本文為英文版的機器翻譯版本,如內容有任何歧義或不一致之處,概以英文版為準。
本文為英文版的機器翻譯版本,如內容有任何歧義或不一致之處,概以英文版為準。
下列程式碼範例示範如何使用 Auto Scaling 搭配 AWS 軟體開發套件 (SDK)。
基本概念是程式碼範例,這些範例說明如何在服務內執行基本操作。
Actions 是大型程式的程式碼摘錄,必須在內容中執行。雖然動作會告訴您如何呼叫個別服務函數,但您可以在其相關情境中查看內容中的動作。
案例是向您展示如何呼叫服務中的多個函數或與其他 AWS 服務組合來完成特定任務的程式碼範例。
如需 AWS SDK 開發人員指南和程式碼範例的完整清單,請參閱 搭配 AWS SDK 使用此服務。此主題也包含入門相關資訊和舊版 SDK 的詳細資訊。
開始使用
下列程式碼範例示範如何開始使用 Auto Scaling。
- .NET
-
- 適用於 .NET 的 SDK
-
注意
GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 namespace AutoScalingActions; using Amazon.AutoScaling; public class HelloAutoScaling { /// <summary> /// Hello Amazon EC2 Auto Scaling. List EC2 Auto Scaling groups. /// </summary> /// <param name="args"></param> /// <returns>Async Task.</returns> static async Task Main(string[] args) { var client = new AmazonAutoScalingClient(); Console.WriteLine("Welcome to Amazon EC2 Auto Scaling."); Console.WriteLine("Let's get a description of your Auto Scaling groups."); var response = await client.DescribeAutoScalingGroupsAsync(); response.AutoScalingGroups.ForEach(autoScalingGroup => { Console.WriteLine($"{autoScalingGroup.AutoScalingGroupName}\t{autoScalingGroup.AvailabilityZones}"); }); if (response.AutoScalingGroups.Count == 0) { Console.WriteLine("Sorry, you don't have any Amazon EC2 Auto Scaling groups."); } } }
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如需 API 詳細資訊,請參閱適用於 .NET 的 AWS SDK 《 API 參考》中的 DescribeAutoScalingGroups。
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- C++
-
- SDK for C++
-
注意
GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 CMakeLists.txt CMake 檔案的程式碼。
# 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 autoscaling) # Set this project's name. project("hello_autoscaling") # 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(${PROJECT_NAME} hello_autoscaling.cpp) target_link_libraries(${PROJECT_NAME} ${AWSSDK_LINK_LIBRARIES})
hello_autoscaling.cpp 來源檔案的程式碼。
#include <aws/core/Aws.h> #include <aws/autoscaling/AutoScalingClient.h> #include <aws/autoscaling/model/DescribeAutoScalingGroupsRequest.h> #include <iostream> /* * A "Hello Autoscaling" starter application which initializes an Amazon EC2 Auto Scaling client and describes the * Amazon EC2 Auto Scaling groups. * * main function * * Usage: 'hello_autoscaling' * */ 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::AutoScaling::AutoScalingClient autoscalingClient(clientConfig); std::vector<Aws::String> groupNames; Aws::String nextToken; // Used for pagination. do { Aws::AutoScaling::Model::DescribeAutoScalingGroupsRequest request; if (!nextToken.empty()) { request.SetNextToken(nextToken); } Aws::AutoScaling::Model::DescribeAutoScalingGroupsOutcome outcome = autoscalingClient.DescribeAutoScalingGroups(request); if (outcome.IsSuccess()) { const Aws::Vector<Aws::AutoScaling::Model::AutoScalingGroup> &autoScalingGroups = outcome.GetResult().GetAutoScalingGroups(); for (auto &group: autoScalingGroups) { groupNames.push_back(group.GetAutoScalingGroupName()); } nextToken = outcome.GetResult().GetNextToken(); } else { std::cerr << "Error with AutoScaling::DescribeAutoScalingGroups. " << outcome.GetError().GetMessage() << std::endl; result = 1; break; } } while (!nextToken.empty()); std::cout << "Found " << groupNames.size() << " AutoScaling groups." << std::endl; for (auto &groupName: groupNames) { std::cout << "AutoScaling group: " << groupName << std::endl; } } Aws::ShutdownAPI(options); // Should only be called once. return result; }
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如需 API 詳細資訊,請參閱適用於 C++ 的 AWS SDK 《 API 參考》中的 DescribeAutoScalingGroups。
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- Java
-
- SDK for Java 2.x
-
注意
GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 import software.amazon.awssdk.regions.Region; import software.amazon.awssdk.services.autoscaling.AutoScalingClient; import software.amazon.awssdk.services.autoscaling.model.AutoScalingGroup; import software.amazon.awssdk.services.autoscaling.model.DescribeAutoScalingGroupsResponse; import java.util.List; /** * Before running this SDK for Java (v2) code example, set up your development * environment, including your credentials. * * For more information, see the following documentation: * * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html */ public class DescribeAutoScalingGroups { public static void main(String[] args) throws InterruptedException { AutoScalingClient autoScalingClient = AutoScalingClient.builder() .region(Region.US_EAST_1) .build(); describeGroups(autoScalingClient); } public static void describeGroups(AutoScalingClient autoScalingClient) { DescribeAutoScalingGroupsResponse response = autoScalingClient.describeAutoScalingGroups(); List<AutoScalingGroup> groups = response.autoScalingGroups(); groups.forEach(group -> { System.out.println("Group Name: " + group.autoScalingGroupName()); System.out.println("Group ARN: " + group.autoScalingGroupARN()); }); } }
-
如需 API 詳細資訊,請參閱AWS SDK for Java 2.x 《 API 參考》中的 DescribeAutoScalingGroups。
-
- PHP
-
- SDK for PHP
-
注意
GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 public function helloService() { $autoScalingClient = new AutoScalingClient([ 'region' => 'us-west-2', 'version' => 'latest', 'profile' => 'default', ]); $groups = $autoScalingClient->describeAutoScalingGroups([]); var_dump($groups); }
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如需 API 詳細資訊,請參閱適用於 PHP 的 AWS SDK 《 API 參考》中的 DescribeAutoScalingGroups。
-
- Python
-
- SDK for Python (Boto3)
-
注意
GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 import boto3 def hello_autoscaling(autoscaling_client): """ Use the AWS SDK for Python (Boto3) to create an Amazon EC2 Auto Scaling client and list some of the Auto Scaling groups in your account. This example uses the default settings specified in your shared credentials and config files. :param autoscaling_client: A Boto3 Amazon EC2 Auto Scaling client object. """ print( "Hello, Amazon EC2 Auto Scaling! Let's list up to ten of you Auto Scaling groups:" ) response = autoscaling_client.describe_auto_scaling_groups() groups = response.get("AutoScalingGroups", []) if groups: for group in groups: print(f"\t{group['AutoScalingGroupName']}: {group['AvailabilityZones']}") else: print("There are no Auto Scaling groups in your account.") if __name__ == "__main__": hello_autoscaling(boto3.client("autoscaling"))
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如需 API 詳細資訊,請參閱《適用於 AWS Python (Boto3) 的 SDK API 參考》中的 DescribeAutoScalingGroups。
-
- Ruby
-
- SDK for Ruby
-
注意
GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 require 'aws-sdk-autoscaling' require 'logger' # AutoScalingManager is a class responsible for managing AWS Auto Scaling operations # such as listing all Auto Scaling groups in the current AWS account. class AutoScalingManager def initialize(client) @client = client @logger = Logger.new($stdout) end # Gets and prints a list of Auto Scaling groups for the account. def list_auto_scaling_groups paginator = @client.describe_auto_scaling_groups auto_scaling_groups = [] paginator.each_page do |page| auto_scaling_groups.concat(page.auto_scaling_groups) end if auto_scaling_groups.empty? @logger.info('No Auto Scaling groups found for this account.') else auto_scaling_groups.each do |group| @logger.info("Auto Scaling group name: #{group.auto_scaling_group_name}") @logger.info(" Group ARN: #{group.auto_scaling_group_arn}") @logger.info(" Min/max/desired: #{group.min_size}/#{group.max_size}/#{group.desired_capacity}") @logger.info("\n") end end end end if $PROGRAM_NAME == __FILE__ autoscaling_client = Aws::AutoScaling::Client.new manager = AutoScalingManager.new(autoscaling_client) manager.list_auto_scaling_groups end
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如需 API 詳細資訊,請參閱適用於 Ruby 的 AWS SDK 《 API 參考》中的 DescribeAutoScalingGroups。
-
- Rust
-
- SDK for Rust
-
注意
GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 async fn list_groups(client: &Client) -> Result<(), Error> { let resp = client.describe_auto_scaling_groups().send().await?; println!("Groups:"); let groups = resp.auto_scaling_groups(); for group in groups { println!( "Name: {}", group.auto_scaling_group_name().unwrap_or("Unknown") ); println!( "Arn: {}", group.auto_scaling_group_arn().unwrap_or("unknown"), ); println!("Zones: {:?}", group.availability_zones(),); println!(); } println!("Found {} group(s)", groups.len()); Ok(()) }
-
如需 API 詳細資訊,請參閱《適用於 AWS Rust 的 SDK API 參考》中的 DescribeAutoScalingGroups
。
-
Hello Auto Scaling
下列程式碼範例示範如何開始使用 Auto Scaling。
- .NET
-
- 適用於 .NET 的 SDK
-
注意
GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 namespace AutoScalingActions; using Amazon.AutoScaling; public class HelloAutoScaling { /// <summary> /// Hello Amazon EC2 Auto Scaling. List EC2 Auto Scaling groups. /// </summary> /// <param name="args"></param> /// <returns>Async Task.</returns> static async Task Main(string[] args) { var client = new AmazonAutoScalingClient(); Console.WriteLine("Welcome to Amazon EC2 Auto Scaling."); Console.WriteLine("Let's get a description of your Auto Scaling groups."); var response = await client.DescribeAutoScalingGroupsAsync(); response.AutoScalingGroups.ForEach(autoScalingGroup => { Console.WriteLine($"{autoScalingGroup.AutoScalingGroupName}\t{autoScalingGroup.AvailabilityZones}"); }); if (response.AutoScalingGroups.Count == 0) { Console.WriteLine("Sorry, you don't have any Amazon EC2 Auto Scaling groups."); } } }
-
如需 API 詳細資訊,請參閱適用於 .NET 的 AWS SDK 《 API 參考》中的 DescribeAutoScalingGroups。
-
- C++
-
- SDK for C++
-
注意
GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 CMakeLists.txt CMake 檔案的程式碼。
# 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 autoscaling) # Set this project's name. project("hello_autoscaling") # 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(${PROJECT_NAME} hello_autoscaling.cpp) target_link_libraries(${PROJECT_NAME} ${AWSSDK_LINK_LIBRARIES})
hello_autoscaling.cpp 來源檔案的程式碼。
#include <aws/core/Aws.h> #include <aws/autoscaling/AutoScalingClient.h> #include <aws/autoscaling/model/DescribeAutoScalingGroupsRequest.h> #include <iostream> /* * A "Hello Autoscaling" starter application which initializes an Amazon EC2 Auto Scaling client and describes the * Amazon EC2 Auto Scaling groups. * * main function * * Usage: 'hello_autoscaling' * */ 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::AutoScaling::AutoScalingClient autoscalingClient(clientConfig); std::vector<Aws::String> groupNames; Aws::String nextToken; // Used for pagination. do { Aws::AutoScaling::Model::DescribeAutoScalingGroupsRequest request; if (!nextToken.empty()) { request.SetNextToken(nextToken); } Aws::AutoScaling::Model::DescribeAutoScalingGroupsOutcome outcome = autoscalingClient.DescribeAutoScalingGroups(request); if (outcome.IsSuccess()) { const Aws::Vector<Aws::AutoScaling::Model::AutoScalingGroup> &autoScalingGroups = outcome.GetResult().GetAutoScalingGroups(); for (auto &group: autoScalingGroups) { groupNames.push_back(group.GetAutoScalingGroupName()); } nextToken = outcome.GetResult().GetNextToken(); } else { std::cerr << "Error with AutoScaling::DescribeAutoScalingGroups. " << outcome.GetError().GetMessage() << std::endl; result = 1; break; } } while (!nextToken.empty()); std::cout << "Found " << groupNames.size() << " AutoScaling groups." << std::endl; for (auto &groupName: groupNames) { std::cout << "AutoScaling group: " << groupName << std::endl; } } Aws::ShutdownAPI(options); // Should only be called once. return result; }
-
如需 API 詳細資訊,請參閱適用於 C++ 的 AWS SDK 《 API 參考》中的 DescribeAutoScalingGroups。
-
- Java
-
- SDK for Java 2.x
-
注意
GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 import software.amazon.awssdk.regions.Region; import software.amazon.awssdk.services.autoscaling.AutoScalingClient; import software.amazon.awssdk.services.autoscaling.model.AutoScalingGroup; import software.amazon.awssdk.services.autoscaling.model.DescribeAutoScalingGroupsResponse; import java.util.List; /** * Before running this SDK for Java (v2) code example, set up your development * environment, including your credentials. * * For more information, see the following documentation: * * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html */ public class DescribeAutoScalingGroups { public static void main(String[] args) throws InterruptedException { AutoScalingClient autoScalingClient = AutoScalingClient.builder() .region(Region.US_EAST_1) .build(); describeGroups(autoScalingClient); } public static void describeGroups(AutoScalingClient autoScalingClient) { DescribeAutoScalingGroupsResponse response = autoScalingClient.describeAutoScalingGroups(); List<AutoScalingGroup> groups = response.autoScalingGroups(); groups.forEach(group -> { System.out.println("Group Name: " + group.autoScalingGroupName()); System.out.println("Group ARN: " + group.autoScalingGroupARN()); }); } }
-
如需 API 詳細資訊,請參閱AWS SDK for Java 2.x 《 API 參考》中的 DescribeAutoScalingGroups。
-
- PHP
-
- SDK for PHP
-
注意
GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 public function helloService() { $autoScalingClient = new AutoScalingClient([ 'region' => 'us-west-2', 'version' => 'latest', 'profile' => 'default', ]); $groups = $autoScalingClient->describeAutoScalingGroups([]); var_dump($groups); }
-
如需 API 詳細資訊,請參閱適用於 PHP 的 AWS SDK 《 API 參考》中的 DescribeAutoScalingGroups。
-
- Python
-
- SDK for Python (Boto3)
-
注意
GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 import boto3 def hello_autoscaling(autoscaling_client): """ Use the AWS SDK for Python (Boto3) to create an Amazon EC2 Auto Scaling client and list some of the Auto Scaling groups in your account. This example uses the default settings specified in your shared credentials and config files. :param autoscaling_client: A Boto3 Amazon EC2 Auto Scaling client object. """ print( "Hello, Amazon EC2 Auto Scaling! Let's list up to ten of you Auto Scaling groups:" ) response = autoscaling_client.describe_auto_scaling_groups() groups = response.get("AutoScalingGroups", []) if groups: for group in groups: print(f"\t{group['AutoScalingGroupName']}: {group['AvailabilityZones']}") else: print("There are no Auto Scaling groups in your account.") if __name__ == "__main__": hello_autoscaling(boto3.client("autoscaling"))
-
如需 API 詳細資訊,請參閱《適用於 AWS Python (Boto3) 的 SDK API 參考》中的 DescribeAutoScalingGroups。
-
- Ruby
-
- SDK for Ruby
-
注意
GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 require 'aws-sdk-autoscaling' require 'logger' # AutoScalingManager is a class responsible for managing AWS Auto Scaling operations # such as listing all Auto Scaling groups in the current AWS account. class AutoScalingManager def initialize(client) @client = client @logger = Logger.new($stdout) end # Gets and prints a list of Auto Scaling groups for the account. def list_auto_scaling_groups paginator = @client.describe_auto_scaling_groups auto_scaling_groups = [] paginator.each_page do |page| auto_scaling_groups.concat(page.auto_scaling_groups) end if auto_scaling_groups.empty? @logger.info('No Auto Scaling groups found for this account.') else auto_scaling_groups.each do |group| @logger.info("Auto Scaling group name: #{group.auto_scaling_group_name}") @logger.info(" Group ARN: #{group.auto_scaling_group_arn}") @logger.info(" Min/max/desired: #{group.min_size}/#{group.max_size}/#{group.desired_capacity}") @logger.info("\n") end end end end if $PROGRAM_NAME == __FILE__ autoscaling_client = Aws::AutoScaling::Client.new manager = AutoScalingManager.new(autoscaling_client) manager.list_auto_scaling_groups end
-
如需 API 詳細資訊,請參閱適用於 Ruby 的 AWS SDK 《 API 參考》中的 DescribeAutoScalingGroups。
-
- Rust
-
- SDK for Rust
-
注意
GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 async fn list_groups(client: &Client) -> Result<(), Error> { let resp = client.describe_auto_scaling_groups().send().await?; println!("Groups:"); let groups = resp.auto_scaling_groups(); for group in groups { println!( "Name: {}", group.auto_scaling_group_name().unwrap_or("Unknown") ); println!( "Arn: {}", group.auto_scaling_group_arn().unwrap_or("unknown"), ); println!("Zones: {:?}", group.availability_zones(),); println!(); } println!("Found {} group(s)", groups.len()); Ok(()) }
-
如需 API 詳細資訊,請參閱《適用於 AWS Rust 的 SDK API 參考》中的 DescribeAutoScalingGroups
。
-
- 適用於 .NET 的 SDK
-
注意
GitHub 上提供更多範例。尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 namespace AutoScalingActions; using Amazon.AutoScaling; public class HelloAutoScaling { /// <summary> /// Hello Amazon EC2 Auto Scaling. List EC2 Auto Scaling groups. /// </summary> /// <param name="args"></param> /// <returns>Async Task.</returns> static async Task Main(string[] args) { var client = new AmazonAutoScalingClient(); Console.WriteLine("Welcome to Amazon EC2 Auto Scaling."); Console.WriteLine("Let's get a description of your Auto Scaling groups."); var response = await client.DescribeAutoScalingGroupsAsync(); response.AutoScalingGroups.ForEach(autoScalingGroup => { Console.WriteLine($"{autoScalingGroup.AutoScalingGroupName}\t{autoScalingGroup.AvailabilityZones}"); }); if (response.AutoScalingGroups.Count == 0) { Console.WriteLine("Sorry, you don't have any Amazon EC2 Auto Scaling groups."); } } }
-
如需 API 詳細資訊,請參閱適用於 .NET 的 AWS SDK 《 API 參考》中的 DescribeAutoScalingGroups。
-