc::Aurora::chooseDBInstanceClass(const Aws::String &engine, const Aws::String &engineVersion, Aws::String &dbInstanceClass, const Aws::RDS::RDSClient &client) { std::vector instanceClasses; Aws::String marker; // The marker is used for pagination. do { Aws::RDS::Model::DescribeOrderableDBInstanceOptionsRequest request; request.SetEngine(engine); request.SetEngineVersion(engineVersion); if (!marker.empty()) { request.SetMarker(marker); } Aws::RDS::Model::DescribeOrderableDBInstanceOptionsOutcome outcome = client.DescribeOrderableDBInstanceOptions(request); if (outcome.IsSuccess()) { const Aws::Vector &options = outcome.GetResult().GetOrderableDBInstanceOptions(); for (const Aws::RDS::Model::OrderableDBInstanceOption &option: options) { const Aws::String &instanceClass = option.GetDBInstanceClass(); if (std::find(instanceClasses.begin(), instanceClasses.end(), instanceClass) == instanceClasses.end()) { instanceClasses.push_back(instanceClass); } } marker = outcome.GetResult().GetMarker(); } else { std::cerr << "Error with Aurora::DescribeOrderableDBInstanceOptions. " << outcome.GetError().GetMessage() << std::endl; return false; } } while (!marker.empty()); std::cout << "The available DB instance classes for your database engine are:" << std::endl; for (int i = 0; i < instanceClasses.size(); ++i) { std::cout << " " << i + 1 << ": " << instanceClasses[i] << std::endl; } int choice = askQuestionForIntRange( "Which DB instance class do you want to use? ", 1, static_cast(instanceClasses.size())); dbInstanceClass = instanceClasses[choice - 1]; return true; } //! Routine which deletes resources created by the scenario. /*! \sa cleanUpResources() \param parameterGroupName: A parameter group name, this may be empty. \param dbInstanceIdentifier: A DB instance identifier, this may be empty. \param client: 'RDSClient' instance. \return bool: Successful completion. */ bool AwsDoc::Aurora::cleanUpResources(const Aws::String ¶meterGroupName, const Aws::String &dbClusterIdentifier, const Aws::String &dbInstanceIdentifier, const Aws::RDS::RDSClient &client) { bool result = true; bool instanceDeleting = false; bool clusterDeleting = false; if (!dbInstanceIdentifier.empty()) { { // 18. Delete the DB instance. Aws::RDS::Model::DeleteDBInstanceRequest request; request.SetDBInstanceIdentifier(dbInstanceIdentifier); request.SetSkipFinalSnapshot(true); request.SetDeleteAutomatedBackups(true); Aws::RDS::Model::DeleteDBInstanceOutcome outcome = client.DeleteDBInstance(request); if (outcome.IsSuccess()) { std::cout << "DB instance deletion has started." << std::endl; instanceDeleting = true; std::cout << "Waiting for DB instance to delete before deleting the parameter group." << std::endl; } else { std::cerr << "Error with Aurora::DeleteDBInstance. " << outcome.GetError().GetMessage() << std::endl; result = false; } } } if (!dbClusterIdentifier.empty()) { { // 19. Delete the DB cluster. Aws::RDS::Model::DeleteDBClusterRequest request; request.SetDBClusterIdentifier(dbClusterIdentifier); request.SetSkipFinalSnapshot(true); Aws::RDS::Model::DeleteDBClusterOutcome outcome = client.DeleteDBCluster(request); if (outcome.IsSuccess()) { std::cout << "DB cluster deletion has started." << std::endl; clusterDeleting = true; std::cout << "Waiting for DB cluster to delete before deleting the parameter group." << std::endl; std::cout << "This may take a while." << std::endl; } else { std::cerr << "Error with Aurora::DeleteDBCluster. " << outcome.GetError().GetMessage() << std::endl; result = false; } } } int counter = 0; while (clusterDeleting || instanceDeleting) { // 20. Wait for the DB cluster and instance to be deleted. std::this_thread::sleep_for(std::chrono::seconds(1)); ++counter; if (counter > 800) { std::cerr << "Wait for instance to delete timed out ofter " << counter << " seconds." << std::endl; return false; } Aws::RDS::Model::DBInstance dbInstance = Aws::RDS::Model::DBInstance(); if (instanceDeleting) { if (!describeDBInstance(dbInstanceIdentifier, dbInstance, client)) { return false; } instanceDeleting = dbInstance.DBInstanceIdentifierHasBeenSet(); } Aws::RDS::Model::DBCluster dbCluster = Aws::RDS::Model::DBCluster(); if (clusterDeleting) { if (!describeDBCluster(dbClusterIdentifier, dbCluster, client)) { return false; } clusterDeleting = dbCluster.DBClusterIdentifierHasBeenSet(); } if ((counter % 20) == 0) { if (instanceDeleting) { std::cout << "Current DB instance status is '" << dbInstance.GetDBInstanceStatus() << "." << std::endl; } if (clusterDeleting) { std::cout << "Current DB cluster status is '" << dbCluster.GetStatus() << "." << std::endl; } } } if (!parameterGroupName.empty()) { // 21. Delete the DB cluster parameter group. Aws::RDS::Model::DeleteDBClusterParameterGroupRequest request; request.SetDBClusterParameterGroupName(parameterGroupName); Aws::RDS::Model::DeleteDBClusterParameterGroupOutcome outcome = client.DeleteDBClusterParameterGroup(request); if (outcome.IsSuccess()) { std::cout << "The DB parameter group was successfully deleted." << std::endl; } else { std::cerr << "Error with Aurora::DeleteDBClusterParameterGroup. " << outcome.GetError().GetMessage() << std::endl; result = false; } } return result; } ``` + API の詳細については、「AWS SDK for C\$1\$1 API リファレンス**」の以下のトピックを参照してください。 + [CreateDBCluster](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/CreateDBCluster) + [CreateDBClusterParameterGroup](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/CreateDBClusterParameterGroup) + [CreateDBClusterSnapshot](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/CreateDBClusterSnapshot) + [CreateDBInstance](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/CreateDBInstance) + [DeleteDBCluster](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/DeleteDBCluster) + [DeleteDBClusterParameterGroup](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/DeleteDBClusterParameterGroup) + [DeleteDBInstance](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/DeleteDBInstance) + [DescribeDBClusterParameterGroups](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/DescribeDBClusterParameterGroups) + [DescribeDBClusterParameters](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/DescribeDBClusterParameters) + [DescribeDBClusterSnapshots](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/DescribeDBClusterSnapshots) + [DescribeDBClusters](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/DescribeDBClusters) + [DescribeDBEngineVersions](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/DescribeDBEngineVersions) + [DescribeDBInstances](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/DescribeDBInstances) + [DescribeOrderableDBInstanceOptions](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/DescribeOrderableDBInstanceOptions) + [ModifyDBClusterParameterGroup](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/ModifyDBClusterParameterGroup) ------ #### [ Go ] **SDK for Go V2** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/gov2/aurora#code-examples)での設定と実行の方法を確認してください。コマンドプロンプトからインタラクティブなシナリオを実行します。 ``` import ( "aurora/actions" "context" "fmt" "log" "slices" "sort" "strconv" "strings" "time" "github.com/aws/aws-sdk-go-v2/aws" "github.com/aws/aws-sdk-go-v2/service/rds" "github.com/aws/aws-sdk-go-v2/service/rds/types" "github.com/awsdocs/aws-doc-sdk-examples/gov2/demotools" "github.com/google/uuid" ) // GetStartedClusters is an interactive example that shows you how to use the AWS SDK for Go // with Amazon Aurora to do the following: // // 1. Create a custom DB cluster parameter group and set parameter values. // 2. Create an Aurora DB cluster that is configured to use the parameter group. // 3. Create a DB instance in the DB cluster that contains a database. // 4. Take a snapshot of the DB cluster. // 5. Delete the DB instance, DB cluster, and parameter group. type GetStartedClusters struct { sdkConfig aws.Config dbClusters actions.DbClusters questioner demotools.IQuestioner helper IScenarioHelper isTestRun bool } // NewGetStartedClusters constructs a GetStartedClusters instance from a configuration. // It uses the specified config to get an Amazon Relational Database Service (Amazon RDS) // client and create wrappers for the actions used in the scenario. func NewGetStartedClusters(sdkConfig aws.Config, questioner demotools.IQuestioner, helper IScenarioHelper) GetStartedClusters { auroraClient := rds.NewFromConfig(sdkConfig) return GetStartedClusters{ sdkConfig: sdkConfig, dbClusters: actions.DbClusters{AuroraClient: auroraClient}, questioner: questioner, helper: helper, } } // Run runs the interactive scenario. func (scenario GetStartedClusters) Run(ctx context.Context, dbEngine string, parameterGroupName string, clusterName string, dbName string) { defer func() { if r := recover(); r != nil { log.Println("Something went wrong with the demo.") } }() log.Println(strings.Repeat("-", 88)) log.Println("Welcome to the Amazon Aurora DB Cluster demo.") log.Println(strings.Repeat("-", 88)) parameterGroup := scenario.CreateParameterGroup(ctx, dbEngine, parameterGroupName) scenario.SetUserParameters(ctx, parameterGroupName) cluster := scenario.CreateCluster(ctx, clusterName, dbEngine, dbName, parameterGroup) scenario.helper.Pause(5) dbInstance := scenario.CreateInstance(ctx, cluster) scenario.DisplayConnection(cluster) scenario.CreateSnapshot(ctx, clusterName) scenario.Cleanup(ctx, dbInstance, cluster, parameterGroup) log.Println(strings.Repeat("-", 88)) log.Println("Thanks for watching!") log.Println(strings.Repeat("-", 88)) } // CreateParameterGroup shows how to get available engine versions for a specified // database engine and create a DB cluster parameter group that is compatible with a // selected engine family. func (scenario GetStartedClusters) CreateParameterGroup(ctx context.Context, dbEngine string, parameterGroupName string) *types.DBClusterParameterGroup { log.Printf("Checking for an existing DB cluster parameter group named %v.\n", parameterGroupName) parameterGroup, err := scenario.dbClusters.GetParameterGroup(ctx, parameterGroupName) if err != nil { panic(err) } if parameterGroup == nil { log.Printf("Getting available database engine versions for %v.\n", dbEngine) engineVersions, err := scenario.dbClusters.GetEngineVersions(ctx, dbEngine, "") if err != nil { panic(err) } familySet := map[string]struct{}{} for _, family := range engineVersions { familySet[*family.DBParameterGroupFamily] = struct{}{} } var families []string for family := range familySet { families = append(families, family) } sort.Strings(families) familyIndex := scenario.questioner.AskChoice("Which family do you want to use?\n", families) log.Println("Creating a DB cluster parameter group.") _, err = scenario.dbClusters.CreateParameterGroup( ctx, parameterGroupName, families[familyIndex], "Example parameter group.") if err != nil { panic(err) } parameterGroup, err = scenario.dbClusters.GetParameterGroup(ctx, parameterGroupName) if err != nil { panic(err) } } log.Printf("Parameter group %v:\n", *parameterGroup.DBParameterGroupFamily) log.Printf("\tName: %v\n", *parameterGroup.DBClusterParameterGroupName) log.Printf("\tARN: %v\n", *parameterGroup.DBClusterParameterGroupArn) log.Printf("\tFamily: %v\n", *parameterGroup.DBParameterGroupFamily) log.Printf("\tDescription: %v\n", *parameterGroup.Description) log.Println(strings.Repeat("-", 88)) return parameterGroup } // SetUserParameters shows how to get the parameters contained in a custom parameter // group and update some of the parameter values in the group. func (scenario GetStartedClusters) SetUserParameters(ctx context.Context, parameterGroupName string) { log.Println("Let's set some parameter values in your parameter group.") dbParameters, err := scenario.dbClusters.GetParameters(ctx, parameterGroupName, "") if err != nil { panic(err) } var updateParams []types.Parameter for _, dbParam := range dbParameters { if strings.HasPrefix(*dbParam.ParameterName, "auto_increment") && *dbParam.IsModifiable && *dbParam.DataType == "integer" { log.Printf("The %v parameter is described as:\n\t%v", *dbParam.ParameterName, *dbParam.Description) rangeSplit := strings.Split(*dbParam.AllowedValues, "-") lower, _ := strconv.Atoi(rangeSplit[0]) upper, _ := strconv.Atoi(rangeSplit[1]) newValue := scenario.questioner.AskInt( fmt.Sprintf("Enter a value between %v and %v:", lower, upper), demotools.InIntRange{Lower: lower, Upper: upper}) dbParam.ParameterValue = aws.String(strconv.Itoa(newValue)) updateParams = append(updateParams, dbParam) } } err = scenario.dbClusters.UpdateParameters(ctx, parameterGroupName, updateParams) if err != nil { panic(err) } log.Println("You can get a list of parameters you've set by specifying a source of 'user'.") userParameters, err := scenario.dbClusters.GetParameters(ctx, parameterGroupName, "user") if err != nil { panic(err) } log.Println("Here are the parameters you've set:") for _, param := range userParameters { log.Printf("\t%v: %v\n", *param.ParameterName, *param.ParameterValue) } log.Println(strings.Repeat("-", 88)) } // CreateCluster shows how to create an Aurora DB cluster that contains a database // of a specified type. The database is also configured to use a custom DB cluster // parameter group. func (scenario GetStartedClusters) CreateCluster(ctx context.Context, clusterName string, dbEngine string, dbName string, parameterGroup *types.DBClusterParameterGroup) *types.DBCluster { log.Println("Checking for an existing DB cluster.") cluster, err := scenario.dbClusters.GetDbCluster(ctx, clusterName) if err != nil { panic(err) } if cluster == nil { adminUsername := scenario.questioner.Ask( "Enter an administrator user name for the database: ", demotools.NotEmpty{}) adminPassword := scenario.questioner.Ask( "Enter a password for the administrator (at least 8 characters): ", demotools.NotEmpty{}) engineVersions, err := scenario.dbClusters.GetEngineVersions(ctx, dbEngine, *parameterGroup.DBParameterGroupFamily) if err != nil { panic(err) } var engineChoices []string for _, engine := range engineVersions { engineChoices = append(engineChoices, *engine.EngineVersion) } log.Println("The available engines for your parameter group are:") engineIndex := scenario.questioner.AskChoice("Which engine do you want to use?\n", engineChoices) log.Printf("Creating DB cluster %v and database %v.\n", clusterName, dbName) log.Printf("The DB cluster is configured to use\nyour custom parameter group %v\n", *parameterGroup.DBClusterParameterGroupName) log.Printf("and selected engine %v.\n", engineChoices[engineIndex]) log.Println("This typically takes several minutes.") cluster, err = scenario.dbClusters.CreateDbCluster( ctx, clusterName, *parameterGroup.DBClusterParameterGroupName, dbName, dbEngine, engineChoices[engineIndex], adminUsername, adminPassword) if err != nil { panic(err) } for *cluster.Status != "available" { scenario.helper.Pause(30) cluster, err = scenario.dbClusters.GetDbCluster(ctx, clusterName) if err != nil { panic(err) } log.Println("Cluster created and available.") } } log.Println("Cluster data:") log.Printf("\tDBClusterIdentifier: %v\n", *cluster.DBClusterIdentifier) log.Printf("\tARN: %v\n", *cluster.DBClusterArn) log.Printf("\tStatus: %v\n", *cluster.Status) log.Printf("\tEngine: %v\n", *cluster.Engine) log.Printf("\tEngine version: %v\n", *cluster.EngineVersion) log.Printf("\tDBClusterParameterGroup: %v\n", *cluster.DBClusterParameterGroup) log.Printf("\tEngineMode: %v\n", *cluster.EngineMode) log.Println(strings.Repeat("-", 88)) return cluster } // CreateInstance shows how to create a DB instance in an existing Aurora DB cluster. // A new DB cluster contains no DB instances, so you must add one. The first DB instance // that is added to a DB cluster defaults to a read-write DB instance. func (scenario GetStartedClusters) CreateInstance(ctx context.Context, cluster *types.DBCluster) *types.DBInstance { log.Println("Checking for an existing database instance.") dbInstance, err := scenario.dbClusters.GetInstance(ctx, *cluster.DBClusterIdentifier) if err != nil { panic(err) } if dbInstance == nil { log.Println("Let's create a database instance in your DB cluster.") log.Println("First, choose a DB instance type:") instOpts, err := scenario.dbClusters.GetOrderableInstances( ctx, *cluster.Engine, *cluster.EngineVersion) if err != nil { panic(err) } var instChoices []string for _, opt := range instOpts { instChoices = append(instChoices, *opt.DBInstanceClass) } slices.Sort(instChoices) instChoices = slices.Compact(instChoices) instIndex := scenario.questioner.AskChoice( "Which DB instance class do you want to use?\n", instChoices) log.Println("Creating a database instance. This typically takes several minutes.") dbInstance, err = scenario.dbClusters.CreateInstanceInCluster( ctx, *cluster.DBClusterIdentifier, *cluster.DBClusterIdentifier, *cluster.Engine, instChoices[instIndex]) if err != nil { panic(err) } for *dbInstance.DBInstanceStatus != "available" { scenario.helper.Pause(30) dbInstance, err = scenario.dbClusters.GetInstance(ctx, *cluster.DBClusterIdentifier) if err != nil { panic(err) } } } log.Println("Instance data:") log.Printf("\tDBInstanceIdentifier: %v\n", *dbInstance.DBInstanceIdentifier) log.Printf("\tARN: %v\n", *dbInstance.DBInstanceArn) log.Printf("\tStatus: %v\n", *dbInstance.DBInstanceStatus) log.Printf("\tEngine: %v\n", *dbInstance.Engine) log.Printf("\tEngine version: %v\n", *dbInstance.EngineVersion) log.Println(strings.Repeat("-", 88)) return dbInstance } // DisplayConnection displays connection information about an Aurora DB cluster and tips // on how to connect to it. func (scenario GetStartedClusters) DisplayConnection(cluster *types.DBCluster) { log.Println( "You can now connect to your database using your favorite MySql client.\n" + "One way to connect is by using the 'mysql' shell on an Amazon EC2 instance\n" + "that is running in the same VPC as your database cluster. Pass the endpoint,\n" + "port, and administrator user name to 'mysql' and enter your password\n" + "when prompted:") log.Printf("\n\tmysql -h %v -P %v -u %v -p\n", *cluster.Endpoint, *cluster.Port, *cluster.MasterUsername) log.Println("For more information, see the User Guide for Aurora:\n" + "\thttps://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/CHAP_GettingStartedAurora.CreatingConnecting.Aurora.html#CHAP_GettingStartedAurora.Aurora.Connect") log.Println(strings.Repeat("-", 88)) } // CreateSnapshot shows how to create a DB cluster snapshot and wait until it's available. func (scenario GetStartedClusters) CreateSnapshot(ctx context.Context, clusterName string) { if scenario.questioner.AskBool( "Do you want to create a snapshot of your DB cluster (y/n)? ", "y") { snapshotId := fmt.Sprintf("%v-%v", clusterName, scenario.helper.UniqueId()) log.Printf("Creating a snapshot named %v. This typically takes a few minutes.\n", snapshotId) snapshot, err := scenario.dbClusters.CreateClusterSnapshot(ctx, clusterName, snapshotId) if err != nil { panic(err) } for *snapshot.Status != "available" { scenario.helper.Pause(30) snapshot, err = scenario.dbClusters.GetClusterSnapshot(ctx, snapshotId) if err != nil { panic(err) } } log.Println("Snapshot data:") log.Printf("\tDBClusterSnapshotIdentifier: %v\n", *snapshot.DBClusterSnapshotIdentifier) log.Printf("\tARN: %v\n", *snapshot.DBClusterSnapshotArn) log.Printf("\tStatus: %v\n", *snapshot.Status) log.Printf("\tEngine: %v\n", *snapshot.Engine) log.Printf("\tEngine version: %v\n", *snapshot.EngineVersion) log.Printf("\tDBClusterIdentifier: %v\n", *snapshot.DBClusterIdentifier) log.Printf("\tSnapshotCreateTime: %v\n", *snapshot.SnapshotCreateTime) log.Println(strings.Repeat("-", 88)) } } // Cleanup shows how to clean up a DB instance, DB cluster, and DB cluster parameter group. // Before the DB cluster parameter group can be deleted, all associated DB instances and // DB clusters must first be deleted. func (scenario GetStartedClusters) Cleanup(ctx context.Context, dbInstance *types.DBInstance, cluster *types.DBCluster, parameterGroup *types.DBClusterParameterGroup) { if scenario.questioner.AskBool( "\nDo you want to delete the database instance, DB cluster, and parameter group (y/n)? ", "y") { log.Printf("Deleting database instance %v.\n", *dbInstance.DBInstanceIdentifier) err := scenario.dbClusters.DeleteInstance(ctx, *dbInstance.DBInstanceIdentifier) if err != nil { panic(err) } log.Printf("Deleting database cluster %v.\n", *cluster.DBClusterIdentifier) err = scenario.dbClusters.DeleteDbCluster(ctx, *cluster.DBClusterIdentifier) if err != nil { panic(err) } log.Println( "Waiting for the DB instance and DB cluster to delete. This typically takes several minutes.") for dbInstance != nil || cluster != nil { scenario.helper.Pause(30) if dbInstance != nil { dbInstance, err = scenario.dbClusters.GetInstance(ctx, *dbInstance.DBInstanceIdentifier) if err != nil { panic(err) } } if cluster != nil { cluster, err = scenario.dbClusters.GetDbCluster(ctx, *cluster.DBClusterIdentifier) if err != nil { panic(err) } } } log.Printf("Deleting parameter group %v.", *parameterGroup.DBClusterParameterGroupName) err = scenario.dbClusters.DeleteParameterGroup(ctx, *parameterGroup.DBClusterParameterGroupName) if err != nil { panic(err) } } } // IScenarioHelper abstracts the function from a scenario so that it // can be mocked for unit testing. type IScenarioHelper interface { Pause(secs int) UniqueId() string } type ScenarioHelper struct{} // Pause waits for the specified number of seconds. func (helper ScenarioHelper) Pause(secs int) { time.Sleep(time.Duration(secs) * time.Second) } // UniqueId returns a new UUID. func (helper ScenarioHelper) UniqueId() string { return uuid.New().String() } ``` Aurora アクションを管理するためにシナリオによって呼び出される関数を定義します。 ``` import ( "context" "errors" "log" "github.com/aws/aws-sdk-go-v2/aws" "github.com/aws/aws-sdk-go-v2/service/rds" "github.com/aws/aws-sdk-go-v2/service/rds/types" ) type DbClusters struct { AuroraClient *rds.Client } // GetParameterGroup gets a DB cluster parameter group by name. func (clusters *DbClusters) GetParameterGroup(ctx context.Context, parameterGroupName string) ( *types.DBClusterParameterGroup, error) { output, err := clusters.AuroraClient.DescribeDBClusterParameterGroups( ctx, &rds.DescribeDBClusterParameterGroupsInput{ DBClusterParameterGroupName: aws.String(parameterGroupName), }) if err != nil { var notFoundError *types.DBParameterGroupNotFoundFault if errors.As(err, ¬FoundError) { log.Printf("Parameter group %v does not exist.\n", parameterGroupName) err = nil } else { log.Printf("Error getting parameter group %v: %v\n", parameterGroupName, err) } return nil, err } else { return &output.DBClusterParameterGroups[0], err } } // CreateParameterGroup creates a DB cluster parameter group that is based on the specified // parameter group family. func (clusters *DbClusters) CreateParameterGroup( ctx context.Context, parameterGroupName string, parameterGroupFamily string, description string) ( *types.DBClusterParameterGroup, error) { output, err := clusters.AuroraClient.CreateDBClusterParameterGroup(ctx, &rds.CreateDBClusterParameterGroupInput{ DBClusterParameterGroupName: aws.String(parameterGroupName), DBParameterGroupFamily: aws.String(parameterGroupFamily), Description: aws.String(description), }) if err != nil { log.Printf("Couldn't create parameter group %v: %v\n", parameterGroupName, err) return nil, err } else { return output.DBClusterParameterGroup, err } } // DeleteParameterGroup deletes the named DB cluster parameter group. func (clusters *DbClusters) DeleteParameterGroup(ctx context.Context, parameterGroupName string) error { _, err := clusters.AuroraClient.DeleteDBClusterParameterGroup(ctx, &rds.DeleteDBClusterParameterGroupInput{ DBClusterParameterGroupName: aws.String(parameterGroupName), }) if err != nil { log.Printf("Couldn't delete parameter group %v: %v\n", parameterGroupName, err) return err } else { return nil } } // GetParameters gets the parameters that are contained in a DB cluster parameter group. func (clusters *DbClusters) GetParameters(ctx context.Context, parameterGroupName string, source string) ( []types.Parameter, error) { var output *rds.DescribeDBClusterParametersOutput var params []types.Parameter var err error parameterPaginator := rds.NewDescribeDBClusterParametersPaginator(clusters.AuroraClient, &rds.DescribeDBClusterParametersInput{ DBClusterParameterGroupName: aws.String(parameterGroupName), Source: aws.String(source), }) for parameterPaginator.HasMorePages() { output, err = parameterPaginator.NextPage(ctx) if err != nil { log.Printf("Couldn't get paramaeters for %v: %v\n", parameterGroupName, err) break } else { params = append(params, output.Parameters...) } } return params, err } // UpdateParameters updates parameters in a named DB cluster parameter group. func (clusters *DbClusters) UpdateParameters(ctx context.Context, parameterGroupName string, params []types.Parameter) error { _, err := clusters.AuroraClient.ModifyDBClusterParameterGroup(ctx, &rds.ModifyDBClusterParameterGroupInput{ DBClusterParameterGroupName: aws.String(parameterGroupName), Parameters: params, }) if err != nil { log.Printf("Couldn't update parameters in %v: %v\n", parameterGroupName, err) return err } else { return nil } } // GetDbCluster gets data about an Aurora DB cluster. func (clusters *DbClusters) GetDbCluster(ctx context.Context, clusterName string) (*types.DBCluster, error) { output, err := clusters.AuroraClient.DescribeDBClusters(ctx, &rds.DescribeDBClustersInput{ DBClusterIdentifier: aws.String(clusterName), }) if err != nil { var notFoundError *types.DBClusterNotFoundFault if errors.As(err, ¬FoundError) { log.Printf("DB cluster %v does not exist.\n", clusterName) err = nil } else { log.Printf("Couldn't get DB cluster %v: %v\n", clusterName, err) } return nil, err } else { return &output.DBClusters[0], err } } // CreateDbCluster creates a DB cluster that is configured to use the specified parameter group. // The newly created DB cluster contains a database that uses the specified engine and // engine version. func (clusters *DbClusters) CreateDbCluster(ctx context.Context, clusterName string, parameterGroupName string, dbName string, dbEngine string, dbEngineVersion string, adminName string, adminPassword string) ( *types.DBCluster, error) { output, err := clusters.AuroraClient.CreateDBCluster(ctx, &rds.CreateDBClusterInput{ DBClusterIdentifier: aws.String(clusterName), Engine: aws.String(dbEngine), DBClusterParameterGroupName: aws.String(parameterGroupName), DatabaseName: aws.String(dbName), EngineVersion: aws.String(dbEngineVersion), MasterUserPassword: aws.String(adminPassword), MasterUsername: aws.String(adminName), }) if err != nil { log.Printf("Couldn't create DB cluster %v: %v\n", clusterName, err) return nil, err } else { return output.DBCluster, err } } // DeleteDbCluster deletes a DB cluster without keeping a final snapshot. func (clusters *DbClusters) DeleteDbCluster(ctx context.Context, clusterName string) error { _, err := clusters.AuroraClient.DeleteDBCluster(ctx, &rds.DeleteDBClusterInput{ DBClusterIdentifier: aws.String(clusterName), SkipFinalSnapshot: aws.Bool(true), }) if err != nil { log.Printf("Couldn't delete DB cluster %v: %v\n", clusterName, err) return err } else { return nil } } // CreateClusterSnapshot creates a snapshot of a DB cluster. func (clusters *DbClusters) CreateClusterSnapshot(ctx context.Context, clusterName string, snapshotName string) ( *types.DBClusterSnapshot, error) { output, err := clusters.AuroraClient.CreateDBClusterSnapshot(ctx, &rds.CreateDBClusterSnapshotInput{ DBClusterIdentifier: aws.String(clusterName), DBClusterSnapshotIdentifier: aws.String(snapshotName), }) if err != nil { log.Printf("Couldn't create snapshot %v: %v\n", snapshotName, err) return nil, err } else { return output.DBClusterSnapshot, nil } } // GetClusterSnapshot gets a DB cluster snapshot. func (clusters *DbClusters) GetClusterSnapshot(ctx context.Context, snapshotName string) (*types.DBClusterSnapshot, error) { output, err := clusters.AuroraClient.DescribeDBClusterSnapshots(ctx, &rds.DescribeDBClusterSnapshotsInput{ DBClusterSnapshotIdentifier: aws.String(snapshotName), }) if err != nil { log.Printf("Couldn't get snapshot %v: %v\n", snapshotName, err) return nil, err } else { return &output.DBClusterSnapshots[0], nil } } // CreateInstanceInCluster creates a database instance in an existing DB cluster. The first database that is // created defaults to a read-write DB instance. func (clusters *DbClusters) CreateInstanceInCluster(ctx context.Context, clusterName string, instanceName string, dbEngine string, dbInstanceClass string) (*types.DBInstance, error) { output, err := clusters.AuroraClient.CreateDBInstance(ctx, &rds.CreateDBInstanceInput{ DBInstanceIdentifier: aws.String(instanceName), DBClusterIdentifier: aws.String(clusterName), Engine: aws.String(dbEngine), DBInstanceClass: aws.String(dbInstanceClass), }) if err != nil { log.Printf("Couldn't create instance %v: %v\n", instanceName, err) return nil, err } else { return output.DBInstance, nil } } // GetInstance gets data about a DB instance. func (clusters *DbClusters) GetInstance(ctx context.Context, instanceName string) ( *types.DBInstance, error) { output, err := clusters.AuroraClient.DescribeDBInstances(ctx, &rds.DescribeDBInstancesInput{ DBInstanceIdentifier: aws.String(instanceName), }) if err != nil { var notFoundError *types.DBInstanceNotFoundFault if errors.As(err, ¬FoundError) { log.Printf("DB instance %v does not exist.\n", instanceName) err = nil } else { log.Printf("Couldn't get instance %v: %v\n", instanceName, err) } return nil, err } else { return &output.DBInstances[0], nil } } // DeleteInstance deletes a DB instance. func (clusters *DbClusters) DeleteInstance(ctx context.Context, instanceName string) error { _, err := clusters.AuroraClient.DeleteDBInstance(ctx, &rds.DeleteDBInstanceInput{ DBInstanceIdentifier: aws.String(instanceName), SkipFinalSnapshot: aws.Bool(true), DeleteAutomatedBackups: aws.Bool(true), }) if err != nil { log.Printf("Couldn't delete instance %v: %v\n", instanceName, err) return err } else { return nil } } // GetEngineVersions gets database engine versions that are available for the specified engine // and parameter group family. func (clusters *DbClusters) GetEngineVersions(ctx context.Context, engine string, parameterGroupFamily string) ( []types.DBEngineVersion, error) { output, err := clusters.AuroraClient.DescribeDBEngineVersions(ctx, &rds.DescribeDBEngineVersionsInput{ Engine: aws.String(engine), DBParameterGroupFamily: aws.String(parameterGroupFamily), }) if err != nil { log.Printf("Couldn't get engine versions for %v: %v\n", engine, err) return nil, err } else { return output.DBEngineVersions, nil } } // GetOrderableInstances uses a paginator to get DB instance options that can be used to create DB instances that are // compatible with a set of specifications. func (clusters *DbClusters) GetOrderableInstances(ctx context.Context, engine string, engineVersion string) ( []types.OrderableDBInstanceOption, error) { var output *rds.DescribeOrderableDBInstanceOptionsOutput var instances []types.OrderableDBInstanceOption var err error orderablePaginator := rds.NewDescribeOrderableDBInstanceOptionsPaginator(clusters.AuroraClient, &rds.DescribeOrderableDBInstanceOptionsInput{ Engine: aws.String(engine), EngineVersion: aws.String(engineVersion), }) for orderablePaginator.HasMorePages() { output, err = orderablePaginator.NextPage(ctx) if err != nil { log.Printf("Couldn't get orderable DB instances: %v\n", err) break } else { instances = append(instances, output.OrderableDBInstanceOptions...) } } return instances, err } ``` + API の詳細については、「AWS SDK for Go API リファレンス**」の以下のトピックを参照してください。 + [CreateDBCluster](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.CreateDBCluster) + [CreateDBClusterParameterGroup](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.CreateDBClusterParameterGroup) + [CreateDBClusterSnapshot](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.CreateDBClusterSnapshot) + [CreateDBInstance](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.CreateDBInstance) + [DeleteDBCluster](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.DeleteDBCluster) + [DeleteDBClusterParameterGroup](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.DeleteDBClusterParameterGroup) + [DeleteDBInstance](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.DeleteDBInstance) + [DescribeDBClusterParameterGroups](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.DescribeDBClusterParameterGroups) + [DescribeDBClusterParameters](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.DescribeDBClusterParameters) + [DescribeDBClusterSnapshots](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.DescribeDBClusterSnapshots) + [DescribeDBClusters](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.DescribeDBClusters) + [DescribeDBEngineVersions](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.DescribeDBEngineVersions) + [DescribeDBInstances](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.DescribeDBInstances) + [DescribeOrderableDBInstanceOptions](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.DescribeOrderableDBInstanceOptions) + [ModifyDBClusterParameterGroup](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.ModifyDBClusterParameterGroup) ------ #### [ Java ] **SDK for Java 2.x** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/rds#code-examples)での設定と実行の方法を確認してください。 ``` /** * Before running this Java (v2) code example, set up your development * environment, including your credentials. * * For more information, see the following documentation topic: * * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html * * This example requires an AWS Secrets Manager secret that contains the * database credentials. If you do not create a * secret, this example will not work. For details, see: * * https://docs.aws.amazon.com/secretsmanager/latest/userguide/integrating_how-services-use-secrets_RS.html * * This Java example performs the following tasks: * * 1. Gets available engine families for Amazon Aurora MySQL-Compatible Edition * by calling the DescribeDbEngineVersions(Engine='aurora-mysql') method. * 2. Selects an engine family and creates a custom DB cluster parameter group * by invoking the describeDBClusterParameters method. * 3. Gets the parameter groups by invoking the describeDBClusterParameterGroups * method. * 4. Gets parameters in the group by invoking the describeDBClusterParameters * method. * 5. Modifies the auto_increment_offset parameter by invoking the * modifyDbClusterParameterGroupRequest method. * 6. Gets and displays the updated parameters. * 7. Gets a list of allowed engine versions by invoking the * describeDbEngineVersions method. * 8. Creates an Aurora DB cluster database cluster that contains a MySQL * database. * 9. Waits for DB instance to be ready. * 10. Gets a list of instance classes available for the selected engine. * 11. Creates a database instance in the cluster. * 12. Waits for DB instance to be ready. * 13. Creates a snapshot. * 14. Waits for DB snapshot to be ready. * 15. Deletes the DB cluster. * 16. Deletes the DB cluster group. */ public class AuroraScenario { public static long sleepTime = 20; public static final String DASHES = new String(new char[80]).replace("\0", "-"); public static void main(String[] args) throws InterruptedException { final String usage = "\n" + "Usage:\n" + " " + "Where:\n" + " dbClusterGroupName - The name of the DB cluster parameter group. \n" + " dbParameterGroupFamily - The DB cluster parameter group family name (for example, aurora-mysql5.7). \n" + " dbInstanceClusterIdentifier - The instance cluster identifier value.\n" + " dbInstanceIdentifier - The database instance identifier.\n" + " dbName - The database name.\n" + " dbSnapshotIdentifier - The snapshot identifier.\n" + " secretName - The name of the AWS Secrets Manager secret that contains the database credentials\"\n"; ; if (args.length != 7) { System.out.println(usage); System.exit(1); } String dbClusterGroupName = args[0]; String dbParameterGroupFamily = args[1]; String dbInstanceClusterIdentifier = args[2]; String dbInstanceIdentifier = args[3]; String dbName = args[4]; String dbSnapshotIdentifier = args[5]; String secretName = args[6]; // Retrieve the database credentials using AWS Secrets Manager. Gson gson = new Gson(); User user = gson.fromJson(String.valueOf(getSecretValues(secretName)), User.class); String username = user.getUsername(); String userPassword = user.getPassword(); Region region = Region.US_WEST_2; RdsClient rdsClient = RdsClient.builder() .region(region) .build(); System.out.println(DASHES); System.out.println("Welcome to the Amazon Aurora example scenario."); System.out.println(DASHES); System.out.println(DASHES); System.out.println("1. Return a list of the available DB engines"); describeDBEngines(rdsClient); System.out.println(DASHES); System.out.println(DASHES); System.out.println("2. Create a custom parameter group"); createDBClusterParameterGroup(rdsClient, dbClusterGroupName, dbParameterGroupFamily); System.out.println(DASHES); System.out.println(DASHES); System.out.println("3. Get the parameter group"); describeDbClusterParameterGroups(rdsClient, dbClusterGroupName); System.out.println(DASHES); System.out.println(DASHES); System.out.println("4. Get the parameters in the group"); describeDbClusterParameters(rdsClient, dbClusterGroupName, 0); System.out.println(DASHES); System.out.println(DASHES); System.out.println("5. Modify the auto_increment_offset parameter"); modifyDBClusterParas(rdsClient, dbClusterGroupName); System.out.println(DASHES); System.out.println(DASHES); System.out.println("6. Display the updated parameter value"); describeDbClusterParameters(rdsClient, dbClusterGroupName, -1); System.out.println(DASHES); System.out.println(DASHES); System.out.println("7. Get a list of allowed engine versions"); getAllowedEngines(rdsClient, dbParameterGroupFamily); System.out.println(DASHES); System.out.println(DASHES); System.out.println("8. Create an Aurora DB cluster database"); String arnClusterVal = createDBCluster(rdsClient, dbClusterGroupName, dbName, dbInstanceClusterIdentifier, username, userPassword); System.out.println("The ARN of the cluster is " + arnClusterVal); System.out.println(DASHES); System.out.println(DASHES); System.out.println("9. Wait for DB instance to be ready"); waitForInstanceReady(rdsClient, dbInstanceClusterIdentifier); System.out.println(DASHES); System.out.println(DASHES); System.out.println("10. Get a list of instance classes available for the selected engine"); String instanceClass = getListInstanceClasses(rdsClient); System.out.println(DASHES); System.out.println(DASHES); System.out.println("11. Create a database instance in the cluster."); String clusterDBARN = createDBInstanceCluster(rdsClient, dbInstanceIdentifier, dbInstanceClusterIdentifier, instanceClass); System.out.println("The ARN of the database is " + clusterDBARN); System.out.println(DASHES); System.out.println(DASHES); System.out.println("12. Wait for DB instance to be ready"); waitDBInstanceReady(rdsClient, dbInstanceIdentifier); System.out.println(DASHES); System.out.println(DASHES); System.out.println("13. Create a snapshot"); createDBClusterSnapshot(rdsClient, dbInstanceClusterIdentifier, dbSnapshotIdentifier); System.out.println(DASHES); System.out.println(DASHES); System.out.println("14. Wait for DB snapshot to be ready"); waitForSnapshotReady(rdsClient, dbSnapshotIdentifier, dbInstanceClusterIdentifier); System.out.println(DASHES); System.out.println(DASHES); System.out.println("14. Delete the DB instance"); deleteDatabaseInstance(rdsClient, dbInstanceIdentifier); System.out.println(DASHES); System.out.println(DASHES); System.out.println("15. Delete the DB cluster"); deleteCluster(rdsClient, dbInstanceClusterIdentifier); System.out.println(DASHES); System.out.println(DASHES); System.out.println("16. Delete the DB cluster group"); deleteDBClusterGroup(rdsClient, dbClusterGroupName, clusterDBARN); System.out.println(DASHES); System.out.println(DASHES); System.out.println("The Scenario has successfully completed."); System.out.println(DASHES); rdsClient.close(); } private static SecretsManagerClient getSecretClient() { Region region = Region.US_WEST_2; return SecretsManagerClient.builder() .region(region) .credentialsProvider(EnvironmentVariableCredentialsProvider.create()) .build(); } private static String getSecretValues(String secretName) { SecretsManagerClient secretClient = getSecretClient(); GetSecretValueRequest valueRequest = GetSecretValueRequest.builder() .secretId(secretName) .build(); GetSecretValueResponse valueResponse = secretClient.getSecretValue(valueRequest); return valueResponse.secretString(); } public static void deleteDBClusterGroup(RdsClient rdsClient, String dbClusterGroupName, String clusterDBARN) throws InterruptedException { try { boolean isDataDel = false; boolean didFind; String instanceARN; // Make sure that the database has been deleted. while (!isDataDel) { DescribeDbInstancesResponse response = rdsClient.describeDBInstances(); List instanceList = response.dbInstances(); int listSize = instanceList.size(); didFind = false; int index = 1; for (DBInstance instance : instanceList) { instanceARN = instance.dbInstanceArn(); if (instanceARN.compareTo(clusterDBARN) == 0) { System.out.println(clusterDBARN + " still exists"); didFind = true; } if ((index == listSize) && (!didFind)) { // Went through the entire list and did not find the database ARN. isDataDel = true; } Thread.sleep(sleepTime * 1000); index++; } } DeleteDbClusterParameterGroupRequest clusterParameterGroupRequest = DeleteDbClusterParameterGroupRequest .builder() .dbClusterParameterGroupName(dbClusterGroupName) .build(); rdsClient.deleteDBClusterParameterGroup(clusterParameterGroupRequest); System.out.println(dbClusterGroupName + " was deleted."); } catch (RdsException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } } public static void deleteCluster(RdsClient rdsClient, String dbInstanceClusterIdentifier) { try { DeleteDbClusterRequest deleteDbClusterRequest = DeleteDbClusterRequest.builder() .dbClusterIdentifier(dbInstanceClusterIdentifier) .skipFinalSnapshot(true) .build(); rdsClient.deleteDBCluster(deleteDbClusterRequest); System.out.println(dbInstanceClusterIdentifier + " was deleted!"); } catch (RdsException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } } public static void deleteDatabaseInstance(RdsClient rdsClient, String dbInstanceIdentifier) { try { DeleteDbInstanceRequest deleteDbInstanceRequest = DeleteDbInstanceRequest.builder() .dbInstanceIdentifier(dbInstanceIdentifier) .deleteAutomatedBackups(true) .skipFinalSnapshot(true) .build(); DeleteDbInstanceResponse response = rdsClient.deleteDBInstance(deleteDbInstanceRequest); System.out.println("The status of the database is " + response.dbInstance().dbInstanceStatus()); } catch (RdsException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } } public static void waitForSnapshotReady(RdsClient rdsClient, String dbSnapshotIdentifier, String dbInstanceClusterIdentifier) { try { boolean snapshotReady = false; String snapshotReadyStr; System.out.println("Waiting for the snapshot to become available."); DescribeDbClusterSnapshotsRequest snapshotsRequest = DescribeDbClusterSnapshotsRequest.builder() .dbClusterSnapshotIdentifier(dbSnapshotIdentifier) .dbClusterIdentifier(dbInstanceClusterIdentifier) .build(); while (!snapshotReady) { DescribeDbClusterSnapshotsResponse response = rdsClient.describeDBClusterSnapshots(snapshotsRequest); List snapshotList = response.dbClusterSnapshots(); for (DBClusterSnapshot snapshot : snapshotList) { snapshotReadyStr = snapshot.status(); if (snapshotReadyStr.contains("available")) { snapshotReady = true; } else { System.out.println("."); Thread.sleep(sleepTime * 5000); } } } System.out.println("The Snapshot is available!"); } catch (RdsException | InterruptedException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } } public static void createDBClusterSnapshot(RdsClient rdsClient, String dbInstanceClusterIdentifier, String dbSnapshotIdentifier) { try { CreateDbClusterSnapshotRequest snapshotRequest = CreateDbClusterSnapshotRequest.builder() .dbClusterIdentifier(dbInstanceClusterIdentifier) .dbClusterSnapshotIdentifier(dbSnapshotIdentifier) .build(); CreateDbClusterSnapshotResponse response = rdsClient.createDBClusterSnapshot(snapshotRequest); System.out.println("The Snapshot ARN is " + response.dbClusterSnapshot().dbClusterSnapshotArn()); } catch (RdsException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } } public static void waitDBInstanceReady(RdsClient rdsClient, String dbInstanceIdentifier) { boolean instanceReady = false; String instanceReadyStr; System.out.println("Waiting for instance to become available."); try { DescribeDbInstancesRequest instanceRequest = DescribeDbInstancesRequest.builder() .dbInstanceIdentifier(dbInstanceIdentifier) .build(); String endpoint = ""; while (!instanceReady) { DescribeDbInstancesResponse response = rdsClient.describeDBInstances(instanceRequest); List instanceList = response.dbInstances(); for (DBInstance instance : instanceList) { instanceReadyStr = instance.dbInstanceStatus(); if (instanceReadyStr.contains("available")) { endpoint = instance.endpoint().address(); instanceReady = true; } else { System.out.print("."); Thread.sleep(sleepTime * 1000); } } } System.out.println("Database instance is available! The connection endpoint is " + endpoint); } catch (RdsException | InterruptedException e) { System.err.println(e.getMessage()); System.exit(1); } } public static String createDBInstanceCluster(RdsClient rdsClient, String dbInstanceIdentifier, String dbInstanceClusterIdentifier, String instanceClass) { try { CreateDbInstanceRequest instanceRequest = CreateDbInstanceRequest.builder() .dbInstanceIdentifier(dbInstanceIdentifier) .dbClusterIdentifier(dbInstanceClusterIdentifier) .engine("aurora-mysql") .dbInstanceClass(instanceClass) .build(); CreateDbInstanceResponse response = rdsClient.createDBInstance(instanceRequest); System.out.print("The status is " + response.dbInstance().dbInstanceStatus()); return response.dbInstance().dbInstanceArn(); } catch (RdsException e) { System.err.println(e.getMessage()); System.exit(1); } return ""; } public static String getListInstanceClasses(RdsClient rdsClient) { try { DescribeOrderableDbInstanceOptionsRequest optionsRequest = DescribeOrderableDbInstanceOptionsRequest .builder() .engine("aurora-mysql") .maxRecords(20) .build(); DescribeOrderableDbInstanceOptionsResponse response = rdsClient .describeOrderableDBInstanceOptions(optionsRequest); List instanceOptions = response.orderableDBInstanceOptions(); String instanceClass = ""; for (OrderableDBInstanceOption instanceOption : instanceOptions) { instanceClass = instanceOption.dbInstanceClass(); System.out.println("The instance class is " + instanceOption.dbInstanceClass()); System.out.println("The engine version is " + instanceOption.engineVersion()); } return instanceClass; } catch (RdsException e) { System.err.println(e.getMessage()); System.exit(1); } return ""; } // Waits until the database instance is available. public static void waitForInstanceReady(RdsClient rdsClient, String dbClusterIdentifier) { boolean instanceReady = false; String instanceReadyStr; System.out.println("Waiting for instance to become available."); try { DescribeDbClustersRequest instanceRequest = DescribeDbClustersRequest.builder() .dbClusterIdentifier(dbClusterIdentifier) .build(); while (!instanceReady) { DescribeDbClustersResponse response = rdsClient.describeDBClusters(instanceRequest); List clusterList = response.dbClusters(); for (DBCluster cluster : clusterList) { instanceReadyStr = cluster.status(); if (instanceReadyStr.contains("available")) { instanceReady = true; } else { System.out.print("."); Thread.sleep(sleepTime * 1000); } } } System.out.println("Database cluster is available!"); } catch (RdsException | InterruptedException e) { System.err.println(e.getMessage()); System.exit(1); } } public static String createDBCluster(RdsClient rdsClient, String dbParameterGroupFamily, String dbName, String dbClusterIdentifier, String userName, String password) { try { CreateDbClusterRequest clusterRequest = CreateDbClusterRequest.builder() .databaseName(dbName) .dbClusterIdentifier(dbClusterIdentifier) .dbClusterParameterGroupName(dbParameterGroupFamily) .engine("aurora-mysql") .masterUsername(userName) .masterUserPassword(password) .build(); CreateDbClusterResponse response = rdsClient.createDBCluster(clusterRequest); return response.dbCluster().dbClusterArn(); } catch (RdsException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } return ""; } // Get a list of allowed engine versions. public static void getAllowedEngines(RdsClient rdsClient, String dbParameterGroupFamily) { try { DescribeDbEngineVersionsRequest versionsRequest = DescribeDbEngineVersionsRequest.builder() .dbParameterGroupFamily(dbParameterGroupFamily) .engine("aurora-mysql") .build(); DescribeDbEngineVersionsResponse response = rdsClient.describeDBEngineVersions(versionsRequest); List dbEngines = response.dbEngineVersions(); for (DBEngineVersion dbEngine : dbEngines) { System.out.println("The engine version is " + dbEngine.engineVersion()); System.out.println("The engine description is " + dbEngine.dbEngineDescription()); } } catch (RdsException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } } // Modify the auto_increment_offset parameter. public static void modifyDBClusterParas(RdsClient rdsClient, String dClusterGroupName) { try { Parameter parameter1 = Parameter.builder() .parameterName("auto_increment_offset") .applyMethod("immediate") .parameterValue("5") .build(); List paraList = new ArrayList<>(); paraList.add(parameter1); ModifyDbClusterParameterGroupRequest groupRequest = ModifyDbClusterParameterGroupRequest.builder() .dbClusterParameterGroupName(dClusterGroupName) .parameters(paraList) .build(); ModifyDbClusterParameterGroupResponse response = rdsClient.modifyDBClusterParameterGroup(groupRequest); System.out.println( "The parameter group " + response.dbClusterParameterGroupName() + " was successfully modified"); } catch (RdsException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } } public static void describeDbClusterParameters(RdsClient rdsClient, String dbCLusterGroupName, int flag) { try { DescribeDbClusterParametersRequest dbParameterGroupsRequest; if (flag == 0) { dbParameterGroupsRequest = DescribeDbClusterParametersRequest.builder() .dbClusterParameterGroupName(dbCLusterGroupName) .build(); } else { dbParameterGroupsRequest = DescribeDbClusterParametersRequest.builder() .dbClusterParameterGroupName(dbCLusterGroupName) .source("user") .build(); } DescribeDbClusterParametersResponse response = rdsClient .describeDBClusterParameters(dbParameterGroupsRequest); List dbParameters = response.parameters(); String paraName; for (Parameter para : dbParameters) { // Only print out information about either auto_increment_offset or // auto_increment_increment. paraName = para.parameterName(); if ((paraName.compareTo("auto_increment_offset") == 0) || (paraName.compareTo("auto_increment_increment ") == 0)) { System.out.println("*** The parameter name is " + paraName); System.out.println("*** The parameter value is " + para.parameterValue()); System.out.println("*** The parameter data type is " + para.dataType()); System.out.println("*** The parameter description is " + para.description()); System.out.println("*** The parameter allowed values is " + para.allowedValues()); } } } catch (RdsException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } } public static void describeDbClusterParameterGroups(RdsClient rdsClient, String dbClusterGroupName) { try { DescribeDbClusterParameterGroupsRequest groupsRequest = DescribeDbClusterParameterGroupsRequest.builder() .dbClusterParameterGroupName(dbClusterGroupName) .maxRecords(20) .build(); List groups = rdsClient.describeDBClusterParameterGroups(groupsRequest) .dbClusterParameterGroups(); for (DBClusterParameterGroup group : groups) { System.out.println("The group name is " + group.dbClusterParameterGroupName()); System.out.println("The group ARN is " + group.dbClusterParameterGroupArn()); } } catch (RdsException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } } public static void createDBClusterParameterGroup(RdsClient rdsClient, String dbClusterGroupName, String dbParameterGroupFamily) { try { CreateDbClusterParameterGroupRequest groupRequest = CreateDbClusterParameterGroupRequest.builder() .dbClusterParameterGroupName(dbClusterGroupName) .dbParameterGroupFamily(dbParameterGroupFamily) .description("Created by using the AWS SDK for Java") .build(); CreateDbClusterParameterGroupResponse response = rdsClient.createDBClusterParameterGroup(groupRequest); System.out.println("The group name is " + response.dbClusterParameterGroup().dbClusterParameterGroupName()); } catch (RdsException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } } public static void describeDBEngines(RdsClient rdsClient) { try { DescribeDbEngineVersionsRequest engineVersionsRequest = DescribeDbEngineVersionsRequest.builder() .engine("aurora-mysql") .defaultOnly(true) .maxRecords(20) .build(); DescribeDbEngineVersionsResponse response = rdsClient.describeDBEngineVersions(engineVersionsRequest); List engines = response.dbEngineVersions(); // Get all DBEngineVersion objects. for (DBEngineVersion engineOb : engines) { System.out.println("The name of the DB parameter group family for the database engine is " + engineOb.dbParameterGroupFamily()); System.out.println("The name of the database engine " + engineOb.engine()); System.out.println("The version number of the database engine " + engineOb.engineVersion()); } } catch (RdsException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } } } ``` + API の詳細については、「AWS SDK for Java 2.x API リファレンス**」の以下のトピックを参照してください。 + [CreateDBCluster](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/CreateDBCluster) + [CreateDBClusterParameterGroup](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/CreateDBClusterParameterGroup) + [CreateDBClusterSnapshot](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/CreateDBClusterSnapshot) + [CreateDBInstance](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/CreateDBInstance) + [DeleteDBCluster](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/DeleteDBCluster) + [DeleteDBClusterParameterGroup](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/DeleteDBClusterParameterGroup) + [DeleteDBInstance](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/DeleteDBInstance) + [DescribeDBClusterParameterGroups](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/DescribeDBClusterParameterGroups) + [DescribeDBClusterParameters](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/DescribeDBClusterParameters) + [DescribeDBClusterSnapshots](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/DescribeDBClusterSnapshots) + [DescribeDBClusters](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/DescribeDBClusters) + [DescribeDBEngineVersions](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/DescribeDBEngineVersions) + [DescribeDBInstances](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/DescribeDBInstances) + [DescribeOrderableDBInstanceOptions](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/DescribeOrderableDBInstanceOptions) + [ModifyDBClusterParameterGroup](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/ModifyDBClusterParameterGroup) ------ #### [ Kotlin ] **SDK for Kotlin** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/rds#code-examples)での設定と実行の方法を確認してください。 ``` /** Before running this Kotlin code example, set up your development environment, including your credentials. For more information, see the following documentation topic: https://docs.aws.amazon.com/sdk-for-kotlin/latest/developer-guide/setup.html This example requires an AWS Secrets Manager secret that contains the database credentials. If you do not create a secret, this example will not work. For more details, see: https://docs.aws.amazon.com/secretsmanager/latest/userguide/integrating_how-services-use-secrets_RS.html This Kotlin example performs the following tasks: 1. Returns a list of the available DB engines. 2. Creates a custom DB parameter group. 3. Gets the parameter groups. 4. Gets the parameters in the group. 5. Modifies the auto_increment_increment parameter. 6. Displays the updated parameter value. 7. Gets a list of allowed engine versions. 8. Creates an Aurora DB cluster database. 9. Waits for DB instance to be ready. 10. Gets a list of instance classes available for the selected engine. 11. Creates a database instance in the cluster. 12. Waits for the database instance in the cluster to be ready. 13. Creates a snapshot. 14. Waits for DB snapshot to be ready. 15. Deletes the DB instance. 16. Deletes the DB cluster. 17. Deletes the DB cluster group. */ var slTime: Long = 20 suspend fun main(args: Array) { val usage = """ Usage: Where: dbClusterGroupName - The database group name. dbParameterGroupFamily - The database parameter group name. dbInstanceClusterIdentifier - The database instance identifier. dbName - The database name. dbSnapshotIdentifier - The snapshot identifier. secretName - The name of the AWS Secrets Manager secret that contains the database credentials. """ if (args.size != 7) { println(usage) exitProcess(1) } val dbClusterGroupName = args[0] val dbParameterGroupFamily = args[1] val dbInstanceClusterIdentifier = args[2] val dbInstanceIdentifier = args[3] val dbName = args[4] val dbSnapshotIdentifier = args[5] val secretName = args[6] val gson = Gson() val user = gson.fromJson(getSecretValues(secretName).toString(), User::class.java) val username = user.username val userPassword = user.password println("1. Return a list of the available DB engines") describeAuroraDBEngines() println("2. Create a custom parameter group") createDBClusterParameterGroup(dbClusterGroupName, dbParameterGroupFamily) println("3. Get the parameter group") describeDbClusterParameterGroups(dbClusterGroupName) println("4. Get the parameters in the group") describeDbClusterParameters(dbClusterGroupName, 0) println("5. Modify the auto_increment_offset parameter") modifyDBClusterParas(dbClusterGroupName) println("6. Display the updated parameter value") describeDbClusterParameters(dbClusterGroupName, -1) println("7. Get a list of allowed engine versions") getAllowedClusterEngines(dbParameterGroupFamily) println("8. Create an Aurora DB cluster database") val arnClusterVal = createDBCluster(dbClusterGroupName, dbName, dbInstanceClusterIdentifier, username, userPassword) println("The ARN of the cluster is $arnClusterVal") println("9. Wait for DB instance to be ready") waitForClusterInstanceReady(dbInstanceClusterIdentifier) println("10. Get a list of instance classes available for the selected engine") val instanceClass = getListInstanceClasses() println("11. Create a database instance in the cluster.") val clusterDBARN = createDBInstanceCluster(dbInstanceIdentifier, dbInstanceClusterIdentifier, instanceClass) println("The ARN of the database is $clusterDBARN") println("12. Wait for DB instance to be ready") waitDBAuroraInstanceReady(dbInstanceIdentifier) println("13. Create a snapshot") createDBClusterSnapshot(dbInstanceClusterIdentifier, dbSnapshotIdentifier) println("14. Wait for DB snapshot to be ready") waitSnapshotReady(dbSnapshotIdentifier, dbInstanceClusterIdentifier) println("15. Delete the DB instance") deleteDBInstance(dbInstanceIdentifier) println("16. Delete the DB cluster") deleteCluster(dbInstanceClusterIdentifier) println("17. Delete the DB cluster group") if (clusterDBARN != null) { deleteDBClusterGroup(dbClusterGroupName, clusterDBARN) } println("The Scenario has successfully completed.") } @Throws(InterruptedException::class) suspend fun deleteDBClusterGroup( dbClusterGroupName: String, clusterDBARN: String, ) { var isDataDel = false var didFind: Boolean var instanceARN: String RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> // Make sure that the database has been deleted. while (!isDataDel) { val response = rdsClient.describeDbInstances() val instanceList = response.dbInstances val listSize = instanceList?.size isDataDel = false didFind = false var index = 1 if (instanceList != null) { for (instance in instanceList) { instanceARN = instance.dbInstanceArn.toString() if (instanceARN.compareTo(clusterDBARN) == 0) { println("$clusterDBARN still exists") didFind = true } if (index == listSize && !didFind) { // Went through the entire list and did not find the database ARN. isDataDel = true } delay(slTime * 1000) index++ } } } val clusterParameterGroupRequest = DeleteDbClusterParameterGroupRequest { dbClusterParameterGroupName = dbClusterGroupName } rdsClient.deleteDbClusterParameterGroup(clusterParameterGroupRequest) println("$dbClusterGroupName was deleted.") } } suspend fun deleteCluster(dbInstanceClusterIdentifier: String) { val deleteDbClusterRequest = DeleteDbClusterRequest { dbClusterIdentifier = dbInstanceClusterIdentifier skipFinalSnapshot = true } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> rdsClient.deleteDbCluster(deleteDbClusterRequest) println("$dbInstanceClusterIdentifier was deleted!") } } suspend fun deleteDBInstance(dbInstanceIdentifierVal: String) { val deleteDbInstanceRequest = DeleteDbInstanceRequest { dbInstanceIdentifier = dbInstanceIdentifierVal deleteAutomatedBackups = true skipFinalSnapshot = true } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> val response = rdsClient.deleteDbInstance(deleteDbInstanceRequest) print("The status of the database is ${response.dbInstance?.dbInstanceStatus}") } } suspend fun waitSnapshotReady( dbSnapshotIdentifier: String?, dbInstanceClusterIdentifier: String?, ) { var snapshotReady = false var snapshotReadyStr: String println("Waiting for the snapshot to become available.") val snapshotsRequest = DescribeDbClusterSnapshotsRequest { dbClusterSnapshotIdentifier = dbSnapshotIdentifier dbClusterIdentifier = dbInstanceClusterIdentifier } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> while (!snapshotReady) { val response = rdsClient.describeDbClusterSnapshots(snapshotsRequest) val snapshotList = response.dbClusterSnapshots if (snapshotList != null) { for (snapshot in snapshotList) { snapshotReadyStr = snapshot.status.toString() if (snapshotReadyStr.contains("available")) { snapshotReady = true } else { println(".") delay(slTime * 5000) } } } } } println("The Snapshot is available!") } suspend fun createDBClusterSnapshot( dbInstanceClusterIdentifier: String?, dbSnapshotIdentifier: String?, ) { val snapshotRequest = CreateDbClusterSnapshotRequest { dbClusterIdentifier = dbInstanceClusterIdentifier dbClusterSnapshotIdentifier = dbSnapshotIdentifier } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> val response = rdsClient.createDbClusterSnapshot(snapshotRequest) println("The Snapshot ARN is ${response.dbClusterSnapshot?.dbClusterSnapshotArn}") } } suspend fun waitDBAuroraInstanceReady(dbInstanceIdentifierVal: String?) { var instanceReady = false var instanceReadyStr: String println("Waiting for instance to become available.") val instanceRequest = DescribeDbInstancesRequest { dbInstanceIdentifier = dbInstanceIdentifierVal } var endpoint = "" RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> while (!instanceReady) { val response = rdsClient.describeDbInstances(instanceRequest) response.dbInstances?.forEach { instance -> instanceReadyStr = instance.dbInstanceStatus.toString() if (instanceReadyStr.contains("available")) { endpoint = instance.endpoint?.address.toString() instanceReady = true } else { print(".") delay(sleepTime * 1000) } } } } println("Database instance is available! The connection endpoint is $endpoint") } suspend fun createDBInstanceCluster( dbInstanceIdentifierVal: String?, dbInstanceClusterIdentifierVal: String?, instanceClassVal: String?, ): String? { val instanceRequest = CreateDbInstanceRequest { dbInstanceIdentifier = dbInstanceIdentifierVal dbClusterIdentifier = dbInstanceClusterIdentifierVal engine = "aurora-mysql" dbInstanceClass = instanceClassVal } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> val response = rdsClient.createDbInstance(instanceRequest) print("The status is ${response.dbInstance?.dbInstanceStatus}") return response.dbInstance?.dbInstanceArn } } suspend fun getListInstanceClasses(): String { val optionsRequest = DescribeOrderableDbInstanceOptionsRequest { engine = "aurora-mysql" maxRecords = 20 } var instanceClass = "" RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> val response = rdsClient.describeOrderableDbInstanceOptions(optionsRequest) response.orderableDbInstanceOptions?.forEach { instanceOption -> instanceClass = instanceOption.dbInstanceClass.toString() println("The instance class is ${instanceOption.dbInstanceClass}") println("The engine version is ${instanceOption.engineVersion}") } } return instanceClass } // Waits until the database instance is available. suspend fun waitForClusterInstanceReady(dbClusterIdentifierVal: String?) { var instanceReady = false var instanceReadyStr: String println("Waiting for instance to become available.") val instanceRequest = DescribeDbClustersRequest { dbClusterIdentifier = dbClusterIdentifierVal } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> while (!instanceReady) { val response = rdsClient.describeDbClusters(instanceRequest) response.dbClusters?.forEach { cluster -> instanceReadyStr = cluster.status.toString() if (instanceReadyStr.contains("available")) { instanceReady = true } else { print(".") delay(sleepTime * 1000) } } } } println("Database cluster is available!") } suspend fun createDBCluster( dbParameterGroupFamilyVal: String?, dbName: String?, dbClusterIdentifierVal: String?, userName: String?, password: String?, ): String? { val clusterRequest = CreateDbClusterRequest { databaseName = dbName dbClusterIdentifier = dbClusterIdentifierVal dbClusterParameterGroupName = dbParameterGroupFamilyVal engine = "aurora-mysql" masterUsername = userName masterUserPassword = password } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> val response = rdsClient.createDbCluster(clusterRequest) return response.dbCluster?.dbClusterArn } } // Get a list of allowed engine versions. suspend fun getAllowedClusterEngines(dbParameterGroupFamilyVal: String?) { val versionsRequest = DescribeDbEngineVersionsRequest { dbParameterGroupFamily = dbParameterGroupFamilyVal engine = "aurora-mysql" } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> val response = rdsClient.describeDbEngineVersions(versionsRequest) response.dbEngineVersions?.forEach { dbEngine -> println("The engine version is ${dbEngine.engineVersion}") println("The engine description is ${dbEngine.dbEngineDescription}") } } } // Modify the auto_increment_offset parameter. suspend fun modifyDBClusterParas(dClusterGroupName: String?) { val parameter1 = Parameter { parameterName = "auto_increment_offset" applyMethod = ApplyMethod.fromValue("immediate") parameterValue = "5" } val paraList = ArrayList() paraList.add(parameter1) val groupRequest = ModifyDbClusterParameterGroupRequest { dbClusterParameterGroupName = dClusterGroupName parameters = paraList } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> val response = rdsClient.modifyDbClusterParameterGroup(groupRequest) println("The parameter group ${response.dbClusterParameterGroupName} was successfully modified") } } suspend fun describeDbClusterParameters( dbCLusterGroupName: String?, flag: Int, ) { val dbParameterGroupsRequest: DescribeDbClusterParametersRequest dbParameterGroupsRequest = if (flag == 0) { DescribeDbClusterParametersRequest { dbClusterParameterGroupName = dbCLusterGroupName } } else { DescribeDbClusterParametersRequest { dbClusterParameterGroupName = dbCLusterGroupName source = "user" } } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> val response = rdsClient.describeDbClusterParameters(dbParameterGroupsRequest) response.parameters?.forEach { para -> // Only print out information about either auto_increment_offset or auto_increment_increment. val paraName = para.parameterName if (paraName != null) { if (paraName.compareTo("auto_increment_offset") == 0 || paraName.compareTo("auto_increment_increment ") == 0) { println("*** The parameter name is $paraName") println("*** The parameter value is ${para.parameterValue}") println("*** The parameter data type is ${para.dataType}") println("*** The parameter description is ${para.description}") println("*** The parameter allowed values is ${para.allowedValues}") } } } } } suspend fun describeDbClusterParameterGroups(dbClusterGroupName: String?) { val groupsRequest = DescribeDbClusterParameterGroupsRequest { dbClusterParameterGroupName = dbClusterGroupName maxRecords = 20 } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> val response = rdsClient.describeDbClusterParameterGroups(groupsRequest) response.dbClusterParameterGroups?.forEach { group -> println("The group name is ${group.dbClusterParameterGroupName}") println("The group ARN is ${group.dbClusterParameterGroupArn}") } } } suspend fun createDBClusterParameterGroup( dbClusterGroupNameVal: String?, dbParameterGroupFamilyVal: String?, ) { val groupRequest = CreateDbClusterParameterGroupRequest { dbClusterParameterGroupName = dbClusterGroupNameVal dbParameterGroupFamily = dbParameterGroupFamilyVal description = "Created by using the AWS SDK for Kotlin" } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> val response = rdsClient.createDbClusterParameterGroup(groupRequest) println("The group name is ${response.dbClusterParameterGroup?.dbClusterParameterGroupName}") } } suspend fun describeAuroraDBEngines() { val engineVersionsRequest = DescribeDbEngineVersionsRequest { engine = "aurora-mysql" defaultOnly = true maxRecords = 20 } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> val response = rdsClient.describeDbEngineVersions(engineVersionsRequest) response.dbEngineVersions?.forEach { engineOb -> println("The name of the DB parameter group family for the database engine is ${engineOb.dbParameterGroupFamily}") println("The name of the database engine ${engineOb.engine}") println("The version number of the database engine ${engineOb.engineVersion}") } } } ``` + API の詳細については、「*AWS SDK for Kotlin API リファレンス*」の以下のトピックを参照してください。 + [CreateDBCluster](https://sdk.amazonaws.com/kotlin/api/latest/index.html) + [CreateDBClusterParameterGroup](https://sdk.amazonaws.com/kotlin/api/latest/index.html) + [CreateDBClusterSnapshot](https://sdk.amazonaws.com/kotlin/api/latest/index.html) + [CreateDBInstance](https://sdk.amazonaws.com/kotlin/api/latest/index.html) + [DeleteDBCluster](https://sdk.amazonaws.com/kotlin/api/latest/index.html) + [DeleteDBClusterParameterGroup](https://sdk.amazonaws.com/kotlin/api/latest/index.html) + [DeleteDBInstance](https://sdk.amazonaws.com/kotlin/api/latest/index.html) + [DescribeDBClusterParameterGroups](https://sdk.amazonaws.com/kotlin/api/latest/index.html) + [DescribeDBClusterParameters](https://sdk.amazonaws.com/kotlin/api/latest/index.html) + [DescribeDBClusterSnapshots](https://sdk.amazonaws.com/kotlin/api/latest/index.html) + [DescribeDBClusters](https://sdk.amazonaws.com/kotlin/api/latest/index.html) + [DescribeDBEngineVersions](https://sdk.amazonaws.com/kotlin/api/latest/index.html) + [DescribeDBInstances](https://sdk.amazonaws.com/kotlin/api/latest/index.html) + [DescribeOrderableDBInstanceOptions](https://sdk.amazonaws.com/kotlin/api/latest/index.html) + [ModifyDBClusterParameterGroup](https://sdk.amazonaws.com/kotlin/api/latest/index.html) ------ #### [ Python ] **SDK for Python (Boto3)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/aurora#code-examples)での設定と実行の方法を確認してください。コマンドプロンプトからインタラクティブなシナリオを実行します。 ``` class AuroraClusterScenario: """Runs a scenario that shows how to get started using Aurora DB clusters.""" def __init__(self, aurora_wrapper): """ :param aurora_wrapper: An object that wraps Aurora DB cluster actions. """ self.aurora_wrapper = aurora_wrapper def create_parameter_group(self, db_engine, parameter_group_name): """ Shows how to get available engine versions for a specified database engine and create a DB cluster parameter group that is compatible with a selected engine family. :param db_engine: The database engine to use as a basis. :param parameter_group_name: The name given to the newly created parameter group. :return: The newly created parameter group. """ print( f"Checking for an existing DB cluster parameter group named {parameter_group_name}." ) parameter_group = self.aurora_wrapper.get_parameter_group(parameter_group_name) if parameter_group is None: print(f"Getting available database engine versions for {db_engine}.") engine_versions = self.aurora_wrapper.get_engine_versions(db_engine) families = list({ver["DBParameterGroupFamily"] for ver in engine_versions}) family_index = q.choose("Which family do you want to use? ", families) print(f"Creating a DB cluster parameter group.") self.aurora_wrapper.create_parameter_group( parameter_group_name, families[family_index], "Example parameter group." ) parameter_group = self.aurora_wrapper.get_parameter_group( parameter_group_name ) print(f"Parameter group {parameter_group['DBClusterParameterGroupName']}:") pp(parameter_group) print("-" * 88) return parameter_group def set_user_parameters(self, parameter_group_name): """ Shows how to get the parameters contained in a custom parameter group and update some of the parameter values in the group. :param parameter_group_name: The name of the parameter group to query and modify. """ print("Let's set some parameter values in your parameter group.") auto_inc_parameters = self.aurora_wrapper.get_parameters( parameter_group_name, name_prefix="auto_increment" ) update_params = [] for auto_inc in auto_inc_parameters: if auto_inc["IsModifiable"] and auto_inc["DataType"] == "integer": print(f"The {auto_inc['ParameterName']} parameter is described as:") print(f"\t{auto_inc['Description']}") param_range = auto_inc["AllowedValues"].split("-") auto_inc["ParameterValue"] = str( q.ask( f"Enter a value between {param_range[0]} and {param_range[1]}: ", q.is_int, q.in_range(int(param_range[0]), int(param_range[1])), ) ) update_params.append(auto_inc) self.aurora_wrapper.update_parameters(parameter_group_name, update_params) print( "You can get a list of parameters you've set by specifying a source of 'user'." ) user_parameters = self.aurora_wrapper.get_parameters( parameter_group_name, source="user" ) pp(user_parameters) print("-" * 88) def create_cluster(self, cluster_name, db_engine, db_name, parameter_group): """ Shows how to create an Aurora DB cluster that contains a database of a specified type. The database is also configured to use a custom DB cluster parameter group. :param cluster_name: The name given to the newly created DB cluster. :param db_engine: The engine of the created database. :param db_name: The name given to the created database. :param parameter_group: The parameter group that is associated with the DB cluster. :return: The newly created DB cluster. """ print("Checking for an existing DB cluster.") cluster = self.aurora_wrapper.get_db_cluster(cluster_name) if cluster is None: admin_username = q.ask( "Enter an administrator user name for the database: ", q.non_empty ) admin_password = q.ask( "Enter a password for the administrator (at least 8 characters): ", q.non_empty, ) engine_versions = self.aurora_wrapper.get_engine_versions( db_engine, parameter_group["DBParameterGroupFamily"] ) engine_choices = [ ver["EngineVersionDescription"] for ver in engine_versions ] print("The available engines for your parameter group are:") engine_index = q.choose("Which engine do you want to use? ", engine_choices) print( f"Creating DB cluster {cluster_name} and database {db_name}.\n" f"The DB cluster is configured to use\n" f"your custom parameter group {parameter_group['DBClusterParameterGroupName']}\n" f"and selected engine {engine_choices[engine_index]}.\n" f"This typically takes several minutes." ) cluster = self.aurora_wrapper.create_db_cluster( cluster_name, parameter_group["DBClusterParameterGroupName"], db_name, db_engine, engine_versions[engine_index]["EngineVersion"], admin_username, admin_password, ) while cluster.get("Status") != "available": wait(30) cluster = self.aurora_wrapper.get_db_cluster(cluster_name) print("Cluster created and available.\n") print("Cluster data:") pp(cluster) print("-" * 88) return cluster def create_instance(self, cluster): """ Shows how to create a DB instance in an existing Aurora DB cluster. A new DB cluster contains no DB instances, so you must add one. The first DB instance that is added to a DB cluster defaults to a read-write DB instance. :param cluster: The DB cluster where the DB instance is added. :return: The newly created DB instance. """ print("Checking for an existing database instance.") cluster_name = cluster["DBClusterIdentifier"] db_inst = self.aurora_wrapper.get_db_instance(cluster_name) if db_inst is None: print("Let's create a database instance in your DB cluster.") print("First, choose a DB instance type:") inst_opts = self.aurora_wrapper.get_orderable_instances( cluster["Engine"], cluster["EngineVersion"] ) inst_choices = list( { opt["DBInstanceClass"] + ", storage type: " + opt["StorageType"] for opt in inst_opts } ) inst_index = q.choose( "Which DB instance class do you want to use? ", inst_choices ) print( f"Creating a database instance. This typically takes several minutes." ) db_inst = self.aurora_wrapper.create_instance_in_cluster( cluster_name, cluster_name, cluster["Engine"], inst_opts[inst_index]["DBInstanceClass"], ) while db_inst.get("DBInstanceStatus") != "available": wait(30) db_inst = self.aurora_wrapper.get_db_instance(cluster_name) print("Instance data:") pp(db_inst) print("-" * 88) return db_inst @staticmethod def display_connection(cluster): """ Displays connection information about an Aurora DB cluster and tips on how to connect to it. :param cluster: The DB cluster to display. """ print( "You can now connect to your database using your favorite MySql client.\n" "One way to connect is by using the 'mysql' shell on an Amazon EC2 instance\n" "that is running in the same VPC as your database cluster. Pass the endpoint,\n" "port, and administrator user name to 'mysql' and enter your password\n" "when prompted:\n" ) print( f"\n\tmysql -h {cluster['Endpoint']} -P {cluster['Port']} -u {cluster['MasterUsername']} -p\n" ) print( "For more information, see the User Guide for Aurora:\n" "\thttps://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/CHAP_GettingStartedAurora.CreatingConnecting.Aurora.html#CHAP_GettingStartedAurora.Aurora.Connect" ) print("-" * 88) def create_snapshot(self, cluster_name): """ Shows how to create a DB cluster snapshot and wait until it's available. :param cluster_name: The name of a DB cluster to snapshot. """ if q.ask( "Do you want to create a snapshot of your DB cluster (y/n)? ", q.is_yesno ): snapshot_id = f"{cluster_name}-{uuid.uuid4()}" print( f"Creating a snapshot named {snapshot_id}. This typically takes a few minutes." ) snapshot = self.aurora_wrapper.create_cluster_snapshot( snapshot_id, cluster_name ) while snapshot.get("Status") != "available": wait(30) snapshot = self.aurora_wrapper.get_cluster_snapshot(snapshot_id) pp(snapshot) print("-" * 88) def cleanup(self, db_inst, cluster, parameter_group): """ Shows how to clean up a DB instance, DB cluster, and DB cluster parameter group. Before the DB cluster parameter group can be deleted, all associated DB instances and DB clusters must first be deleted. :param db_inst: The DB instance to delete. :param cluster: The DB cluster to delete. :param parameter_group: The DB cluster parameter group to delete. """ cluster_name = cluster["DBClusterIdentifier"] parameter_group_name = parameter_group["DBClusterParameterGroupName"] if q.ask( "\nDo you want to delete the database instance, DB cluster, and parameter " "group (y/n)? ", q.is_yesno, ): print(f"Deleting database instance {db_inst['DBInstanceIdentifier']}.") self.aurora_wrapper.delete_db_instance(db_inst["DBInstanceIdentifier"]) print(f"Deleting database cluster {cluster_name}.") self.aurora_wrapper.delete_db_cluster(cluster_name) print( "Waiting for the DB instance and DB cluster to delete.\n" "This typically takes several minutes." ) while db_inst is not None or cluster is not None: wait(30) if db_inst is not None: db_inst = self.aurora_wrapper.get_db_instance( db_inst["DBInstanceIdentifier"] ) if cluster is not None: cluster = self.aurora_wrapper.get_db_cluster( cluster["DBClusterIdentifier"] ) print(f"Deleting parameter group {parameter_group_name}.") self.aurora_wrapper.delete_parameter_group(parameter_group_name) def run_scenario(self, db_engine, parameter_group_name, cluster_name, db_name): print("-" * 88) print( "Welcome to the Amazon Relational Database Service (Amazon RDS) get started\n" "with Aurora DB clusters demo." ) print("-" * 88) parameter_group = self.create_parameter_group(db_engine, parameter_group_name) self.set_user_parameters(parameter_group_name) cluster = self.create_cluster(cluster_name, db_engine, db_name, parameter_group) wait(5) db_inst = self.create_instance(cluster) self.display_connection(cluster) self.create_snapshot(cluster_name) self.cleanup(db_inst, cluster, parameter_group) print("\nThanks for watching!") print("-" * 88) if __name__ == "__main__": logging.basicConfig(level=logging.INFO, format="%(levelname)s: %(message)s") try: scenario = AuroraClusterScenario(AuroraWrapper.from_client()) scenario.run_scenario( "aurora-mysql", "doc-example-cluster-parameter-group", "doc-example-aurora", "docexampledb", ) except Exception: logging.exception("Something went wrong with the demo.") ``` Aurora アクションを管理するためにシナリオによって呼び出される関数を定義します。 ``` class AuroraWrapper: """Encapsulates Aurora DB cluster actions.""" def __init__(self, rds_client): """ :param rds_client: A Boto3 Amazon Relational Database Service (Amazon RDS) client. """ self.rds_client = rds_client @classmethod def from_client(cls): """ Instantiates this class from a Boto3 client. """ rds_client = boto3.client("rds") return cls(rds_client) def get_parameter_group(self, parameter_group_name): """ Gets a DB cluster parameter group. :param parameter_group_name: The name of the parameter group to retrieve. :return: The requested parameter group. """ try: response = self.rds_client.describe_db_cluster_parameter_groups( DBClusterParameterGroupName=parameter_group_name ) parameter_group = response["DBClusterParameterGroups"][0] except ClientError as err: if err.response["Error"]["Code"] == "DBParameterGroupNotFound": logger.info("Parameter group %s does not exist.", parameter_group_name) else: logger.error( "Couldn't get parameter group %s. Here's why: %s: %s", parameter_group_name, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return parameter_group def create_parameter_group( self, parameter_group_name, parameter_group_family, description ): """ Creates a DB cluster parameter group that is based on the specified parameter group family. :param parameter_group_name: The name of the newly created parameter group. :param parameter_group_family: The family that is used as the basis of the new parameter group. :param description: A description given to the parameter group. :return: Data about the newly created parameter group. """ try: response = self.rds_client.create_db_cluster_parameter_group( DBClusterParameterGroupName=parameter_group_name, DBParameterGroupFamily=parameter_group_family, Description=description, ) except ClientError as err: logger.error( "Couldn't create parameter group %s. Here's why: %s: %s", parameter_group_name, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return response def delete_parameter_group(self, parameter_group_name): """ Deletes a DB cluster parameter group. :param parameter_group_name: The name of the parameter group to delete. :return: Data about the parameter group. """ try: response = self.rds_client.delete_db_cluster_parameter_group( DBClusterParameterGroupName=parameter_group_name ) except ClientError as err: logger.error( "Couldn't delete parameter group %s. Here's why: %s: %s", parameter_group_name, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return response def get_parameters(self, parameter_group_name, name_prefix="", source=None): """ Gets the parameters that are contained in a DB cluster parameter group. :param parameter_group_name: The name of the parameter group to query. :param name_prefix: When specified, the retrieved list of parameters is filtered to contain only parameters that start with this prefix. :param source: When specified, only parameters from this source are retrieved. For example, a source of 'user' retrieves only parameters that were set by a user. :return: The list of requested parameters. """ try: kwargs = {"DBClusterParameterGroupName": parameter_group_name} if source is not None: kwargs["Source"] = source parameters = [] paginator = self.rds_client.get_paginator("describe_db_cluster_parameters") for page in paginator.paginate(**kwargs): parameters += [ p for p in page["Parameters"] if p["ParameterName"].startswith(name_prefix) ] except ClientError as err: logger.error( "Couldn't get parameters for %s. Here's why: %s: %s", parameter_group_name, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return parameters def update_parameters(self, parameter_group_name, update_parameters): """ Updates parameters in a custom DB cluster parameter group. :param parameter_group_name: The name of the parameter group to update. :param update_parameters: The parameters to update in the group. :return: Data about the modified parameter group. """ try: response = self.rds_client.modify_db_cluster_parameter_group( DBClusterParameterGroupName=parameter_group_name, Parameters=update_parameters, ) except ClientError as err: logger.error( "Couldn't update parameters in %s. Here's why: %s: %s", parameter_group_name, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return response def get_db_cluster(self, cluster_name): """ Gets data about an Aurora DB cluster. :param cluster_name: The name of the DB cluster to retrieve. :return: The retrieved DB cluster. """ try: response = self.rds_client.describe_db_clusters( DBClusterIdentifier=cluster_name ) cluster = response["DBClusters"][0] except ClientError as err: if err.response["Error"]["Code"] == "DBClusterNotFoundFault": logger.info("Cluster %s does not exist.", cluster_name) else: logger.error( "Couldn't verify the existence of DB cluster %s. Here's why: %s: %s", cluster_name, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return cluster def create_db_cluster( self, cluster_name, parameter_group_name, db_name, db_engine, db_engine_version, admin_name, admin_password, ): """ Creates a DB cluster that is configured to use the specified parameter group. The newly created DB cluster contains a database that uses the specified engine and engine version. :param cluster_name: The name of the DB cluster to create. :param parameter_group_name: The name of the parameter group to associate with the DB cluster. :param db_name: The name of the database to create. :param db_engine: The database engine of the database that is created, such as MySql. :param db_engine_version: The version of the database engine. :param admin_name: The user name of the database administrator. :param admin_password: The password of the database administrator. :return: The newly created DB cluster. """ try: response = self.rds_client.create_db_cluster( DatabaseName=db_name, DBClusterIdentifier=cluster_name, DBClusterParameterGroupName=parameter_group_name, Engine=db_engine, EngineVersion=db_engine_version, MasterUsername=admin_name, MasterUserPassword=admin_password, ) cluster = response["DBCluster"] except ClientError as err: logger.error( "Couldn't create database %s. Here's why: %s: %s", db_name, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return cluster def delete_db_cluster(self, cluster_name): """ Deletes a DB cluster. :param cluster_name: The name of the DB cluster to delete. """ try: self.rds_client.delete_db_cluster( DBClusterIdentifier=cluster_name, SkipFinalSnapshot=True ) logger.info("Deleted DB cluster %s.", cluster_name) except ClientError: logger.exception("Couldn't delete DB cluster %s.", cluster_name) raise def create_cluster_snapshot(self, snapshot_id, cluster_id): """ Creates a snapshot of a DB cluster. :param snapshot_id: The ID to give the created snapshot. :param cluster_id: The DB cluster to snapshot. :return: Data about the newly created snapshot. """ try: response = self.rds_client.create_db_cluster_snapshot( DBClusterSnapshotIdentifier=snapshot_id, DBClusterIdentifier=cluster_id ) snapshot = response["DBClusterSnapshot"] except ClientError as err: logger.error( "Couldn't create snapshot of %s. Here's why: %s: %s", cluster_id, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return snapshot def get_cluster_snapshot(self, snapshot_id): """ Gets a DB cluster snapshot. :param snapshot_id: The ID of the snapshot to retrieve. :return: The retrieved snapshot. """ try: response = self.rds_client.describe_db_cluster_snapshots( DBClusterSnapshotIdentifier=snapshot_id ) snapshot = response["DBClusterSnapshots"][0] except ClientError as err: logger.error( "Couldn't get DB cluster snapshot %s. Here's why: %s: %s", snapshot_id, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return snapshot def create_instance_in_cluster( self, instance_id, cluster_id, db_engine, instance_class ): """ Creates a database instance in an existing DB cluster. The first database that is created defaults to a read-write DB instance. :param instance_id: The ID to give the newly created DB instance. :param cluster_id: The ID of the DB cluster where the DB instance is created. :param db_engine: The database engine of a database to create in the DB instance. This must be compatible with the configured parameter group of the DB cluster. :param instance_class: The DB instance class for the newly created DB instance. :return: Data about the newly created DB instance. """ try: response = self.rds_client.create_db_instance( DBInstanceIdentifier=instance_id, DBClusterIdentifier=cluster_id, Engine=db_engine, DBInstanceClass=instance_class, ) db_inst = response["DBInstance"] except ClientError as err: logger.error( "Couldn't create DB instance %s. Here's why: %s: %s", instance_id, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return db_inst def get_engine_versions(self, engine, parameter_group_family=None): """ Gets database engine versions that are available for the specified engine and parameter group family. :param engine: The database engine to look up. :param parameter_group_family: When specified, restricts the returned list of engine versions to those that are compatible with this parameter group family. :return: The list of database engine versions. """ try: kwargs = {"Engine": engine} if parameter_group_family is not None: kwargs["DBParameterGroupFamily"] = parameter_group_family response = self.rds_client.describe_db_engine_versions(**kwargs) versions = response["DBEngineVersions"] except ClientError as err: logger.error( "Couldn't get engine versions for %s. Here's why: %s: %s", engine, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return versions def get_orderable_instances(self, db_engine, db_engine_version): """ Gets DB instance options that can be used to create DB instances that are compatible with a set of specifications. :param db_engine: The database engine that must be supported by the DB instance. :param db_engine_version: The engine version that must be supported by the DB instance. :return: The list of DB instance options that can be used to create a compatible DB instance. """ try: inst_opts = [] paginator = self.rds_client.get_paginator( "describe_orderable_db_instance_options" ) for page in paginator.paginate( Engine=db_engine, EngineVersion=db_engine_version ): inst_opts += page["OrderableDBInstanceOptions"] except ClientError as err: logger.error( "Couldn't get orderable DB instances. Here's why: %s: %s", err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return inst_opts def get_db_instance(self, instance_id): """ Gets data about a DB instance. :param instance_id: The ID of the DB instance to retrieve. :return: The retrieved DB instance. """ try: response = self.rds_client.describe_db_instances( DBInstanceIdentifier=instance_id ) db_inst = response["DBInstances"][0] except ClientError as err: if err.response["Error"]["Code"] == "DBInstanceNotFound": logger.info("Instance %s does not exist.", instance_id) else: logger.error( "Couldn't get DB instance %s. Here's why: %s: %s", instance_id, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return db_inst def delete_db_instance(self, instance_id): """ Deletes a DB instance. :param instance_id: The ID of the DB instance to delete. :return: Data about the deleted DB instance. """ try: response = self.rds_client.delete_db_instance( DBInstanceIdentifier=instance_id, SkipFinalSnapshot=True, DeleteAutomatedBackups=True, ) db_inst = response["DBInstance"] except ClientError as err: logger.error( "Couldn't delete DB instance %s. Here's why: %s: %s", instance_id, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return db_inst ``` + API の詳細については、「*AWS SDK for Python (Boto3) API リファレンス*」の以下のトピックを参照してください。 + [CreateDBCluster](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/CreateDBCluster) + [CreateDBClusterParameterGroup](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/CreateDBClusterParameterGroup) + [CreateDBClusterSnapshot](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/CreateDBClusterSnapshot) + [CreateDBInstance](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/CreateDBInstance) + [DeleteDBCluster](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/DeleteDBCluster) + [DeleteDBClusterParameterGroup](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/DeleteDBClusterParameterGroup) + [DeleteDBInstance](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/DeleteDBInstance) + [DescribeDBClusterParameterGroups](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/DescribeDBClusterParameterGroups) + [DescribeDBClusterParameters](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/DescribeDBClusterParameters) + [DescribeDBClusterSnapshots](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/DescribeDBClusterSnapshots) + [DescribeDBClusters](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/DescribeDBClusters) + [DescribeDBEngineVersions](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/DescribeDBEngineVersions) + [DescribeDBInstances](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/DescribeDBInstances) + [DescribeOrderableDBInstanceOptions](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/DescribeOrderableDBInstanceOptions) + [ModifyDBClusterParameterGroup](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/ModifyDBClusterParameterGroup) ------ #### [ Rust ] **SDK for Rust** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/rustv1/examples/aurora#code-examples)での設定と実行の方法を確認してください。 Aurora シナリオのシナリオ固有の関数を含むライブラリ。 ``` use phf::{phf_set, Set}; use secrecy::SecretString; use std::{collections::HashMap, fmt::Display, time::Duration}; use aws_sdk_rds::{ error::ProvideErrorMetadata, operation::create_db_cluster_parameter_group::CreateDbClusterParameterGroupOutput, types::{DbCluster, DbClusterParameterGroup, DbClusterSnapshot, DbInstance, Parameter}, }; use sdk_examples_test_utils::waiter::Waiter; use tracing::{info, trace, warn}; const DB_ENGINE: &str = "aurora-mysql"; const DB_CLUSTER_PARAMETER_GROUP_NAME: &str = "RustSDKCodeExamplesDBParameterGroup"; const DB_CLUSTER_PARAMETER_GROUP_DESCRIPTION: &str = "Parameter Group created by Rust SDK Code Example"; const DB_CLUSTER_IDENTIFIER: &str = "RustSDKCodeExamplesDBCluster"; const DB_INSTANCE_IDENTIFIER: &str = "RustSDKCodeExamplesDBInstance"; static FILTER_PARAMETER_NAMES: Set<&'static str> = phf_set! { "auto_increment_offset", "auto_increment_increment", }; #[derive(Debug, PartialEq, Eq)] struct MetadataError { message: Option, code: Option, } impl MetadataError { fn from(err: &dyn ProvideErrorMetadata) -> Self { MetadataError { message: err.message().map(String::from), code: err.code().map(String::from), } } } impl Display for MetadataError { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { let display = match (&self.message, &self.code) { (None, None) => "Unknown".to_string(), (None, Some(code)) => format!("({code})"), (Some(message), None) => message.to_string(), (Some(message), Some(code)) => format!("{message} ({code})"), }; write!(f, "{display}") } } #[derive(Debug, PartialEq, Eq)] pub struct ScenarioError { message: String, context: Option, } impl ScenarioError { pub fn with(message: impl Into) -> Self { ScenarioError { message: message.into(), context: None, } } pub fn new(message: impl Into, err: &dyn ProvideErrorMetadata) -> Self { ScenarioError { message: message.into(), context: Some(MetadataError::from(err)), } } } impl std::error::Error for ScenarioError {} impl Display for ScenarioError { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { match &self.context { Some(c) => write!(f, "{}: {}", self.message, c), None => write!(f, "{}", self.message), } } } // Parse the ParameterName, Description, and AllowedValues values and display them. #[derive(Debug)] pub struct AuroraScenarioParameter { name: String, allowed_values: String, current_value: String, } impl Display for AuroraScenarioParameter { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { write!( f, "{}: {} (allowed: {})", self.name, self.current_value, self.allowed_values ) } } impl From for AuroraScenarioParameter { fn from(value: aws_sdk_rds::types::Parameter) -> Self { AuroraScenarioParameter { name: value.parameter_name.unwrap_or_default(), allowed_values: value.allowed_values.unwrap_or_default(), current_value: value.parameter_value.unwrap_or_default(), } } } pub struct AuroraScenario { rds: crate::rds::Rds, engine_family: Option, engine_version: Option, instance_class: Option, db_cluster_parameter_group: Option, db_cluster_identifier: Option, db_instance_identifier: Option, username: Option, password: Option, } impl AuroraScenario { pub fn new(client: crate::rds::Rds) -> Self { AuroraScenario { rds: client, engine_family: None, engine_version: None, instance_class: None, db_cluster_parameter_group: None, db_cluster_identifier: None, db_instance_identifier: None, username: None, password: None, } } // Get available engine families for Aurora MySql. rds.DescribeDbEngineVersions(Engine='aurora-mysql') and build a set of the 'DBParameterGroupFamily' field values. I get {aurora-mysql8.0, aurora-mysql5.7}. pub async fn get_engines(&self) -> Result>, ScenarioError> { let describe_db_engine_versions = self.rds.describe_db_engine_versions(DB_ENGINE).await; trace!(versions=?describe_db_engine_versions, "full list of versions"); if let Err(err) = describe_db_engine_versions { return Err(ScenarioError::new( "Failed to retrieve DB Engine Versions", &err, )); }; let version_count = describe_db_engine_versions .as_ref() .map(|o| o.db_engine_versions().len()) .unwrap_or_default(); info!(version_count, "got list of versions"); // Create a map of engine families to their available versions. let mut versions = HashMap::>::new(); describe_db_engine_versions .unwrap() .db_engine_versions() .iter() .filter_map( |v| match (&v.db_parameter_group_family, &v.engine_version) { (Some(family), Some(version)) => Some((family.clone(), version.clone())), _ => None, }, ) .for_each(|(family, version)| versions.entry(family).or_default().push(version)); Ok(versions) } pub async fn get_instance_classes(&self) -> Result, ScenarioError> { let describe_orderable_db_instance_options_items = self .rds .describe_orderable_db_instance_options( DB_ENGINE, self.engine_version .as_ref() .expect("engine version for db instance options") .as_str(), ) .await; describe_orderable_db_instance_options_items .map(|options| { options .iter() .filter(|o| o.storage_type() == Some("aurora")) .map(|o| o.db_instance_class().unwrap_or_default().to_string()) .collect::>() }) .map_err(|err| ScenarioError::new("Could not get available instance classes", &err)) } // Select an engine family and create a custom DB cluster parameter group. rds.CreateDbClusterParameterGroup(DBParameterGroupFamily='aurora-mysql8.0') pub async fn set_engine(&mut self, engine: &str, version: &str) -> Result<(), ScenarioError> { self.engine_family = Some(engine.to_string()); self.engine_version = Some(version.to_string()); let create_db_cluster_parameter_group = self .rds .create_db_cluster_parameter_group( DB_CLUSTER_PARAMETER_GROUP_NAME, DB_CLUSTER_PARAMETER_GROUP_DESCRIPTION, engine, ) .await; match create_db_cluster_parameter_group { Ok(CreateDbClusterParameterGroupOutput { db_cluster_parameter_group: None, .. }) => { return Err(ScenarioError::with( "CreateDBClusterParameterGroup had empty response", )); } Err(error) => { if error.code() == Some("DBParameterGroupAlreadyExists") { info!("Cluster Parameter Group already exists, nothing to do"); } else { return Err(ScenarioError::new( "Could not create Cluster Parameter Group", &error, )); } } _ => { info!("Created Cluster Parameter Group"); } } Ok(()) } pub fn set_instance_class(&mut self, instance_class: Option) { self.instance_class = instance_class; } pub fn set_login(&mut self, username: Option, password: Option) { self.username = username; self.password = password; } pub async fn connection_string(&self) -> Result { let cluster = self.get_cluster().await?; let endpoint = cluster.endpoint().unwrap_or_default(); let port = cluster.port().unwrap_or_default(); let username = cluster.master_username().unwrap_or_default(); Ok(format!("mysql -h {endpoint} -P {port} -u {username} -p")) } pub async fn get_cluster(&self) -> Result { let describe_db_clusters_output = self .rds .describe_db_clusters( self.db_cluster_identifier .as_ref() .expect("cluster identifier") .as_str(), ) .await; if let Err(err) = describe_db_clusters_output { return Err(ScenarioError::new("Failed to get cluster", &err)); } let db_cluster = describe_db_clusters_output .unwrap() .db_clusters .and_then(|output| output.first().cloned()); db_cluster.ok_or_else(|| ScenarioError::with("Did not find the cluster")) } // Get the parameter group. rds.DescribeDbClusterParameterGroups // Get parameters in the group. This is a long list so you will have to paginate. Find the auto_increment_offset and auto_increment_increment parameters (by ParameterName). rds.DescribeDbClusterParameters // Parse the ParameterName, Description, and AllowedValues values and display them. pub async fn cluster_parameters(&self) -> Result, ScenarioError> { let parameters_output = self .rds .describe_db_cluster_parameters(DB_CLUSTER_PARAMETER_GROUP_NAME) .await; if let Err(err) = parameters_output { return Err(ScenarioError::new( format!("Failed to retrieve parameters for {DB_CLUSTER_PARAMETER_GROUP_NAME}"), &err, )); } let parameters = parameters_output .unwrap() .into_iter() .flat_map(|p| p.parameters.unwrap_or_default().into_iter()) .filter(|p| FILTER_PARAMETER_NAMES.contains(p.parameter_name().unwrap_or_default())) .map(AuroraScenarioParameter::from) .collect::>(); Ok(parameters) } // Modify both the auto_increment_offset and auto_increment_increment parameters in one call in the custom parameter group. Set their ParameterValue fields to a new allowable value. rds.ModifyDbClusterParameterGroup. pub async fn update_auto_increment( &self, offset: u8, increment: u8, ) -> Result<(), ScenarioError> { let modify_db_cluster_parameter_group = self .rds .modify_db_cluster_parameter_group( DB_CLUSTER_PARAMETER_GROUP_NAME, vec![ Parameter::builder() .parameter_name("auto_increment_offset") .parameter_value(format!("{offset}")) .apply_method(aws_sdk_rds::types::ApplyMethod::Immediate) .build(), Parameter::builder() .parameter_name("auto_increment_increment") .parameter_value(format!("{increment}")) .apply_method(aws_sdk_rds::types::ApplyMethod::Immediate) .build(), ], ) .await; if let Err(error) = modify_db_cluster_parameter_group { return Err(ScenarioError::new( "Failed to modify cluster parameter group", &error, )); } Ok(()) } // Get a list of allowed engine versions. rds.DescribeDbEngineVersions(Engine='aurora-mysql', DBParameterGroupFamily=) // Create an Aurora DB cluster database cluster that contains a MySql database and uses the parameter group you created. // Wait for DB cluster to be ready. Call rds.DescribeDBClusters and check for Status == 'available'. // Get a list of instance classes available for the selected engine and engine version. rds.DescribeOrderableDbInstanceOptions(Engine='mysql', EngineVersion=). // Create a database instance in the cluster. // Wait for DB instance to be ready. Call rds.DescribeDbInstances and check for DBInstanceStatus == 'available'. pub async fn start_cluster_and_instance(&mut self) -> Result<(), ScenarioError> { if self.password.is_none() { return Err(ScenarioError::with( "Must set Secret Password before starting a cluster", )); } let create_db_cluster = self .rds .create_db_cluster( DB_CLUSTER_IDENTIFIER, DB_CLUSTER_PARAMETER_GROUP_NAME, DB_ENGINE, self.engine_version.as_deref().expect("engine version"), self.username.as_deref().expect("username"), self.password .replace(SecretString::new("".to_string())) .expect("password"), ) .await; if let Err(err) = create_db_cluster { return Err(ScenarioError::new( "Failed to create DB Cluster with cluster group", &err, )); } self.db_cluster_identifier = create_db_cluster .unwrap() .db_cluster .and_then(|c| c.db_cluster_identifier); if self.db_cluster_identifier.is_none() { return Err(ScenarioError::with("Created DB Cluster missing Identifier")); } info!( "Started a db cluster: {}", self.db_cluster_identifier .as_deref() .unwrap_or("Missing ARN") ); let create_db_instance = self .rds .create_db_instance( self.db_cluster_identifier.as_deref().expect("cluster name"), DB_INSTANCE_IDENTIFIER, self.instance_class.as_deref().expect("instance class"), DB_ENGINE, ) .await; if let Err(err) = create_db_instance { return Err(ScenarioError::new( "Failed to create Instance in DB Cluster", &err, )); } self.db_instance_identifier = create_db_instance .unwrap() .db_instance .and_then(|i| i.db_instance_identifier); // Cluster creation can take up to 20 minutes to become available let cluster_max_wait = Duration::from_secs(20 * 60); let waiter = Waiter::builder().max(cluster_max_wait).build(); while waiter.sleep().await.is_ok() { let cluster = self .rds .describe_db_clusters( self.db_cluster_identifier .as_deref() .expect("cluster identifier"), ) .await; if let Err(err) = cluster { warn!(?err, "Failed to describe cluster while waiting for ready"); continue; } let instance = self .rds .describe_db_instance( self.db_instance_identifier .as_deref() .expect("instance identifier"), ) .await; if let Err(err) = instance { return Err(ScenarioError::new( "Failed to find instance for cluster", &err, )); } let instances_available = instance .unwrap() .db_instances() .iter() .all(|instance| instance.db_instance_status() == Some("Available")); let endpoints = self .rds .describe_db_cluster_endpoints( self.db_cluster_identifier .as_deref() .expect("cluster identifier"), ) .await; if let Err(err) = endpoints { return Err(ScenarioError::new( "Failed to find endpoint for cluster", &err, )); } let endpoints_available = endpoints .unwrap() .db_cluster_endpoints() .iter() .all(|endpoint| endpoint.status() == Some("available")); if instances_available && endpoints_available { return Ok(()); } } Err(ScenarioError::with("timed out waiting for cluster")) } // Create a snapshot of the DB cluster. rds.CreateDbClusterSnapshot. // Wait for the snapshot to create. rds.DescribeDbClusterSnapshots until Status == 'available'. pub async fn snapshot(&self, name: &str) -> Result { let id = self.db_cluster_identifier.as_deref().unwrap_or_default(); let snapshot = self .rds .snapshot_cluster(id, format!("{id}_{name}").as_str()) .await; match snapshot { Ok(output) => match output.db_cluster_snapshot { Some(snapshot) => Ok(snapshot), None => Err(ScenarioError::with("Missing Snapshot")), }, Err(err) => Err(ScenarioError::new("Failed to create snapshot", &err)), } } pub async fn clean_up(self) -> Result<(), Vec> { let mut clean_up_errors: Vec = vec![]; // Delete the instance. rds.DeleteDbInstance. let delete_db_instance = self .rds .delete_db_instance( self.db_instance_identifier .as_deref() .expect("instance identifier"), ) .await; if let Err(err) = delete_db_instance { let identifier = self .db_instance_identifier .as_deref() .unwrap_or("Missing Instance Identifier"); let message = format!("failed to delete db instance {identifier}"); clean_up_errors.push(ScenarioError::new(message, &err)); } else { // Wait for the instance to delete let waiter = Waiter::default(); while waiter.sleep().await.is_ok() { let describe_db_instances = self.rds.describe_db_instances().await; if let Err(err) = describe_db_instances { clean_up_errors.push(ScenarioError::new( "Failed to check instance state during deletion", &err, )); break; } let db_instances = describe_db_instances .unwrap() .db_instances() .iter() .filter(|instance| instance.db_cluster_identifier == self.db_cluster_identifier) .cloned() .collect::>(); if db_instances.is_empty() { trace!("Delete Instance waited and no instances were found"); break; } match db_instances.first().unwrap().db_instance_status() { Some("Deleting") => continue, Some(status) => { info!("Attempting to delete but instances is in {status}"); continue; } None => { warn!("No status for DB instance"); break; } } } } // Delete the DB cluster. rds.DeleteDbCluster. let delete_db_cluster = self .rds .delete_db_cluster( self.db_cluster_identifier .as_deref() .expect("cluster identifier"), ) .await; if let Err(err) = delete_db_cluster { let identifier = self .db_cluster_identifier .as_deref() .unwrap_or("Missing DB Cluster Identifier"); let message = format!("failed to delete db cluster {identifier}"); clean_up_errors.push(ScenarioError::new(message, &err)); } else { // Wait for the instance and cluster to fully delete. rds.DescribeDbInstances and rds.DescribeDbClusters until both are not found. let waiter = Waiter::default(); while waiter.sleep().await.is_ok() { let describe_db_clusters = self .rds .describe_db_clusters( self.db_cluster_identifier .as_deref() .expect("cluster identifier"), ) .await; if let Err(err) = describe_db_clusters { clean_up_errors.push(ScenarioError::new( "Failed to check cluster state during deletion", &err, )); break; } let describe_db_clusters = describe_db_clusters.unwrap(); let db_clusters = describe_db_clusters.db_clusters(); if db_clusters.is_empty() { trace!("Delete cluster waited and no clusters were found"); break; } match db_clusters.first().unwrap().status() { Some("Deleting") => continue, Some(status) => { info!("Attempting to delete but clusters is in {status}"); continue; } None => { warn!("No status for DB cluster"); break; } } } } // Delete the DB cluster parameter group. rds.DeleteDbClusterParameterGroup. let delete_db_cluster_parameter_group = self .rds .delete_db_cluster_parameter_group( self.db_cluster_parameter_group .map(|g| { g.db_cluster_parameter_group_name .unwrap_or_else(|| DB_CLUSTER_PARAMETER_GROUP_NAME.to_string()) }) .as_deref() .expect("cluster parameter group name"), ) .await; if let Err(error) = delete_db_cluster_parameter_group { clean_up_errors.push(ScenarioError::new( "Failed to delete the db cluster parameter group", &error, )) } if clean_up_errors.is_empty() { Ok(()) } else { Err(clean_up_errors) } } } #[cfg(test)] pub mod tests; ``` RDS Client ラッパーのオートモックを使用してライブラリをテストします。 ``` use crate::rds::MockRdsImpl; use super::*; use std::io::{Error, ErrorKind}; use assert_matches::assert_matches; use aws_sdk_rds::{ error::SdkError, operation::{ create_db_cluster::{CreateDBClusterError, CreateDbClusterOutput}, create_db_cluster_parameter_group::CreateDBClusterParameterGroupError, create_db_cluster_snapshot::{CreateDBClusterSnapshotError, CreateDbClusterSnapshotOutput}, create_db_instance::{CreateDBInstanceError, CreateDbInstanceOutput}, delete_db_cluster::DeleteDbClusterOutput, delete_db_cluster_parameter_group::DeleteDbClusterParameterGroupOutput, delete_db_instance::DeleteDbInstanceOutput, describe_db_cluster_endpoints::DescribeDbClusterEndpointsOutput, describe_db_cluster_parameters::{ DescribeDBClusterParametersError, DescribeDbClusterParametersOutput, }, describe_db_clusters::{DescribeDBClustersError, DescribeDbClustersOutput}, describe_db_engine_versions::{ DescribeDBEngineVersionsError, DescribeDbEngineVersionsOutput, }, describe_db_instances::{DescribeDBInstancesError, DescribeDbInstancesOutput}, describe_orderable_db_instance_options::DescribeOrderableDBInstanceOptionsError, modify_db_cluster_parameter_group::{ ModifyDBClusterParameterGroupError, ModifyDbClusterParameterGroupOutput, }, }, types::{ error::DbParameterGroupAlreadyExistsFault, DbClusterEndpoint, DbEngineVersion, OrderableDbInstanceOption, }, }; use aws_smithy_runtime_api::http::{Response, StatusCode}; use aws_smithy_types::body::SdkBody; use mockall::predicate::eq; use secrecy::ExposeSecret; #[tokio::test] async fn test_scenario_set_engine() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster_parameter_group() .with( eq("RustSDKCodeExamplesDBParameterGroup"), eq("Parameter Group created by Rust SDK Code Example"), eq("aurora-mysql"), ) .return_once(|_, _, _| { Ok(CreateDbClusterParameterGroupOutput::builder() .db_cluster_parameter_group(DbClusterParameterGroup::builder().build()) .build()) }); let mut scenario = AuroraScenario::new(mock_rds); let set_engine = scenario.set_engine("aurora-mysql", "aurora-mysql8.0").await; assert_eq!(set_engine, Ok(())); assert_eq!(Some("aurora-mysql"), scenario.engine_family.as_deref()); assert_eq!(Some("aurora-mysql8.0"), scenario.engine_version.as_deref()); } #[tokio::test] async fn test_scenario_set_engine_not_create() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster_parameter_group() .with( eq("RustSDKCodeExamplesDBParameterGroup"), eq("Parameter Group created by Rust SDK Code Example"), eq("aurora-mysql"), ) .return_once(|_, _, _| Ok(CreateDbClusterParameterGroupOutput::builder().build())); let mut scenario = AuroraScenario::new(mock_rds); let set_engine = scenario.set_engine("aurora-mysql", "aurora-mysql8.0").await; assert!(set_engine.is_err()); } #[tokio::test] async fn test_scenario_set_engine_param_group_exists() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster_parameter_group() .withf(|_, _, _| true) .return_once(|_, _, _| { Err(SdkError::service_error( CreateDBClusterParameterGroupError::DbParameterGroupAlreadyExistsFault( DbParameterGroupAlreadyExistsFault::builder().build(), ), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); let mut scenario = AuroraScenario::new(mock_rds); let set_engine = scenario.set_engine("aurora-mysql", "aurora-mysql8.0").await; assert!(set_engine.is_err()); } #[tokio::test] async fn test_scenario_get_engines() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_describe_db_engine_versions() .with(eq("aurora-mysql")) .return_once(|_| { Ok(DescribeDbEngineVersionsOutput::builder() .db_engine_versions( DbEngineVersion::builder() .db_parameter_group_family("f1") .engine_version("f1a") .build(), ) .db_engine_versions( DbEngineVersion::builder() .db_parameter_group_family("f1") .engine_version("f1b") .build(), ) .db_engine_versions( DbEngineVersion::builder() .db_parameter_group_family("f2") .engine_version("f2a") .build(), ) .db_engine_versions(DbEngineVersion::builder().build()) .build()) }); let scenario = AuroraScenario::new(mock_rds); let versions_map = scenario.get_engines().await; assert_eq!( versions_map, Ok(HashMap::from([ ("f1".into(), vec!["f1a".into(), "f1b".into()]), ("f2".into(), vec!["f2a".into()]) ])) ); } #[tokio::test] async fn test_scenario_get_engines_failed() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_describe_db_engine_versions() .with(eq("aurora-mysql")) .return_once(|_| { Err(SdkError::service_error( DescribeDBEngineVersionsError::unhandled(Box::new(Error::new( ErrorKind::Other, "describe_db_engine_versions error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); let scenario = AuroraScenario::new(mock_rds); let versions_map = scenario.get_engines().await; assert_matches!( versions_map, Err(ScenarioError { message, context: _ }) if message == "Failed to retrieve DB Engine Versions" ); } #[tokio::test] async fn test_scenario_get_instance_classes() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster_parameter_group() .return_once(|_, _, _| { Ok(CreateDbClusterParameterGroupOutput::builder() .db_cluster_parameter_group(DbClusterParameterGroup::builder().build()) .build()) }); mock_rds .expect_describe_orderable_db_instance_options() .with(eq("aurora-mysql"), eq("aurora-mysql8.0")) .return_once(|_, _| { Ok(vec![ OrderableDbInstanceOption::builder() .db_instance_class("t1") .storage_type("aurora") .build(), OrderableDbInstanceOption::builder() .db_instance_class("t1") .storage_type("aurora-iopt1") .build(), OrderableDbInstanceOption::builder() .db_instance_class("t2") .storage_type("aurora") .build(), OrderableDbInstanceOption::builder() .db_instance_class("t3") .storage_type("aurora") .build(), ]) }); let mut scenario = AuroraScenario::new(mock_rds); scenario .set_engine("aurora-mysql", "aurora-mysql8.0") .await .expect("set engine"); let instance_classes = scenario.get_instance_classes().await; assert_eq!( instance_classes, Ok(vec!["t1".into(), "t2".into(), "t3".into()]) ); } #[tokio::test] async fn test_scenario_get_instance_classes_error() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_describe_orderable_db_instance_options() .with(eq("aurora-mysql"), eq("aurora-mysql8.0")) .return_once(|_, _| { Err(SdkError::service_error( DescribeOrderableDBInstanceOptionsError::unhandled(Box::new(Error::new( ErrorKind::Other, "describe_orderable_db_instance_options_error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_family = Some("aurora-mysql".into()); scenario.engine_version = Some("aurora-mysql8.0".into()); let instance_classes = scenario.get_instance_classes().await; assert_matches!( instance_classes, Err(ScenarioError {message, context: _}) if message == "Could not get available instance classes" ); } #[tokio::test] async fn test_scenario_get_cluster() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_describe_db_clusters() .with(eq("RustSDKCodeExamplesDBCluster")) .return_once(|_| { Ok(DescribeDbClustersOutput::builder() .db_clusters(DbCluster::builder().build()) .build()) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.db_cluster_identifier = Some("RustSDKCodeExamplesDBCluster".into()); let cluster = scenario.get_cluster().await; assert!(cluster.is_ok()); } #[tokio::test] async fn test_scenario_get_cluster_missing_cluster() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster_parameter_group() .return_once(|_, _, _| { Ok(CreateDbClusterParameterGroupOutput::builder() .db_cluster_parameter_group(DbClusterParameterGroup::builder().build()) .build()) }); mock_rds .expect_describe_db_clusters() .with(eq("RustSDKCodeExamplesDBCluster")) .return_once(|_| Ok(DescribeDbClustersOutput::builder().build())); let mut scenario = AuroraScenario::new(mock_rds); scenario.db_cluster_identifier = Some("RustSDKCodeExamplesDBCluster".into()); let cluster = scenario.get_cluster().await; assert_matches!(cluster, Err(ScenarioError { message, context: _ }) if message == "Did not find the cluster"); } #[tokio::test] async fn test_scenario_get_cluster_error() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster_parameter_group() .return_once(|_, _, _| { Ok(CreateDbClusterParameterGroupOutput::builder() .db_cluster_parameter_group(DbClusterParameterGroup::builder().build()) .build()) }); mock_rds .expect_describe_db_clusters() .with(eq("RustSDKCodeExamplesDBCluster")) .return_once(|_| { Err(SdkError::service_error( DescribeDBClustersError::unhandled(Box::new(Error::new( ErrorKind::Other, "describe_db_clusters_error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.db_cluster_identifier = Some("RustSDKCodeExamplesDBCluster".into()); let cluster = scenario.get_cluster().await; assert_matches!(cluster, Err(ScenarioError { message, context: _ }) if message == "Failed to get cluster"); } #[tokio::test] async fn test_scenario_connection_string() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_describe_db_clusters() .with(eq("RustSDKCodeExamplesDBCluster")) .return_once(|_| { Ok(DescribeDbClustersOutput::builder() .db_clusters( DbCluster::builder() .endpoint("test_endpoint") .port(3306) .master_username("test_username") .build(), ) .build()) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.db_cluster_identifier = Some("RustSDKCodeExamplesDBCluster".into()); let connection_string = scenario.connection_string().await; assert_eq!( connection_string, Ok("mysql -h test_endpoint -P 3306 -u test_username -p".into()) ); } #[tokio::test] async fn test_scenario_cluster_parameters() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_describe_db_cluster_parameters() .with(eq("RustSDKCodeExamplesDBParameterGroup")) .return_once(|_| { Ok(vec![DescribeDbClusterParametersOutput::builder() .parameters(Parameter::builder().parameter_name("a").build()) .parameters(Parameter::builder().parameter_name("b").build()) .parameters( Parameter::builder() .parameter_name("auto_increment_offset") .build(), ) .parameters(Parameter::builder().parameter_name("c").build()) .parameters( Parameter::builder() .parameter_name("auto_increment_increment") .build(), ) .parameters(Parameter::builder().parameter_name("d").build()) .build()]) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.db_cluster_identifier = Some("RustSDKCodeExamplesDBCluster".into()); let params = scenario.cluster_parameters().await.expect("cluster params"); let names: Vec = params.into_iter().map(|p| p.name).collect(); assert_eq!( names, vec!["auto_increment_offset", "auto_increment_increment"] ); } #[tokio::test] async fn test_scenario_cluster_parameters_error() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_describe_db_cluster_parameters() .with(eq("RustSDKCodeExamplesDBParameterGroup")) .return_once(|_| { Err(SdkError::service_error( DescribeDBClusterParametersError::unhandled(Box::new(Error::new( ErrorKind::Other, "describe_db_cluster_parameters_error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.db_cluster_identifier = Some("RustSDKCodeExamplesDBCluster".into()); let params = scenario.cluster_parameters().await; assert_matches!(params, Err(ScenarioError { message, context: _ }) if message == "Failed to retrieve parameters for RustSDKCodeExamplesDBParameterGroup"); } #[tokio::test] async fn test_scenario_update_auto_increment() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_modify_db_cluster_parameter_group() .withf(|name, params| { assert_eq!(name, "RustSDKCodeExamplesDBParameterGroup"); assert_eq!( params, &vec![ Parameter::builder() .parameter_name("auto_increment_offset") .parameter_value("10") .apply_method(aws_sdk_rds::types::ApplyMethod::Immediate) .build(), Parameter::builder() .parameter_name("auto_increment_increment") .parameter_value("20") .apply_method(aws_sdk_rds::types::ApplyMethod::Immediate) .build(), ] ); true }) .return_once(|_, _| Ok(ModifyDbClusterParameterGroupOutput::builder().build())); let scenario = AuroraScenario::new(mock_rds); scenario .update_auto_increment(10, 20) .await .expect("update auto increment"); } #[tokio::test] async fn test_scenario_update_auto_increment_error() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_modify_db_cluster_parameter_group() .return_once(|_, _| { Err(SdkError::service_error( ModifyDBClusterParameterGroupError::unhandled(Box::new(Error::new( ErrorKind::Other, "modify_db_cluster_parameter_group_error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); let scenario = AuroraScenario::new(mock_rds); let update = scenario.update_auto_increment(10, 20).await; assert_matches!(update, Err(ScenarioError { message, context: _}) if message == "Failed to modify cluster parameter group"); } #[tokio::test] async fn test_start_cluster_and_instance() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .withf(|id, params, engine, version, username, password| { assert_eq!(id, "RustSDKCodeExamplesDBCluster"); assert_eq!(params, "RustSDKCodeExamplesDBParameterGroup"); assert_eq!(engine, "aurora-mysql"); assert_eq!(version, "aurora-mysql8.0"); assert_eq!(username, "test username"); assert_eq!(password.expose_secret(), "test password"); true }) .return_once(|id, _, _, _, _, _| { Ok(CreateDbClusterOutput::builder() .db_cluster(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds .expect_create_db_instance() .withf(|cluster, name, class, engine| { assert_eq!(cluster, "RustSDKCodeExamplesDBCluster"); assert_eq!(name, "RustSDKCodeExamplesDBInstance"); assert_eq!(class, "m5.large"); assert_eq!(engine, "aurora-mysql"); true }) .return_once(|cluster, name, class, _| { Ok(CreateDbInstanceOutput::builder() .db_instance( DbInstance::builder() .db_cluster_identifier(cluster) .db_instance_identifier(name) .db_instance_class(class) .build(), ) .build()) }); mock_rds .expect_describe_db_clusters() .with(eq("RustSDKCodeExamplesDBCluster")) .return_once(|id| { Ok(DescribeDbClustersOutput::builder() .db_clusters(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds .expect_describe_db_instance() .with(eq("RustSDKCodeExamplesDBInstance")) .return_once(|name| { Ok(DescribeDbInstancesOutput::builder() .db_instances( DbInstance::builder() .db_instance_identifier(name) .db_instance_status("Available") .build(), ) .build()) }); mock_rds .expect_describe_db_cluster_endpoints() .with(eq("RustSDKCodeExamplesDBCluster")) .return_once(|_| { Ok(DescribeDbClusterEndpointsOutput::builder() .db_cluster_endpoints(DbClusterEndpoint::builder().status("available").build()) .build()) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); tokio::time::pause(); let assertions = tokio::spawn(async move { let create = scenario.start_cluster_and_instance().await; assert!(create.is_ok()); assert!(scenario .password .replace(SecretString::new("BAD SECRET".into())) .unwrap() .expose_secret() .is_empty()); assert_eq!( scenario.db_cluster_identifier, Some("RustSDKCodeExamplesDBCluster".into()) ); }); tokio::time::advance(Duration::from_secs(1)).await; tokio::time::resume(); let _ = assertions.await; } #[tokio::test] async fn test_start_cluster_and_instance_cluster_create_error() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .return_once(|_, _, _, _, _, _| { Err(SdkError::service_error( CreateDBClusterError::unhandled(Box::new(Error::new( ErrorKind::Other, "create db cluster error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); let create = scenario.start_cluster_and_instance().await; assert_matches!(create, Err(ScenarioError { message, context: _}) if message == "Failed to create DB Cluster with cluster group") } #[tokio::test] async fn test_start_cluster_and_instance_cluster_create_missing_id() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .return_once(|_, _, _, _, _, _| { Ok(CreateDbClusterOutput::builder() .db_cluster(DbCluster::builder().build()) .build()) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); let create = scenario.start_cluster_and_instance().await; assert_matches!(create, Err(ScenarioError { message, context:_ }) if message == "Created DB Cluster missing Identifier"); } #[tokio::test] async fn test_start_cluster_and_instance_instance_create_error() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .withf(|id, params, engine, version, username, password| { assert_eq!(id, "RustSDKCodeExamplesDBCluster"); assert_eq!(params, "RustSDKCodeExamplesDBParameterGroup"); assert_eq!(engine, "aurora-mysql"); assert_eq!(version, "aurora-mysql8.0"); assert_eq!(username, "test username"); assert_eq!(password.expose_secret(), "test password"); true }) .return_once(|id, _, _, _, _, _| { Ok(CreateDbClusterOutput::builder() .db_cluster(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds .expect_create_db_instance() .return_once(|_, _, _, _| { Err(SdkError::service_error( CreateDBInstanceError::unhandled(Box::new(Error::new( ErrorKind::Other, "create db instance error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); let create = scenario.start_cluster_and_instance().await; assert_matches!(create, Err(ScenarioError { message, context: _ }) if message == "Failed to create Instance in DB Cluster") } #[tokio::test] async fn test_start_cluster_and_instance_wait_hiccup() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .withf(|id, params, engine, version, username, password| { assert_eq!(id, "RustSDKCodeExamplesDBCluster"); assert_eq!(params, "RustSDKCodeExamplesDBParameterGroup"); assert_eq!(engine, "aurora-mysql"); assert_eq!(version, "aurora-mysql8.0"); assert_eq!(username, "test username"); assert_eq!(password.expose_secret(), "test password"); true }) .return_once(|id, _, _, _, _, _| { Ok(CreateDbClusterOutput::builder() .db_cluster(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds .expect_create_db_instance() .withf(|cluster, name, class, engine| { assert_eq!(cluster, "RustSDKCodeExamplesDBCluster"); assert_eq!(name, "RustSDKCodeExamplesDBInstance"); assert_eq!(class, "m5.large"); assert_eq!(engine, "aurora-mysql"); true }) .return_once(|cluster, name, class, _| { Ok(CreateDbInstanceOutput::builder() .db_instance( DbInstance::builder() .db_cluster_identifier(cluster) .db_instance_identifier(name) .db_instance_class(class) .build(), ) .build()) }); mock_rds .expect_describe_db_clusters() .with(eq("RustSDKCodeExamplesDBCluster")) .times(1) .returning(|_| { Err(SdkError::service_error( DescribeDBClustersError::unhandled(Box::new(Error::new( ErrorKind::Other, "describe cluster error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }) .with(eq("RustSDKCodeExamplesDBCluster")) .times(1) .returning(|id| { Ok(DescribeDbClustersOutput::builder() .db_clusters(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds.expect_describe_db_instance().return_once(|name| { Ok(DescribeDbInstancesOutput::builder() .db_instances( DbInstance::builder() .db_instance_identifier(name) .db_instance_status("Available") .build(), ) .build()) }); mock_rds .expect_describe_db_cluster_endpoints() .return_once(|_| { Ok(DescribeDbClusterEndpointsOutput::builder() .db_cluster_endpoints(DbClusterEndpoint::builder().status("available").build()) .build()) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); tokio::time::pause(); let assertions = tokio::spawn(async move { let create = scenario.start_cluster_and_instance().await; assert!(create.is_ok()); }); tokio::time::advance(Duration::from_secs(1)).await; tokio::time::advance(Duration::from_secs(1)).await; tokio::time::resume(); let _ = assertions.await; } #[tokio::test] async fn test_scenario_clean_up() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_delete_db_instance() .with(eq("MockInstance")) .return_once(|_| Ok(DeleteDbInstanceOutput::builder().build())); mock_rds .expect_describe_db_instances() .with() .times(1) .returning(|| { Ok(DescribeDbInstancesOutput::builder() .db_instances( DbInstance::builder() .db_cluster_identifier("MockCluster") .db_instance_status("Deleting") .build(), ) .build()) }) .with() .times(1) .returning(|| Ok(DescribeDbInstancesOutput::builder().build())); mock_rds .expect_delete_db_cluster() .with(eq("MockCluster")) .return_once(|_| Ok(DeleteDbClusterOutput::builder().build())); mock_rds .expect_describe_db_clusters() .with(eq("MockCluster")) .times(1) .returning(|id| { Ok(DescribeDbClustersOutput::builder() .db_clusters( DbCluster::builder() .db_cluster_identifier(id) .status("Deleting") .build(), ) .build()) }) .with(eq("MockCluster")) .times(1) .returning(|_| Ok(DescribeDbClustersOutput::builder().build())); mock_rds .expect_delete_db_cluster_parameter_group() .with(eq("MockParamGroup")) .return_once(|_| Ok(DeleteDbClusterParameterGroupOutput::builder().build())); let mut scenario = AuroraScenario::new(mock_rds); scenario.db_cluster_identifier = Some(String::from("MockCluster")); scenario.db_instance_identifier = Some(String::from("MockInstance")); scenario.db_cluster_parameter_group = Some( DbClusterParameterGroup::builder() .db_cluster_parameter_group_name("MockParamGroup") .build(), ); tokio::time::pause(); let assertions = tokio::spawn(async move { let clean_up = scenario.clean_up().await; assert!(clean_up.is_ok()); }); tokio::time::advance(Duration::from_secs(1)).await; // Wait for first Describe Instances tokio::time::advance(Duration::from_secs(1)).await; // Wait for second Describe Instances tokio::time::advance(Duration::from_secs(1)).await; // Wait for first Describe Cluster tokio::time::advance(Duration::from_secs(1)).await; // Wait for second Describe Cluster tokio::time::resume(); let _ = assertions.await; } #[tokio::test] async fn test_scenario_clean_up_errors() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_delete_db_instance() .with(eq("MockInstance")) .return_once(|_| Ok(DeleteDbInstanceOutput::builder().build())); mock_rds .expect_describe_db_instances() .with() .times(1) .returning(|| { Ok(DescribeDbInstancesOutput::builder() .db_instances( DbInstance::builder() .db_cluster_identifier("MockCluster") .db_instance_status("Deleting") .build(), ) .build()) }) .with() .times(1) .returning(|| { Err(SdkError::service_error( DescribeDBInstancesError::unhandled(Box::new(Error::new( ErrorKind::Other, "describe db instances error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); mock_rds .expect_delete_db_cluster() .with(eq("MockCluster")) .return_once(|_| Ok(DeleteDbClusterOutput::builder().build())); mock_rds .expect_describe_db_clusters() .with(eq("MockCluster")) .times(1) .returning(|id| { Ok(DescribeDbClustersOutput::builder() .db_clusters( DbCluster::builder() .db_cluster_identifier(id) .status("Deleting") .build(), ) .build()) }) .with(eq("MockCluster")) .times(1) .returning(|_| { Err(SdkError::service_error( DescribeDBClustersError::unhandled(Box::new(Error::new( ErrorKind::Other, "describe db clusters error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); mock_rds .expect_delete_db_cluster_parameter_group() .with(eq("MockParamGroup")) .return_once(|_| Ok(DeleteDbClusterParameterGroupOutput::builder().build())); let mut scenario = AuroraScenario::new(mock_rds); scenario.db_cluster_identifier = Some(String::from("MockCluster")); scenario.db_instance_identifier = Some(String::from("MockInstance")); scenario.db_cluster_parameter_group = Some( DbClusterParameterGroup::builder() .db_cluster_parameter_group_name("MockParamGroup") .build(), ); tokio::time::pause(); let assertions = tokio::spawn(async move { let clean_up = scenario.clean_up().await; assert!(clean_up.is_err()); let errs = clean_up.unwrap_err(); assert_eq!(errs.len(), 2); assert_matches!(errs.first(), Some(ScenarioError {message, context: _}) if message == "Failed to check instance state during deletion"); assert_matches!(errs.get(1), Some(ScenarioError {message, context: _}) if message == "Failed to check cluster state during deletion"); }); tokio::time::advance(Duration::from_secs(1)).await; // Wait for first Describe Instances tokio::time::advance(Duration::from_secs(1)).await; // Wait for second Describe Instances tokio::time::advance(Duration::from_secs(1)).await; // Wait for first Describe Cluster tokio::time::advance(Duration::from_secs(1)).await; // Wait for second Describe Cluster tokio::time::resume(); let _ = assertions.await; } #[tokio::test] async fn test_scenario_snapshot() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_snapshot_cluster() .with(eq("MockCluster"), eq("MockCluster_MockSnapshot")) .times(1) .return_once(|_, _| { Ok(CreateDbClusterSnapshotOutput::builder() .db_cluster_snapshot( DbClusterSnapshot::builder() .db_cluster_identifier("MockCluster") .db_cluster_snapshot_identifier("MockCluster_MockSnapshot") .build(), ) .build()) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.db_cluster_identifier = Some("MockCluster".into()); let create_snapshot = scenario.snapshot("MockSnapshot").await; assert!(create_snapshot.is_ok()); } #[tokio::test] async fn test_scenario_snapshot_error() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_snapshot_cluster() .with(eq("MockCluster"), eq("MockCluster_MockSnapshot")) .times(1) .return_once(|_, _| { Err(SdkError::service_error( CreateDBClusterSnapshotError::unhandled(Box::new(Error::new( ErrorKind::Other, "create snapshot error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.db_cluster_identifier = Some("MockCluster".into()); let create_snapshot = scenario.snapshot("MockSnapshot").await; assert_matches!(create_snapshot, Err(ScenarioError { message, context: _}) if message == "Failed to create snapshot"); } #[tokio::test] async fn test_scenario_snapshot_invalid() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_snapshot_cluster() .with(eq("MockCluster"), eq("MockCluster_MockSnapshot")) .times(1) .return_once(|_, _| Ok(CreateDbClusterSnapshotOutput::builder().build())); let mut scenario = AuroraScenario::new(mock_rds); scenario.db_cluster_identifier = Some("MockCluster".into()); let create_snapshot = scenario.snapshot("MockSnapshot").await; assert_matches!(create_snapshot, Err(ScenarioError { message, context: _}) if message == "Missing Snapshot"); } ``` ユーザーが一部の決定を下せるように inquirer を使用してシナリオを最初から最後まで実行するためのバイナリ。 ``` use std::fmt::Display; use anyhow::anyhow; use aurora_code_examples::{ aurora_scenario::{AuroraScenario, ScenarioError}, rds::Rds as RdsClient, }; use aws_sdk_rds::Client; use inquire::{validator::StringValidator, CustomUserError}; use secrecy::SecretString; use tracing::warn; #[derive(Default, Debug)] struct Warnings(Vec); impl Warnings { fn new() -> Self { Warnings(Vec::with_capacity(5)) } fn push(&mut self, warning: &str, error: ScenarioError) { let formatted = format!("{warning}: {error}"); warn!("{formatted}"); self.0.push(formatted); } fn is_empty(&self) -> bool { self.0.is_empty() } } impl Display for Warnings { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { writeln!(f, "Warnings:")?; for warning in &self.0 { writeln!(f, "{: >4}- {warning}", "")?; } Ok(()) } } fn select( prompt: &str, choices: Vec, error_message: &str, ) -> Result { inquire::Select::new(prompt, choices) .prompt() .map_err(|error| anyhow!("{error_message}: {error}")) } // Prepare the Aurora Scenario. Prompt for several settings that are optional to the Scenario, but that the user should choose for the demo. // This includes the engine, engine version, and instance class. async fn prepare_scenario(rds: RdsClient) -> Result { let mut scenario = AuroraScenario::new(rds); // Get available engine families for Aurora MySql. rds.DescribeDbEngineVersions(Engine='aurora-mysql') and build a set of the 'DBParameterGroupFamily' field values. I get {aurora-mysql8.0, aurora-mysql5.7}. let available_engines = scenario.get_engines().await; if let Err(error) = available_engines { return Err(anyhow!("Failed to get available engines: {}", error)); } let available_engines = available_engines.unwrap(); // Select an engine family and create a custom DB cluster parameter group. rds.CreateDbClusterParameterGroup(DBParameterGroupFamily='aurora-mysql8.0') let engine = select( "Select an Aurora engine family", available_engines.keys().cloned().collect::>(), "Invalid engine selection", )?; let version = select( format!("Select an Aurora engine version for {engine}").as_str(), available_engines.get(&engine).cloned().unwrap_or_default(), "Invalid engine version selection", )?; let set_engine = scenario.set_engine(engine.as_str(), version.as_str()).await; if let Err(error) = set_engine { return Err(anyhow!("Could not set engine: {}", error)); } let instance_classes = scenario.get_instance_classes().await; match instance_classes { Ok(classes) => { let instance_class = select( format!("Select an Aurora instance class for {engine}").as_str(), classes, "Invalid instance class selection", )?; scenario.set_instance_class(Some(instance_class)) } Err(err) => return Err(anyhow!("Failed to get instance classes for engine: {err}")), } Ok(scenario) } // Prepare the cluster, creating a custom parameter group overriding some group parameters based on user input. async fn prepare_cluster(scenario: &mut AuroraScenario, warnings: &mut Warnings) -> Result<(), ()> { show_parameters(scenario, warnings).await; let offset = prompt_number_or_default(warnings, "auto_increment_offset", 5); let increment = prompt_number_or_default(warnings, "auto_increment_increment", 3); // Modify both the auto_increment_offset and auto_increment_increment parameters in one call in the custom parameter group. Set their ParameterValue fields to a new allowable value. rds.ModifyDbClusterParameterGroup. let update_auto_increment = scenario.update_auto_increment(offset, increment).await; if let Err(error) = update_auto_increment { warnings.push("Failed to update auto increment", error); return Err(()); } // Get and display the updated parameters. Specify Source of 'user' to get just the modified parameters. rds.DescribeDbClusterParameters(Source='user') show_parameters(scenario, warnings).await; let username = inquire::Text::new("Username for the database (default 'testuser')") .with_default("testuser") .with_initial_value("testuser") .prompt(); if let Err(error) = username { warnings.push( "Failed to get username, using default", ScenarioError::with(format!("Error from inquirer: {error}")), ); return Err(()); } let username = username.unwrap(); let password = inquire::Text::new("Password for the database (minimum 8 characters)") .with_validator(|i: &str| { if i.len() >= 8 { Ok(inquire::validator::Validation::Valid) } else { Ok(inquire::validator::Validation::Invalid( "Password must be at least 8 characters".into(), )) } }) .prompt(); let password: Option = match password { Ok(password) => Some(SecretString::from(password)), Err(error) => { warnings.push( "Failed to get password, using none (and not starting a DB)", ScenarioError::with(format!("Error from inquirer: {error}")), ); return Err(()); } }; scenario.set_login(Some(username), password); Ok(()) } // Start a single instance in the cluster, async fn run_instance(scenario: &mut AuroraScenario) -> Result<(), ScenarioError> { // Create an Aurora DB cluster database cluster that contains a MySql database and uses the parameter group you created. // Create a database instance in the cluster. // Wait for DB instance to be ready. Call rds.DescribeDbInstances and check for DBInstanceStatus == 'available'. scenario.start_cluster_and_instance().await?; let connection_string = scenario.connection_string().await?; println!("Database ready: {connection_string}",); let _ = inquire::Text::new("Use the database with the connection string. When you're finished, press enter key to continue.").prompt(); // Create a snapshot of the DB cluster. rds.CreateDbClusterSnapshot. // Wait for the snapshot to create. rds.DescribeDbClusterSnapshots until Status == 'available'. let snapshot_name = inquire::Text::new("Provide a name for the snapshot") .prompt() .unwrap_or(String::from("ScenarioRun")); let snapshot = scenario.snapshot(snapshot_name.as_str()).await?; println!( "Snapshot is available: {}", snapshot.db_cluster_snapshot_arn().unwrap_or("Missing ARN") ); Ok(()) } #[tokio::main] async fn main() -> Result<(), anyhow::Error> { tracing_subscriber::fmt::init(); let sdk_config = aws_config::from_env().load().await; let client = Client::new(&sdk_config); let rds = RdsClient::new(client); let mut scenario = prepare_scenario(rds).await?; // At this point, the scenario has things in AWS and needs to get cleaned up. let mut warnings = Warnings::new(); if prepare_cluster(&mut scenario, &mut warnings).await.is_ok() { println!("Configured database cluster, starting an instance."); if let Err(err) = run_instance(&mut scenario).await { warnings.push("Problem running instance", err); } } // Clean up the instance, cluster, and parameter group, waiting for the instance and cluster to delete before moving on. let clean_up = scenario.clean_up().await; if let Err(errors) = clean_up { for error in errors { warnings.push("Problem cleaning up scenario", error); } } if warnings.is_empty() { Ok(()) } else { println!("There were problems running the scenario:"); println!("{warnings}"); Err(anyhow!("There were problems running the scenario")) } } #[derive(Clone)] struct U8Validator {} impl StringValidator for U8Validator { fn validate(&self, input: &str) -> Result { if input.parse::().is_err() { Ok(inquire::validator::Validation::Invalid( "Can't parse input as number".into(), )) } else { Ok(inquire::validator::Validation::Valid) } } } async fn show_parameters(scenario: &AuroraScenario, warnings: &mut Warnings) { let parameters = scenario.cluster_parameters().await; match parameters { Ok(parameters) => { println!("Current parameters"); for parameter in parameters { println!("\t{parameter}"); } } Err(error) => warnings.push("Could not find cluster parameters", error), } } fn prompt_number_or_default(warnings: &mut Warnings, name: &str, default: u8) -> u8 { let input = inquire::Text::new(format!("Updated {name}:").as_str()) .with_validator(U8Validator {}) .prompt(); match input { Ok(increment) => match increment.parse::() { Ok(increment) => increment, Err(error) => { warnings.push( format!("Invalid updated {name} (using {default} instead)").as_str(), ScenarioError::with(format!("{error}")), ); default } }, Err(error) => { warnings.push( format!("Invalid updated {name} (using {default} instead)").as_str(), ScenarioError::with(format!("{error}")), ); default } } } ``` テストのオートモッキングを可能にする Amazon RDS サービスのラッパー。 ``` use aws_sdk_rds::{ error::SdkError, operation::{ create_db_cluster::{CreateDBClusterError, CreateDbClusterOutput}, create_db_cluster_parameter_group::CreateDBClusterParameterGroupError, create_db_cluster_parameter_group::CreateDbClusterParameterGroupOutput, create_db_cluster_snapshot::{CreateDBClusterSnapshotError, CreateDbClusterSnapshotOutput}, create_db_instance::{CreateDBInstanceError, CreateDbInstanceOutput}, delete_db_cluster::{DeleteDBClusterError, DeleteDbClusterOutput}, delete_db_cluster_parameter_group::{ DeleteDBClusterParameterGroupError, DeleteDbClusterParameterGroupOutput, }, delete_db_instance::{DeleteDBInstanceError, DeleteDbInstanceOutput}, describe_db_cluster_endpoints::{ DescribeDBClusterEndpointsError, DescribeDbClusterEndpointsOutput, }, describe_db_cluster_parameters::{ DescribeDBClusterParametersError, DescribeDbClusterParametersOutput, }, describe_db_clusters::{DescribeDBClustersError, DescribeDbClustersOutput}, describe_db_engine_versions::{ DescribeDBEngineVersionsError, DescribeDbEngineVersionsOutput, }, describe_db_instances::{DescribeDBInstancesError, DescribeDbInstancesOutput}, describe_orderable_db_instance_options::DescribeOrderableDBInstanceOptionsError, modify_db_cluster_parameter_group::{ ModifyDBClusterParameterGroupError, ModifyDbClusterParameterGroupOutput, }, }, types::{OrderableDbInstanceOption, Parameter}, Client as RdsClient, }; use secrecy::{ExposeSecret, SecretString}; #[cfg(test)] use mockall::automock; #[cfg(test)] pub use MockRdsImpl as Rds; #[cfg(not(test))] pub use RdsImpl as Rds; pub struct RdsImpl { pub inner: RdsClient, } #[cfg_attr(test, automock)] impl RdsImpl { pub fn new(inner: RdsClient) -> Self { RdsImpl { inner } } pub async fn describe_db_engine_versions( &self, engine: &str, ) -> Result> { self.inner .describe_db_engine_versions() .engine(engine) .send() .await } pub async fn describe_orderable_db_instance_options( &self, engine: &str, engine_version: &str, ) -> Result, SdkError> { self.inner .describe_orderable_db_instance_options() .engine(engine) .engine_version(engine_version) .into_paginator() .items() .send() .try_collect() .await } pub async fn create_db_cluster_parameter_group( &self, name: &str, description: &str, family: &str, ) -> Result> { self.inner .create_db_cluster_parameter_group() .db_cluster_parameter_group_name(name) .description(description) .db_parameter_group_family(family) .send() .await } pub async fn describe_db_clusters( &self, id: &str, ) -> Result> { self.inner .describe_db_clusters() .db_cluster_identifier(id) .send() .await } pub async fn describe_db_cluster_parameters( &self, name: &str, ) -> Result, SdkError> { self.inner .describe_db_cluster_parameters() .db_cluster_parameter_group_name(name) .into_paginator() .send() .try_collect() .await } pub async fn modify_db_cluster_parameter_group( &self, name: &str, parameters: Vec, ) -> Result> { self.inner .modify_db_cluster_parameter_group() .db_cluster_parameter_group_name(name) .set_parameters(Some(parameters)) .send() .await } pub async fn create_db_cluster( &self, name: &str, parameter_group: &str, engine: &str, version: &str, username: &str, password: SecretString, ) -> Result> { self.inner .create_db_cluster() .db_cluster_identifier(name) .db_cluster_parameter_group_name(parameter_group) .engine(engine) .engine_version(version) .master_username(username) .master_user_password(password.expose_secret()) .send() .await } pub async fn create_db_instance( &self, cluster_name: &str, instance_name: &str, instance_class: &str, engine: &str, ) -> Result> { self.inner .create_db_instance() .db_cluster_identifier(cluster_name) .db_instance_identifier(instance_name) .db_instance_class(instance_class) .engine(engine) .send() .await } pub async fn describe_db_instance( &self, instance_identifier: &str, ) -> Result> { self.inner .describe_db_instances() .db_instance_identifier(instance_identifier) .send() .await } pub async fn snapshot_cluster( &self, db_cluster_identifier: &str, snapshot_name: &str, ) -> Result> { self.inner .create_db_cluster_snapshot() .db_cluster_identifier(db_cluster_identifier) .db_cluster_snapshot_identifier(snapshot_name) .send() .await } pub async fn describe_db_instances( &self, ) -> Result> { self.inner.describe_db_instances().send().await } pub async fn describe_db_cluster_endpoints( &self, cluster_identifier: &str, ) -> Result> { self.inner .describe_db_cluster_endpoints() .db_cluster_identifier(cluster_identifier) .send() .await } pub async fn delete_db_instance( &self, instance_identifier: &str, ) -> Result> { self.inner .delete_db_instance() .db_instance_identifier(instance_identifier) .skip_final_snapshot(true) .send() .await } pub async fn delete_db_cluster( &self, cluster_identifier: &str, ) -> Result> { self.inner .delete_db_cluster() .db_cluster_identifier(cluster_identifier) .skip_final_snapshot(true) .send() .await } pub async fn delete_db_cluster_parameter_group( &self, name: &str, ) -> Result> { self.inner .delete_db_cluster_parameter_group() .db_cluster_parameter_group_name(name) .send() .await } } ``` このシナリオで使用した依存関係を含む Cargo.toml。 ``` [package] name = "aurora-code-examples" authors = [ "David Souther ", ] edition = "2021" version = "0.1.0" # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html [dependencies] anyhow = "1.0.75" assert_matches = "1.5.0" aws-config = { version = "1.0.1", features = ["behavior-version-latest"] } aws-smithy-types = { version = "1.0.1" } aws-smithy-runtime-api = { version = "1.0.1" } aws-sdk-rds = { version = "1.3.0" } inquire = "0.6.2" mockall = "0.11.4" phf = { version = "0.11.2", features = ["std", "macros"] } sdk-examples-test-utils = { path = "../../test-utils" } secrecy = "0.8.0" tokio = { version = "1.20.1", features = ["full", "test-util"] } tracing = "0.1.37" tracing-subscriber = { version = "0.3.15", features = ["env-filter"] } ``` + API の詳細については、「*AWS SDK for Rust API リファレンス*」の以下のトピックを参照してください。 + [CreateDBCluster](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.create_db_cluster) + [CreateDBClusterParameterGroup](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.create_db_cluster_parameter_group) + [CreateDBClusterSnapshot](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.create_db_cluster_snapshot) + [CreateDBInstance](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.create_db_instance) + [DeleteDBCluster](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.delete_db_cluster) + [DeleteDBClusterParameterGroup](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.delete_db_cluster_parameter_group) + [DeleteDBInstance](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.delete_db_instance) + [DescribeDBClusterParameterGroups](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.describe_db_cluster_parameter_groups) + [DescribeDBClusterParameters](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.describe_db_cluster_parameters) + [DescribeDBClusterSnapshots](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.describe_db_cluster_snapshots) + [DescribeDBClusters](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.describe_db_clusters) + [DescribeDBEngineVersions](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.describe_db_engine_versions) + [DescribeDBInstances](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.describe_db_instances) + [DescribeOrderableDBInstanceOptions](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.describe_orderable_db_instance_options) + [ModifyDBClusterParameterGroup](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.modify_db_cluster_parameter_group) ------ # AWS SDKs を使用した Aurora のアクション次のコード例は、 AWS SDKs で個々の Aurora アクションを実行する方法を示しています。それぞれの例には、GitHub へのリンクがあり、そこにはコードの設定と実行に関する説明が記載されています。これらは Aurora API を呼び出すもので、コンテキスト内で実行する必要がある大規模なプログラムからのコード抜粋です。アクションは [AWS SDKsシナリオ](aurora_code_examples_scenarios.md) のコンテキスト内で確認できます。以下の例には、最も一般的に使用されるアクションのみ含まれています。詳細な一覧については、「[Amazon Aurora API Reference](https://docs.aws.amazon.com/AmazonRDS/latest/APIReference/Welcome.html)」(Amazon Aurora API リファレンス) を参照してください。 **Topics** + [`CreateDBCluster`](aurora_example_aurora_CreateDBCluster_section.md) + [`CreateDBClusterParameterGroup`](aurora_example_aurora_CreateDBClusterParameterGroup_section.md) + [`CreateDBClusterSnapshot`](aurora_example_aurora_CreateDBClusterSnapshot_section.md) + [`CreateDBInstance`](aurora_example_aurora_CreateDBInstance_section.md) + [`DeleteDBCluster`](aurora_example_aurora_DeleteDBCluster_section.md) + [`DeleteDBClusterParameterGroup`](aurora_example_aurora_DeleteDBClusterParameterGroup_section.md) + [`DeleteDBInstance`](aurora_example_aurora_DeleteDBInstance_section.md) + [`DescribeDBClusterParameterGroups`](aurora_example_aurora_DescribeDBClusterParameterGroups_section.md) + [`DescribeDBClusterParameters`](aurora_example_aurora_DescribeDBClusterParameters_section.md) + [`DescribeDBClusterSnapshots`](aurora_example_aurora_DescribeDBClusterSnapshots_section.md) + [`DescribeDBClusters`](aurora_example_aurora_DescribeDBClusters_section.md) + [`DescribeDBEngineVersions`](aurora_example_aurora_DescribeDBEngineVersions_section.md) + [`DescribeDBInstances`](aurora_example_aurora_DescribeDBInstances_section.md) + [`DescribeOrderableDBInstanceOptions`](aurora_example_aurora_DescribeOrderableDBInstanceOptions_section.md) + [`ModifyDBClusterParameterGroup`](aurora_example_aurora_ModifyDBClusterParameterGroup_section.md) # AWS SDK `CreateDBCluster`でを使用する次のサンプルコードは、`CreateDBCluster` を使用する方法を説明しています。アクション例は、より大きなプログラムからのコードの抜粋であり、コンテキスト内で実行する必要があります。次のコード例で、このアクションのコンテキストを確認できます。 + [基本を学ぶ](aurora_example_aurora_Scenario_GetStartedClusters_section.md) ------ #### [ .NET ] **SDK for .NET (v4)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/Aurora#code-examples)での設定と実行の方法を確認してください。 ``` ///

/// Create a new cluster and database. ///

/// The name of the new database. /// The identifier of the cluster. /// The name of the parameter group. /// The engine to use for the new cluster. /// The version of the engine to use. /// The admin username. /// The primary admin password. /// The cluster object. public async Task CreateDBClusterWithAdminAsync( string dbName, string clusterIdentifier, string parameterGroupName, string dbEngine, string dbEngineVersion, string adminName, string adminPassword) { var request = new CreateDBClusterRequest { DatabaseName = dbName, DBClusterIdentifier = clusterIdentifier, DBClusterParameterGroupName = parameterGroupName, Engine = dbEngine, EngineVersion = dbEngineVersion, MasterUsername = adminName, MasterUserPassword = adminPassword, }; var response = await _amazonRDS.CreateDBClusterAsync(request); return response.DBCluster; } ``` + API の詳細については、*AWS SDK for .NET API リファレンス*の「[CreateDBCluster](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/CreateDBCluster)」を参照してください。 ------ #### [ C\$1\$1 ] **SDK for C\$1\$1** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region (overrides config file). // clientConfig.region = "us-east-1"; Aws::RDS::RDSClient client(clientConfig); Aws::RDS::Model::CreateDBClusterRequest request; request.SetDBClusterIdentifier(DB_CLUSTER_IDENTIFIER); request.SetDBClusterParameterGroupName(CLUSTER_PARAMETER_GROUP_NAME); request.SetEngine(engineName); request.SetEngineVersion(engineVersionName); request.SetMasterUsername(administratorName); request.SetMasterUserPassword(administratorPassword); Aws::RDS::Model::CreateDBClusterOutcome outcome = client.CreateDBCluster(request); if (outcome.IsSuccess()) { std::cout << "The DB cluster creation has started." << std::endl; } else { std::cerr << "Error with Aurora::CreateDBCluster. " << outcome.GetError().GetMessage() << std::endl; cleanUpResources(CLUSTER_PARAMETER_GROUP_NAME, "", "", client); return false; } ``` + API の詳細については、*AWS SDK for C\$1\$1 API リファレンス*の「[CreateDBCluster](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/CreateDBCluster)」を参照してください。 ------ #### [ Go ] **SDK for Go V2** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/gov2/aurora#code-examples)での設定と実行の方法を確認してください。 ``` import ( "context" "errors" "log" "github.com/aws/aws-sdk-go-v2/aws" "github.com/aws/aws-sdk-go-v2/service/rds" "github.com/aws/aws-sdk-go-v2/service/rds/types" ) type DbClusters struct { AuroraClient *rds.Client } // CreateDbCluster creates a DB cluster that is configured to use the specified parameter group. // The newly created DB cluster contains a database that uses the specified engine and // engine version. func (clusters *DbClusters) CreateDbCluster(ctx context.Context, clusterName string, parameterGroupName string, dbName string, dbEngine string, dbEngineVersion string, adminName string, adminPassword string) ( *types.DBCluster, error) { output, err := clusters.AuroraClient.CreateDBCluster(ctx, &rds.CreateDBClusterInput{ DBClusterIdentifier: aws.String(clusterName), Engine: aws.String(dbEngine), DBClusterParameterGroupName: aws.String(parameterGroupName), DatabaseName: aws.String(dbName), EngineVersion: aws.String(dbEngineVersion), MasterUserPassword: aws.String(adminPassword), MasterUsername: aws.String(adminName), }) if err != nil { log.Printf("Couldn't create DB cluster %v: %v\n", clusterName, err) return nil, err } else { return output.DBCluster, err } } ``` + API の詳細については、*AWS SDK for Go API リファレンス*の「[CreateDBCluster](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.CreateDBCluster)」を参照してください。 ------ #### [ Java ] **SDK for Java 2.x** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/rds#code-examples)での設定と実行の方法を確認してください。 ``` public static String createDBCluster(RdsClient rdsClient, String dbParameterGroupFamily, String dbName, String dbClusterIdentifier, String userName, String password) { try { CreateDbClusterRequest clusterRequest = CreateDbClusterRequest.builder() .databaseName(dbName) .dbClusterIdentifier(dbClusterIdentifier) .dbClusterParameterGroupName(dbParameterGroupFamily) .engine("aurora-mysql") .masterUsername(userName) .masterUserPassword(password) .build(); CreateDbClusterResponse response = rdsClient.createDBCluster(clusterRequest); return response.dbCluster().dbClusterArn(); } catch (RdsException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } return ""; } ``` + API の詳細については、*AWS SDK for Java 2.x API リファレンス*の「[CreateDBCluster](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/CreateDBCluster)」を参照してください。 ------ #### [ Kotlin ] **SDK for Kotlin** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/rds#code-examples)での設定と実行の方法を確認してください。 ``` suspend fun createDBCluster( dbParameterGroupFamilyVal: String?, dbName: String?, dbClusterIdentifierVal: String?, userName: String?, password: String?, ): String? { val clusterRequest = CreateDbClusterRequest { databaseName = dbName dbClusterIdentifier = dbClusterIdentifierVal dbClusterParameterGroupName = dbParameterGroupFamilyVal engine = "aurora-mysql" masterUsername = userName masterUserPassword = password } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> val response = rdsClient.createDbCluster(clusterRequest) return response.dbCluster?.dbClusterArn } } ``` + API の詳細については、*AWS SDK for Kotlin API リファレンス*の「[CreateDBCluster](https://sdk.amazonaws.com/kotlin/api/latest/index.html)」を参照してください。 ------ #### [ Python ] **SDK for Python (Boto3)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` class AuroraWrapper: """Encapsulates Aurora DB cluster actions.""" def __init__(self, rds_client): """ :param rds_client: A Boto3 Amazon Relational Database Service (Amazon RDS) client. """ self.rds_client = rds_client @classmethod def from_client(cls): """ Instantiates this class from a Boto3 client. """ rds_client = boto3.client("rds") return cls(rds_client) def create_db_cluster( self, cluster_name, parameter_group_name, db_name, db_engine, db_engine_version, admin_name, admin_password, ): """ Creates a DB cluster that is configured to use the specified parameter group. The newly created DB cluster contains a database that uses the specified engine and engine version. :param cluster_name: The name of the DB cluster to create. :param parameter_group_name: The name of the parameter group to associate with the DB cluster. :param db_name: The name of the database to create. :param db_engine: The database engine of the database that is created, such as MySql. :param db_engine_version: The version of the database engine. :param admin_name: The user name of the database administrator. :param admin_password: The password of the database administrator. :return: The newly created DB cluster. """ try: response = self.rds_client.create_db_cluster( DatabaseName=db_name, DBClusterIdentifier=cluster_name, DBClusterParameterGroupName=parameter_group_name, Engine=db_engine, EngineVersion=db_engine_version, MasterUsername=admin_name, MasterUserPassword=admin_password, ) cluster = response["DBCluster"] except ClientError as err: logger.error( "Couldn't create database %s. Here's why: %s: %s", db_name, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return cluster ``` + API の詳細については、*AWS SDK for Python (Boto3) API リファレンス*の「[CreateDBCluster](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/CreateDBCluster)」を参照してください。 ------ #### [ Rust ] **SDK for Rust** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/rustv1/examples/aurora#code-examples)での設定と実行の方法を確認してください。 ``` // Get a list of allowed engine versions. rds.DescribeDbEngineVersions(Engine='aurora-mysql', DBParameterGroupFamily=) // Create an Aurora DB cluster database cluster that contains a MySql database and uses the parameter group you created. // Wait for DB cluster to be ready. Call rds.DescribeDBClusters and check for Status == 'available'. // Get a list of instance classes available for the selected engine and engine version. rds.DescribeOrderableDbInstanceOptions(Engine='mysql', EngineVersion=). // Create a database instance in the cluster. // Wait for DB instance to be ready. Call rds.DescribeDbInstances and check for DBInstanceStatus == 'available'. pub async fn start_cluster_and_instance(&mut self) -> Result<(), ScenarioError> { if self.password.is_none() { return Err(ScenarioError::with( "Must set Secret Password before starting a cluster", )); } let create_db_cluster = self .rds .create_db_cluster( DB_CLUSTER_IDENTIFIER, DB_CLUSTER_PARAMETER_GROUP_NAME, DB_ENGINE, self.engine_version.as_deref().expect("engine version"), self.username.as_deref().expect("username"), self.password .replace(SecretString::new("".to_string())) .expect("password"), ) .await; if let Err(err) = create_db_cluster { return Err(ScenarioError::new( "Failed to create DB Cluster with cluster group", &err, )); } self.db_cluster_identifier = create_db_cluster .unwrap() .db_cluster .and_then(|c| c.db_cluster_identifier); if self.db_cluster_identifier.is_none() { return Err(ScenarioError::with("Created DB Cluster missing Identifier")); } info!( "Started a db cluster: {}", self.db_cluster_identifier .as_deref() .unwrap_or("Missing ARN") ); let create_db_instance = self .rds .create_db_instance( self.db_cluster_identifier.as_deref().expect("cluster name"), DB_INSTANCE_IDENTIFIER, self.instance_class.as_deref().expect("instance class"), DB_ENGINE, ) .await; if let Err(err) = create_db_instance { return Err(ScenarioError::new( "Failed to create Instance in DB Cluster", &err, )); } self.db_instance_identifier = create_db_instance .unwrap() .db_instance .and_then(|i| i.db_instance_identifier); // Cluster creation can take up to 20 minutes to become available let cluster_max_wait = Duration::from_secs(20 * 60); let waiter = Waiter::builder().max(cluster_max_wait).build(); while waiter.sleep().await.is_ok() { let cluster = self .rds .describe_db_clusters( self.db_cluster_identifier .as_deref() .expect("cluster identifier"), ) .await; if let Err(err) = cluster { warn!(?err, "Failed to describe cluster while waiting for ready"); continue; } let instance = self .rds .describe_db_instance( self.db_instance_identifier .as_deref() .expect("instance identifier"), ) .await; if let Err(err) = instance { return Err(ScenarioError::new( "Failed to find instance for cluster", &err, )); } let instances_available = instance .unwrap() .db_instances() .iter() .all(|instance| instance.db_instance_status() == Some("Available")); let endpoints = self .rds .describe_db_cluster_endpoints( self.db_cluster_identifier .as_deref() .expect("cluster identifier"), ) .await; if let Err(err) = endpoints { return Err(ScenarioError::new( "Failed to find endpoint for cluster", &err, )); } let endpoints_available = endpoints .unwrap() .db_cluster_endpoints() .iter() .all(|endpoint| endpoint.status() == Some("available")); if instances_available && endpoints_available { return Ok(()); } } Err(ScenarioError::with("timed out waiting for cluster")) } pub async fn create_db_cluster( &self, name: &str, parameter_group: &str, engine: &str, version: &str, username: &str, password: SecretString, ) -> Result> { self.inner .create_db_cluster() .db_cluster_identifier(name) .db_cluster_parameter_group_name(parameter_group) .engine(engine) .engine_version(version) .master_username(username) .master_user_password(password.expose_secret()) .send() .await } #[tokio::test] async fn test_start_cluster_and_instance() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .withf(|id, params, engine, version, username, password| { assert_eq!(id, "RustSDKCodeExamplesDBCluster"); assert_eq!(params, "RustSDKCodeExamplesDBParameterGroup"); assert_eq!(engine, "aurora-mysql"); assert_eq!(version, "aurora-mysql8.0"); assert_eq!(username, "test username"); assert_eq!(password.expose_secret(), "test password"); true }) .return_once(|id, _, _, _, _, _| { Ok(CreateDbClusterOutput::builder() .db_cluster(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds .expect_create_db_instance() .withf(|cluster, name, class, engine| { assert_eq!(cluster, "RustSDKCodeExamplesDBCluster"); assert_eq!(name, "RustSDKCodeExamplesDBInstance"); assert_eq!(class, "m5.large"); assert_eq!(engine, "aurora-mysql"); true }) .return_once(|cluster, name, class, _| { Ok(CreateDbInstanceOutput::builder() .db_instance( DbInstance::builder() .db_cluster_identifier(cluster) .db_instance_identifier(name) .db_instance_class(class) .build(), ) .build()) }); mock_rds .expect_describe_db_clusters() .with(eq("RustSDKCodeExamplesDBCluster")) .return_once(|id| { Ok(DescribeDbClustersOutput::builder() .db_clusters(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds .expect_describe_db_instance() .with(eq("RustSDKCodeExamplesDBInstance")) .return_once(|name| { Ok(DescribeDbInstancesOutput::builder() .db_instances( DbInstance::builder() .db_instance_identifier(name) .db_instance_status("Available") .build(), ) .build()) }); mock_rds .expect_describe_db_cluster_endpoints() .with(eq("RustSDKCodeExamplesDBCluster")) .return_once(|_| { Ok(DescribeDbClusterEndpointsOutput::builder() .db_cluster_endpoints(DbClusterEndpoint::builder().status("available").build()) .build()) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); tokio::time::pause(); let assertions = tokio::spawn(async move { let create = scenario.start_cluster_and_instance().await; assert!(create.is_ok()); assert!(scenario .password .replace(SecretString::new("BAD SECRET".into())) .unwrap() .expose_secret() .is_empty()); assert_eq!( scenario.db_cluster_identifier, Some("RustSDKCodeExamplesDBCluster".into()) ); }); tokio::time::advance(Duration::from_secs(1)).await; tokio::time::resume(); let _ = assertions.await; } #[tokio::test] async fn test_start_cluster_and_instance_cluster_create_error() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .return_once(|_, _, _, _, _, _| { Err(SdkError::service_error( CreateDBClusterError::unhandled(Box::new(Error::new( ErrorKind::Other, "create db cluster error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); let create = scenario.start_cluster_and_instance().await; assert_matches!(create, Err(ScenarioError { message, context: _}) if message == "Failed to create DB Cluster with cluster group") } #[tokio::test] async fn test_start_cluster_and_instance_cluster_create_missing_id() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .return_once(|_, _, _, _, _, _| { Ok(CreateDbClusterOutput::builder() .db_cluster(DbCluster::builder().build()) .build()) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); let create = scenario.start_cluster_and_instance().await; assert_matches!(create, Err(ScenarioError { message, context:_ }) if message == "Created DB Cluster missing Identifier"); } #[tokio::test] async fn test_start_cluster_and_instance_instance_create_error() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .withf(|id, params, engine, version, username, password| { assert_eq!(id, "RustSDKCodeExamplesDBCluster"); assert_eq!(params, "RustSDKCodeExamplesDBParameterGroup"); assert_eq!(engine, "aurora-mysql"); assert_eq!(version, "aurora-mysql8.0"); assert_eq!(username, "test username"); assert_eq!(password.expose_secret(), "test password"); true }) .return_once(|id, _, _, _, _, _| { Ok(CreateDbClusterOutput::builder() .db_cluster(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds .expect_create_db_instance() .return_once(|_, _, _, _| { Err(SdkError::service_error( CreateDBInstanceError::unhandled(Box::new(Error::new( ErrorKind::Other, "create db instance error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); let create = scenario.start_cluster_and_instance().await; assert_matches!(create, Err(ScenarioError { message, context: _ }) if message == "Failed to create Instance in DB Cluster") } #[tokio::test] async fn test_start_cluster_and_instance_wait_hiccup() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .withf(|id, params, engine, version, username, password| { assert_eq!(id, "RustSDKCodeExamplesDBCluster"); assert_eq!(params, "RustSDKCodeExamplesDBParameterGroup"); assert_eq!(engine, "aurora-mysql"); assert_eq!(version, "aurora-mysql8.0"); assert_eq!(username, "test username"); assert_eq!(password.expose_secret(), "test password"); true }) .return_once(|id, _, _, _, _, _| { Ok(CreateDbClusterOutput::builder() .db_cluster(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds .expect_create_db_instance() .withf(|cluster, name, class, engine| { assert_eq!(cluster, "RustSDKCodeExamplesDBCluster"); assert_eq!(name, "RustSDKCodeExamplesDBInstance"); assert_eq!(class, "m5.large"); assert_eq!(engine, "aurora-mysql"); true }) .return_once(|cluster, name, class, _| { Ok(CreateDbInstanceOutput::builder() .db_instance( DbInstance::builder() .db_cluster_identifier(cluster) .db_instance_identifier(name) .db_instance_class(class) .build(), ) .build()) }); mock_rds .expect_describe_db_clusters() .with(eq("RustSDKCodeExamplesDBCluster")) .times(1) .returning(|_| { Err(SdkError::service_error( DescribeDBClustersError::unhandled(Box::new(Error::new( ErrorKind::Other, "describe cluster error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }) .with(eq("RustSDKCodeExamplesDBCluster")) .times(1) .returning(|id| { Ok(DescribeDbClustersOutput::builder() .db_clusters(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds.expect_describe_db_instance().return_once(|name| { Ok(DescribeDbInstancesOutput::builder() .db_instances( DbInstance::builder() .db_instance_identifier(name) .db_instance_status("Available") .build(), ) .build()) }); mock_rds .expect_describe_db_cluster_endpoints() .return_once(|_| { Ok(DescribeDbClusterEndpointsOutput::builder() .db_cluster_endpoints(DbClusterEndpoint::builder().status("available").build()) .build()) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); tokio::time::pause(); let assertions = tokio::spawn(async move { let create = scenario.start_cluster_and_instance().await; assert!(create.is_ok()); }); tokio::time::advance(Duration::from_secs(1)).await; tokio::time::advance(Duration::from_secs(1)).await; tokio::time::resume(); let _ = assertions.await; } ``` + API の詳細については、*AWS SDK for Rust API リファレンス*の「[CreateDBCluster](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.create_db_cluster)」を参照してください。 ------ # AWS SDK `CreateDBClusterParameterGroup`でを使用する次のサンプルコードは、`CreateDBClusterParameterGroup` を使用する方法を説明しています。アクション例は、より大きなプログラムからのコードの抜粋であり、コンテキスト内で実行する必要があります。次のコード例で、このアクションのコンテキストを確認できます。 + [基本を学ぶ](aurora_example_aurora_Scenario_GetStartedClusters_section.md) ------ #### [ .NET ] **SDK for .NET (v4)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/Aurora#code-examples)での設定と実行の方法を確認してください。 ``` ///

/// Create a custom cluster parameter group. ///

/// The family of the parameter group. /// The name for the new parameter group. /// A description for the new parameter group. /// The new parameter group object. public async Task CreateCustomClusterParameterGroupAsync( string parameterGroupFamily, string groupName, string description) { var request = new CreateDBClusterParameterGroupRequest { DBParameterGroupFamily = parameterGroupFamily, DBClusterParameterGroupName = groupName, Description = description, }; var response = await _amazonRDS.CreateDBClusterParameterGroupAsync(request); return response.DBClusterParameterGroup; } ``` + API の詳細については、*AWS SDK for .NET API リファレンス*の「[CreateDBClusterParameterGroup](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/CreateDBClusterParameterGroup)」を参照してください。 ------ #### [ C\$1\$1 ] **SDK for C\$1\$1** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region (overrides config file). // clientConfig.region = "us-east-1"; Aws::RDS::RDSClient client(clientConfig); Aws::RDS::Model::CreateDBClusterParameterGroupRequest request; request.SetDBClusterParameterGroupName(CLUSTER_PARAMETER_GROUP_NAME); request.SetDBParameterGroupFamily(dbParameterGroupFamily); request.SetDescription("Example cluster parameter group."); Aws::RDS::Model::CreateDBClusterParameterGroupOutcome outcome = client.CreateDBClusterParameterGroup(request); if (outcome.IsSuccess()) { std::cout << "The DB cluster parameter group was successfully created." << std::endl; } else { std::cerr << "Error with Aurora::CreateDBClusterParameterGroup. " << outcome.GetError().GetMessage() << std::endl; return false; } ``` + API の詳細については、*AWS SDK for C\$1\$1 API リファレンス*の「[CreateDBClusterParameterGroup](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/CreateDBClusterParameterGroup)」を参照してください。 ------ #### [ Go ] **SDK for Go V2** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/gov2/aurora#code-examples)での設定と実行の方法を確認してください。 ``` import ( "context" "errors" "log" "github.com/aws/aws-sdk-go-v2/aws" "github.com/aws/aws-sdk-go-v2/service/rds" "github.com/aws/aws-sdk-go-v2/service/rds/types" ) type DbClusters struct { AuroraClient *rds.Client } // CreateParameterGroup creates a DB cluster parameter group that is based on the specified // parameter group family. func (clusters *DbClusters) CreateParameterGroup( ctx context.Context, parameterGroupName string, parameterGroupFamily string, description string) ( *types.DBClusterParameterGroup, error) { output, err := clusters.AuroraClient.CreateDBClusterParameterGroup(ctx, &rds.CreateDBClusterParameterGroupInput{ DBClusterParameterGroupName: aws.String(parameterGroupName), DBParameterGroupFamily: aws.String(parameterGroupFamily), Description: aws.String(description), }) if err != nil { log.Printf("Couldn't create parameter group %v: %v\n", parameterGroupName, err) return nil, err } else { return output.DBClusterParameterGroup, err } } ``` + API の詳細については、*AWS SDK for Go API リファレンス*の「[CreateDBClusterParameterGroup](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.CreateDBClusterParameterGroup)」を参照してください。 ------ #### [ Java ] **SDK for Java 2.x** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/rds#code-examples)での設定と実行の方法を確認してください。 ``` public static void createDBClusterParameterGroup(RdsClient rdsClient, String dbClusterGroupName, String dbParameterGroupFamily) { try { CreateDbClusterParameterGroupRequest groupRequest = CreateDbClusterParameterGroupRequest.builder() .dbClusterParameterGroupName(dbClusterGroupName) .dbParameterGroupFamily(dbParameterGroupFamily) .description("Created by using the AWS SDK for Java") .build(); CreateDbClusterParameterGroupResponse response = rdsClient.createDBClusterParameterGroup(groupRequest); System.out.println("The group name is " + response.dbClusterParameterGroup().dbClusterParameterGroupName()); } catch (RdsException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } } ``` + API の詳細については、*AWS SDK for Java 2.x API リファレンス*の「[CreateDBClusterParameterGroup](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/CreateDBClusterParameterGroup)」を参照してください。 ------ #### [ Kotlin ] **SDK for Kotlin** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/rds#code-examples)での設定と実行の方法を確認してください。 ``` suspend fun createDBClusterParameterGroup( dbClusterGroupNameVal: String?, dbParameterGroupFamilyVal: String?, ) { val groupRequest = CreateDbClusterParameterGroupRequest { dbClusterParameterGroupName = dbClusterGroupNameVal dbParameterGroupFamily = dbParameterGroupFamilyVal description = "Created by using the AWS SDK for Kotlin" } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> val response = rdsClient.createDbClusterParameterGroup(groupRequest) println("The group name is ${response.dbClusterParameterGroup?.dbClusterParameterGroupName}") } } ``` + API の詳細については、*AWS SDK for Kotlin API リファレンス*の「[CreateDBClusterParameterGroup](https://sdk.amazonaws.com/kotlin/api/latest/index.html)」を参照してください。 ------ #### [ Python ] **SDK for Python (Boto3)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` class AuroraWrapper: """Encapsulates Aurora DB cluster actions.""" def __init__(self, rds_client): """ :param rds_client: A Boto3 Amazon Relational Database Service (Amazon RDS) client. """ self.rds_client = rds_client @classmethod def from_client(cls): """ Instantiates this class from a Boto3 client. """ rds_client = boto3.client("rds") return cls(rds_client) def create_parameter_group( self, parameter_group_name, parameter_group_family, description ): """ Creates a DB cluster parameter group that is based on the specified parameter group family. :param parameter_group_name: The name of the newly created parameter group. :param parameter_group_family: The family that is used as the basis of the new parameter group. :param description: A description given to the parameter group. :return: Data about the newly created parameter group. """ try: response = self.rds_client.create_db_cluster_parameter_group( DBClusterParameterGroupName=parameter_group_name, DBParameterGroupFamily=parameter_group_family, Description=description, ) except ClientError as err: logger.error( "Couldn't create parameter group %s. Here's why: %s: %s", parameter_group_name, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return response ``` + API の詳細については、*AWS SDK for Python (Boto3) API リファレンス*の「[CreateDBClusterParameterGroup](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/CreateDBClusterParameterGroup)」を参照してください。 ------ #### [ Rust ] **SDK for Rust** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/rustv1/examples/aurora#code-examples)での設定と実行の方法を確認してください。 ``` // Select an engine family and create a custom DB cluster parameter group. rds.CreateDbClusterParameterGroup(DBParameterGroupFamily='aurora-mysql8.0') pub async fn set_engine(&mut self, engine: &str, version: &str) -> Result<(), ScenarioError> { self.engine_family = Some(engine.to_string()); self.engine_version = Some(version.to_string()); let create_db_cluster_parameter_group = self .rds .create_db_cluster_parameter_group( DB_CLUSTER_PARAMETER_GROUP_NAME, DB_CLUSTER_PARAMETER_GROUP_DESCRIPTION, engine, ) .await; match create_db_cluster_parameter_group { Ok(CreateDbClusterParameterGroupOutput { db_cluster_parameter_group: None, .. }) => { return Err(ScenarioError::with( "CreateDBClusterParameterGroup had empty response", )); } Err(error) => { if error.code() == Some("DBParameterGroupAlreadyExists") { info!("Cluster Parameter Group already exists, nothing to do"); } else { return Err(ScenarioError::new( "Could not create Cluster Parameter Group", &error, )); } } _ => { info!("Created Cluster Parameter Group"); } } Ok(()) } pub async fn create_db_cluster_parameter_group( &self, name: &str, description: &str, family: &str, ) -> Result> { self.inner .create_db_cluster_parameter_group() .db_cluster_parameter_group_name(name) .description(description) .db_parameter_group_family(family) .send() .await } #[tokio::test] async fn test_scenario_set_engine() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster_parameter_group() .with( eq("RustSDKCodeExamplesDBParameterGroup"), eq("Parameter Group created by Rust SDK Code Example"), eq("aurora-mysql"), ) .return_once(|_, _, _| { Ok(CreateDbClusterParameterGroupOutput::builder() .db_cluster_parameter_group(DbClusterParameterGroup::builder().build()) .build()) }); let mut scenario = AuroraScenario::new(mock_rds); let set_engine = scenario.set_engine("aurora-mysql", "aurora-mysql8.0").await; assert_eq!(set_engine, Ok(())); assert_eq!(Some("aurora-mysql"), scenario.engine_family.as_deref()); assert_eq!(Some("aurora-mysql8.0"), scenario.engine_version.as_deref()); } #[tokio::test] async fn test_scenario_set_engine_not_create() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster_parameter_group() .with( eq("RustSDKCodeExamplesDBParameterGroup"), eq("Parameter Group created by Rust SDK Code Example"), eq("aurora-mysql"), ) .return_once(|_, _, _| Ok(CreateDbClusterParameterGroupOutput::builder().build())); let mut scenario = AuroraScenario::new(mock_rds); let set_engine = scenario.set_engine("aurora-mysql", "aurora-mysql8.0").await; assert!(set_engine.is_err()); } #[tokio::test] async fn test_scenario_set_engine_param_group_exists() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster_parameter_group() .withf(|_, _, _| true) .return_once(|_, _, _| { Err(SdkError::service_error( CreateDBClusterParameterGroupError::DbParameterGroupAlreadyExistsFault( DbParameterGroupAlreadyExistsFault::builder().build(), ), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); let mut scenario = AuroraScenario::new(mock_rds); let set_engine = scenario.set_engine("aurora-mysql", "aurora-mysql8.0").await; assert!(set_engine.is_err()); } ``` + API の詳細については、*AWS SDK for Rust API リファレンス*の「[CreateDBClusterParameterGroup](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.create_db_cluster_parameter_group)」を参照してください。 ------ #### [ SAP ABAP ] **SDK for SAP ABAP** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/rds#code-examples)での設定と実行の方法を確認してください。 ``` TRY. DATA(lo_output) = lo_rds->createdbclusterparamgroup( iv_dbclusterparamgroupname = iv_param_group_name iv_dbparametergroupfamily = iv_param_group_family iv_description = iv_description ). oo_result = lo_output->get_dbclusterparametergroup( ). CATCH /aws1/cx_rdsdbparmgralrexfault. " Re-raise exception - parameter group already exists RAISE EXCEPTION TYPE /aws1/cx_rdsdbparmgralrexfault. CATCH /aws1/cx_rdsdbprmgrquotaexcd00. " Re-raise exception - quota exceeded RAISE EXCEPTION TYPE /aws1/cx_rdsdbprmgrquotaexcd00. ENDTRY. ``` + API の詳細については、「*AWS SDK for SAP ABAP API リファレンス*」の「[CreateDBClusterParameterGroup](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html)」を参照してください。 ------ # AWS SDK `CreateDBClusterSnapshot`でを使用する次のサンプルコードは、`CreateDBClusterSnapshot` を使用する方法を説明しています。アクション例は、より大きなプログラムからのコードの抜粋であり、コンテキスト内で実行する必要があります。次のコード例で、このアクションのコンテキストを確認できます。 + [基本を学ぶ](aurora_example_aurora_Scenario_GetStartedClusters_section.md) ------ #### [ .NET ] **SDK for .NET (v4)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/Aurora#code-examples)での設定と実行の方法を確認してください。 ``` ///

/// Create a snapshot of a cluster. ///

/// DB cluster identifier. /// Identifier for the snapshot. /// DB snapshot object. public async Task CreateClusterSnapshotByIdentifierAsync(string dbClusterIdentifier, string snapshotIdentifier) { var response = await _amazonRDS.CreateDBClusterSnapshotAsync( new CreateDBClusterSnapshotRequest() { DBClusterIdentifier = dbClusterIdentifier, DBClusterSnapshotIdentifier = snapshotIdentifier, }); return response.DBClusterSnapshot; } ``` + API の詳細については、*AWS SDK for .NET API リファレンス*の「[CreateDBClusterSnapshot](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/CreateDBClusterSnapshot)」を参照してください。 ------ #### [ C\$1\$1 ] **SDK for C\$1\$1** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region (overrides config file). // clientConfig.region = "us-east-1"; Aws::RDS::RDSClient client(clientConfig); Aws::RDS::Model::CreateDBClusterSnapshotRequest request; request.SetDBClusterIdentifier(DB_CLUSTER_IDENTIFIER); request.SetDBClusterSnapshotIdentifier(snapshotID); Aws::RDS::Model::CreateDBClusterSnapshotOutcome outcome = client.CreateDBClusterSnapshot(request); if (outcome.IsSuccess()) { std::cout << "Snapshot creation has started." << std::endl; } else { std::cerr << "Error with Aurora::CreateDBClusterSnapshot. " << outcome.GetError().GetMessage() << std::endl; cleanUpResources(CLUSTER_PARAMETER_GROUP_NAME, DB_CLUSTER_IDENTIFIER, DB_INSTANCE_IDENTIFIER, client); return false; } ``` + API の詳細については、「*AWS SDK for C\$1\$1 API リファレンス*」の「[CreateDBClusterSnapshot](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/CreateDBClusterSnapshot)」を参照してください。 ------ #### [ Go ] **SDK for Go V2** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/gov2/aurora#code-examples)での設定と実行の方法を確認してください。 ``` import ( "context" "errors" "log" "github.com/aws/aws-sdk-go-v2/aws" "github.com/aws/aws-sdk-go-v2/service/rds" "github.com/aws/aws-sdk-go-v2/service/rds/types" ) type DbClusters struct { AuroraClient *rds.Client } // CreateClusterSnapshot creates a snapshot of a DB cluster. func (clusters *DbClusters) CreateClusterSnapshot(ctx context.Context, clusterName string, snapshotName string) ( *types.DBClusterSnapshot, error) { output, err := clusters.AuroraClient.CreateDBClusterSnapshot(ctx, &rds.CreateDBClusterSnapshotInput{ DBClusterIdentifier: aws.String(clusterName), DBClusterSnapshotIdentifier: aws.String(snapshotName), }) if err != nil { log.Printf("Couldn't create snapshot %v: %v\n", snapshotName, err) return nil, err } else { return output.DBClusterSnapshot, nil } } ``` + API の詳細については、*AWS SDK for Go API リファレンス*の「[CreateDBClusterSnapshot](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.CreateDBClusterSnapshot)」を参照してください。 ------ #### [ Java ] **SDK for Java 2.x** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/rds#code-examples)での設定と実行の方法を確認してください。 ``` public static void createDBClusterSnapshot(RdsClient rdsClient, String dbInstanceClusterIdentifier, String dbSnapshotIdentifier) { try { CreateDbClusterSnapshotRequest snapshotRequest = CreateDbClusterSnapshotRequest.builder() .dbClusterIdentifier(dbInstanceClusterIdentifier) .dbClusterSnapshotIdentifier(dbSnapshotIdentifier) .build(); CreateDbClusterSnapshotResponse response = rdsClient.createDBClusterSnapshot(snapshotRequest); System.out.println("The Snapshot ARN is " + response.dbClusterSnapshot().dbClusterSnapshotArn()); } catch (RdsException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } } ``` + API の詳細については、*AWS SDK for Java 2.x API リファレンス*の「[CreateDBClusterSnapshot](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/CreateDBClusterSnapshot)」を参照してください。 ------ #### [ Kotlin ] **SDK for Kotlin** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/rds#code-examples)での設定と実行の方法を確認してください。 ``` suspend fun createDBClusterSnapshot( dbInstanceClusterIdentifier: String?, dbSnapshotIdentifier: String?, ) { val snapshotRequest = CreateDbClusterSnapshotRequest { dbClusterIdentifier = dbInstanceClusterIdentifier dbClusterSnapshotIdentifier = dbSnapshotIdentifier } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> val response = rdsClient.createDbClusterSnapshot(snapshotRequest) println("The Snapshot ARN is ${response.dbClusterSnapshot?.dbClusterSnapshotArn}") } } ``` + API の詳細については、*AWS SDK for Kotlin API リファレンス*の「[CreateDBClusterSnapshot](https://sdk.amazonaws.com/kotlin/api/latest/index.html)」を参照してください。 ------ #### [ Python ] **SDK for Python (Boto3)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` class AuroraWrapper: """Encapsulates Aurora DB cluster actions.""" def __init__(self, rds_client): """ :param rds_client: A Boto3 Amazon Relational Database Service (Amazon RDS) client. """ self.rds_client = rds_client @classmethod def from_client(cls): """ Instantiates this class from a Boto3 client. """ rds_client = boto3.client("rds") return cls(rds_client) def create_cluster_snapshot(self, snapshot_id, cluster_id): """ Creates a snapshot of a DB cluster. :param snapshot_id: The ID to give the created snapshot. :param cluster_id: The DB cluster to snapshot. :return: Data about the newly created snapshot. """ try: response = self.rds_client.create_db_cluster_snapshot( DBClusterSnapshotIdentifier=snapshot_id, DBClusterIdentifier=cluster_id ) snapshot = response["DBClusterSnapshot"] except ClientError as err: logger.error( "Couldn't create snapshot of %s. Here's why: %s: %s", cluster_id, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return snapshot ``` + API の詳細については、*AWS SDK for Python (Boto3) API リファレンス*の「[CreateDBClusterSnapshot](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/CreateDBClusterSnapshot)」を参照してください。 ------ #### [ Rust ] **SDK for Rust** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/rustv1/examples/aurora#code-examples)での設定と実行の方法を確認してください。 ``` // Get a list of allowed engine versions. rds.DescribeDbEngineVersions(Engine='aurora-mysql', DBParameterGroupFamily=) // Create an Aurora DB cluster database cluster that contains a MySql database and uses the parameter group you created. // Wait for DB cluster to be ready. Call rds.DescribeDBClusters and check for Status == 'available'. // Get a list of instance classes available for the selected engine and engine version. rds.DescribeOrderableDbInstanceOptions(Engine='mysql', EngineVersion=). // Create a database instance in the cluster. // Wait for DB instance to be ready. Call rds.DescribeDbInstances and check for DBInstanceStatus == 'available'. pub async fn start_cluster_and_instance(&mut self) -> Result<(), ScenarioError> { if self.password.is_none() { return Err(ScenarioError::with( "Must set Secret Password before starting a cluster", )); } let create_db_cluster = self .rds .create_db_cluster( DB_CLUSTER_IDENTIFIER, DB_CLUSTER_PARAMETER_GROUP_NAME, DB_ENGINE, self.engine_version.as_deref().expect("engine version"), self.username.as_deref().expect("username"), self.password .replace(SecretString::new("".to_string())) .expect("password"), ) .await; if let Err(err) = create_db_cluster { return Err(ScenarioError::new( "Failed to create DB Cluster with cluster group", &err, )); } self.db_cluster_identifier = create_db_cluster .unwrap() .db_cluster .and_then(|c| c.db_cluster_identifier); if self.db_cluster_identifier.is_none() { return Err(ScenarioError::with("Created DB Cluster missing Identifier")); } info!( "Started a db cluster: {}", self.db_cluster_identifier .as_deref() .unwrap_or("Missing ARN") ); let create_db_instance = self .rds .create_db_instance( self.db_cluster_identifier.as_deref().expect("cluster name"), DB_INSTANCE_IDENTIFIER, self.instance_class.as_deref().expect("instance class"), DB_ENGINE, ) .await; if let Err(err) = create_db_instance { return Err(ScenarioError::new( "Failed to create Instance in DB Cluster", &err, )); } self.db_instance_identifier = create_db_instance .unwrap() .db_instance .and_then(|i| i.db_instance_identifier); // Cluster creation can take up to 20 minutes to become available let cluster_max_wait = Duration::from_secs(20 * 60); let waiter = Waiter::builder().max(cluster_max_wait).build(); while waiter.sleep().await.is_ok() { let cluster = self .rds .describe_db_clusters( self.db_cluster_identifier .as_deref() .expect("cluster identifier"), ) .await; if let Err(err) = cluster { warn!(?err, "Failed to describe cluster while waiting for ready"); continue; } let instance = self .rds .describe_db_instance( self.db_instance_identifier .as_deref() .expect("instance identifier"), ) .await; if let Err(err) = instance { return Err(ScenarioError::new( "Failed to find instance for cluster", &err, )); } let instances_available = instance .unwrap() .db_instances() .iter() .all(|instance| instance.db_instance_status() == Some("Available")); let endpoints = self .rds .describe_db_cluster_endpoints( self.db_cluster_identifier .as_deref() .expect("cluster identifier"), ) .await; if let Err(err) = endpoints { return Err(ScenarioError::new( "Failed to find endpoint for cluster", &err, )); } let endpoints_available = endpoints .unwrap() .db_cluster_endpoints() .iter() .all(|endpoint| endpoint.status() == Some("available")); if instances_available && endpoints_available { return Ok(()); } } Err(ScenarioError::with("timed out waiting for cluster")) } pub async fn snapshot_cluster( &self, db_cluster_identifier: &str, snapshot_name: &str, ) -> Result> { self.inner .create_db_cluster_snapshot() .db_cluster_identifier(db_cluster_identifier) .db_cluster_snapshot_identifier(snapshot_name) .send() .await } #[tokio::test] async fn test_start_cluster_and_instance() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .withf(|id, params, engine, version, username, password| { assert_eq!(id, "RustSDKCodeExamplesDBCluster"); assert_eq!(params, "RustSDKCodeExamplesDBParameterGroup"); assert_eq!(engine, "aurora-mysql"); assert_eq!(version, "aurora-mysql8.0"); assert_eq!(username, "test username"); assert_eq!(password.expose_secret(), "test password"); true }) .return_once(|id, _, _, _, _, _| { Ok(CreateDbClusterOutput::builder() .db_cluster(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds .expect_create_db_instance() .withf(|cluster, name, class, engine| { assert_eq!(cluster, "RustSDKCodeExamplesDBCluster"); assert_eq!(name, "RustSDKCodeExamplesDBInstance"); assert_eq!(class, "m5.large"); assert_eq!(engine, "aurora-mysql"); true }) .return_once(|cluster, name, class, _| { Ok(CreateDbInstanceOutput::builder() .db_instance( DbInstance::builder() .db_cluster_identifier(cluster) .db_instance_identifier(name) .db_instance_class(class) .build(), ) .build()) }); mock_rds .expect_describe_db_clusters() .with(eq("RustSDKCodeExamplesDBCluster")) .return_once(|id| { Ok(DescribeDbClustersOutput::builder() .db_clusters(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds .expect_describe_db_instance() .with(eq("RustSDKCodeExamplesDBInstance")) .return_once(|name| { Ok(DescribeDbInstancesOutput::builder() .db_instances( DbInstance::builder() .db_instance_identifier(name) .db_instance_status("Available") .build(), ) .build()) }); mock_rds .expect_describe_db_cluster_endpoints() .with(eq("RustSDKCodeExamplesDBCluster")) .return_once(|_| { Ok(DescribeDbClusterEndpointsOutput::builder() .db_cluster_endpoints(DbClusterEndpoint::builder().status("available").build()) .build()) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); tokio::time::pause(); let assertions = tokio::spawn(async move { let create = scenario.start_cluster_and_instance().await; assert!(create.is_ok()); assert!(scenario .password .replace(SecretString::new("BAD SECRET".into())) .unwrap() .expose_secret() .is_empty()); assert_eq!( scenario.db_cluster_identifier, Some("RustSDKCodeExamplesDBCluster".into()) ); }); tokio::time::advance(Duration::from_secs(1)).await; tokio::time::resume(); let _ = assertions.await; } #[tokio::test] async fn test_start_cluster_and_instance_cluster_create_error() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .return_once(|_, _, _, _, _, _| { Err(SdkError::service_error( CreateDBClusterError::unhandled(Box::new(Error::new( ErrorKind::Other, "create db cluster error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); let create = scenario.start_cluster_and_instance().await; assert_matches!(create, Err(ScenarioError { message, context: _}) if message == "Failed to create DB Cluster with cluster group") } #[tokio::test] async fn test_start_cluster_and_instance_cluster_create_missing_id() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .return_once(|_, _, _, _, _, _| { Ok(CreateDbClusterOutput::builder() .db_cluster(DbCluster::builder().build()) .build()) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); let create = scenario.start_cluster_and_instance().await; assert_matches!(create, Err(ScenarioError { message, context:_ }) if message == "Created DB Cluster missing Identifier"); } #[tokio::test] async fn test_start_cluster_and_instance_instance_create_error() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .withf(|id, params, engine, version, username, password| { assert_eq!(id, "RustSDKCodeExamplesDBCluster"); assert_eq!(params, "RustSDKCodeExamplesDBParameterGroup"); assert_eq!(engine, "aurora-mysql"); assert_eq!(version, "aurora-mysql8.0"); assert_eq!(username, "test username"); assert_eq!(password.expose_secret(), "test password"); true }) .return_once(|id, _, _, _, _, _| { Ok(CreateDbClusterOutput::builder() .db_cluster(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds .expect_create_db_instance() .return_once(|_, _, _, _| { Err(SdkError::service_error( CreateDBInstanceError::unhandled(Box::new(Error::new( ErrorKind::Other, "create db instance error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); let create = scenario.start_cluster_and_instance().await; assert_matches!(create, Err(ScenarioError { message, context: _ }) if message == "Failed to create Instance in DB Cluster") } #[tokio::test] async fn test_start_cluster_and_instance_wait_hiccup() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .withf(|id, params, engine, version, username, password| { assert_eq!(id, "RustSDKCodeExamplesDBCluster"); assert_eq!(params, "RustSDKCodeExamplesDBParameterGroup"); assert_eq!(engine, "aurora-mysql"); assert_eq!(version, "aurora-mysql8.0"); assert_eq!(username, "test username"); assert_eq!(password.expose_secret(), "test password"); true }) .return_once(|id, _, _, _, _, _| { Ok(CreateDbClusterOutput::builder() .db_cluster(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds .expect_create_db_instance() .withf(|cluster, name, class, engine| { assert_eq!(cluster, "RustSDKCodeExamplesDBCluster"); assert_eq!(name, "RustSDKCodeExamplesDBInstance"); assert_eq!(class, "m5.large"); assert_eq!(engine, "aurora-mysql"); true }) .return_once(|cluster, name, class, _| { Ok(CreateDbInstanceOutput::builder() .db_instance( DbInstance::builder() .db_cluster_identifier(cluster) .db_instance_identifier(name) .db_instance_class(class) .build(), ) .build()) }); mock_rds .expect_describe_db_clusters() .with(eq("RustSDKCodeExamplesDBCluster")) .times(1) .returning(|_| { Err(SdkError::service_error( DescribeDBClustersError::unhandled(Box::new(Error::new( ErrorKind::Other, "describe cluster error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }) .with(eq("RustSDKCodeExamplesDBCluster")) .times(1) .returning(|id| { Ok(DescribeDbClustersOutput::builder() .db_clusters(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds.expect_describe_db_instance().return_once(|name| { Ok(DescribeDbInstancesOutput::builder() .db_instances( DbInstance::builder() .db_instance_identifier(name) .db_instance_status("Available") .build(), ) .build()) }); mock_rds .expect_describe_db_cluster_endpoints() .return_once(|_| { Ok(DescribeDbClusterEndpointsOutput::builder() .db_cluster_endpoints(DbClusterEndpoint::builder().status("available").build()) .build()) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); tokio::time::pause(); let assertions = tokio::spawn(async move { let create = scenario.start_cluster_and_instance().await; assert!(create.is_ok()); }); tokio::time::advance(Duration::from_secs(1)).await; tokio::time::advance(Duration::from_secs(1)).await; tokio::time::resume(); let _ = assertions.await; } ``` + API の詳細については、*AWS SDK for Rust API リファレンス*の「[CreateDBClusterSnapshot](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.create_db_cluster_snapshot)」を参照してください。 ------ # AWS SDK `CreateDBInstance`でを使用する次のサンプルコードは、`CreateDBInstance` を使用する方法を説明しています。アクション例は、より大きなプログラムからのコードの抜粋であり、コンテキスト内で実行する必要があります。次のコード例で、このアクションのコンテキストを確認できます。 + [基本を学ぶ](aurora_example_aurora_Scenario_GetStartedClusters_section.md) ------ #### [ .NET ] **SDK for .NET (v4)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/Aurora#code-examples)での設定と実行の方法を確認してください。 ``` ///

/// DB instance identifier. /// DB cluster identifier. /// The engine for the DB instance. /// Version for the DB instance. /// Class for the DB instance. /// DB instance object. public async Task CreateDBInstanceInClusterAsync( string dbClusterIdentifier, string dbInstanceIdentifier, string dbEngine, string dbEngineVersion, string instanceClass) { // When creating the instance within a cluster, do not specify the name or size. var response = await _amazonRDS.CreateDBInstanceAsync( new CreateDBInstanceRequest() { DBClusterIdentifier = dbClusterIdentifier, DBInstanceIdentifier = dbInstanceIdentifier, Engine = dbEngine, EngineVersion = dbEngineVersion, DBInstanceClass = instanceClass }); return response.DBInstance; } ``` + API の詳細については、*AWS SDK for .NET API リファレンス*の「[CreateDBInstance](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/CreateDBInstance)」を参照してください。 ------ #### [ C\$1\$1 ] **SDK for C\$1\$1** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region (overrides config file). // clientConfig.region = "us-east-1"; Aws::RDS::RDSClient client(clientConfig); Aws::RDS::Model::CreateDBInstanceRequest request; request.SetDBInstanceIdentifier(DB_INSTANCE_IDENTIFIER); request.SetDBClusterIdentifier(DB_CLUSTER_IDENTIFIER); request.SetEngine(engineName); request.SetDBInstanceClass(dbInstanceClass); Aws::RDS::Model::CreateDBInstanceOutcome outcome = client.CreateDBInstance(request); if (outcome.IsSuccess()) { std::cout << "The DB instance creation has started." << std::endl; } else { std::cerr << "Error with RDS::CreateDBInstance. " << outcome.GetError().GetMessage() << std::endl; cleanUpResources(CLUSTER_PARAMETER_GROUP_NAME, DB_CLUSTER_IDENTIFIER, "", client); return false; } ``` + API の詳細については、*AWS SDK for C\$1\$1 API リファレンス*の「[CreateDBInstance](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/CreateDBInstance)」を参照してください。 ------ #### [ Go ] **SDK for Go V2** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/gov2/aurora#code-examples)での設定と実行の方法を確認してください。 ``` import ( "context" "errors" "log" "github.com/aws/aws-sdk-go-v2/aws" "github.com/aws/aws-sdk-go-v2/service/rds" "github.com/aws/aws-sdk-go-v2/service/rds/types" ) type DbClusters struct { AuroraClient *rds.Client } // CreateInstanceInCluster creates a database instance in an existing DB cluster. The first database that is // created defaults to a read-write DB instance. func (clusters *DbClusters) CreateInstanceInCluster(ctx context.Context, clusterName string, instanceName string, dbEngine string, dbInstanceClass string) (*types.DBInstance, error) { output, err := clusters.AuroraClient.CreateDBInstance(ctx, &rds.CreateDBInstanceInput{ DBInstanceIdentifier: aws.String(instanceName), DBClusterIdentifier: aws.String(clusterName), Engine: aws.String(dbEngine), DBInstanceClass: aws.String(dbInstanceClass), }) if err != nil { log.Printf("Couldn't create instance %v: %v\n", instanceName, err) return nil, err } else { return output.DBInstance, nil } } ``` + API の詳細については、*AWS SDK for Go API リファレンス*の「[CreateDBInstance](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.CreateDBInstance)」を参照してください。 ------ #### [ Java ] **SDK for Java 2.x** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/rds#code-examples)での設定と実行の方法を確認してください。 ``` public static String createDBInstanceCluster(RdsClient rdsClient, String dbInstanceIdentifier, String dbInstanceClusterIdentifier, String instanceClass) { try { CreateDbInstanceRequest instanceRequest = CreateDbInstanceRequest.builder() .dbInstanceIdentifier(dbInstanceIdentifier) .dbClusterIdentifier(dbInstanceClusterIdentifier) .engine("aurora-mysql") .dbInstanceClass(instanceClass) .build(); CreateDbInstanceResponse response = rdsClient.createDBInstance(instanceRequest); System.out.print("The status is " + response.dbInstance().dbInstanceStatus()); return response.dbInstance().dbInstanceArn(); } catch (RdsException e) { System.err.println(e.getMessage()); System.exit(1); } return ""; } ``` + API の詳細については、*AWS SDK for Java 2.x API リファレンス*の「[CreateDBInstance](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/CreateDBInstance)」を参照してください。 ------ #### [ Kotlin ] **SDK for Kotlin** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/rds#code-examples)での設定と実行の方法を確認してください。 ``` suspend fun createDBInstanceCluster( dbInstanceIdentifierVal: String?, dbInstanceClusterIdentifierVal: String?, instanceClassVal: String?, ): String? { val instanceRequest = CreateDbInstanceRequest { dbInstanceIdentifier = dbInstanceIdentifierVal dbClusterIdentifier = dbInstanceClusterIdentifierVal engine = "aurora-mysql" dbInstanceClass = instanceClassVal } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> val response = rdsClient.createDbInstance(instanceRequest) print("The status is ${response.dbInstance?.dbInstanceStatus}") return response.dbInstance?.dbInstanceArn } } ``` + API の詳細については、*AWS SDK for Kotlin API リファレンス*の「[CreateDBInstance](https://sdk.amazonaws.com/kotlin/api/latest/index.html)」を参照してください。 ------ #### [ Python ] **SDK for Python (Boto3)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` class AuroraWrapper: """Encapsulates Aurora DB cluster actions.""" def __init__(self, rds_client): """ :param rds_client: A Boto3 Amazon Relational Database Service (Amazon RDS) client. """ self.rds_client = rds_client @classmethod def from_client(cls): """ Instantiates this class from a Boto3 client. """ rds_client = boto3.client("rds") return cls(rds_client) def create_instance_in_cluster( self, instance_id, cluster_id, db_engine, instance_class ): """ Creates a database instance in an existing DB cluster. The first database that is created defaults to a read-write DB instance. :param instance_id: The ID to give the newly created DB instance. :param cluster_id: The ID of the DB cluster where the DB instance is created. :param db_engine: The database engine of a database to create in the DB instance. This must be compatible with the configured parameter group of the DB cluster. :param instance_class: The DB instance class for the newly created DB instance. :return: Data about the newly created DB instance. """ try: response = self.rds_client.create_db_instance( DBInstanceIdentifier=instance_id, DBClusterIdentifier=cluster_id, Engine=db_engine, DBInstanceClass=instance_class, ) db_inst = response["DBInstance"] except ClientError as err: logger.error( "Couldn't create DB instance %s. Here's why: %s: %s", instance_id, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return db_inst ``` + API の詳細については、*AWS SDK for Python (Boto3) API リファレンス*の「[CreateDBInstance](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/CreateDBInstance)」を参照してください。 ------ #### [ Rust ] **SDK for Rust** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/rustv1/examples/aurora#code-examples)での設定と実行の方法を確認してください。 ``` // Get a list of allowed engine versions. rds.DescribeDbEngineVersions(Engine='aurora-mysql', DBParameterGroupFamily=) // Create an Aurora DB cluster database cluster that contains a MySql database and uses the parameter group you created. // Wait for DB cluster to be ready. Call rds.DescribeDBClusters and check for Status == 'available'. // Get a list of instance classes available for the selected engine and engine version. rds.DescribeOrderableDbInstanceOptions(Engine='mysql', EngineVersion=). // Create a database instance in the cluster. // Wait for DB instance to be ready. Call rds.DescribeDbInstances and check for DBInstanceStatus == 'available'. pub async fn start_cluster_and_instance(&mut self) -> Result<(), ScenarioError> { if self.password.is_none() { return Err(ScenarioError::with( "Must set Secret Password before starting a cluster", )); } let create_db_cluster = self .rds .create_db_cluster( DB_CLUSTER_IDENTIFIER, DB_CLUSTER_PARAMETER_GROUP_NAME, DB_ENGINE, self.engine_version.as_deref().expect("engine version"), self.username.as_deref().expect("username"), self.password .replace(SecretString::new("".to_string())) .expect("password"), ) .await; if let Err(err) = create_db_cluster { return Err(ScenarioError::new( "Failed to create DB Cluster with cluster group", &err, )); } self.db_cluster_identifier = create_db_cluster .unwrap() .db_cluster .and_then(|c| c.db_cluster_identifier); if self.db_cluster_identifier.is_none() { return Err(ScenarioError::with("Created DB Cluster missing Identifier")); } info!( "Started a db cluster: {}", self.db_cluster_identifier .as_deref() .unwrap_or("Missing ARN") ); let create_db_instance = self .rds .create_db_instance( self.db_cluster_identifier.as_deref().expect("cluster name"), DB_INSTANCE_IDENTIFIER, self.instance_class.as_deref().expect("instance class"), DB_ENGINE, ) .await; if let Err(err) = create_db_instance { return Err(ScenarioError::new( "Failed to create Instance in DB Cluster", &err, )); } self.db_instance_identifier = create_db_instance .unwrap() .db_instance .and_then(|i| i.db_instance_identifier); // Cluster creation can take up to 20 minutes to become available let cluster_max_wait = Duration::from_secs(20 * 60); let waiter = Waiter::builder().max(cluster_max_wait).build(); while waiter.sleep().await.is_ok() { let cluster = self .rds .describe_db_clusters( self.db_cluster_identifier .as_deref() .expect("cluster identifier"), ) .await; if let Err(err) = cluster { warn!(?err, "Failed to describe cluster while waiting for ready"); continue; } let instance = self .rds .describe_db_instance( self.db_instance_identifier .as_deref() .expect("instance identifier"), ) .await; if let Err(err) = instance { return Err(ScenarioError::new( "Failed to find instance for cluster", &err, )); } let instances_available = instance .unwrap() .db_instances() .iter() .all(|instance| instance.db_instance_status() == Some("Available")); let endpoints = self .rds .describe_db_cluster_endpoints( self.db_cluster_identifier .as_deref() .expect("cluster identifier"), ) .await; if let Err(err) = endpoints { return Err(ScenarioError::new( "Failed to find endpoint for cluster", &err, )); } let endpoints_available = endpoints .unwrap() .db_cluster_endpoints() .iter() .all(|endpoint| endpoint.status() == Some("available")); if instances_available && endpoints_available { return Ok(()); } } Err(ScenarioError::with("timed out waiting for cluster")) } pub async fn create_db_instance( &self, cluster_name: &str, instance_name: &str, instance_class: &str, engine: &str, ) -> Result> { self.inner .create_db_instance() .db_cluster_identifier(cluster_name) .db_instance_identifier(instance_name) .db_instance_class(instance_class) .engine(engine) .send() .await } #[tokio::test] async fn test_start_cluster_and_instance() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .withf(|id, params, engine, version, username, password| { assert_eq!(id, "RustSDKCodeExamplesDBCluster"); assert_eq!(params, "RustSDKCodeExamplesDBParameterGroup"); assert_eq!(engine, "aurora-mysql"); assert_eq!(version, "aurora-mysql8.0"); assert_eq!(username, "test username"); assert_eq!(password.expose_secret(), "test password"); true }) .return_once(|id, _, _, _, _, _| { Ok(CreateDbClusterOutput::builder() .db_cluster(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds .expect_create_db_instance() .withf(|cluster, name, class, engine| { assert_eq!(cluster, "RustSDKCodeExamplesDBCluster"); assert_eq!(name, "RustSDKCodeExamplesDBInstance"); assert_eq!(class, "m5.large"); assert_eq!(engine, "aurora-mysql"); true }) .return_once(|cluster, name, class, _| { Ok(CreateDbInstanceOutput::builder() .db_instance( DbInstance::builder() .db_cluster_identifier(cluster) .db_instance_identifier(name) .db_instance_class(class) .build(), ) .build()) }); mock_rds .expect_describe_db_clusters() .with(eq("RustSDKCodeExamplesDBCluster")) .return_once(|id| { Ok(DescribeDbClustersOutput::builder() .db_clusters(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds .expect_describe_db_instance() .with(eq("RustSDKCodeExamplesDBInstance")) .return_once(|name| { Ok(DescribeDbInstancesOutput::builder() .db_instances( DbInstance::builder() .db_instance_identifier(name) .db_instance_status("Available") .build(), ) .build()) }); mock_rds .expect_describe_db_cluster_endpoints() .with(eq("RustSDKCodeExamplesDBCluster")) .return_once(|_| { Ok(DescribeDbClusterEndpointsOutput::builder() .db_cluster_endpoints(DbClusterEndpoint::builder().status("available").build()) .build()) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); tokio::time::pause(); let assertions = tokio::spawn(async move { let create = scenario.start_cluster_and_instance().await; assert!(create.is_ok()); assert!(scenario .password .replace(SecretString::new("BAD SECRET".into())) .unwrap() .expose_secret() .is_empty()); assert_eq!( scenario.db_cluster_identifier, Some("RustSDKCodeExamplesDBCluster".into()) ); }); tokio::time::advance(Duration::from_secs(1)).await; tokio::time::resume(); let _ = assertions.await; } #[tokio::test] async fn test_start_cluster_and_instance_cluster_create_error() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .return_once(|_, _, _, _, _, _| { Err(SdkError::service_error( CreateDBClusterError::unhandled(Box::new(Error::new( ErrorKind::Other, "create db cluster error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); let create = scenario.start_cluster_and_instance().await; assert_matches!(create, Err(ScenarioError { message, context: _}) if message == "Failed to create DB Cluster with cluster group") } #[tokio::test] async fn test_start_cluster_and_instance_cluster_create_missing_id() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .return_once(|_, _, _, _, _, _| { Ok(CreateDbClusterOutput::builder() .db_cluster(DbCluster::builder().build()) .build()) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); let create = scenario.start_cluster_and_instance().await; assert_matches!(create, Err(ScenarioError { message, context:_ }) if message == "Created DB Cluster missing Identifier"); } #[tokio::test] async fn test_start_cluster_and_instance_instance_create_error() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .withf(|id, params, engine, version, username, password| { assert_eq!(id, "RustSDKCodeExamplesDBCluster"); assert_eq!(params, "RustSDKCodeExamplesDBParameterGroup"); assert_eq!(engine, "aurora-mysql"); assert_eq!(version, "aurora-mysql8.0"); assert_eq!(username, "test username"); assert_eq!(password.expose_secret(), "test password"); true }) .return_once(|id, _, _, _, _, _| { Ok(CreateDbClusterOutput::builder() .db_cluster(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds .expect_create_db_instance() .return_once(|_, _, _, _| { Err(SdkError::service_error( CreateDBInstanceError::unhandled(Box::new(Error::new( ErrorKind::Other, "create db instance error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); let create = scenario.start_cluster_and_instance().await; assert_matches!(create, Err(ScenarioError { message, context: _ }) if message == "Failed to create Instance in DB Cluster") } #[tokio::test] async fn test_start_cluster_and_instance_wait_hiccup() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .withf(|id, params, engine, version, username, password| { assert_eq!(id, "RustSDKCodeExamplesDBCluster"); assert_eq!(params, "RustSDKCodeExamplesDBParameterGroup"); assert_eq!(engine, "aurora-mysql"); assert_eq!(version, "aurora-mysql8.0"); assert_eq!(username, "test username"); assert_eq!(password.expose_secret(), "test password"); true }) .return_once(|id, _, _, _, _, _| { Ok(CreateDbClusterOutput::builder() .db_cluster(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds .expect_create_db_instance() .withf(|cluster, name, class, engine| { assert_eq!(cluster, "RustSDKCodeExamplesDBCluster"); assert_eq!(name, "RustSDKCodeExamplesDBInstance"); assert_eq!(class, "m5.large"); assert_eq!(engine, "aurora-mysql"); true }) .return_once(|cluster, name, class, _| { Ok(CreateDbInstanceOutput::builder() .db_instance( DbInstance::builder() .db_cluster_identifier(cluster) .db_instance_identifier(name) .db_instance_class(class) .build(), ) .build()) }); mock_rds .expect_describe_db_clusters() .with(eq("RustSDKCodeExamplesDBCluster")) .times(1) .returning(|_| { Err(SdkError::service_error( DescribeDBClustersError::unhandled(Box::new(Error::new( ErrorKind::Other, "describe cluster error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }) .with(eq("RustSDKCodeExamplesDBCluster")) .times(1) .returning(|id| { Ok(DescribeDbClustersOutput::builder() .db_clusters(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds.expect_describe_db_instance().return_once(|name| { Ok(DescribeDbInstancesOutput::builder() .db_instances( DbInstance::builder() .db_instance_identifier(name) .db_instance_status("Available") .build(), ) .build()) }); mock_rds .expect_describe_db_cluster_endpoints() .return_once(|_| { Ok(DescribeDbClusterEndpointsOutput::builder() .db_cluster_endpoints(DbClusterEndpoint::builder().status("available").build()) .build()) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); tokio::time::pause(); let assertions = tokio::spawn(async move { let create = scenario.start_cluster_and_instance().await; assert!(create.is_ok()); }); tokio::time::advance(Duration::from_secs(1)).await; tokio::time::advance(Duration::from_secs(1)).await; tokio::time::resume(); let _ = assertions.await; } ``` + API の詳細については、AWS SDK for Rust API リファレンスの「[CreateDBInstance](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.create_db_instance)」を参照してください。** ------ # AWS SDK `DeleteDBCluster`でを使用する次のサンプルコードは、`DeleteDBCluster` を使用する方法を説明しています。アクション例は、より大きなプログラムからのコードの抜粋であり、コンテキスト内で実行する必要があります。次のコード例で、このアクションのコンテキストを確認できます。 + [基本を学ぶ](aurora_example_aurora_Scenario_GetStartedClusters_section.md) ------ #### [ .NET ] **SDK for .NET (v4)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/Aurora#code-examples)での設定と実行の方法を確認してください。 ``` ///

/// Delete a particular DB cluster. ///

/// DB cluster identifier. /// DB cluster object. public async Task DeleteDBClusterByIdentifierAsync(string dbClusterIdentifier) { var response = await _amazonRDS.DeleteDBClusterAsync( new DeleteDBClusterRequest() { DBClusterIdentifier = dbClusterIdentifier, SkipFinalSnapshot = true }); return response.DBCluster; } ``` + API の詳細については、[AWS SDK for .NET API リファレンス](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/DeleteDBCluster)の「*DeleteDBCluster*」を参照してください。 ------ #### [ C\$1\$1 ] **SDK for C\$1\$1** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region (overrides config file). // clientConfig.region = "us-east-1"; Aws::RDS::RDSClient client(clientConfig); Aws::RDS::Model::DeleteDBClusterRequest request; request.SetDBClusterIdentifier(dbClusterIdentifier); request.SetSkipFinalSnapshot(true); Aws::RDS::Model::DeleteDBClusterOutcome outcome = client.DeleteDBCluster(request); if (outcome.IsSuccess()) { std::cout << "DB cluster deletion has started." << std::endl; clusterDeleting = true; std::cout << "Waiting for DB cluster to delete before deleting the parameter group." << std::endl; std::cout << "This may take a while." << std::endl; } else { std::cerr << "Error with Aurora::DeleteDBCluster. " << outcome.GetError().GetMessage() << std::endl; result = false; } ``` + API の詳細については、*AWS SDK for C\$1\$1 API リファレンス*の「[DeleteDBCluster](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/DeleteDBCluster)」を参照してください。 ------ #### [ Go ] **SDK for Go V2** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/gov2/aurora#code-examples)での設定と実行の方法を確認してください。 ``` import ( "context" "errors" "log" "github.com/aws/aws-sdk-go-v2/aws" "github.com/aws/aws-sdk-go-v2/service/rds" "github.com/aws/aws-sdk-go-v2/service/rds/types" ) type DbClusters struct { AuroraClient *rds.Client } // DeleteDbCluster deletes a DB cluster without keeping a final snapshot. func (clusters *DbClusters) DeleteDbCluster(ctx context.Context, clusterName string) error { _, err := clusters.AuroraClient.DeleteDBCluster(ctx, &rds.DeleteDBClusterInput{ DBClusterIdentifier: aws.String(clusterName), SkipFinalSnapshot: aws.Bool(true), }) if err != nil { log.Printf("Couldn't delete DB cluster %v: %v\n", clusterName, err) return err } else { return nil } } ``` + API の詳細については、[AWS SDK for Go API リファレンス](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.DeleteDBCluster)の「*DeleteDBCluster*」を参照してください。 ------ #### [ Java ] **SDK for Java 2.x** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/rds#code-examples)での設定と実行の方法を確認してください。 ``` public static void deleteCluster(RdsClient rdsClient, String dbInstanceClusterIdentifier) { try { DeleteDbClusterRequest deleteDbClusterRequest = DeleteDbClusterRequest.builder() .dbClusterIdentifier(dbInstanceClusterIdentifier) .skipFinalSnapshot(true) .build(); rdsClient.deleteDBCluster(deleteDbClusterRequest); System.out.println(dbInstanceClusterIdentifier + " was deleted!"); } catch (RdsException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } } ``` + API の詳細については、[AWS SDK for Java 2.x API リファレンス](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/DeleteDBCluster)の「*DeleteDBCluster*」を参照してください。 ------ #### [ Kotlin ] **SDK for Kotlin** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/rds#code-examples)での設定と実行の方法を確認してください。 ``` suspend fun deleteCluster(dbInstanceClusterIdentifier: String) { val deleteDbClusterRequest = DeleteDbClusterRequest { dbClusterIdentifier = dbInstanceClusterIdentifier skipFinalSnapshot = true } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> rdsClient.deleteDbCluster(deleteDbClusterRequest) println("$dbInstanceClusterIdentifier was deleted!") } } ``` + API の詳細については、*AWS SDK for Kotlin API リファレンス*の「[DeleteDBCluster](https://sdk.amazonaws.com/kotlin/api/latest/index.html)」を参照してください。 ------ #### [ Python ] **SDK for Python (Boto3)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` class AuroraWrapper: """Encapsulates Aurora DB cluster actions.""" def __init__(self, rds_client): """ :param rds_client: A Boto3 Amazon Relational Database Service (Amazon RDS) client. """ self.rds_client = rds_client @classmethod def from_client(cls): """ Instantiates this class from a Boto3 client. """ rds_client = boto3.client("rds") return cls(rds_client) def delete_db_cluster(self, cluster_name): """ Deletes a DB cluster. :param cluster_name: The name of the DB cluster to delete. """ try: self.rds_client.delete_db_cluster( DBClusterIdentifier=cluster_name, SkipFinalSnapshot=True ) logger.info("Deleted DB cluster %s.", cluster_name) except ClientError: logger.exception("Couldn't delete DB cluster %s.", cluster_name) raise ``` + API の詳細については、*AWS SDK for Python (Boto3) API リファレンス*の「[DeleteDBCluster](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/DeleteDBCluster)」を参照してください。 ------ #### [ Rust ] **SDK for Rust** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/rustv1/examples/aurora#code-examples)での設定と実行の方法を確認してください。 ``` pub async fn clean_up(self) -> Result<(), Vec> { let mut clean_up_errors: Vec = vec![]; // Delete the instance. rds.DeleteDbInstance. let delete_db_instance = self .rds .delete_db_instance( self.db_instance_identifier .as_deref() .expect("instance identifier"), ) .await; if let Err(err) = delete_db_instance { let identifier = self .db_instance_identifier .as_deref() .unwrap_or("Missing Instance Identifier"); let message = format!("failed to delete db instance {identifier}"); clean_up_errors.push(ScenarioError::new(message, &err)); } else { // Wait for the instance to delete let waiter = Waiter::default(); while waiter.sleep().await.is_ok() { let describe_db_instances = self.rds.describe_db_instances().await; if let Err(err) = describe_db_instances { clean_up_errors.push(ScenarioError::new( "Failed to check instance state during deletion", &err, )); break; } let db_instances = describe_db_instances .unwrap() .db_instances() .iter() .filter(|instance| instance.db_cluster_identifier == self.db_cluster_identifier) .cloned() .collect::>(); if db_instances.is_empty() { trace!("Delete Instance waited and no instances were found"); break; } match db_instances.first().unwrap().db_instance_status() { Some("Deleting") => continue, Some(status) => { info!("Attempting to delete but instances is in {status}"); continue; } None => { warn!("No status for DB instance"); break; } } } } // Delete the DB cluster. rds.DeleteDbCluster. let delete_db_cluster = self .rds .delete_db_cluster( self.db_cluster_identifier .as_deref() .expect("cluster identifier"), ) .await; if let Err(err) = delete_db_cluster { let identifier = self .db_cluster_identifier .as_deref() .unwrap_or("Missing DB Cluster Identifier"); let message = format!("failed to delete db cluster {identifier}"); clean_up_errors.push(ScenarioError::new(message, &err)); } else { // Wait for the instance and cluster to fully delete. rds.DescribeDbInstances and rds.DescribeDbClusters until both are not found. let waiter = Waiter::default(); while waiter.sleep().await.is_ok() { let describe_db_clusters = self .rds .describe_db_clusters( self.db_cluster_identifier .as_deref() .expect("cluster identifier"), ) .await; if let Err(err) = describe_db_clusters { clean_up_errors.push(ScenarioError::new( "Failed to check cluster state during deletion", &err, )); break; } let describe_db_clusters = describe_db_clusters.unwrap(); let db_clusters = describe_db_clusters.db_clusters(); if db_clusters.is_empty() { trace!("Delete cluster waited and no clusters were found"); break; } match db_clusters.first().unwrap().status() { Some("Deleting") => continue, Some(status) => { info!("Attempting to delete but clusters is in {status}"); continue; } None => { warn!("No status for DB cluster"); break; } } } } // Delete the DB cluster parameter group. rds.DeleteDbClusterParameterGroup. let delete_db_cluster_parameter_group = self .rds .delete_db_cluster_parameter_group( self.db_cluster_parameter_group .map(|g| { g.db_cluster_parameter_group_name .unwrap_or_else(|| DB_CLUSTER_PARAMETER_GROUP_NAME.to_string()) }) .as_deref() .expect("cluster parameter group name"), ) .await; if let Err(error) = delete_db_cluster_parameter_group { clean_up_errors.push(ScenarioError::new( "Failed to delete the db cluster parameter group", &error, )) } if clean_up_errors.is_empty() { Ok(()) } else { Err(clean_up_errors) } } pub async fn delete_db_cluster( &self, cluster_identifier: &str, ) -> Result> { self.inner .delete_db_cluster() .db_cluster_identifier(cluster_identifier) .skip_final_snapshot(true) .send() .await } #[tokio::test] async fn test_scenario_clean_up() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_delete_db_instance() .with(eq("MockInstance")) .return_once(|_| Ok(DeleteDbInstanceOutput::builder().build())); mock_rds .expect_describe_db_instances() .with() .times(1) .returning(|| { Ok(DescribeDbInstancesOutput::builder() .db_instances( DbInstance::builder() .db_cluster_identifier("MockCluster") .db_instance_status("Deleting") .build(), ) .build()) }) .with() .times(1) .returning(|| Ok(DescribeDbInstancesOutput::builder().build())); mock_rds .expect_delete_db_cluster() .with(eq("MockCluster")) .return_once(|_| Ok(DeleteDbClusterOutput::builder().build())); mock_rds .expect_describe_db_clusters() .with(eq("MockCluster")) .times(1) .returning(|id| { Ok(DescribeDbClustersOutput::builder() .db_clusters( DbCluster::builder() .db_cluster_identifier(id) .status("Deleting") .build(), ) .build()) }) .with(eq("MockCluster")) .times(1) .returning(|_| Ok(DescribeDbClustersOutput::builder().build())); mock_rds .expect_delete_db_cluster_parameter_group() .with(eq("MockParamGroup")) .return_once(|_| Ok(DeleteDbClusterParameterGroupOutput::builder().build())); let mut scenario = AuroraScenario::new(mock_rds); scenario.db_cluster_identifier = Some(String::from("MockCluster")); scenario.db_instance_identifier = Some(String::from("MockInstance")); scenario.db_cluster_parameter_group = Some( DbClusterParameterGroup::builder() .db_cluster_parameter_group_name("MockParamGroup") .build(), ); tokio::time::pause(); let assertions = tokio::spawn(async move { let clean_up = scenario.clean_up().await; assert!(clean_up.is_ok()); }); tokio::time::advance(Duration::from_secs(1)).await; // Wait for first Describe Instances tokio::time::advance(Duration::from_secs(1)).await; // Wait for second Describe Instances tokio::time::advance(Duration::from_secs(1)).await; // Wait for first Describe Cluster tokio::time::advance(Duration::from_secs(1)).await; // Wait for second Describe Cluster tokio::time::resume(); let _ = assertions.await; } #[tokio::test] async fn test_scenario_clean_up_errors() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_delete_db_instance() .with(eq("MockInstance")) .return_once(|_| Ok(DeleteDbInstanceOutput::builder().build())); mock_rds .expect_describe_db_instances() .with() .times(1) .returning(|| { Ok(DescribeDbInstancesOutput::builder() .db_instances( DbInstance::builder() .db_cluster_identifier("MockCluster") .db_instance_status("Deleting") .build(), ) .build()) }) .with() .times(1) .returning(|| { Err(SdkError::service_error( DescribeDBInstancesError::unhandled(Box::new(Error::new( ErrorKind::Other, "describe db instances error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); mock_rds .expect_delete_db_cluster() .with(eq("MockCluster")) .return_once(|_| Ok(DeleteDbClusterOutput::builder().build())); mock_rds .expect_describe_db_clusters() .with(eq("MockCluster")) .times(1) .returning(|id| { Ok(DescribeDbClustersOutput::builder() .db_clusters( DbCluster::builder() .db_cluster_identifier(id) .status("Deleting") .build(), ) .build()) }) .with(eq("MockCluster")) .times(1) .returning(|_| { Err(SdkError::service_error( DescribeDBClustersError::unhandled(Box::new(Error::new( ErrorKind::Other, "describe db clusters error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); mock_rds .expect_delete_db_cluster_parameter_group() .with(eq("MockParamGroup")) .return_once(|_| Ok(DeleteDbClusterParameterGroupOutput::builder().build())); let mut scenario = AuroraScenario::new(mock_rds); scenario.db_cluster_identifier = Some(String::from("MockCluster")); scenario.db_instance_identifier = Some(String::from("MockInstance")); scenario.db_cluster_parameter_group = Some( DbClusterParameterGroup::builder() .db_cluster_parameter_group_name("MockParamGroup") .build(), ); tokio::time::pause(); let assertions = tokio::spawn(async move { let clean_up = scenario.clean_up().await; assert!(clean_up.is_err()); let errs = clean_up.unwrap_err(); assert_eq!(errs.len(), 2); assert_matches!(errs.first(), Some(ScenarioError {message, context: _}) if message == "Failed to check instance state during deletion"); assert_matches!(errs.get(1), Some(ScenarioError {message, context: _}) if message == "Failed to check cluster state during deletion"); }); tokio::time::advance(Duration::from_secs(1)).await; // Wait for first Describe Instances tokio::time::advance(Duration::from_secs(1)).await; // Wait for second Describe Instances tokio::time::advance(Duration::from_secs(1)).await; // Wait for first Describe Cluster tokio::time::advance(Duration::from_secs(1)).await; // Wait for second Describe Cluster tokio::time::resume(); let _ = assertions.await; } ``` + API の詳細については、*AWS SDK for Rust API リファレンス*の「[DeleteDBCluster](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.delete_db_cluster)」を参照してください。 ------ # AWS SDK `DeleteDBClusterParameterGroup`でを使用する次のサンプルコードは、`DeleteDBClusterParameterGroup` を使用する方法を説明しています。アクション例は、より大きなプログラムからのコードの抜粋であり、コンテキスト内で実行する必要があります。次のコード例で、このアクションのコンテキストを確認できます。 + [基本を学ぶ](aurora_example_aurora_Scenario_GetStartedClusters_section.md) ------ #### [ .NET ] **SDK for .NET (v4)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/Aurora#code-examples)での設定と実行の方法を確認してください。 ``` ///

/// Delete a particular parameter group by name. ///

/// The name of the parameter group. /// True if successful. public async Task DeleteClusterParameterGroupByNameAsync(string groupName) { var request = new DeleteDBClusterParameterGroupRequest { DBClusterParameterGroupName = groupName, }; var response = await _amazonRDS.DeleteDBClusterParameterGroupAsync(request); return response.HttpStatusCode == System.Net.HttpStatusCode.OK; } ``` + API の詳細については、*AWS SDK for .NET API リファレンス*の「[DeleteDBClusterParameterGroup](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/DeleteDBClusterParameterGroup)」を参照してください。 ------ #### [ C\$1\$1 ] **SDK for C\$1\$1** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region (overrides config file). // clientConfig.region = "us-east-1"; Aws::RDS::RDSClient client(clientConfig); Aws::RDS::Model::DeleteDBClusterParameterGroupRequest request; request.SetDBClusterParameterGroupName(parameterGroupName); Aws::RDS::Model::DeleteDBClusterParameterGroupOutcome outcome = client.DeleteDBClusterParameterGroup(request); if (outcome.IsSuccess()) { std::cout << "The DB parameter group was successfully deleted." << std::endl; } else { std::cerr << "Error with Aurora::DeleteDBClusterParameterGroup. " << outcome.GetError().GetMessage() << std::endl; result = false; } ``` + API の詳細については、*AWS SDK for C\$1\$1 API リファレンス*の「[DeleteDBClusterParameterGroup](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/DeleteDBClusterParameterGroup)」を参照してください。 ------ #### [ Go ] **SDK for Go V2** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/gov2/aurora#code-examples)での設定と実行の方法を確認してください。 ``` import ( "context" "errors" "log" "github.com/aws/aws-sdk-go-v2/aws" "github.com/aws/aws-sdk-go-v2/service/rds" "github.com/aws/aws-sdk-go-v2/service/rds/types" ) type DbClusters struct { AuroraClient *rds.Client } // DeleteParameterGroup deletes the named DB cluster parameter group. func (clusters *DbClusters) DeleteParameterGroup(ctx context.Context, parameterGroupName string) error { _, err := clusters.AuroraClient.DeleteDBClusterParameterGroup(ctx, &rds.DeleteDBClusterParameterGroupInput{ DBClusterParameterGroupName: aws.String(parameterGroupName), }) if err != nil { log.Printf("Couldn't delete parameter group %v: %v\n", parameterGroupName, err) return err } else { return nil } } ``` + API の詳細については、*AWS SDK for Go API リファレンス*の「[DeleteDBClusterParameterGroup](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.DeleteDBClusterParameterGroup)」を参照してください。 ------ #### [ Java ] **SDK for Java 2.x** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/rds#code-examples)での設定と実行の方法を確認してください。 ``` public static void deleteDBClusterGroup(RdsClient rdsClient, String dbClusterGroupName, String clusterDBARN) throws InterruptedException { try { boolean isDataDel = false; boolean didFind; String instanceARN; // Make sure that the database has been deleted. while (!isDataDel) { DescribeDbInstancesResponse response = rdsClient.describeDBInstances(); List instanceList = response.dbInstances(); int listSize = instanceList.size(); didFind = false; int index = 1; for (DBInstance instance : instanceList) { instanceARN = instance.dbInstanceArn(); if (instanceARN.compareTo(clusterDBARN) == 0) { System.out.println(clusterDBARN + " still exists"); didFind = true; } if ((index == listSize) && (!didFind)) { // Went through the entire list and did not find the database ARN. isDataDel = true; } Thread.sleep(sleepTime * 1000); index++; } } DeleteDbClusterParameterGroupRequest clusterParameterGroupRequest = DeleteDbClusterParameterGroupRequest .builder() .dbClusterParameterGroupName(dbClusterGroupName) .build(); rdsClient.deleteDBClusterParameterGroup(clusterParameterGroupRequest); System.out.println(dbClusterGroupName + " was deleted."); } catch (RdsException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } } ``` + API の詳細については、*AWS SDK for Java 2.x API リファレンス*の「[DeleteDBClusterParameterGroup](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/DeleteDBClusterParameterGroup)」を参照してください。 ------ #### [ Kotlin ] **SDK for Kotlin** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/rds#code-examples)での設定と実行の方法を確認してください。 ``` @Throws(InterruptedException::class) suspend fun deleteDBClusterGroup( dbClusterGroupName: String, clusterDBARN: String, ) { var isDataDel = false var didFind: Boolean var instanceARN: String RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> // Make sure that the database has been deleted. while (!isDataDel) { val response = rdsClient.describeDbInstances() val instanceList = response.dbInstances val listSize = instanceList?.size isDataDel = false didFind = false var index = 1 if (instanceList != null) { for (instance in instanceList) { instanceARN = instance.dbInstanceArn.toString() if (instanceARN.compareTo(clusterDBARN) == 0) { println("$clusterDBARN still exists") didFind = true } if (index == listSize && !didFind) { // Went through the entire list and did not find the database ARN. isDataDel = true } delay(slTime * 1000) index++ } } } val clusterParameterGroupRequest = DeleteDbClusterParameterGroupRequest { dbClusterParameterGroupName = dbClusterGroupName } rdsClient.deleteDbClusterParameterGroup(clusterParameterGroupRequest) println("$dbClusterGroupName was deleted.") } } ``` + API の詳細については、*AWS SDK for Kotlin API リファレンス*の「[DeleteDBClusterParameterGroup](https://sdk.amazonaws.com/kotlin/api/latest/index.html)」を参照してください。 ------ #### [ Python ] **SDK for Python (Boto3)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` class AuroraWrapper: """Encapsulates Aurora DB cluster actions.""" def __init__(self, rds_client): """ :param rds_client: A Boto3 Amazon Relational Database Service (Amazon RDS) client. """ self.rds_client = rds_client @classmethod def from_client(cls): """ Instantiates this class from a Boto3 client. """ rds_client = boto3.client("rds") return cls(rds_client) def delete_parameter_group(self, parameter_group_name): """ Deletes a DB cluster parameter group. :param parameter_group_name: The name of the parameter group to delete. :return: Data about the parameter group. """ try: response = self.rds_client.delete_db_cluster_parameter_group( DBClusterParameterGroupName=parameter_group_name ) except ClientError as err: logger.error( "Couldn't delete parameter group %s. Here's why: %s: %s", parameter_group_name, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return response ``` + API の詳細については、**「AWS SDK for Python (Boto3) API リファレンス」で「[DeleteDBClusterParameterGroup](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/DeleteDBClusterParameterGroup)」を参照してください。 ------ #### [ Rust ] **SDK for Rust** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/rustv1/examples/aurora#code-examples)での設定と実行の方法を確認してください。 ``` pub async fn clean_up(self) -> Result<(), Vec> { let mut clean_up_errors: Vec = vec![]; // Delete the instance. rds.DeleteDbInstance. let delete_db_instance = self .rds .delete_db_instance( self.db_instance_identifier .as_deref() .expect("instance identifier"), ) .await; if let Err(err) = delete_db_instance { let identifier = self .db_instance_identifier .as_deref() .unwrap_or("Missing Instance Identifier"); let message = format!("failed to delete db instance {identifier}"); clean_up_errors.push(ScenarioError::new(message, &err)); } else { // Wait for the instance to delete let waiter = Waiter::default(); while waiter.sleep().await.is_ok() { let describe_db_instances = self.rds.describe_db_instances().await; if let Err(err) = describe_db_instances { clean_up_errors.push(ScenarioError::new( "Failed to check instance state during deletion", &err, )); break; } let db_instances = describe_db_instances .unwrap() .db_instances() .iter() .filter(|instance| instance.db_cluster_identifier == self.db_cluster_identifier) .cloned() .collect::>(); if db_instances.is_empty() { trace!("Delete Instance waited and no instances were found"); break; } match db_instances.first().unwrap().db_instance_status() { Some("Deleting") => continue, Some(status) => { info!("Attempting to delete but instances is in {status}"); continue; } None => { warn!("No status for DB instance"); break; } } } } // Delete the DB cluster. rds.DeleteDbCluster. let delete_db_cluster = self .rds .delete_db_cluster( self.db_cluster_identifier .as_deref() .expect("cluster identifier"), ) .await; if let Err(err) = delete_db_cluster { let identifier = self .db_cluster_identifier .as_deref() .unwrap_or("Missing DB Cluster Identifier"); let message = format!("failed to delete db cluster {identifier}"); clean_up_errors.push(ScenarioError::new(message, &err)); } else { // Wait for the instance and cluster to fully delete. rds.DescribeDbInstances and rds.DescribeDbClusters until both are not found. let waiter = Waiter::default(); while waiter.sleep().await.is_ok() { let describe_db_clusters = self .rds .describe_db_clusters( self.db_cluster_identifier .as_deref() .expect("cluster identifier"), ) .await; if let Err(err) = describe_db_clusters { clean_up_errors.push(ScenarioError::new( "Failed to check cluster state during deletion", &err, )); break; } let describe_db_clusters = describe_db_clusters.unwrap(); let db_clusters = describe_db_clusters.db_clusters(); if db_clusters.is_empty() { trace!("Delete cluster waited and no clusters were found"); break; } match db_clusters.first().unwrap().status() { Some("Deleting") => continue, Some(status) => { info!("Attempting to delete but clusters is in {status}"); continue; } None => { warn!("No status for DB cluster"); break; } } } } // Delete the DB cluster parameter group. rds.DeleteDbClusterParameterGroup. let delete_db_cluster_parameter_group = self .rds .delete_db_cluster_parameter_group( self.db_cluster_parameter_group .map(|g| { g.db_cluster_parameter_group_name .unwrap_or_else(|| DB_CLUSTER_PARAMETER_GROUP_NAME.to_string()) }) .as_deref() .expect("cluster parameter group name"), ) .await; if let Err(error) = delete_db_cluster_parameter_group { clean_up_errors.push(ScenarioError::new( "Failed to delete the db cluster parameter group", &error, )) } if clean_up_errors.is_empty() { Ok(()) } else { Err(clean_up_errors) } } pub async fn delete_db_cluster_parameter_group( &self, name: &str, ) -> Result> { self.inner .delete_db_cluster_parameter_group() .db_cluster_parameter_group_name(name) .send() .await } #[tokio::test] async fn test_scenario_clean_up() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_delete_db_instance() .with(eq("MockInstance")) .return_once(|_| Ok(DeleteDbInstanceOutput::builder().build())); mock_rds .expect_describe_db_instances() .with() .times(1) .returning(|| { Ok(DescribeDbInstancesOutput::builder() .db_instances( DbInstance::builder() .db_cluster_identifier("MockCluster") .db_instance_status("Deleting") .build(), ) .build()) }) .with() .times(1) .returning(|| Ok(DescribeDbInstancesOutput::builder().build())); mock_rds .expect_delete_db_cluster() .with(eq("MockCluster")) .return_once(|_| Ok(DeleteDbClusterOutput::builder().build())); mock_rds .expect_describe_db_clusters() .with(eq("MockCluster")) .times(1) .returning(|id| { Ok(DescribeDbClustersOutput::builder() .db_clusters( DbCluster::builder() .db_cluster_identifier(id) .status("Deleting") .build(), ) .build()) }) .with(eq("MockCluster")) .times(1) .returning(|_| Ok(DescribeDbClustersOutput::builder().build())); mock_rds .expect_delete_db_cluster_parameter_group() .with(eq("MockParamGroup")) .return_once(|_| Ok(DeleteDbClusterParameterGroupOutput::builder().build())); let mut scenario = AuroraScenario::new(mock_rds); scenario.db_cluster_identifier = Some(String::from("MockCluster")); scenario.db_instance_identifier = Some(String::from("MockInstance")); scenario.db_cluster_parameter_group = Some( DbClusterParameterGroup::builder() .db_cluster_parameter_group_name("MockParamGroup") .build(), ); tokio::time::pause(); let assertions = tokio::spawn(async move { let clean_up = scenario.clean_up().await; assert!(clean_up.is_ok()); }); tokio::time::advance(Duration::from_secs(1)).await; // Wait for first Describe Instances tokio::time::advance(Duration::from_secs(1)).await; // Wait for second Describe Instances tokio::time::advance(Duration::from_secs(1)).await; // Wait for first Describe Cluster tokio::time::advance(Duration::from_secs(1)).await; // Wait for second Describe Cluster tokio::time::resume(); let _ = assertions.await; } #[tokio::test] async fn test_scenario_clean_up_errors() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_delete_db_instance() .with(eq("MockInstance")) .return_once(|_| Ok(DeleteDbInstanceOutput::builder().build())); mock_rds .expect_describe_db_instances() .with() .times(1) .returning(|| { Ok(DescribeDbInstancesOutput::builder() .db_instances( DbInstance::builder() .db_cluster_identifier("MockCluster") .db_instance_status("Deleting") .build(), ) .build()) }) .with() .times(1) .returning(|| { Err(SdkError::service_error( DescribeDBInstancesError::unhandled(Box::new(Error::new( ErrorKind::Other, "describe db instances error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); mock_rds .expect_delete_db_cluster() .with(eq("MockCluster")) .return_once(|_| Ok(DeleteDbClusterOutput::builder().build())); mock_rds .expect_describe_db_clusters() .with(eq("MockCluster")) .times(1) .returning(|id| { Ok(DescribeDbClustersOutput::builder() .db_clusters( DbCluster::builder() .db_cluster_identifier(id) .status("Deleting") .build(), ) .build()) }) .with(eq("MockCluster")) .times(1) .returning(|_| { Err(SdkError::service_error( DescribeDBClustersError::unhandled(Box::new(Error::new( ErrorKind::Other, "describe db clusters error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); mock_rds .expect_delete_db_cluster_parameter_group() .with(eq("MockParamGroup")) .return_once(|_| Ok(DeleteDbClusterParameterGroupOutput::builder().build())); let mut scenario = AuroraScenario::new(mock_rds); scenario.db_cluster_identifier = Some(String::from("MockCluster")); scenario.db_instance_identifier = Some(String::from("MockInstance")); scenario.db_cluster_parameter_group = Some( DbClusterParameterGroup::builder() .db_cluster_parameter_group_name("MockParamGroup") .build(), ); tokio::time::pause(); let assertions = tokio::spawn(async move { let clean_up = scenario.clean_up().await; assert!(clean_up.is_err()); let errs = clean_up.unwrap_err(); assert_eq!(errs.len(), 2); assert_matches!(errs.first(), Some(ScenarioError {message, context: _}) if message == "Failed to check instance state during deletion"); assert_matches!(errs.get(1), Some(ScenarioError {message, context: _}) if message == "Failed to check cluster state during deletion"); }); tokio::time::advance(Duration::from_secs(1)).await; // Wait for first Describe Instances tokio::time::advance(Duration::from_secs(1)).await; // Wait for second Describe Instances tokio::time::advance(Duration::from_secs(1)).await; // Wait for first Describe Cluster tokio::time::advance(Duration::from_secs(1)).await; // Wait for second Describe Cluster tokio::time::resume(); let _ = assertions.await; } ``` + API の詳細については、**「AWS SDK for Rust API リファレンス」の「[DeleteDBClusterParameterGroup](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.delete_db_cluster_parameter_group)」を参照してください。 ------ #### [ SAP ABAP ] **SDK for SAP ABAP** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/rds#code-examples)での設定と実行の方法を確認してください。 ``` TRY. lo_rds->deletedbclusterparamgroup( iv_dbclusterparamgroupname = iv_param_group_name ). CATCH /aws1/cx_rdsdbprmgrnotfndfault. " Re-raise exception - parameter group not found RAISE EXCEPTION TYPE /aws1/cx_rdsdbprmgrnotfndfault. CATCH /aws1/cx_rdsinvdbprmgrstatef00. " Re-raise exception - invalid state RAISE EXCEPTION TYPE /aws1/cx_rdsinvdbprmgrstatef00. ENDTRY. ``` + API の詳細については、「*AWS SDK for SAP ABAP API リファレンス*」の「[DeleteDBClusterParameterGroup](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html)」を参照してください。 ------ # AWS SDK `DeleteDBInstance`でを使用する次のサンプルコードは、`DeleteDBInstance` を使用する方法を説明しています。アクション例は、より大きなプログラムからのコードの抜粋であり、コンテキスト内で実行する必要があります。次のコード例で、このアクションのコンテキストを確認できます。 + [基本を学ぶ](aurora_example_aurora_Scenario_GetStartedClusters_section.md) ------ #### [ .NET ] **SDK for .NET (v4)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/Aurora#code-examples)での設定と実行の方法を確認してください。 ``` ///

/// Delete a particular DB instance. ///

/// Get the description of a DB cluster parameter group by name. ///

/// The name of the DB parameter group to describe. /// The parameter group description. public async Task DescribeCustomDBClusterParameterGroupAsync(string name) { var response = await _amazonRDS.DescribeDBClusterParameterGroupsAsync( new DescribeDBClusterParameterGroupsRequest() { DBClusterParameterGroupName = name }); return response.DBClusterParameterGroups.FirstOrDefault(); } ``` + API の詳細については、*AWS SDK for .NET API リファレンス*の「[DescribeDBClusterParameterGroups](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/DescribeDBClusterParameterGroups)」を参照してください。 ------ #### [ C\$1\$1 ] **SDK for C\$1\$1** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region (overrides config file). // clientConfig.region = "us-east-1"; Aws::RDS::RDSClient client(clientConfig); Aws::RDS::Model::DescribeDBClusterParameterGroupsRequest request; request.SetDBClusterParameterGroupName(CLUSTER_PARAMETER_GROUP_NAME); Aws::RDS::Model::DescribeDBClusterParameterGroupsOutcome outcome = client.DescribeDBClusterParameterGroups(request); if (outcome.IsSuccess()) { std::cout << "DB cluster parameter group named '" << CLUSTER_PARAMETER_GROUP_NAME << "' already exists." << std::endl; dbParameterGroupFamily = outcome.GetResult().GetDBClusterParameterGroups()[0].GetDBParameterGroupFamily(); } else { std::cerr << "Error with Aurora::DescribeDBClusterParameterGroups. " << outcome.GetError().GetMessage() << std::endl; return false; } ``` + API の詳細については、*AWS SDK for C\$1\$1 API リファレンス*の「[DescribeDBClusterParameterGroups](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/DescribeDBClusterParameterGroups)」を参照してください。 ------ #### [ Go ] **SDK for Go V2** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/gov2/aurora#code-examples)での設定と実行の方法を確認してください。 ``` import ( "context" "errors" "log" "github.com/aws/aws-sdk-go-v2/aws" "github.com/aws/aws-sdk-go-v2/service/rds" "github.com/aws/aws-sdk-go-v2/service/rds/types" ) type DbClusters struct { AuroraClient *rds.Client } // GetParameterGroup gets a DB cluster parameter group by name. func (clusters *DbClusters) GetParameterGroup(ctx context.Context, parameterGroupName string) ( *types.DBClusterParameterGroup, error) { output, err := clusters.AuroraClient.DescribeDBClusterParameterGroups( ctx, &rds.DescribeDBClusterParameterGroupsInput{ DBClusterParameterGroupName: aws.String(parameterGroupName), }) if err != nil { var notFoundError *types.DBParameterGroupNotFoundFault if errors.As(err, ¬FoundError) { log.Printf("Parameter group %v does not exist.\n", parameterGroupName) err = nil } else { log.Printf("Error getting parameter group %v: %v\n", parameterGroupName, err) } return nil, err } else { return &output.DBClusterParameterGroups[0], err } } ``` + API の詳細については、*AWS SDK for Go API リファレンス*の「[DescribeDBClusterParameterGroups](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.DescribeDBClusterParameterGroups)」を参照してください。 ------ #### [ Java ] **SDK for Java 2.x** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/rds#code-examples)での設定と実行の方法を確認してください。 ``` public static void describeDbClusterParameterGroups(RdsClient rdsClient, String dbClusterGroupName) { try { DescribeDbClusterParameterGroupsRequest groupsRequest = DescribeDbClusterParameterGroupsRequest.builder() .dbClusterParameterGroupName(dbClusterGroupName) .maxRecords(20) .build(); List groups = rdsClient.describeDBClusterParameterGroups(groupsRequest) .dbClusterParameterGroups(); for (DBClusterParameterGroup group : groups) { System.out.println("The group name is " + group.dbClusterParameterGroupName()); System.out.println("The group ARN is " + group.dbClusterParameterGroupArn()); } } catch (RdsException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } } ``` + API の詳細については、*AWS SDK for Java 2.x API リファレンス*の「[DescribeDBClusterParameterGroups](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/DescribeDBClusterParameterGroups)」を参照してください。 ------ #### [ Kotlin ] **SDK for Kotlin** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/rds#code-examples)での設定と実行の方法を確認してください。 ``` suspend fun describeDbClusterParameterGroups(dbClusterGroupName: String?) { val groupsRequest = DescribeDbClusterParameterGroupsRequest { dbClusterParameterGroupName = dbClusterGroupName maxRecords = 20 } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> val response = rdsClient.describeDbClusterParameterGroups(groupsRequest) response.dbClusterParameterGroups?.forEach { group -> println("The group name is ${group.dbClusterParameterGroupName}") println("The group ARN is ${group.dbClusterParameterGroupArn}") } } } ``` + API の詳細については、*AWS SDK for Kotlin API リファレンス*の「[DescribeDBClusterParameterGroups](https://sdk.amazonaws.com/kotlin/api/latest/index.html)」を参照してください。 ------ #### [ Python ] **SDK for Python (Boto3)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` class AuroraWrapper: """Encapsulates Aurora DB cluster actions.""" def __init__(self, rds_client): """ :param rds_client: A Boto3 Amazon Relational Database Service (Amazon RDS) client. """ self.rds_client = rds_client @classmethod def from_client(cls): """ Instantiates this class from a Boto3 client. """ rds_client = boto3.client("rds") return cls(rds_client) def get_parameter_group(self, parameter_group_name): """ Gets a DB cluster parameter group. :param parameter_group_name: The name of the parameter group to retrieve. :return: The requested parameter group. """ try: response = self.rds_client.describe_db_cluster_parameter_groups( DBClusterParameterGroupName=parameter_group_name ) parameter_group = response["DBClusterParameterGroups"][0] except ClientError as err: if err.response["Error"]["Code"] == "DBParameterGroupNotFound": logger.info("Parameter group %s does not exist.", parameter_group_name) else: logger.error( "Couldn't get parameter group %s. Here's why: %s: %s", parameter_group_name, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return parameter_group ``` + API の詳細については、*AWS SDK for Python (Boto3) API リファレンス*の「[DescribeDBClusterParameterGroups](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/DescribeDBClusterParameterGroups)」を参照してください。 ------ #### [ SAP ABAP ] **SDK for SAP ABAP** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/rds#code-examples)での設定と実行の方法を確認してください。 ``` TRY. DATA(lo_output) = lo_rds->describedbclusterparamgroups( iv_dbclusterparamgroupname = iv_param_group_name ). DATA(lt_param_groups) = lo_output->get_dbclusterparametergroups( ). IF lines( lt_param_groups ) > 0. oo_result = lt_param_groups[ 1 ]. ENDIF. CATCH /aws1/cx_rdsdbprmgrnotfndfault. ENDTRY. ``` + API の詳細については、「*AWS SDK for SAP ABAP API リファレンス*」の「[DescribeDBClusterParameterGroups](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html)」を参照してください。 ------ # AWS SDK `DescribeDBClusterParameters`でを使用する次のサンプルコードは、`DescribeDBClusterParameters` を使用する方法を説明しています。アクション例は、より大きなプログラムからのコードの抜粋であり、コンテキスト内で実行する必要があります。次のコード例で、このアクションのコンテキストを確認できます。 + [基本を学ぶ](aurora_example_aurora_Scenario_GetStartedClusters_section.md) ------ #### [ .NET ] **SDK for .NET (v4)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/Aurora#code-examples)での設定と実行の方法を確認してください。 ``` ///

/// Describe the cluster parameters in a parameter group. ///

/// The name of the parameter group. /// The optional name of the source filter. /// The collection of parameters. public async Task> DescribeDBClusterParametersInGroupAsync(string groupName, string? source = null) { var paramList = new List(); DescribeDBClusterParametersResponse response; var request = new DescribeDBClusterParametersRequest { DBClusterParameterGroupName = groupName, Source = source, }; // Get the full list if there are multiple pages. do { response = await _amazonRDS.DescribeDBClusterParametersAsync(request); paramList.AddRange(response.Parameters); request.Marker = response.Marker; } while (response.Marker is not null); return paramList; } ``` + API の詳細については、[AWS SDK for .NET API リファレンス](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/DescribeDBClusterParameters)の「*DescribeDBClusterParameters*」を参照してください。 ------ #### [ C\$1\$1 ] **SDK for C\$1\$1** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region (overrides config file). // clientConfig.region = "us-east-1"; Aws::RDS::RDSClient client(clientConfig); //! Routine which gets DB parameters using the 'DescribeDBClusterParameters' api. /*! \sa getDBCLusterParameters() \param parameterGroupName: The name of the cluster parameter group. \param namePrefix: Prefix string to filter results by parameter name. \param source: A source such as 'user', ignored if empty. \param parametersResult: Vector of 'Parameter' objects returned by the routine. \param client: 'RDSClient' instance. \return bool: Successful completion. */ bool AwsDoc::Aurora::getDBCLusterParameters(const Aws::String ¶meterGroupName, const Aws::String &namePrefix, const Aws::String &source, Aws::Vector ¶metersResult, const Aws::RDS::RDSClient &client) { Aws::String marker; // The marker is used for pagination. do { Aws::RDS::Model::DescribeDBClusterParametersRequest request; request.SetDBClusterParameterGroupName(CLUSTER_PARAMETER_GROUP_NAME); if (!marker.empty()) { request.SetMarker(marker); } if (!source.empty()) { request.SetSource(source); } Aws::RDS::Model::DescribeDBClusterParametersOutcome outcome = client.DescribeDBClusterParameters(request); if (outcome.IsSuccess()) { const Aws::Vector ¶meters = outcome.GetResult().GetParameters(); for (const Aws::RDS::Model::Parameter ¶meter: parameters) { if (!namePrefix.empty()) { if (parameter.GetParameterName().find(namePrefix) == 0) { parametersResult.push_back(parameter); } } else { parametersResult.push_back(parameter); } } marker = outcome.GetResult().GetMarker(); } else { std::cerr << "Error with Aurora::DescribeDBClusterParameters. " << outcome.GetError().GetMessage() << std::endl; return false; } } while (!marker.empty()); return true; } ``` + API の詳細については、*AWS SDK for C\$1\$1 API リファレンス*の「[DescribeDBClusterParameters](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/DescribeDBClusterParameters)」を参照してください。 ------ #### [ Go ] **SDK for Go V2** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/gov2/aurora#code-examples)での設定と実行の方法を確認してください。 ``` import ( "context" "errors" "log" "github.com/aws/aws-sdk-go-v2/aws" "github.com/aws/aws-sdk-go-v2/service/rds" "github.com/aws/aws-sdk-go-v2/service/rds/types" ) type DbClusters struct { AuroraClient *rds.Client } // GetParameters gets the parameters that are contained in a DB cluster parameter group. func (clusters *DbClusters) GetParameters(ctx context.Context, parameterGroupName string, source string) ( []types.Parameter, error) { var output *rds.DescribeDBClusterParametersOutput var params []types.Parameter var err error parameterPaginator := rds.NewDescribeDBClusterParametersPaginator(clusters.AuroraClient, &rds.DescribeDBClusterParametersInput{ DBClusterParameterGroupName: aws.String(parameterGroupName), Source: aws.String(source), }) for parameterPaginator.HasMorePages() { output, err = parameterPaginator.NextPage(ctx) if err != nil { log.Printf("Couldn't get paramaeters for %v: %v\n", parameterGroupName, err) break } else { params = append(params, output.Parameters...) } } return params, err } ``` + API の詳細については、[AWS SDK for Go API リファレンス](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.DescribeDBClusterParameters)の「*DescribeDBClusterParameters*」を参照してください。 ------ #### [ Java ] **SDK for Java 2.x** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/rds#code-examples)での設定と実行の方法を確認してください。 ``` public static void describeDbClusterParameters(RdsClient rdsClient, String dbCLusterGroupName, int flag) { try { DescribeDbClusterParametersRequest dbParameterGroupsRequest; if (flag == 0) { dbParameterGroupsRequest = DescribeDbClusterParametersRequest.builder() .dbClusterParameterGroupName(dbCLusterGroupName) .build(); } else { dbParameterGroupsRequest = DescribeDbClusterParametersRequest.builder() .dbClusterParameterGroupName(dbCLusterGroupName) .source("user") .build(); } DescribeDbClusterParametersResponse response = rdsClient .describeDBClusterParameters(dbParameterGroupsRequest); List dbParameters = response.parameters(); String paraName; for (Parameter para : dbParameters) { // Only print out information about either auto_increment_offset or // auto_increment_increment. paraName = para.parameterName(); if ((paraName.compareTo("auto_increment_offset") == 0) || (paraName.compareTo("auto_increment_increment ") == 0)) { System.out.println("*** The parameter name is " + paraName); System.out.println("*** The parameter value is " + para.parameterValue()); System.out.println("*** The parameter data type is " + para.dataType()); System.out.println("*** The parameter description is " + para.description()); System.out.println("*** The parameter allowed values is " + para.allowedValues()); } } } catch (RdsException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } } ``` + API の詳細については、[AWS SDK for Java 2.x API リファレンス](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/DescribeDBClusterParameters)の「*DescribeDBClusterParameters*」を参照してください。 ------ #### [ Kotlin ] **SDK for Kotlin** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/rds#code-examples)での設定と実行の方法を確認してください。 ``` suspend fun describeDbClusterParameters( dbCLusterGroupName: String?, flag: Int, ) { val dbParameterGroupsRequest: DescribeDbClusterParametersRequest dbParameterGroupsRequest = if (flag == 0) { DescribeDbClusterParametersRequest { dbClusterParameterGroupName = dbCLusterGroupName } } else { DescribeDbClusterParametersRequest { dbClusterParameterGroupName = dbCLusterGroupName source = "user" } } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> val response = rdsClient.describeDbClusterParameters(dbParameterGroupsRequest) response.parameters?.forEach { para -> // Only print out information about either auto_increment_offset or auto_increment_increment. val paraName = para.parameterName if (paraName != null) { if (paraName.compareTo("auto_increment_offset") == 0 || paraName.compareTo("auto_increment_increment ") == 0) { println("*** The parameter name is $paraName") println("*** The parameter value is ${para.parameterValue}") println("*** The parameter data type is ${para.dataType}") println("*** The parameter description is ${para.description}") println("*** The parameter allowed values is ${para.allowedValues}") } } } } } ``` + API の詳細については、*AWS SDK for Kotlin API リファレンス*の「[DescribeDBClusterParameters](https://sdk.amazonaws.com/kotlin/api/latest/index.html)」を参照してください。 ------ #### [ Python ] **SDK for Python (Boto3)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` class AuroraWrapper: """Encapsulates Aurora DB cluster actions.""" def __init__(self, rds_client): """ :param rds_client: A Boto3 Amazon Relational Database Service (Amazon RDS) client. """ self.rds_client = rds_client @classmethod def from_client(cls): """ Instantiates this class from a Boto3 client. """ rds_client = boto3.client("rds") return cls(rds_client) def get_parameters(self, parameter_group_name, name_prefix="", source=None): """ Gets the parameters that are contained in a DB cluster parameter group. :param parameter_group_name: The name of the parameter group to query. :param name_prefix: When specified, the retrieved list of parameters is filtered to contain only parameters that start with this prefix. :param source: When specified, only parameters from this source are retrieved. For example, a source of 'user' retrieves only parameters that were set by a user. :return: The list of requested parameters. """ try: kwargs = {"DBClusterParameterGroupName": parameter_group_name} if source is not None: kwargs["Source"] = source parameters = [] paginator = self.rds_client.get_paginator("describe_db_cluster_parameters") for page in paginator.paginate(**kwargs): parameters += [ p for p in page["Parameters"] if p["ParameterName"].startswith(name_prefix) ] except ClientError as err: logger.error( "Couldn't get parameters for %s. Here's why: %s: %s", parameter_group_name, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return parameters ``` + API の詳細については、*AWS SDK for Python (Boto3) API リファレンス*の「[DescribeDBClusterParameters](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/DescribeDBClusterParameters)」を参照してください。 ------ #### [ Rust ] **SDK for Rust** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/rustv1/examples/aurora#code-examples)での設定と実行の方法を確認してください。 ``` // Get the parameter group. rds.DescribeDbClusterParameterGroups // Get parameters in the group. This is a long list so you will have to paginate. Find the auto_increment_offset and auto_increment_increment parameters (by ParameterName). rds.DescribeDbClusterParameters // Parse the ParameterName, Description, and AllowedValues values and display them. pub async fn cluster_parameters(&self) -> Result, ScenarioError> { let parameters_output = self .rds .describe_db_cluster_parameters(DB_CLUSTER_PARAMETER_GROUP_NAME) .await; if let Err(err) = parameters_output { return Err(ScenarioError::new( format!("Failed to retrieve parameters for {DB_CLUSTER_PARAMETER_GROUP_NAME}"), &err, )); } let parameters = parameters_output .unwrap() .into_iter() .flat_map(|p| p.parameters.unwrap_or_default().into_iter()) .filter(|p| FILTER_PARAMETER_NAMES.contains(p.parameter_name().unwrap_or_default())) .map(AuroraScenarioParameter::from) .collect::>(); Ok(parameters) } pub async fn describe_db_cluster_parameters( &self, name: &str, ) -> Result, SdkError> { self.inner .describe_db_cluster_parameters() .db_cluster_parameter_group_name(name) .into_paginator() .send() .try_collect() .await } #[tokio::test] async fn test_scenario_cluster_parameters() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_describe_db_cluster_parameters() .with(eq("RustSDKCodeExamplesDBParameterGroup")) .return_once(|_| { Ok(vec![DescribeDbClusterParametersOutput::builder() .parameters(Parameter::builder().parameter_name("a").build()) .parameters(Parameter::builder().parameter_name("b").build()) .parameters( Parameter::builder() .parameter_name("auto_increment_offset") .build(), ) .parameters(Parameter::builder().parameter_name("c").build()) .parameters( Parameter::builder() .parameter_name("auto_increment_increment") .build(), ) .parameters(Parameter::builder().parameter_name("d").build()) .build()]) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.db_cluster_identifier = Some("RustSDKCodeExamplesDBCluster".into()); let params = scenario.cluster_parameters().await.expect("cluster params"); let names: Vec = params.into_iter().map(|p| p.name).collect(); assert_eq!( names, vec!["auto_increment_offset", "auto_increment_increment"] ); } #[tokio::test] async fn test_scenario_cluster_parameters_error() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_describe_db_cluster_parameters() .with(eq("RustSDKCodeExamplesDBParameterGroup")) .return_once(|_| { Err(SdkError::service_error( DescribeDBClusterParametersError::unhandled(Box::new(Error::new( ErrorKind::Other, "describe_db_cluster_parameters_error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.db_cluster_identifier = Some("RustSDKCodeExamplesDBCluster".into()); let params = scenario.cluster_parameters().await; assert_matches!(params, Err(ScenarioError { message, context: _ }) if message == "Failed to retrieve parameters for RustSDKCodeExamplesDBParameterGroup"); } ``` + API の詳細については、*AWS SDK for Rust API リファレンス*の「[DescribeDBClusterParameters](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.describe_db_cluster_parameters)」を参照してください。 ------ #### [ SAP ABAP ] **SDK for SAP ABAP** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/rds#code-examples)での設定と実行の方法を確認してください。 ``` TRY. DATA lv_marker TYPE /aws1/rdsstring VALUE ''. DATA lt_all_parameters TYPE /aws1/cl_rdsparameter=>tt_parameterslist. DO. DATA(lo_output) = lo_rds->describedbclusterparameters( iv_dbclusterparamgroupname = iv_param_group_name iv_source = iv_source iv_marker = lv_marker ). LOOP AT lo_output->get_parameters( ) INTO DATA(lo_param). IF iv_name_prefix IS INITIAL OR lo_param->get_parametername( ) CP |{ iv_name_prefix }*|. APPEND lo_param TO lt_all_parameters. ENDIF. ENDLOOP. lv_marker = lo_output->get_marker( ). IF lv_marker IS INITIAL. EXIT. ENDIF. ENDDO. ot_parameters = lt_all_parameters. CATCH /aws1/cx_rdsdbprmgrnotfndfault. " Re-raise exception - parameter group not found RAISE EXCEPTION TYPE /aws1/cx_rdsdbprmgrnotfndfault. ENDTRY. ``` + API の詳細については、「*AWS SDK for SAP ABAP API リファレンス*」の「[DescribeDBClusterParameters](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html)」を参照してください。 ------ # AWS SDK `DescribeDBClusterSnapshots`でを使用する次のサンプルコードは、`DescribeDBClusterSnapshots` を使用する方法を説明しています。アクション例は、より大きなプログラムからのコードの抜粋であり、コンテキスト内で実行する必要があります。次のコード例で、このアクションのコンテキストを確認できます。 + [基本を学ぶ](aurora_example_aurora_Scenario_GetStartedClusters_section.md) ------ #### [ .NET ] **SDK for .NET (v4)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/Aurora#code-examples)での設定と実行の方法を確認してください。 ``` ///

/// Return a list of DB snapshots for a particular DB cluster. ///

/// DB cluster identifier. /// List of DB snapshots. public async Task> DescribeDBClusterSnapshotsByIdentifierAsync(string dbClusterIdentifier) { var results = new List(); DescribeDBClusterSnapshotsResponse response; DescribeDBClusterSnapshotsRequest request = new DescribeDBClusterSnapshotsRequest { DBClusterIdentifier = dbClusterIdentifier }; // Get the full list if there are multiple pages. do { response = await _amazonRDS.DescribeDBClusterSnapshotsAsync(request); results.AddRange(response.DBClusterSnapshots); request.Marker = response.Marker; } while (response.Marker is not null); return results; } ``` + API の詳細については、*AWS SDK for .NET API リファレンス*の「[DescribeDBClusterSnapshots](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/DescribeDBClusterSnapshots)」を参照してください。 ------ #### [ C\$1\$1 ] **SDK for C\$1\$1** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region (overrides config file). // clientConfig.region = "us-east-1"; Aws::RDS::RDSClient client(clientConfig); Aws::RDS::Model::DescribeDBClusterSnapshotsRequest request; request.SetDBClusterSnapshotIdentifier(snapshotID); Aws::RDS::Model::DescribeDBClusterSnapshotsOutcome outcome = client.DescribeDBClusterSnapshots(request); if (outcome.IsSuccess()) { snapshot = outcome.GetResult().GetDBClusterSnapshots()[0]; } else { std::cerr << "Error with Aurora::DescribeDBClusterSnapshots. " << outcome.GetError().GetMessage() << std::endl; cleanUpResources(CLUSTER_PARAMETER_GROUP_NAME, DB_CLUSTER_IDENTIFIER, DB_INSTANCE_IDENTIFIER, client); return false; } ``` + API の詳細については、*AWS SDK for C\$1\$1 API リファレンス*の「[DescribeDBClusterSnapshots](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/DescribeDBClusterSnapshots)」を参照してください。 ------ #### [ Go ] **SDK for Go V2** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/gov2/aurora#code-examples)での設定と実行の方法を確認してください。 ``` import ( "context" "errors" "log" "github.com/aws/aws-sdk-go-v2/aws" "github.com/aws/aws-sdk-go-v2/service/rds" "github.com/aws/aws-sdk-go-v2/service/rds/types" ) type DbClusters struct { AuroraClient *rds.Client } // GetClusterSnapshot gets a DB cluster snapshot. func (clusters *DbClusters) GetClusterSnapshot(ctx context.Context, snapshotName string) (*types.DBClusterSnapshot, error) { output, err := clusters.AuroraClient.DescribeDBClusterSnapshots(ctx, &rds.DescribeDBClusterSnapshotsInput{ DBClusterSnapshotIdentifier: aws.String(snapshotName), }) if err != nil { log.Printf("Couldn't get snapshot %v: %v\n", snapshotName, err) return nil, err } else { return &output.DBClusterSnapshots[0], nil } } ``` + API の詳細については、*AWS SDK for Go API リファレンス*の「[DescribeDBClusterSnapshots](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.DescribeDBClusterSnapshots)」を参照してください。 ------ #### [ Java ] **SDK for Java 2.x** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/rds#code-examples)での設定と実行の方法を確認してください。 ``` public static void waitForSnapshotReady(RdsClient rdsClient, String dbSnapshotIdentifier, String dbInstanceClusterIdentifier) { try { boolean snapshotReady = false; String snapshotReadyStr; System.out.println("Waiting for the snapshot to become available."); DescribeDbClusterSnapshotsRequest snapshotsRequest = DescribeDbClusterSnapshotsRequest.builder() .dbClusterSnapshotIdentifier(dbSnapshotIdentifier) .dbClusterIdentifier(dbInstanceClusterIdentifier) .build(); while (!snapshotReady) { DescribeDbClusterSnapshotsResponse response = rdsClient.describeDBClusterSnapshots(snapshotsRequest); List snapshotList = response.dbClusterSnapshots(); for (DBClusterSnapshot snapshot : snapshotList) { snapshotReadyStr = snapshot.status(); if (snapshotReadyStr.contains("available")) { snapshotReady = true; } else { System.out.println("."); Thread.sleep(sleepTime * 5000); } } } System.out.println("The Snapshot is available!"); } catch (RdsException | InterruptedException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } } ``` + API の詳細については、*AWS SDK for Java 2.x API リファレンス*の「[DescribeDBClusterSnapshots](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/DescribeDBClusterSnapshots)」を参照してください。 ------ #### [ Kotlin ] **SDK for Kotlin** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/rds#code-examples)での設定と実行の方法を確認してください。 ``` suspend fun waitSnapshotReady( dbSnapshotIdentifier: String?, dbInstanceClusterIdentifier: String?, ) { var snapshotReady = false var snapshotReadyStr: String println("Waiting for the snapshot to become available.") val snapshotsRequest = DescribeDbClusterSnapshotsRequest { dbClusterSnapshotIdentifier = dbSnapshotIdentifier dbClusterIdentifier = dbInstanceClusterIdentifier } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> while (!snapshotReady) { val response = rdsClient.describeDbClusterSnapshots(snapshotsRequest) val snapshotList = response.dbClusterSnapshots if (snapshotList != null) { for (snapshot in snapshotList) { snapshotReadyStr = snapshot.status.toString() if (snapshotReadyStr.contains("available")) { snapshotReady = true } else { println(".") delay(slTime * 5000) } } } } } println("The Snapshot is available!") } ``` + API の詳細については、*AWS SDK for Kotlin API リファレンス*の「[DescribeDBClusterSnapshots](https://sdk.amazonaws.com/kotlin/api/latest/index.html)」を参照してください。 ------ #### [ Python ] **SDK for Python (Boto3)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` class AuroraWrapper: """Encapsulates Aurora DB cluster actions.""" def __init__(self, rds_client): """ :param rds_client: A Boto3 Amazon Relational Database Service (Amazon RDS) client. """ self.rds_client = rds_client @classmethod def from_client(cls): """ Instantiates this class from a Boto3 client. """ rds_client = boto3.client("rds") return cls(rds_client) def get_cluster_snapshot(self, snapshot_id): """ Gets a DB cluster snapshot. :param snapshot_id: The ID of the snapshot to retrieve. :return: The retrieved snapshot. """ try: response = self.rds_client.describe_db_cluster_snapshots( DBClusterSnapshotIdentifier=snapshot_id ) snapshot = response["DBClusterSnapshots"][0] except ClientError as err: logger.error( "Couldn't get DB cluster snapshot %s. Here's why: %s: %s", snapshot_id, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return snapshot ``` + API の詳細については、*AWS SDK for Python (Boto3) API リファレンス*の「[DescribeDBClusterSnapshots](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/DescribeDBClusterSnapshots)」を参照してください。 ------ # AWS SDK `DescribeDBClusters`でを使用する次のサンプルコードは、`DescribeDBClusters` を使用する方法を説明しています。アクション例は、より大きなプログラムからのコードの抜粋であり、コンテキスト内で実行する必要があります。次のコード例で、このアクションのコンテキストを確認できます。 + [基本を学ぶ](aurora_example_aurora_Scenario_GetStartedClusters_section.md) ------ #### [ .NET ] **SDK for .NET (v4)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/Aurora#code-examples)での設定と実行の方法を確認してください。 ``` ///

/// Returns a list of DB clusters. ///

/// Optional name of a specific DB cluster. /// List of DB clusters. public async Task> DescribeDBClustersPagedAsync(string? dbClusterIdentifier = null) { var results = new List(); DescribeDBClustersResponse response; DescribeDBClustersRequest request = new DescribeDBClustersRequest { DBClusterIdentifier = dbClusterIdentifier }; // Get the full list if there are multiple pages. do { response = await _amazonRDS.DescribeDBClustersAsync(request); if (response.DBClusters != null) { results.AddRange(response.DBClusters); } request.Marker = response.Marker; } while (response.Marker is not null); return results; } ``` + API の詳細については、*AWS SDK for .NET API リファレンス*の「[DescribeDBClusters](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/DescribeDBClusters)」を参照してください。 ------ #### [ C\$1\$1 ] **SDK for C\$1\$1** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region (overrides config file). // clientConfig.region = "us-east-1"; Aws::RDS::RDSClient client(clientConfig); //! Routine which gets a DB cluster description. /*! \sa describeDBCluster() \param dbClusterIdentifier: A DB cluster identifier. \param clusterResult: The 'DBCluster' object containing the description. \param client: 'RDSClient' instance. \return bool: Successful completion. */ bool AwsDoc::Aurora::describeDBCluster(const Aws::String &dbClusterIdentifier, Aws::RDS::Model::DBCluster &clusterResult, const Aws::RDS::RDSClient &client) { Aws::RDS::Model::DescribeDBClustersRequest request; request.SetDBClusterIdentifier(dbClusterIdentifier); Aws::RDS::Model::DescribeDBClustersOutcome outcome = client.DescribeDBClusters(request); bool result = true; if (outcome.IsSuccess()) { clusterResult = outcome.GetResult().GetDBClusters()[0]; } else if (outcome.GetError().GetErrorType() != Aws::RDS::RDSErrors::D_B_CLUSTER_NOT_FOUND_FAULT) { result = false; std::cerr << "Error with Aurora::GDescribeDBClusters. " << outcome.GetError().GetMessage() << std::endl; } // This example does not log an error if the DB cluster does not exist. // Instead, clusterResult is set to empty. else { clusterResult = Aws::RDS::Model::DBCluster(); } return result; } ``` + API の詳細については、AWS SDK for C\$1\$1 API リファレンスの**「[DescribeDBClusters](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/DescribeDBClusters)」を参照してください。 ------ #### [ Go ] **SDK for Go V2** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/gov2/aurora#code-examples)での設定と実行の方法を確認してください。 ``` import ( "context" "errors" "log" "github.com/aws/aws-sdk-go-v2/aws" "github.com/aws/aws-sdk-go-v2/service/rds" "github.com/aws/aws-sdk-go-v2/service/rds/types" ) type DbClusters struct { AuroraClient *rds.Client } // GetDbCluster gets data about an Aurora DB cluster. func (clusters *DbClusters) GetDbCluster(ctx context.Context, clusterName string) (*types.DBCluster, error) { output, err := clusters.AuroraClient.DescribeDBClusters(ctx, &rds.DescribeDBClustersInput{ DBClusterIdentifier: aws.String(clusterName), }) if err != nil { var notFoundError *types.DBClusterNotFoundFault if errors.As(err, ¬FoundError) { log.Printf("DB cluster %v does not exist.\n", clusterName) err = nil } else { log.Printf("Couldn't get DB cluster %v: %v\n", clusterName, err) } return nil, err } else { return &output.DBClusters[0], err } } ``` + API の詳細については、*AWS SDK for Go API リファレンス*の「[DescribeDBClusters](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.DescribeDBClusters)」を参照してください。 ------ #### [ Java ] **SDK for Java 2.x** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/rds#code-examples)での設定と実行の方法を確認してください。 ``` public static void describeDbClusterParameters(RdsClient rdsClient, String dbCLusterGroupName, int flag) { try { DescribeDbClusterParametersRequest dbParameterGroupsRequest; if (flag == 0) { dbParameterGroupsRequest = DescribeDbClusterParametersRequest.builder() .dbClusterParameterGroupName(dbCLusterGroupName) .build(); } else { dbParameterGroupsRequest = DescribeDbClusterParametersRequest.builder() .dbClusterParameterGroupName(dbCLusterGroupName) .source("user") .build(); } DescribeDbClusterParametersResponse response = rdsClient .describeDBClusterParameters(dbParameterGroupsRequest); List dbParameters = response.parameters(); String paraName; for (Parameter para : dbParameters) { // Only print out information about either auto_increment_offset or // auto_increment_increment. paraName = para.parameterName(); if ((paraName.compareTo("auto_increment_offset") == 0) || (paraName.compareTo("auto_increment_increment ") == 0)) { System.out.println("*** The parameter name is " + paraName); System.out.println("*** The parameter value is " + para.parameterValue()); System.out.println("*** The parameter data type is " + para.dataType()); System.out.println("*** The parameter description is " + para.description()); System.out.println("*** The parameter allowed values is " + para.allowedValues()); } } } catch (RdsException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } } ``` + API の詳細については、*AWS SDK for Java 2.x API リファレンス*の「[DescribeDBClusters](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/DescribeDBClusters)」を参照してください。 ------ #### [ Kotlin ] **SDK for Kotlin** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/rds#code-examples)での設定と実行の方法を確認してください。 ``` suspend fun describeDbClusterParameters( dbCLusterGroupName: String?, flag: Int, ) { val dbParameterGroupsRequest: DescribeDbClusterParametersRequest dbParameterGroupsRequest = if (flag == 0) { DescribeDbClusterParametersRequest { dbClusterParameterGroupName = dbCLusterGroupName } } else { DescribeDbClusterParametersRequest { dbClusterParameterGroupName = dbCLusterGroupName source = "user" } } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> val response = rdsClient.describeDbClusterParameters(dbParameterGroupsRequest) response.parameters?.forEach { para -> // Only print out information about either auto_increment_offset or auto_increment_increment. val paraName = para.parameterName if (paraName != null) { if (paraName.compareTo("auto_increment_offset") == 0 || paraName.compareTo("auto_increment_increment ") == 0) { println("*** The parameter name is $paraName") println("*** The parameter value is ${para.parameterValue}") println("*** The parameter data type is ${para.dataType}") println("*** The parameter description is ${para.description}") println("*** The parameter allowed values is ${para.allowedValues}") } } } } } ``` + API の詳細については、*AWS SDK for Kotlin API リファレンス*の「[DescribeDBClusters](https://sdk.amazonaws.com/kotlin/api/latest/index.html)」を参照してください。 ------ #### [ Python ] **SDK for Python (Boto3)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` class AuroraWrapper: """Encapsulates Aurora DB cluster actions.""" def __init__(self, rds_client): """ :param rds_client: A Boto3 Amazon Relational Database Service (Amazon RDS) client. """ self.rds_client = rds_client @classmethod def from_client(cls): """ Instantiates this class from a Boto3 client. """ rds_client = boto3.client("rds") return cls(rds_client) def get_db_cluster(self, cluster_name): """ Gets data about an Aurora DB cluster. :param cluster_name: The name of the DB cluster to retrieve. :return: The retrieved DB cluster. """ try: response = self.rds_client.describe_db_clusters( DBClusterIdentifier=cluster_name ) cluster = response["DBClusters"][0] except ClientError as err: if err.response["Error"]["Code"] == "DBClusterNotFoundFault": logger.info("Cluster %s does not exist.", cluster_name) else: logger.error( "Couldn't verify the existence of DB cluster %s. Here's why: %s: %s", cluster_name, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return cluster ``` + API の詳細については、*AWS SDK for Python (Boto3) API リファレンス*の「[DescribeDBClusters](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/DescribeDBClusters)」を参照してください。 ------ #### [ Rust ] **SDK for Rust** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/rustv1/examples/aurora#code-examples)での設定と実行の方法を確認してください。 ``` // Get a list of allowed engine versions. rds.DescribeDbEngineVersions(Engine='aurora-mysql', DBParameterGroupFamily=) // Create an Aurora DB cluster database cluster that contains a MySql database and uses the parameter group you created. // Wait for DB cluster to be ready. Call rds.DescribeDBClusters and check for Status == 'available'. // Get a list of instance classes available for the selected engine and engine version. rds.DescribeOrderableDbInstanceOptions(Engine='mysql', EngineVersion=). // Create a database instance in the cluster. // Wait for DB instance to be ready. Call rds.DescribeDbInstances and check for DBInstanceStatus == 'available'. pub async fn start_cluster_and_instance(&mut self) -> Result<(), ScenarioError> { if self.password.is_none() { return Err(ScenarioError::with( "Must set Secret Password before starting a cluster", )); } let create_db_cluster = self .rds .create_db_cluster( DB_CLUSTER_IDENTIFIER, DB_CLUSTER_PARAMETER_GROUP_NAME, DB_ENGINE, self.engine_version.as_deref().expect("engine version"), self.username.as_deref().expect("username"), self.password .replace(SecretString::new("".to_string())) .expect("password"), ) .await; if let Err(err) = create_db_cluster { return Err(ScenarioError::new( "Failed to create DB Cluster with cluster group", &err, )); } self.db_cluster_identifier = create_db_cluster .unwrap() .db_cluster .and_then(|c| c.db_cluster_identifier); if self.db_cluster_identifier.is_none() { return Err(ScenarioError::with("Created DB Cluster missing Identifier")); } info!( "Started a db cluster: {}", self.db_cluster_identifier .as_deref() .unwrap_or("Missing ARN") ); let create_db_instance = self .rds .create_db_instance( self.db_cluster_identifier.as_deref().expect("cluster name"), DB_INSTANCE_IDENTIFIER, self.instance_class.as_deref().expect("instance class"), DB_ENGINE, ) .await; if let Err(err) = create_db_instance { return Err(ScenarioError::new( "Failed to create Instance in DB Cluster", &err, )); } self.db_instance_identifier = create_db_instance .unwrap() .db_instance .and_then(|i| i.db_instance_identifier); // Cluster creation can take up to 20 minutes to become available let cluster_max_wait = Duration::from_secs(20 * 60); let waiter = Waiter::builder().max(cluster_max_wait).build(); while waiter.sleep().await.is_ok() { let cluster = self .rds .describe_db_clusters( self.db_cluster_identifier .as_deref() .expect("cluster identifier"), ) .await; if let Err(err) = cluster { warn!(?err, "Failed to describe cluster while waiting for ready"); continue; } let instance = self .rds .describe_db_instance( self.db_instance_identifier .as_deref() .expect("instance identifier"), ) .await; if let Err(err) = instance { return Err(ScenarioError::new( "Failed to find instance for cluster", &err, )); } let instances_available = instance .unwrap() .db_instances() .iter() .all(|instance| instance.db_instance_status() == Some("Available")); let endpoints = self .rds .describe_db_cluster_endpoints( self.db_cluster_identifier .as_deref() .expect("cluster identifier"), ) .await; if let Err(err) = endpoints { return Err(ScenarioError::new( "Failed to find endpoint for cluster", &err, )); } let endpoints_available = endpoints .unwrap() .db_cluster_endpoints() .iter() .all(|endpoint| endpoint.status() == Some("available")); if instances_available && endpoints_available { return Ok(()); } } Err(ScenarioError::with("timed out waiting for cluster")) } pub async fn describe_db_clusters( &self, id: &str, ) -> Result> { self.inner .describe_db_clusters() .db_cluster_identifier(id) .send() .await } #[tokio::test] async fn test_start_cluster_and_instance() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .withf(|id, params, engine, version, username, password| { assert_eq!(id, "RustSDKCodeExamplesDBCluster"); assert_eq!(params, "RustSDKCodeExamplesDBParameterGroup"); assert_eq!(engine, "aurora-mysql"); assert_eq!(version, "aurora-mysql8.0"); assert_eq!(username, "test username"); assert_eq!(password.expose_secret(), "test password"); true }) .return_once(|id, _, _, _, _, _| { Ok(CreateDbClusterOutput::builder() .db_cluster(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds .expect_create_db_instance() .withf(|cluster, name, class, engine| { assert_eq!(cluster, "RustSDKCodeExamplesDBCluster"); assert_eq!(name, "RustSDKCodeExamplesDBInstance"); assert_eq!(class, "m5.large"); assert_eq!(engine, "aurora-mysql"); true }) .return_once(|cluster, name, class, _| { Ok(CreateDbInstanceOutput::builder() .db_instance( DbInstance::builder() .db_cluster_identifier(cluster) .db_instance_identifier(name) .db_instance_class(class) .build(), ) .build()) }); mock_rds .expect_describe_db_clusters() .with(eq("RustSDKCodeExamplesDBCluster")) .return_once(|id| { Ok(DescribeDbClustersOutput::builder() .db_clusters(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds .expect_describe_db_instance() .with(eq("RustSDKCodeExamplesDBInstance")) .return_once(|name| { Ok(DescribeDbInstancesOutput::builder() .db_instances( DbInstance::builder() .db_instance_identifier(name) .db_instance_status("Available") .build(), ) .build()) }); mock_rds .expect_describe_db_cluster_endpoints() .with(eq("RustSDKCodeExamplesDBCluster")) .return_once(|_| { Ok(DescribeDbClusterEndpointsOutput::builder() .db_cluster_endpoints(DbClusterEndpoint::builder().status("available").build()) .build()) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); tokio::time::pause(); let assertions = tokio::spawn(async move { let create = scenario.start_cluster_and_instance().await; assert!(create.is_ok()); assert!(scenario .password .replace(SecretString::new("BAD SECRET".into())) .unwrap() .expose_secret() .is_empty()); assert_eq!( scenario.db_cluster_identifier, Some("RustSDKCodeExamplesDBCluster".into()) ); }); tokio::time::advance(Duration::from_secs(1)).await; tokio::time::resume(); let _ = assertions.await; } #[tokio::test] async fn test_start_cluster_and_instance_cluster_create_error() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .return_once(|_, _, _, _, _, _| { Err(SdkError::service_error( CreateDBClusterError::unhandled(Box::new(Error::new( ErrorKind::Other, "create db cluster error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); let create = scenario.start_cluster_and_instance().await; assert_matches!(create, Err(ScenarioError { message, context: _}) if message == "Failed to create DB Cluster with cluster group") } #[tokio::test] async fn test_start_cluster_and_instance_cluster_create_missing_id() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .return_once(|_, _, _, _, _, _| { Ok(CreateDbClusterOutput::builder() .db_cluster(DbCluster::builder().build()) .build()) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); let create = scenario.start_cluster_and_instance().await; assert_matches!(create, Err(ScenarioError { message, context:_ }) if message == "Created DB Cluster missing Identifier"); } #[tokio::test] async fn test_start_cluster_and_instance_instance_create_error() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .withf(|id, params, engine, version, username, password| { assert_eq!(id, "RustSDKCodeExamplesDBCluster"); assert_eq!(params, "RustSDKCodeExamplesDBParameterGroup"); assert_eq!(engine, "aurora-mysql"); assert_eq!(version, "aurora-mysql8.0"); assert_eq!(username, "test username"); assert_eq!(password.expose_secret(), "test password"); true }) .return_once(|id, _, _, _, _, _| { Ok(CreateDbClusterOutput::builder() .db_cluster(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds .expect_create_db_instance() .return_once(|_, _, _, _| { Err(SdkError::service_error( CreateDBInstanceError::unhandled(Box::new(Error::new( ErrorKind::Other, "create db instance error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); let create = scenario.start_cluster_and_instance().await; assert_matches!(create, Err(ScenarioError { message, context: _ }) if message == "Failed to create Instance in DB Cluster") } #[tokio::test] async fn test_start_cluster_and_instance_wait_hiccup() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster() .withf(|id, params, engine, version, username, password| { assert_eq!(id, "RustSDKCodeExamplesDBCluster"); assert_eq!(params, "RustSDKCodeExamplesDBParameterGroup"); assert_eq!(engine, "aurora-mysql"); assert_eq!(version, "aurora-mysql8.0"); assert_eq!(username, "test username"); assert_eq!(password.expose_secret(), "test password"); true }) .return_once(|id, _, _, _, _, _| { Ok(CreateDbClusterOutput::builder() .db_cluster(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds .expect_create_db_instance() .withf(|cluster, name, class, engine| { assert_eq!(cluster, "RustSDKCodeExamplesDBCluster"); assert_eq!(name, "RustSDKCodeExamplesDBInstance"); assert_eq!(class, "m5.large"); assert_eq!(engine, "aurora-mysql"); true }) .return_once(|cluster, name, class, _| { Ok(CreateDbInstanceOutput::builder() .db_instance( DbInstance::builder() .db_cluster_identifier(cluster) .db_instance_identifier(name) .db_instance_class(class) .build(), ) .build()) }); mock_rds .expect_describe_db_clusters() .with(eq("RustSDKCodeExamplesDBCluster")) .times(1) .returning(|_| { Err(SdkError::service_error( DescribeDBClustersError::unhandled(Box::new(Error::new( ErrorKind::Other, "describe cluster error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }) .with(eq("RustSDKCodeExamplesDBCluster")) .times(1) .returning(|id| { Ok(DescribeDbClustersOutput::builder() .db_clusters(DbCluster::builder().db_cluster_identifier(id).build()) .build()) }); mock_rds.expect_describe_db_instance().return_once(|name| { Ok(DescribeDbInstancesOutput::builder() .db_instances( DbInstance::builder() .db_instance_identifier(name) .db_instance_status("Available") .build(), ) .build()) }); mock_rds .expect_describe_db_cluster_endpoints() .return_once(|_| { Ok(DescribeDbClusterEndpointsOutput::builder() .db_cluster_endpoints(DbClusterEndpoint::builder().status("available").build()) .build()) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_version = Some("aurora-mysql8.0".into()); scenario.instance_class = Some("m5.large".into()); scenario.username = Some("test username".into()); scenario.password = Some(SecretString::new("test password".into())); tokio::time::pause(); let assertions = tokio::spawn(async move { let create = scenario.start_cluster_and_instance().await; assert!(create.is_ok()); }); tokio::time::advance(Duration::from_secs(1)).await; tokio::time::advance(Duration::from_secs(1)).await; tokio::time::resume(); let _ = assertions.await; } ``` + API の詳細については、「*AWS SDK for Rust API リファレンス*」の「[DescribeDBClusters](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.describe_db_clusters)」を参照してください。 ------ # AWS SDK `DescribeDBEngineVersions`でを使用する次のサンプルコードは、`DescribeDBEngineVersions` を使用する方法を説明しています。アクション例は、より大きなプログラムからのコードの抜粋であり、コンテキスト内で実行する必要があります。次のコード例で、このアクションのコンテキストを確認できます。 + [基本を学ぶ](aurora_example_aurora_Scenario_GetStartedClusters_section.md) ------ #### [ .NET ] **SDK for .NET (v4)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/Aurora#code-examples)での設定と実行の方法を確認してください。 ``` ///

/// Get a list of DB engine versions for a particular DB engine. ///

/// The name of the engine. /// Optional parameter group family name. /// A list of DBEngineVersions. public async Task> DescribeDBEngineVersionsForEngineAsync(string engine, string? parameterGroupFamily = null) { var response = await _amazonRDS.DescribeDBEngineVersionsAsync( new DescribeDBEngineVersionsRequest() { Engine = engine, DBParameterGroupFamily = parameterGroupFamily }); return response.DBEngineVersions; } ``` + API の詳細については、*AWS SDK for .NET API リファレンス*の「[DescribeDBEngineVersions](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/DescribeDBEngineVersions)」を参照してください。 ------ #### [ C\$1\$1 ] **SDK for C\$1\$1** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region (overrides config file). // clientConfig.region = "us-east-1"; Aws::RDS::RDSClient client(clientConfig); //! Routine which gets available DB engine versions for an engine name and //! an optional parameter group family. /*! \sa getDBEngineVersions() \param engineName: A DB engine name. \param parameterGroupFamily: A parameter group family name, ignored if empty. \param engineVersionsResult: Vector of 'DBEngineVersion' objects returned by the routine. \param client: 'RDSClient' instance. \return bool: Successful completion. */ bool AwsDoc::Aurora::getDBEngineVersions(const Aws::String &engineName, const Aws::String ¶meterGroupFamily, Aws::Vector &engineVersionsResult, const Aws::RDS::RDSClient &client) { Aws::RDS::Model::DescribeDBEngineVersionsRequest request; request.SetEngine(engineName); if (!parameterGroupFamily.empty()) { request.SetDBParameterGroupFamily(parameterGroupFamily); } engineVersionsResult.clear(); Aws::String marker; // The marker is used for pagination. do { if (!marker.empty()) { request.SetMarker(marker); } Aws::RDS::Model::DescribeDBEngineVersionsOutcome outcome = client.DescribeDBEngineVersions(request); if (outcome.IsSuccess()) { const Aws::Vector &engineVersions = outcome.GetResult().GetDBEngineVersions(); engineVersionsResult.insert(engineVersionsResult.end(), engineVersions.begin(), engineVersions.end()); marker = outcome.GetResult().GetMarker(); } else { std::cerr << "Error with Aurora::DescribeDBEngineVersionsRequest. " << outcome.GetError().GetMessage() << std::endl; } } while (!marker.empty()); return true; } ``` + API の詳細については、*AWS SDK for C\$1\$1 API リファレンス*の「[DescribeDBEngineVersions](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/DescribeDBEngineVersions)」を参照してください。 ------ #### [ Go ] **SDK for Go V2** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/gov2/aurora#code-examples)での設定と実行の方法を確認してください。 ``` import ( "context" "errors" "log" "github.com/aws/aws-sdk-go-v2/aws" "github.com/aws/aws-sdk-go-v2/service/rds" "github.com/aws/aws-sdk-go-v2/service/rds/types" ) type DbClusters struct { AuroraClient *rds.Client } // GetEngineVersions gets database engine versions that are available for the specified engine // and parameter group family. func (clusters *DbClusters) GetEngineVersions(ctx context.Context, engine string, parameterGroupFamily string) ( []types.DBEngineVersion, error) { output, err := clusters.AuroraClient.DescribeDBEngineVersions(ctx, &rds.DescribeDBEngineVersionsInput{ Engine: aws.String(engine), DBParameterGroupFamily: aws.String(parameterGroupFamily), }) if err != nil { log.Printf("Couldn't get engine versions for %v: %v\n", engine, err) return nil, err } else { return output.DBEngineVersions, nil } } ``` + API の詳細については、*AWS SDK for Go API リファレンス*の「[DescribeDBEngineVersions](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.DescribeDBEngineVersions)」を参照してください。 ------ #### [ Java ] **SDK for Java 2.x** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/rds#code-examples)での設定と実行の方法を確認してください。 ``` public static void describeDBEngines(RdsClient rdsClient) { try { DescribeDbEngineVersionsRequest engineVersionsRequest = DescribeDbEngineVersionsRequest.builder() .engine("aurora-mysql") .defaultOnly(true) .maxRecords(20) .build(); DescribeDbEngineVersionsResponse response = rdsClient.describeDBEngineVersions(engineVersionsRequest); List engines = response.dbEngineVersions(); // Get all DBEngineVersion objects. for (DBEngineVersion engineOb : engines) { System.out.println("The name of the DB parameter group family for the database engine is " + engineOb.dbParameterGroupFamily()); System.out.println("The name of the database engine " + engineOb.engine()); System.out.println("The version number of the database engine " + engineOb.engineVersion()); } } catch (RdsException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } } ``` + API の詳細については、*AWS SDK for Java 2.x API リファレンス*の「[DescribeDBEngineVersions](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/DescribeDBEngineVersions)」を参照してください。 ------ #### [ Kotlin ] **SDK for Kotlin** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/rds#code-examples)での設定と実行の方法を確認してください。 ``` // Get a list of allowed engine versions. suspend fun getAllowedClusterEngines(dbParameterGroupFamilyVal: String?) { val versionsRequest = DescribeDbEngineVersionsRequest { dbParameterGroupFamily = dbParameterGroupFamilyVal engine = "aurora-mysql" } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> val response = rdsClient.describeDbEngineVersions(versionsRequest) response.dbEngineVersions?.forEach { dbEngine -> println("The engine version is ${dbEngine.engineVersion}") println("The engine description is ${dbEngine.dbEngineDescription}") } } } ``` + API の詳細については、*AWS SDK for Kotlin API リファレンス*の「[DescribeDBEngineVersions](https://sdk.amazonaws.com/kotlin/api/latest/index.html)」を参照してください。 ------ #### [ Python ] **SDK for Python (Boto3)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` class AuroraWrapper: """Encapsulates Aurora DB cluster actions.""" def __init__(self, rds_client): """ :param rds_client: A Boto3 Amazon Relational Database Service (Amazon RDS) client. """ self.rds_client = rds_client @classmethod def from_client(cls): """ Instantiates this class from a Boto3 client. """ rds_client = boto3.client("rds") return cls(rds_client) def get_engine_versions(self, engine, parameter_group_family=None): """ Gets database engine versions that are available for the specified engine and parameter group family. :param engine: The database engine to look up. :param parameter_group_family: When specified, restricts the returned list of engine versions to those that are compatible with this parameter group family. :return: The list of database engine versions. """ try: kwargs = {"Engine": engine} if parameter_group_family is not None: kwargs["DBParameterGroupFamily"] = parameter_group_family response = self.rds_client.describe_db_engine_versions(**kwargs) versions = response["DBEngineVersions"] except ClientError as err: logger.error( "Couldn't get engine versions for %s. Here's why: %s: %s", engine, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return versions ``` + API の詳細については、*AWS SDK for Python (Boto3) API リファレンス*の「[DescribeDBEngineVersions](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/DescribeDBEngineVersions)」を参照してください。 ------ #### [ Rust ] **SDK for Rust** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/rustv1/examples/aurora#code-examples)での設定と実行の方法を確認してください。 ``` // Get available engine families for Aurora MySql. rds.DescribeDbEngineVersions(Engine='aurora-mysql') and build a set of the 'DBParameterGroupFamily' field values. I get {aurora-mysql8.0, aurora-mysql5.7}. pub async fn get_engines(&self) -> Result>, ScenarioError> { let describe_db_engine_versions = self.rds.describe_db_engine_versions(DB_ENGINE).await; trace!(versions=?describe_db_engine_versions, "full list of versions"); if let Err(err) = describe_db_engine_versions { return Err(ScenarioError::new( "Failed to retrieve DB Engine Versions", &err, )); }; let version_count = describe_db_engine_versions .as_ref() .map(|o| o.db_engine_versions().len()) .unwrap_or_default(); info!(version_count, "got list of versions"); // Create a map of engine families to their available versions. let mut versions = HashMap::>::new(); describe_db_engine_versions .unwrap() .db_engine_versions() .iter() .filter_map( |v| match (&v.db_parameter_group_family, &v.engine_version) { (Some(family), Some(version)) => Some((family.clone(), version.clone())), _ => None, }, ) .for_each(|(family, version)| versions.entry(family).or_default().push(version)); Ok(versions) } pub async fn describe_db_engine_versions( &self, engine: &str, ) -> Result> { self.inner .describe_db_engine_versions() .engine(engine) .send() .await } #[tokio::test] async fn test_scenario_get_engines() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_describe_db_engine_versions() .with(eq("aurora-mysql")) .return_once(|_| { Ok(DescribeDbEngineVersionsOutput::builder() .db_engine_versions( DbEngineVersion::builder() .db_parameter_group_family("f1") .engine_version("f1a") .build(), ) .db_engine_versions( DbEngineVersion::builder() .db_parameter_group_family("f1") .engine_version("f1b") .build(), ) .db_engine_versions( DbEngineVersion::builder() .db_parameter_group_family("f2") .engine_version("f2a") .build(), ) .db_engine_versions(DbEngineVersion::builder().build()) .build()) }); let scenario = AuroraScenario::new(mock_rds); let versions_map = scenario.get_engines().await; assert_eq!( versions_map, Ok(HashMap::from([ ("f1".into(), vec!["f1a".into(), "f1b".into()]), ("f2".into(), vec!["f2a".into()]) ])) ); } #[tokio::test] async fn test_scenario_get_engines_failed() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_describe_db_engine_versions() .with(eq("aurora-mysql")) .return_once(|_| { Err(SdkError::service_error( DescribeDBEngineVersionsError::unhandled(Box::new(Error::new( ErrorKind::Other, "describe_db_engine_versions error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); let scenario = AuroraScenario::new(mock_rds); let versions_map = scenario.get_engines().await; assert_matches!( versions_map, Err(ScenarioError { message, context: _ }) if message == "Failed to retrieve DB Engine Versions" ); } ``` + API の詳細については、*AWS SDK for Rust API リファレンス*の「[DescribeDBEngineVersions](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.describe_db_engine_versions)」を参照してください。 ------ #### [ SAP ABAP ] **SDK for SAP ABAP** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/rds#code-examples)での設定と実行の方法を確認してください。 ``` " iv_engine = 'mysql' " iv_dbparametergroupfamily = 'mysql8.0' (optional - filters by parameter group family) TRY. oo_result = lo_rds->describedbengineversions( iv_engine = iv_engine iv_dbparametergroupfamily = iv_dbparametergroupfamily ). DATA(lv_version_count) = lines( oo_result->get_dbengineversions( ) ). MESSAGE |Retrieved { lv_version_count } engine versions.| TYPE 'I'. ENDTRY. ``` + API の詳細については、「*AWS SDK for SAP ABAP API リファレンス*」の「[DescribeDBEngineVersions](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html)」を参照してください。 ------ # AWS SDK `DescribeDBInstances`でを使用する次のサンプルコードは、`DescribeDBInstances` を使用する方法を説明しています。アクション例は、より大きなプログラムからのコードの抜粋であり、コンテキスト内で実行する必要があります。次のコード例で、このアクションのコンテキストを確認できます。 + [基本を学ぶ](aurora_example_aurora_Scenario_GetStartedClusters_section.md) ------ #### [ .NET ] **SDK for .NET (v4)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/Aurora#code-examples)での設定と実行の方法を確認してください。 ``` ///

/// Returns a list of DB instances. ///

/// Optional name of a specific DB instance. /// List of DB instances. public async Task> DescribeDBInstancesPagedAsync(string? dbInstanceIdentifier = null) { var results = new List(); var instancesPaginator = _amazonRDS.Paginators.DescribeDBInstances( new DescribeDBInstancesRequest { DBInstanceIdentifier = dbInstanceIdentifier }); // Get the entire list using the paginator. await foreach (var instances in instancesPaginator.DBInstances) { results.Add(instances); } return results; } ``` + API の詳細については、*AWS SDK for .NET API リファレンス*の「[DescribeDBInstances](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/DescribeDBInstances)」を参照してください。 ------ #### [ C\$1\$1 ] **SDK for C\$1\$1** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region (overrides config file). // clientConfig.region = "us-east-1"; Aws::RDS::RDSClient client(clientConfig); //! Routine which gets a DB instance description. /*! \sa describeDBCluster() \param dbInstanceIdentifier: A DB instance identifier. \param instanceResult: The 'DBInstance' object containing the description. \param client: 'RDSClient' instance. \return bool: Successful completion. */ bool AwsDoc::Aurora::describeDBInstance(const Aws::String &dbInstanceIdentifier, Aws::RDS::Model::DBInstance &instanceResult, const Aws::RDS::RDSClient &client) { Aws::RDS::Model::DescribeDBInstancesRequest request; request.SetDBInstanceIdentifier(dbInstanceIdentifier); Aws::RDS::Model::DescribeDBInstancesOutcome outcome = client.DescribeDBInstances(request); bool result = true; if (outcome.IsSuccess()) { instanceResult = outcome.GetResult().GetDBInstances()[0]; } else if (outcome.GetError().GetErrorType() != Aws::RDS::RDSErrors::D_B_INSTANCE_NOT_FOUND_FAULT) { result = false; std::cerr << "Error with Aurora::DescribeDBInstances. " << outcome.GetError().GetMessage() << std::endl; } // This example does not log an error if the DB instance does not exist. // Instead, instanceResult is set to empty. else { instanceResult = Aws::RDS::Model::DBInstance(); } return result; } ``` + API の詳細については、*AWS SDK for C\$1\$1 API リファレンス*の「[DescribeDBInstances](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/DescribeDBInstances)」を参照してください。 ------ #### [ Go ] **SDK for Go V2** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/gov2/aurora#code-examples)での設定と実行の方法を確認してください。 ``` import ( "context" "errors" "log" "github.com/aws/aws-sdk-go-v2/aws" "github.com/aws/aws-sdk-go-v2/service/rds" "github.com/aws/aws-sdk-go-v2/service/rds/types" ) type DbClusters struct { AuroraClient *rds.Client } // GetInstance gets data about a DB instance. func (clusters *DbClusters) GetInstance(ctx context.Context, instanceName string) ( *types.DBInstance, error) { output, err := clusters.AuroraClient.DescribeDBInstances(ctx, &rds.DescribeDBInstancesInput{ DBInstanceIdentifier: aws.String(instanceName), }) if err != nil { var notFoundError *types.DBInstanceNotFoundFault if errors.As(err, ¬FoundError) { log.Printf("DB instance %v does not exist.\n", instanceName) err = nil } else { log.Printf("Couldn't get instance %v: %v\n", instanceName, err) } return nil, err } else { return &output.DBInstances[0], nil } } ``` + API の詳細については、*AWS SDK for Go API リファレンス*の「[DescribeDBInstances](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.DescribeDBInstances)」を参照してください。 ------ #### [ Java ] **SDK for Java 2.x** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/rds#code-examples)での設定と実行の方法を確認してください。 ``` // Waits until the database instance is available. public static void waitForInstanceReady(RdsClient rdsClient, String dbClusterIdentifier) { boolean instanceReady = false; String instanceReadyStr; System.out.println("Waiting for instance to become available."); try { DescribeDbClustersRequest instanceRequest = DescribeDbClustersRequest.builder() .dbClusterIdentifier(dbClusterIdentifier) .build(); while (!instanceReady) { DescribeDbClustersResponse response = rdsClient.describeDBClusters(instanceRequest); List clusterList = response.dbClusters(); for (DBCluster cluster : clusterList) { instanceReadyStr = cluster.status(); if (instanceReadyStr.contains("available")) { instanceReady = true; } else { System.out.print("."); Thread.sleep(sleepTime * 1000); } } } System.out.println("Database cluster is available!"); } catch (RdsException | InterruptedException e) { System.err.println(e.getMessage()); System.exit(1); } } ``` + API の詳細については、*AWS SDK for Java 2.x API リファレンス*の「[DescribeDBInstances](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/DescribeDBInstances)」を参照してください。 ------ #### [ Kotlin ] **SDK for Kotlin** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/rds#code-examples)での設定と実行の方法を確認してください。 ``` suspend fun waitDBAuroraInstanceReady(dbInstanceIdentifierVal: String?) { var instanceReady = false var instanceReadyStr: String println("Waiting for instance to become available.") val instanceRequest = DescribeDbInstancesRequest { dbInstanceIdentifier = dbInstanceIdentifierVal } var endpoint = "" RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> while (!instanceReady) { val response = rdsClient.describeDbInstances(instanceRequest) response.dbInstances?.forEach { instance -> instanceReadyStr = instance.dbInstanceStatus.toString() if (instanceReadyStr.contains("available")) { endpoint = instance.endpoint?.address.toString() instanceReady = true } else { print(".") delay(sleepTime * 1000) } } } } println("Database instance is available! The connection endpoint is $endpoint") } ``` + API の詳細については、*AWS SDK for Kotlin API リファレンス*の「[DescribeDBInstances](https://sdk.amazonaws.com/kotlin/api/latest/index.html)」を参照してください。 ------ #### [ Python ] **SDK for Python (Boto3)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` class AuroraWrapper: """Encapsulates Aurora DB cluster actions.""" def __init__(self, rds_client): """ :param rds_client: A Boto3 Amazon Relational Database Service (Amazon RDS) client. """ self.rds_client = rds_client @classmethod def from_client(cls): """ Instantiates this class from a Boto3 client. """ rds_client = boto3.client("rds") return cls(rds_client) def get_db_instance(self, instance_id): """ Gets data about a DB instance. :param instance_id: The ID of the DB instance to retrieve. :return: The retrieved DB instance. """ try: response = self.rds_client.describe_db_instances( DBInstanceIdentifier=instance_id ) db_inst = response["DBInstances"][0] except ClientError as err: if err.response["Error"]["Code"] == "DBInstanceNotFound": logger.info("Instance %s does not exist.", instance_id) else: logger.error( "Couldn't get DB instance %s. Here's why: %s: %s", instance_id, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return db_inst ``` + API の詳細については、*AWS SDK for Python (Boto3) API リファレンス*の「[DescribeDBInstances](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/DescribeDBInstances)」を参照してください。 ------ #### [ Rust ] **SDK for Rust** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/rustv1/examples/aurora#code-examples)での設定と実行の方法を確認してください。 ``` pub async fn clean_up(self) -> Result<(), Vec> { let mut clean_up_errors: Vec = vec![]; // Delete the instance. rds.DeleteDbInstance. let delete_db_instance = self .rds .delete_db_instance( self.db_instance_identifier .as_deref() .expect("instance identifier"), ) .await; if let Err(err) = delete_db_instance { let identifier = self .db_instance_identifier .as_deref() .unwrap_or("Missing Instance Identifier"); let message = format!("failed to delete db instance {identifier}"); clean_up_errors.push(ScenarioError::new(message, &err)); } else { // Wait for the instance to delete let waiter = Waiter::default(); while waiter.sleep().await.is_ok() { let describe_db_instances = self.rds.describe_db_instances().await; if let Err(err) = describe_db_instances { clean_up_errors.push(ScenarioError::new( "Failed to check instance state during deletion", &err, )); break; } let db_instances = describe_db_instances .unwrap() .db_instances() .iter() .filter(|instance| instance.db_cluster_identifier == self.db_cluster_identifier) .cloned() .collect::>(); if db_instances.is_empty() { trace!("Delete Instance waited and no instances were found"); break; } match db_instances.first().unwrap().db_instance_status() { Some("Deleting") => continue, Some(status) => { info!("Attempting to delete but instances is in {status}"); continue; } None => { warn!("No status for DB instance"); break; } } } } // Delete the DB cluster. rds.DeleteDbCluster. let delete_db_cluster = self .rds .delete_db_cluster( self.db_cluster_identifier .as_deref() .expect("cluster identifier"), ) .await; if let Err(err) = delete_db_cluster { let identifier = self .db_cluster_identifier .as_deref() .unwrap_or("Missing DB Cluster Identifier"); let message = format!("failed to delete db cluster {identifier}"); clean_up_errors.push(ScenarioError::new(message, &err)); } else { // Wait for the instance and cluster to fully delete. rds.DescribeDbInstances and rds.DescribeDbClusters until both are not found. let waiter = Waiter::default(); while waiter.sleep().await.is_ok() { let describe_db_clusters = self .rds .describe_db_clusters( self.db_cluster_identifier .as_deref() .expect("cluster identifier"), ) .await; if let Err(err) = describe_db_clusters { clean_up_errors.push(ScenarioError::new( "Failed to check cluster state during deletion", &err, )); break; } let describe_db_clusters = describe_db_clusters.unwrap(); let db_clusters = describe_db_clusters.db_clusters(); if db_clusters.is_empty() { trace!("Delete cluster waited and no clusters were found"); break; } match db_clusters.first().unwrap().status() { Some("Deleting") => continue, Some(status) => { info!("Attempting to delete but clusters is in {status}"); continue; } None => { warn!("No status for DB cluster"); break; } } } } // Delete the DB cluster parameter group. rds.DeleteDbClusterParameterGroup. let delete_db_cluster_parameter_group = self .rds .delete_db_cluster_parameter_group( self.db_cluster_parameter_group .map(|g| { g.db_cluster_parameter_group_name .unwrap_or_else(|| DB_CLUSTER_PARAMETER_GROUP_NAME.to_string()) }) .as_deref() .expect("cluster parameter group name"), ) .await; if let Err(error) = delete_db_cluster_parameter_group { clean_up_errors.push(ScenarioError::new( "Failed to delete the db cluster parameter group", &error, )) } if clean_up_errors.is_empty() { Ok(()) } else { Err(clean_up_errors) } } pub async fn describe_db_instances( &self, ) -> Result> { self.inner.describe_db_instances().send().await } #[tokio::test] async fn test_scenario_clean_up() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_delete_db_instance() .with(eq("MockInstance")) .return_once(|_| Ok(DeleteDbInstanceOutput::builder().build())); mock_rds .expect_describe_db_instances() .with() .times(1) .returning(|| { Ok(DescribeDbInstancesOutput::builder() .db_instances( DbInstance::builder() .db_cluster_identifier("MockCluster") .db_instance_status("Deleting") .build(), ) .build()) }) .with() .times(1) .returning(|| Ok(DescribeDbInstancesOutput::builder().build())); mock_rds .expect_delete_db_cluster() .with(eq("MockCluster")) .return_once(|_| Ok(DeleteDbClusterOutput::builder().build())); mock_rds .expect_describe_db_clusters() .with(eq("MockCluster")) .times(1) .returning(|id| { Ok(DescribeDbClustersOutput::builder() .db_clusters( DbCluster::builder() .db_cluster_identifier(id) .status("Deleting") .build(), ) .build()) }) .with(eq("MockCluster")) .times(1) .returning(|_| Ok(DescribeDbClustersOutput::builder().build())); mock_rds .expect_delete_db_cluster_parameter_group() .with(eq("MockParamGroup")) .return_once(|_| Ok(DeleteDbClusterParameterGroupOutput::builder().build())); let mut scenario = AuroraScenario::new(mock_rds); scenario.db_cluster_identifier = Some(String::from("MockCluster")); scenario.db_instance_identifier = Some(String::from("MockInstance")); scenario.db_cluster_parameter_group = Some( DbClusterParameterGroup::builder() .db_cluster_parameter_group_name("MockParamGroup") .build(), ); tokio::time::pause(); let assertions = tokio::spawn(async move { let clean_up = scenario.clean_up().await; assert!(clean_up.is_ok()); }); tokio::time::advance(Duration::from_secs(1)).await; // Wait for first Describe Instances tokio::time::advance(Duration::from_secs(1)).await; // Wait for second Describe Instances tokio::time::advance(Duration::from_secs(1)).await; // Wait for first Describe Cluster tokio::time::advance(Duration::from_secs(1)).await; // Wait for second Describe Cluster tokio::time::resume(); let _ = assertions.await; } #[tokio::test] async fn test_scenario_clean_up_errors() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_delete_db_instance() .with(eq("MockInstance")) .return_once(|_| Ok(DeleteDbInstanceOutput::builder().build())); mock_rds .expect_describe_db_instances() .with() .times(1) .returning(|| { Ok(DescribeDbInstancesOutput::builder() .db_instances( DbInstance::builder() .db_cluster_identifier("MockCluster") .db_instance_status("Deleting") .build(), ) .build()) }) .with() .times(1) .returning(|| { Err(SdkError::service_error( DescribeDBInstancesError::unhandled(Box::new(Error::new( ErrorKind::Other, "describe db instances error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); mock_rds .expect_delete_db_cluster() .with(eq("MockCluster")) .return_once(|_| Ok(DeleteDbClusterOutput::builder().build())); mock_rds .expect_describe_db_clusters() .with(eq("MockCluster")) .times(1) .returning(|id| { Ok(DescribeDbClustersOutput::builder() .db_clusters( DbCluster::builder() .db_cluster_identifier(id) .status("Deleting") .build(), ) .build()) }) .with(eq("MockCluster")) .times(1) .returning(|_| { Err(SdkError::service_error( DescribeDBClustersError::unhandled(Box::new(Error::new( ErrorKind::Other, "describe db clusters error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); mock_rds .expect_delete_db_cluster_parameter_group() .with(eq("MockParamGroup")) .return_once(|_| Ok(DeleteDbClusterParameterGroupOutput::builder().build())); let mut scenario = AuroraScenario::new(mock_rds); scenario.db_cluster_identifier = Some(String::from("MockCluster")); scenario.db_instance_identifier = Some(String::from("MockInstance")); scenario.db_cluster_parameter_group = Some( DbClusterParameterGroup::builder() .db_cluster_parameter_group_name("MockParamGroup") .build(), ); tokio::time::pause(); let assertions = tokio::spawn(async move { let clean_up = scenario.clean_up().await; assert!(clean_up.is_err()); let errs = clean_up.unwrap_err(); assert_eq!(errs.len(), 2); assert_matches!(errs.first(), Some(ScenarioError {message, context: _}) if message == "Failed to check instance state during deletion"); assert_matches!(errs.get(1), Some(ScenarioError {message, context: _}) if message == "Failed to check cluster state during deletion"); }); tokio::time::advance(Duration::from_secs(1)).await; // Wait for first Describe Instances tokio::time::advance(Duration::from_secs(1)).await; // Wait for second Describe Instances tokio::time::advance(Duration::from_secs(1)).await; // Wait for first Describe Cluster tokio::time::advance(Duration::from_secs(1)).await; // Wait for second Describe Cluster tokio::time::resume(); let _ = assertions.await; } ``` + API の詳細については、*AWS SDK for Rust API リファレンス*の「[DescribeDBInstances](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.describe_db_instances)」を参照してください。 ------ # AWS SDK または CLI `DescribeOrderableDBInstanceOptions`でを使用する次のサンプルコードは、`DescribeOrderableDBInstanceOptions` を使用する方法を説明しています。アクション例は、より大きなプログラムからのコードの抜粋であり、コンテキスト内で実行する必要があります。次のコード例で、このアクションのコンテキストを確認できます。 + [基本を学ぶ](aurora_example_aurora_Scenario_GetStartedClusters_section.md) ------ #### [ .NET ] **SDK for .NET (v4)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/Aurora#code-examples)での設定と実行の方法を確認してください。 ``` ///

/// Get a list of orderable DB instance options for a specific /// engine and engine version. ///

/// Name of the engine. /// Version of the engine. /// List of OrderableDBInstanceOptions. public async Task> DescribeOrderableDBInstanceOptionsPagedAsync(string engine, string engineVersion) { // Use a paginator to get a list of DB instance options. var results = new List(); var paginateInstanceOptions = _amazonRDS.Paginators.DescribeOrderableDBInstanceOptions( new DescribeOrderableDBInstanceOptionsRequest() { Engine = engine, EngineVersion = engineVersion, }); // Get the entire list using the paginator. await foreach (var instanceOptions in paginateInstanceOptions.OrderableDBInstanceOptions) { results.Add(instanceOptions); } return results; } ``` + API の詳細については、*AWS SDK for .NET API リファレンス*の「[DescribeOrderableDBInstanceOptions](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/DescribeOrderableDBInstanceOptions)」を参照してください。 ------ #### [ C\$1\$1 ] **SDK for C\$1\$1** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region (overrides config file). // clientConfig.region = "us-east-1"; Aws::RDS::RDSClient client(clientConfig); //! Routine which gets available DB instance classes, displays the list //! to the user, and returns the user selection. /*! \sa chooseDBInstanceClass() \param engineName: The DB engine name. \param engineVersion: The DB engine version. \param dbInstanceClass: String for DB instance class chosen by the user. \param client: 'RDSClient' instance. \return bool: Successful completion. */ bool AwsDoc::Aurora::chooseDBInstanceClass(const Aws::String &engine, const Aws::String &engineVersion, Aws::String &dbInstanceClass, const Aws::RDS::RDSClient &client) { std::vector instanceClasses; Aws::String marker; // The marker is used for pagination. do { Aws::RDS::Model::DescribeOrderableDBInstanceOptionsRequest request; request.SetEngine(engine); request.SetEngineVersion(engineVersion); if (!marker.empty()) { request.SetMarker(marker); } Aws::RDS::Model::DescribeOrderableDBInstanceOptionsOutcome outcome = client.DescribeOrderableDBInstanceOptions(request); if (outcome.IsSuccess()) { const Aws::Vector &options = outcome.GetResult().GetOrderableDBInstanceOptions(); for (const Aws::RDS::Model::OrderableDBInstanceOption &option: options) { const Aws::String &instanceClass = option.GetDBInstanceClass(); if (std::find(instanceClasses.begin(), instanceClasses.end(), instanceClass) == instanceClasses.end()) { instanceClasses.push_back(instanceClass); } } marker = outcome.GetResult().GetMarker(); } else { std::cerr << "Error with Aurora::DescribeOrderableDBInstanceOptions. " << outcome.GetError().GetMessage() << std::endl; return false; } } while (!marker.empty()); std::cout << "The available DB instance classes for your database engine are:" << std::endl; for (int i = 0; i < instanceClasses.size(); ++i) { std::cout << " " << i + 1 << ": " << instanceClasses[i] << std::endl; } int choice = askQuestionForIntRange( "Which DB instance class do you want to use? ", 1, static_cast(instanceClasses.size())); dbInstanceClass = instanceClasses[choice - 1]; return true; } ``` + API の詳細については、*AWS SDK for C\$1\$1 API リファレンス*の「[DescribeOrderableDBInstanceOptions](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/DescribeOrderableDBInstanceOptions)」を参照してください。 ------ #### [ Go ] **SDK for Go V2** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/gov2/aurora#code-examples)での設定と実行の方法を確認してください。 ``` import ( "context" "errors" "log" "github.com/aws/aws-sdk-go-v2/aws" "github.com/aws/aws-sdk-go-v2/service/rds" "github.com/aws/aws-sdk-go-v2/service/rds/types" ) type DbClusters struct { AuroraClient *rds.Client } // GetOrderableInstances uses a paginator to get DB instance options that can be used to create DB instances that are // compatible with a set of specifications. func (clusters *DbClusters) GetOrderableInstances(ctx context.Context, engine string, engineVersion string) ( []types.OrderableDBInstanceOption, error) { var output *rds.DescribeOrderableDBInstanceOptionsOutput var instances []types.OrderableDBInstanceOption var err error orderablePaginator := rds.NewDescribeOrderableDBInstanceOptionsPaginator(clusters.AuroraClient, &rds.DescribeOrderableDBInstanceOptionsInput{ Engine: aws.String(engine), EngineVersion: aws.String(engineVersion), }) for orderablePaginator.HasMorePages() { output, err = orderablePaginator.NextPage(ctx) if err != nil { log.Printf("Couldn't get orderable DB instances: %v\n", err) break } else { instances = append(instances, output.OrderableDBInstanceOptions...) } } return instances, err } ``` + API の詳細については、*AWS SDK for Go API リファレンス*の「[DescribeOrderableDBInstanceOptions](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.DescribeOrderableDBInstanceOptions)」を参照してください。 ------ #### [ Java ] **SDK for Java 2.x** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/rds#code-examples)での設定と実行の方法を確認してください。 ``` public static void describeDBEngines(RdsClient rdsClient) { try { DescribeDbEngineVersionsRequest engineVersionsRequest = DescribeDbEngineVersionsRequest.builder() .engine("aurora-mysql") .defaultOnly(true) .maxRecords(20) .build(); DescribeDbEngineVersionsResponse response = rdsClient.describeDBEngineVersions(engineVersionsRequest); List engines = response.dbEngineVersions(); // Get all DBEngineVersion objects. for (DBEngineVersion engineOb : engines) { System.out.println("The name of the DB parameter group family for the database engine is " + engineOb.dbParameterGroupFamily()); System.out.println("The name of the database engine " + engineOb.engine()); System.out.println("The version number of the database engine " + engineOb.engineVersion()); } } catch (RdsException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } } ``` + API の詳細については、*AWS SDK for Java 2.x API リファレンス*の「[DescribeOrderableDBInstanceOptions](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/DescribeOrderableDBInstanceOptions)」を参照してください。 ------ #### [ PowerShell ] **Tools for PowerShell V4** **例 1: この例は、 AWS リージョン内で特定の DB インスタンスクラスをサポートする DB エンジンのバージョンを一覧表示します。** ``` $params = @{ Engine = 'aurora-postgresql' DBInstanceClass = 'db.r5.large' Region = 'us-east-1' } Get-RDSOrderableDBInstanceOption @params ``` **例 2: この例は、 AWS リージョン内で特定の DB エンジンのバージョンをサポートする DB インスタンスクラスを一覧表示します。** ``` $params = @{ Engine = 'aurora-postgresql' EngineVersion = '13.6' Region = 'us-east-1' } Get-RDSOrderableDBInstanceOption @params ``` + API の詳細については、「*AWS Tools for PowerShell Cmdlet Reference (V4)*」の「[DescribeOrderableDBInstanceOptions](https://docs.aws.amazon.com/powershell/v4/reference)」を参照してください。 **Tools for PowerShell V5** **例 1: この例は、 AWS リージョン内で特定の DB インスタンスクラスをサポートする DB エンジンのバージョンを一覧表示します。** ``` $params = @{ Engine = 'aurora-postgresql' DBInstanceClass = 'db.r5.large' Region = 'us-east-1' } Get-RDSOrderableDBInstanceOption @params ``` **例 2: この例は、 AWS リージョン内で特定の DB エンジンのバージョンをサポートする DB インスタンスクラスを一覧表示します。** ``` $params = @{ Engine = 'aurora-postgresql' EngineVersion = '13.6' Region = 'us-east-1' } Get-RDSOrderableDBInstanceOption @params ``` + API の詳細については、「*AWS Tools for PowerShell Cmdlet Reference (V5)*」の「[DescribeOrderableDBInstanceOptions](https://docs.aws.amazon.com/powershell/v5/reference)」を参照してください。 ------ #### [ Python ] **SDK for Python (Boto3)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` class AuroraWrapper: """Encapsulates Aurora DB cluster actions.""" def __init__(self, rds_client): """ :param rds_client: A Boto3 Amazon Relational Database Service (Amazon RDS) client. """ self.rds_client = rds_client @classmethod def from_client(cls): """ Instantiates this class from a Boto3 client. """ rds_client = boto3.client("rds") return cls(rds_client) def get_orderable_instances(self, db_engine, db_engine_version): """ Gets DB instance options that can be used to create DB instances that are compatible with a set of specifications. :param db_engine: The database engine that must be supported by the DB instance. :param db_engine_version: The engine version that must be supported by the DB instance. :return: The list of DB instance options that can be used to create a compatible DB instance. """ try: inst_opts = [] paginator = self.rds_client.get_paginator( "describe_orderable_db_instance_options" ) for page in paginator.paginate( Engine=db_engine, EngineVersion=db_engine_version ): inst_opts += page["OrderableDBInstanceOptions"] except ClientError as err: logger.error( "Couldn't get orderable DB instances. Here's why: %s: %s", err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return inst_opts ``` + API の詳細については、*AWS SDK for Python (Boto3) API リファレンス*の「[DescribeOrderableDBInstanceOptions](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/DescribeOrderableDBInstanceOptions)」を参照してください。 ------ #### [ Rust ] **SDK for Rust** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/rustv1/examples/aurora#code-examples)での設定と実行の方法を確認してください。 ``` pub async fn get_instance_classes(&self) -> Result, ScenarioError> { let describe_orderable_db_instance_options_items = self .rds .describe_orderable_db_instance_options( DB_ENGINE, self.engine_version .as_ref() .expect("engine version for db instance options") .as_str(), ) .await; describe_orderable_db_instance_options_items .map(|options| { options .iter() .filter(|o| o.storage_type() == Some("aurora")) .map(|o| o.db_instance_class().unwrap_or_default().to_string()) .collect::>() }) .map_err(|err| ScenarioError::new("Could not get available instance classes", &err)) } pub async fn describe_orderable_db_instance_options( &self, engine: &str, engine_version: &str, ) -> Result, SdkError> { self.inner .describe_orderable_db_instance_options() .engine(engine) .engine_version(engine_version) .into_paginator() .items() .send() .try_collect() .await } #[tokio::test] async fn test_scenario_get_instance_classes() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_create_db_cluster_parameter_group() .return_once(|_, _, _| { Ok(CreateDbClusterParameterGroupOutput::builder() .db_cluster_parameter_group(DbClusterParameterGroup::builder().build()) .build()) }); mock_rds .expect_describe_orderable_db_instance_options() .with(eq("aurora-mysql"), eq("aurora-mysql8.0")) .return_once(|_, _| { Ok(vec![ OrderableDbInstanceOption::builder() .db_instance_class("t1") .storage_type("aurora") .build(), OrderableDbInstanceOption::builder() .db_instance_class("t1") .storage_type("aurora-iopt1") .build(), OrderableDbInstanceOption::builder() .db_instance_class("t2") .storage_type("aurora") .build(), OrderableDbInstanceOption::builder() .db_instance_class("t3") .storage_type("aurora") .build(), ]) }); let mut scenario = AuroraScenario::new(mock_rds); scenario .set_engine("aurora-mysql", "aurora-mysql8.0") .await .expect("set engine"); let instance_classes = scenario.get_instance_classes().await; assert_eq!( instance_classes, Ok(vec!["t1".into(), "t2".into(), "t3".into()]) ); } #[tokio::test] async fn test_scenario_get_instance_classes_error() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_describe_orderable_db_instance_options() .with(eq("aurora-mysql"), eq("aurora-mysql8.0")) .return_once(|_, _| { Err(SdkError::service_error( DescribeOrderableDBInstanceOptionsError::unhandled(Box::new(Error::new( ErrorKind::Other, "describe_orderable_db_instance_options_error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); let mut scenario = AuroraScenario::new(mock_rds); scenario.engine_family = Some("aurora-mysql".into()); scenario.engine_version = Some("aurora-mysql8.0".into()); let instance_classes = scenario.get_instance_classes().await; assert_matches!( instance_classes, Err(ScenarioError {message, context: _}) if message == "Could not get available instance classes" ); } ``` + API の詳細については、*AWS SDK for Rust API リファレンス*の「[DescribeOrderableDBInstanceOptions](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.describe_orderable_db_instance_options)」を参照してください。 ------ #### [ SAP ABAP ] **SDK for SAP ABAP** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/rds#code-examples)での設定と実行の方法を確認してください。 ``` " iv_engine = 'mysql' " iv_engineversion = '8.0.35' TRY. oo_result = lo_rds->descrorderabledbinstoptions( iv_engine = iv_engine iv_engineversion = iv_engineversion ). DATA(lv_option_count) = lines( oo_result->get_orderabledbinstoptions( ) ). MESSAGE |Retrieved { lv_option_count } orderable DB instance options.| TYPE 'I'. ENDTRY. ``` + API の詳細については、「*AWS SDK for SAP ABAP API リファレンス*」の「[DescribeOrderableDBInstanceOptions](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html)」を参照してください。 ------ # AWS SDK `ModifyDBClusterParameterGroup`でを使用する次のサンプルコードは、`ModifyDBClusterParameterGroup` を使用する方法を説明しています。アクション例は、より大きなプログラムからのコードの抜粋であり、コンテキスト内で実行する必要があります。次のコード例で、このアクションのコンテキストを確認できます。 + [基本を学ぶ](aurora_example_aurora_Scenario_GetStartedClusters_section.md) ------ #### [ .NET ] **SDK for .NET (v4)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv4/Aurora#code-examples)での設定と実行の方法を確認してください。 ``` ///

/// Modify the specified integer parameters with new values from user input. ///

/// The group name for the parameters. /// The list of integer parameters to modify. /// Optional int value to set for parameters. /// The name of the group that was modified. public async Task ModifyIntegerParametersInGroupAsync(string groupName, List parameters, int newValue = 0) { foreach (var p in parameters) { if (p.IsModifiable.GetValueOrDefault() && p.DataType == "integer") { while (newValue == 0) { Console.WriteLine( $"Enter a new value for {p.ParameterName} from the allowed values {p.AllowedValues} "); var choice = Console.ReadLine(); int.TryParse(choice, out newValue); } p.ParameterValue = newValue.ToString(); } } var request = new ModifyDBClusterParameterGroupRequest { Parameters = parameters, DBClusterParameterGroupName = groupName, }; var result = await _amazonRDS.ModifyDBClusterParameterGroupAsync(request); return result.DBClusterParameterGroupName; } ``` + API の詳細については、*AWS SDK for .NET API リファレンス*の「[ModifyDBClusterParameterGroup](https://docs.aws.amazon.com/goto/DotNetSDKV4/rds-2014-10-31/ModifyDBClusterParameterGroup)」を参照してください。 ------ #### [ C\$1\$1 ] **SDK for C\$1\$1** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region (overrides config file). // clientConfig.region = "us-east-1"; Aws::RDS::RDSClient client(clientConfig); Aws::RDS::Model::ModifyDBClusterParameterGroupRequest request; request.SetDBClusterParameterGroupName(CLUSTER_PARAMETER_GROUP_NAME); request.SetParameters(updateParameters); Aws::RDS::Model::ModifyDBClusterParameterGroupOutcome outcome = client.ModifyDBClusterParameterGroup(request); if (outcome.IsSuccess()) { std::cout << "The DB cluster parameter group was successfully modified." << std::endl; } else { std::cerr << "Error with Aurora::ModifyDBClusterParameterGroup. " << outcome.GetError().GetMessage() << std::endl; } ``` + API の詳細については、**「AWS SDK for C\$1\$1 API リファレンス」の「[ModifyDBClusterParameterGroup](https://docs.aws.amazon.com/goto/SdkForCpp/rds-2014-10-31/ModifyDBClusterParameterGroup)」を参照してください。 ------ #### [ Go ] **SDK for Go V2** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/gov2/aurora#code-examples)での設定と実行の方法を確認してください。 ``` import ( "context" "errors" "log" "github.com/aws/aws-sdk-go-v2/aws" "github.com/aws/aws-sdk-go-v2/service/rds" "github.com/aws/aws-sdk-go-v2/service/rds/types" ) type DbClusters struct { AuroraClient *rds.Client } // UpdateParameters updates parameters in a named DB cluster parameter group. func (clusters *DbClusters) UpdateParameters(ctx context.Context, parameterGroupName string, params []types.Parameter) error { _, err := clusters.AuroraClient.ModifyDBClusterParameterGroup(ctx, &rds.ModifyDBClusterParameterGroupInput{ DBClusterParameterGroupName: aws.String(parameterGroupName), Parameters: params, }) if err != nil { log.Printf("Couldn't update parameters in %v: %v\n", parameterGroupName, err) return err } else { return nil } } ``` + API の詳細については、*AWS SDK for Go API リファレンス*の「[ModifyDBClusterParameterGroup](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/rds#Client.ModifyDBClusterParameterGroup)」を参照してください。 ------ #### [ Java ] **SDK for Java 2.x** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/rds#code-examples)での設定と実行の方法を確認してください。 ``` public static void describeDbClusterParameterGroups(RdsClient rdsClient, String dbClusterGroupName) { try { DescribeDbClusterParameterGroupsRequest groupsRequest = DescribeDbClusterParameterGroupsRequest.builder() .dbClusterParameterGroupName(dbClusterGroupName) .maxRecords(20) .build(); List groups = rdsClient.describeDBClusterParameterGroups(groupsRequest) .dbClusterParameterGroups(); for (DBClusterParameterGroup group : groups) { System.out.println("The group name is " + group.dbClusterParameterGroupName()); System.out.println("The group ARN is " + group.dbClusterParameterGroupArn()); } } catch (RdsException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } } ``` + API の詳細については、*AWS SDK for Java 2.x API リファレンス*の「[ModifyDBClusterParameterGroup](https://docs.aws.amazon.com/goto/SdkForJavaV2/rds-2014-10-31/ModifyDBClusterParameterGroup)」を参照してください。 ------ #### [ Kotlin ] **SDK for Kotlin** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/rds#code-examples)での設定と実行の方法を確認してください。 ``` // Modify the auto_increment_offset parameter. suspend fun modifyDBClusterParas(dClusterGroupName: String?) { val parameter1 = Parameter { parameterName = "auto_increment_offset" applyMethod = ApplyMethod.fromValue("immediate") parameterValue = "5" } val paraList = ArrayList() paraList.add(parameter1) val groupRequest = ModifyDbClusterParameterGroupRequest { dbClusterParameterGroupName = dClusterGroupName parameters = paraList } RdsClient.fromEnvironment { region = "us-west-2" }.use { rdsClient -> val response = rdsClient.modifyDbClusterParameterGroup(groupRequest) println("The parameter group ${response.dbClusterParameterGroupName} was successfully modified") } } ``` + API の詳細については、*AWS SDK for Kotlin API リファレンス*の「[ModifyDBClusterParameterGroup](https://sdk.amazonaws.com/kotlin/api/latest/index.html)」を参照してください。 ------ #### [ Python ] **SDK for Python (Boto3)** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/aurora#code-examples)での設定と実行の方法を確認してください。 ``` class AuroraWrapper: """Encapsulates Aurora DB cluster actions.""" def __init__(self, rds_client): """ :param rds_client: A Boto3 Amazon Relational Database Service (Amazon RDS) client. """ self.rds_client = rds_client @classmethod def from_client(cls): """ Instantiates this class from a Boto3 client. """ rds_client = boto3.client("rds") return cls(rds_client) def update_parameters(self, parameter_group_name, update_parameters): """ Updates parameters in a custom DB cluster parameter group. :param parameter_group_name: The name of the parameter group to update. :param update_parameters: The parameters to update in the group. :return: Data about the modified parameter group. """ try: response = self.rds_client.modify_db_cluster_parameter_group( DBClusterParameterGroupName=parameter_group_name, Parameters=update_parameters, ) except ClientError as err: logger.error( "Couldn't update parameters in %s. Here's why: %s: %s", parameter_group_name, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return response ``` + API の詳細については、*AWS SDK for Python (Boto3) API リファレンス*の「[ModifyDBClusterParameterGroup](https://docs.aws.amazon.com/goto/boto3/rds-2014-10-31/ModifyDBClusterParameterGroup)」を参照してください。 ------ #### [ Rust ] **SDK for Rust** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/rustv1/examples/aurora#code-examples)での設定と実行の方法を確認してください。 ``` // Modify both the auto_increment_offset and auto_increment_increment parameters in one call in the custom parameter group. Set their ParameterValue fields to a new allowable value. rds.ModifyDbClusterParameterGroup. pub async fn update_auto_increment( &self, offset: u8, increment: u8, ) -> Result<(), ScenarioError> { let modify_db_cluster_parameter_group = self .rds .modify_db_cluster_parameter_group( DB_CLUSTER_PARAMETER_GROUP_NAME, vec![ Parameter::builder() .parameter_name("auto_increment_offset") .parameter_value(format!("{offset}")) .apply_method(aws_sdk_rds::types::ApplyMethod::Immediate) .build(), Parameter::builder() .parameter_name("auto_increment_increment") .parameter_value(format!("{increment}")) .apply_method(aws_sdk_rds::types::ApplyMethod::Immediate) .build(), ], ) .await; if let Err(error) = modify_db_cluster_parameter_group { return Err(ScenarioError::new( "Failed to modify cluster parameter group", &error, )); } Ok(()) } pub async fn modify_db_cluster_parameter_group( &self, name: &str, parameters: Vec, ) -> Result> { self.inner .modify_db_cluster_parameter_group() .db_cluster_parameter_group_name(name) .set_parameters(Some(parameters)) .send() .await } #[tokio::test] async fn test_scenario_update_auto_increment() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_modify_db_cluster_parameter_group() .withf(|name, params| { assert_eq!(name, "RustSDKCodeExamplesDBParameterGroup"); assert_eq!( params, &vec![ Parameter::builder() .parameter_name("auto_increment_offset") .parameter_value("10") .apply_method(aws_sdk_rds::types::ApplyMethod::Immediate) .build(), Parameter::builder() .parameter_name("auto_increment_increment") .parameter_value("20") .apply_method(aws_sdk_rds::types::ApplyMethod::Immediate) .build(), ] ); true }) .return_once(|_, _| Ok(ModifyDbClusterParameterGroupOutput::builder().build())); let scenario = AuroraScenario::new(mock_rds); scenario .update_auto_increment(10, 20) .await .expect("update auto increment"); } #[tokio::test] async fn test_scenario_update_auto_increment_error() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_modify_db_cluster_parameter_group() .return_once(|_, _| { Err(SdkError::service_error( ModifyDBClusterParameterGroupError::unhandled(Box::new(Error::new( ErrorKind::Other, "modify_db_cluster_parameter_group_error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); let scenario = AuroraScenario::new(mock_rds); let update = scenario.update_auto_increment(10, 20).await; assert_matches!(update, Err(ScenarioError { message, context: _}) if message == "Failed to modify cluster parameter group"); } ``` + API の詳細については、「*AWS SDK for Rust API リファレンス*」の「[ModifyDBClusterParameterGroup](https://docs.rs/aws-sdk-rds/latest/aws_sdk_rds/client/struct.Client.html#method.modify_db_cluster_parameter_group)」を参照してください。 ------ #### [ SAP ABAP ] **SDK for SAP ABAP** GitHub には、その他のリソースもあります。用例一覧を検索し、[AWS コード例リポジトリ](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/rds#code-examples)での設定と実行の方法を確認してください。 ``` TRY. oo_result = lo_rds->modifydbclusterparamgroup( iv_dbclusterparamgroupname = iv_param_group_name it_parameters = it_update_parameters ). CATCH /aws1/cx_rdsdbprmgrnotfndfault. " Re-raise exception - parameter group not found RAISE EXCEPTION TYPE /aws1/cx_rdsdbprmgrnotfndfault. CATCH /aws1/cx_rdsinvdbprmgrstatef00. " Re-raise exception - invalid state RAISE EXCEPTION TYPE /aws1/cx_rdsinvdbprmgrstatef00. ENDTRY. ``` + API の詳細については、「*AWS SDK for SAP ABAP API リファレンス*」の「[ModifyDBClusterParameterGroup](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html)」を参照してください。 ------ # AWS SDKsシナリオ次のコード例は、 AWS SDKs を使用して Aurora で一般的なシナリオを実装する方法を示しています。これらのシナリオは、Aurora 内で複数の機能を呼び出すか、他の AWS のサービスと組み合わせて、特定のタスクを実行する方法を示します。各シナリオには、完全なソースコードへのリンクが含まれており、そこからコードの設定方法と実行方法に関する手順を確認できます。シナリオは、サービスアクションをコンテキストで理解するのに役立つ中級レベルの経験を対象としています。 **Topics** + [貸出ライブラリ REST API を作成する](aurora_example_cross_AuroraRestLendingLibrary_section.md) + [Aurora Serverless 作業項目トラッカーの作成](aurora_example_cross_RDSDataTracker_section.md) # 貸出ライブラリ REST API を作成する以下のコード例は、Amazon Aurora データベースでバックアップされた REST API を使用して、常連客が書籍の貸出と返却できる貸出ライブラリを作成する方法を示しています。 ------ #### [ Python ] **SDK for Python (Boto3)** Amazon Relational Database Service (Amazon RDS) API と AWS Chalice AWS SDK for Python (Boto3) でを使用して、Amazon Aurora データベースにバックアップされた REST API を作成する方法を示します。Web サービスは完全にサーバーレスであり、常連客が本を借りたり返却したりできるシンプルな貸し出しライブラリを表しています。以下ではその方法を説明しています。 + サーバーレス Aurora データベースクラスターを作成および管理します。 + AWS Secrets Manager を使用してデータベース認証情報を管理します。 + Amazon RDS を使用してデータをデータベースに出し入れするデータストレージレイヤーを実装します。 + AWS Chalice を使用して、サーバーレス REST API を Amazon API Gateway およびにデプロイします AWS Lambda。 + リクエストパッケージを使用して、Web サービスにリクエストを送信します。完全なソースコードとセットアップおよび実行の手順については、[GitHub](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/cross_service/aurora_rest_lending_library) で完全な例を参照してください。 **この例で使用されているサービス** + API ゲートウェイ + Aurora + Lambda + Secrets Manager ------ # Aurora Serverless 作業項目トラッカーの作成次のコード例は、Amazon Aurora Serverless データベースの作業項目を追跡し、Amazon Simple Email Service (Amazon SES) を使用してレポートを送信するウェブアプリケーションを作成する方法を示しています。 ------ #### [ .NET ] **SDK for .NET** を使用して AWS SDK for .NET 、Amazon Aurora データベース内の作業項目を追跡し、Amazon Simple Email Service (Amazon SES) を使用してレポートを E メールで送信するウェブアプリケーションを作成する方法を示します。この例では、React.js で構築されたフロントエンドを使用して RESTful .NET バックエンドと対話します。 + React ウェブアプリケーションを AWS サービスに統合します。 + Aurora テーブルの項目を一覧表示、更新、削除します。 + Amazon SES を使用して、フィルター処理された作業項目の E メールレポートを送信します。 + 含まれている AWS CloudFormation スクリプトを使用してサンプルリソースをデプロイおよび管理します。完全なソースコードとセットアップおよび実行の手順については、[GitHub](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv3/cross-service/AuroraItemTracker) で完全な例を参照してください。 **この例で使用されているサービス** + Aurora + Amazon RDS + Amazon RDS データサービス + Amazon SES ------ #### [ C\$1\$1 ] **SDK for C\$1\$1** Amazon Aurora Serverless データベースに保存されている作業項目を追跡して報告するウェブアプリケーションを作成する方法を説明します。 Amazon Aurora Serverless データをクエリし、React アプリケーションで使用するための C\$1\$1 REST API の完全なソースコードと設定方法については、[GitHub](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/cpp/example_code/cross-service/serverless-aurora) にある完全な例を参照してください。 **この例で使用されているサービス** + Aurora + Amazon RDS + Amazon RDS データサービス + Amazon SES ------ #### [ Java ] **SDK for Java 2.x** Amazon RDS データベースに保存されている作業項目を追跡してレポートするウェブアプリケーションを作成する方法を説明します。 Amazon Aurora サーバーレスデータをクエリする Spring REST API と React アプリケーションで使用するための完全なソースコードと設定方法については、[GitHub](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/usecases/Creating_Spring_RDS_Rest) にある完全な例を参照してください。完全なソースコードと JDBC API を使用する例のセットアップと実行の手順については、[GitHub](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/usecases/Creating_rds_item_tracker) で完全な例を参照してください。 **この例で使用されているサービス** + Aurora + Amazon RDS + Amazon RDS データサービス + Amazon SES ------ #### [ JavaScript ] **SDK for JavaScript (v3)** AWS SDK for JavaScript (v3) を使用して Amazon Aurora データベース内の作業項目を追跡し、Amazon Simple Email Service (Amazon SES) を使用してレポートを E メールで送信するウェブアプリケーションを作成する方法を示します。この例では、React.js で構築されたフロントエンドを使用して Express Node.js バックエンドと対話します。 + React.js ウェブアプリケーションをと統合します AWS のサービス。 + Aurora テーブルの項目を一覧表示、追加、更新します。 + Amazon SES を使用して、フィルター処理された作業項目の E メールレポートを送信します。 + 含まれている AWS CloudFormation スクリプトを使用してサンプルリソースをデプロイおよび管理します。完全なソースコードとセットアップおよび実行の手順については、[GitHub](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascriptv3/example_code/cross-services/aurora-serverless-app) で完全な例を参照してください。 **この例で使用されているサービス** + Aurora + Amazon RDS + Amazon RDS データサービス + Amazon SES ------ #### [ Kotlin ] **SDK for Kotlin** Amazon RDS データベースに保存されている作業項目を追跡してレポートするウェブアプリケーションを作成する方法を説明します。 Amazon Aurora サーバーレスデータをクエリする Spring REST API と React アプリケーションで使用するための完全なソースコードと設定方法については、[GitHub](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/usecases/serverless_rds) にある完全な例を参照してください。 **この例で使用されているサービス** + Aurora + Amazon RDS + Amazon RDS データサービス + Amazon SES ------ #### [ PHP ] **SDK for PHP** を使用して AWS SDK for PHP 、Amazon RDS データベース内の作業項目を追跡し、Amazon Simple Email Service (Amazon SES) を使用してレポートを E メールで送信するウェブアプリケーションを作成する方法を示します。この例では、React.js で構築されたフロントエンドを使用して RESTful PHP バックエンドと対話します。 + React.js ウェブアプリケーションを AWS サービスに統合します。 + Amazon RDS テーブル内の項目の一覧表示、追加、更新、削除を行います。 + Amazon SES を使用して、フィルター処理された作業項目の E メールレポートを送信します。 + 含まれている AWS CloudFormation スクリプトを使用してサンプルリソースをデプロイおよび管理します。完全なソースコードとセットアップおよび実行の手順については、[GitHub](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/php/cross_service/aurora_item_tracker) で完全な例を参照してください。 **この例で使用されているサービス** + Aurora + Amazon RDS + Amazon RDS データサービス + Amazon SES ------ #### [ Python ] **SDK for Python (Boto3)** を使用して AWS SDK for Python (Boto3) Amazon Aurora Serverless データベースの作業項目を追跡し、Amazon Simple Email Service (Amazon SES) を使用してレポートを E メールで送信する REST サービスを作成する方法を示します。この例では、Flask ウェブフレームワークを使用して HTTP ルーティングを処理し、React ウェブページと統合して完全に機能するウェブアプリケーションを提供しています。 + と統合する Flask REST サービスを構築します AWS のサービス。 + Aurora Serverless データベースに保存されている作業項目の読み取り、書き込み、更新を行います。 + データベース認証情報を含む AWS Secrets Manager シークレットを作成し、それを使用してデータベースへの呼び出しを認証します。 + Amazon SES を使用して作業項目のレポートを E メールで送信します。完全なソースコードとセットアップおよび実行の手順については、[GitHub](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/cross_service/aurora_item_tracker) で完全な例を参照してください。 **この例で使用されているサービス** + Aurora + Amazon RDS + Amazon RDS データサービス + Amazon SES ------