文档 AWS SDK 示例 GitHub 存储库中还有更多 S AWS DK 示例
本文属于机器翻译版本。若本译文内容与英语原文存在差异,则一律以英文原文为准。
使用 Auto Scaling 的代码示例 AWS SDKs
以下代码示例向您展示了如何将 Amazon A EC2 uto Scaling 与 AWS 软件开发套件 (SDK) 配合使用。
基础知识是向您展示如何在服务中执行基本操作的代码示例。
操作是大型程序的代码摘录,必须在上下文中运行。您可以通过操作了解如何调用单个服务函数,还可以通过函数相关场景的上下文查看操作。
场景是向您演示如何通过在一个服务中调用多个函数或与其他 AWS 服务结合来完成特定任务的代码示例。
更多资源
Auto Scaling 用户指南 — 有关 Auto Scaling 的更多信息。
Auto Scaling API 参考 — 有关所有可用的 Auto Scaling 操作的详细信息。
AWS 开发者中心
— 您可以按类别或全文搜索筛选的代码示例。 AWS SDK 示例
— 包含首选语言完整代码的 GitHub 存储库。包括有关设置和运行代码的说明。
开始使用
以下代码示例显示如何开始使用自动扩缩。
- .NET
-
- AWS SDK for .NET
-
注意
还有更多相关信息 GitHub。查找完整示例,学习如何在 AWS 代码示例存储库
中进行设置和运行。 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."); } } }
-
有关 API 的详细信息,请参阅 AWS SDK for .NET API 参考DescribeAutoScalingGroups中的。
-
- C++
-
- SDK for C++
-
注意
还有更多相关信息 GitHub。查找完整示例,学习如何在 AWS 代码示例存储库
中进行设置和运行。 CMakeLists.txt CMake 文件的代码。
# 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 源文件的代码。
#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; }
-
有关 API 的详细信息,请参阅 AWS SDK for C++ API 参考DescribeAutoScalingGroups中的。
-
- Java
-
- 适用于 Java 的 SDK 2.x
-
注意
还有更多相关信息 GitHub。查找完整示例,学习如何在 AWS 代码示例存储库
中进行设置和运行。 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()); }); } }
-
有关 API 的详细信息,请参阅 AWS SDK for Java 2.x API 参考DescribeAutoScalingGroups中的。
-
- PHP
-
- 适用于 PHP 的 SDK
-
注意
还有更多相关信息 GitHub。查找完整示例,学习如何在 AWS 代码示例存储库
中进行设置和运行。 public function helloService() { $autoScalingClient = new AutoScalingClient([ 'region' => 'us-west-2', 'version' => 'latest', 'profile' => 'default', ]); $groups = $autoScalingClient->describeAutoScalingGroups([]); var_dump($groups); }
-
有关 API 的详细信息,请参阅 AWS SDK for PHP API 参考DescribeAutoScalingGroups中的。
-
- Python
-
- 适用于 Python 的 SDK(Boto3)
-
注意
还有更多相关信息 GitHub。查找完整示例,学习如何在 AWS 代码示例存储库
中进行设置和运行。 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"))
-
有关 API 的详细信息,请参阅适用DescribeAutoScalingGroups于 Python 的AWS SDK (Boto3) API 参考。
-
- Ruby
-
- 适用于 Ruby 的 SDK
-
注意
还有更多相关信息 GitHub。查找完整示例,学习如何在 AWS 代码示例存储库
中进行设置和运行。 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
-
有关 API 的详细信息,请参阅 AWS SDK for Ruby API 参考DescribeAutoScalingGroups中的。
-
- Rust
-
- 适用于 Rust 的 SDK
-
注意
还有更多相关信息 GitHub。查找完整示例,学习如何在 AWS 代码示例存储库
中进行设置和运行。 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(()) }
-
有关 API 的详细信息,请参阅适用DescribeAutoScalingGroups
于 Rust 的AWS SDK API 参考。
-