文件 AWS 開發套件範例 GitHub 儲存庫中有更多可用的 [AWS SDK 範例](https://github.com/awsdocs/aws-doc-sdk-examples)。

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。

# Elastic Beanstalk 使用 AWS SDKs程式碼範例
<a name="elastic-beanstalk_code_examples"></a>

下列程式碼範例示範如何使用 AWS Elastic Beanstalk 搭配 AWS 軟體開發套件 (SDK)。

*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。

**其他資源**
+  **[Elastic Beanstalk 開發人員指南](https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/Welcome.html)** – Elastic Beanstalk 的詳細資訊。
+ **[Elastic Beanstalk API 參考](https://docs.aws.amazon.com/elasticbeanstalk/latest/api/Welcome.html)** – 所有可用 Elastic Beanstalk 動作的詳細資訊。
+ **[AWS 開發人員中心](https://aws.amazon.com/developer/code-examples/?awsf.sdk-code-examples-product=product%23)** – 您可以依類別或全文搜尋篩選的程式碼範例。
+ **[AWS SDK 範例](https://github.com/awsdocs/aws-doc-sdk-examples)** – GitHub 儲存庫使用慣用語言的完整程式碼。包含設定和執行程式碼的指示。

**Contents**
+ [基本概念](elastic-beanstalk_code_examples_basics.md)
  + [動作](elastic-beanstalk_code_examples_actions.md)
    + [`DescribeApplications`](elastic-beanstalk_example_elastic-beanstalk_DescribeApplications_section.md)
    + [`ListAvailableSolutionStacks`](elastic-beanstalk_example_elastic-beanstalk_ListAvailableSolutionStacks_section.md)
    + [`UpdateApplication`](elastic-beanstalk_example_elastic-beanstalk_UpdateApplication_section.md)

# Elastic Beanstalk 使用 AWS SDKs的基本範例
<a name="elastic-beanstalk_code_examples_basics"></a>

下列程式碼範例示範如何 AWS Elastic Beanstalk 搭配 AWS SDKs 使用 的基本概念。

**Contents**
+ [動作](elastic-beanstalk_code_examples_actions.md)
  + [`DescribeApplications`](elastic-beanstalk_example_elastic-beanstalk_DescribeApplications_section.md)
  + [`ListAvailableSolutionStacks`](elastic-beanstalk_example_elastic-beanstalk_ListAvailableSolutionStacks_section.md)
  + [`UpdateApplication`](elastic-beanstalk_example_elastic-beanstalk_UpdateApplication_section.md)

# Elastic Beanstalk 使用 AWS SDKs的動作
<a name="elastic-beanstalk_code_examples_actions"></a>

下列程式碼範例示範如何使用 AWS SDKs 執行個別 Elastic Beanstalk 動作。每個範例均包含 GitHub 的連結，您可以在連結中找到設定和執行程式碼的相關說明。

 下列範例僅包含最常使用的動作。如需完整清單，請參閱《[AWS Elastic Beanstalk API 參考](https://docs.aws.amazon.com/elasticbeanstalk/latest/api/Welcome.html)》。

**Topics**
+ [`DescribeApplications`](elastic-beanstalk_example_elastic-beanstalk_DescribeApplications_section.md)
+ [`ListAvailableSolutionStacks`](elastic-beanstalk_example_elastic-beanstalk_ListAvailableSolutionStacks_section.md)
+ [`UpdateApplication`](elastic-beanstalk_example_elastic-beanstalk_UpdateApplication_section.md)

# `DescribeApplications` 搭配 AWS SDK 或 CLI 使用
<a name="elastic-beanstalk_example_elastic-beanstalk_DescribeApplications_section"></a>

下列程式碼範例示範如何使用 `DescribeApplications`。

------
#### [ CLI ]

**AWS CLI**  
**檢視應用程式清單**  
下列命令會擷取目前區域中應用程式的相關資訊：  

```
aws elasticbeanstalk describe-applications
```
輸出：  

```
{
    "Applications": [
        {
            "ApplicationName": "ruby",
            "ConfigurationTemplates": [],
            "DateUpdated": "2015-08-13T21:05:44.376Z",
            "Versions": [
                "Sample Application"
            ],
            "DateCreated": "2015-08-13T21:05:44.376Z"
        },
        {
            "ApplicationName": "pythonsample",
            "Description": "Application created from the EB CLI using \"eb init\"",
            "Versions": [
                "Sample Application"
            ],
            "DateCreated": "2015-08-13T19:05:43.637Z",
            "ConfigurationTemplates": [],
            "DateUpdated": "2015-08-13T19:05:43.637Z"
        },
        {
            "ApplicationName": "nodejs-example",
            "ConfigurationTemplates": [],
            "DateUpdated": "2015-08-06T17:50:02.486Z",
            "Versions": [
                "add elasticache",
                "First Release"
            ],
            "DateCreated": "2015-08-06T17:50:02.486Z"
        }
    ]
}
```
+  如需 API 詳細資訊，請參閱《AWS CLI 命令參考》**中的 [DescribeApplications](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/elasticbeanstalk/describe-applications.html)。

------
#### [ Ruby ]

**SDK for Ruby**  
 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](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/elasticbeanstalk#code-examples)中設定和執行。

```
# Class to manage Elastic Beanstalk applications
class ElasticBeanstalkManager
  def initialize(eb_client, logger: Logger.new($stdout))
    @eb_client = eb_client
    @logger = logger
  end

  # Lists applications and their environments
  def list_applications
    @eb_client.describe_applications.applications.each do |application|
      log_application_details(application)
      list_environments(application.application_name)
    end
  rescue Aws::ElasticBeanstalk::Errors::ServiceError => e
    @logger.error("Elastic Beanstalk Service Error: #{e.message}")
  end

  private

  # Logs application details
  def log_application_details(application)
    @logger.info("Name:        #{application.application_name}")
    @logger.info("Description: #{application.description}")
  end

  # Lists and logs details of environments for a given application
  def list_environments(application_name)
    @eb_client.describe_environments(application_name: application_name).environments.each do |env|
      @logger.info("  Environment:  #{env.environment_name}")
      @logger.info("    URL:        #{env.cname}")
      @logger.info("    Health:     #{env.health}")
    end
  rescue Aws::ElasticBeanstalk::Errors::ServiceError => e
    @logger.error("Error listing environments for application #{application_name}: #{e.message}")
  end
end
```
+  如需 API 詳細資訊，請參閱《適用於 Ruby 的 AWS SDK API 參考》**中的 [DescribeApplications](https://docs.aws.amazon.com/goto/SdkForRubyV3/elastic-beanstalk-2010-12-01/DescribeApplications)。

------

# `ListAvailableSolutionStacks` 搭配 AWS SDK 或 CLI 使用
<a name="elastic-beanstalk_example_elastic-beanstalk_ListAvailableSolutionStacks_section"></a>

下列程式碼範例示範如何使用 `ListAvailableSolutionStacks`。

------
#### [ CLI ]

**AWS CLI**  
**檢視解決方案堆疊**  
下列命令會列出所有目前可用平台組態，以及您過去使用過的任何解決方案堆疊：  

```
aws elasticbeanstalk list-available-solution-stacks
```
輸出 (縮寫)：  

```
{
    "SolutionStacks": [
        "64bit Amazon Linux 2015.03 v2.0.0 running Node.js",
        "64bit Amazon Linux 2015.03 v2.0.0 running PHP 5.6",
        "64bit Amazon Linux 2015.03 v2.0.0 running PHP 5.5",
        "64bit Amazon Linux 2015.03 v2.0.0 running PHP 5.4",
        "64bit Amazon Linux 2015.03 v2.0.0 running Python 3.4",
        "64bit Amazon Linux 2015.03 v2.0.0 running Python 2.7",
        "64bit Amazon Linux 2015.03 v2.0.0 running Python",
        "64bit Amazon Linux 2015.03 v2.0.0 running Ruby 2.2 (Puma)",
        "64bit Amazon Linux 2015.03 v2.0.0 running Ruby 2.2 (Passenger Standalone)",
        "64bit Amazon Linux 2015.03 v2.0.0 running Ruby 2.1 (Puma)",
        "64bit Amazon Linux 2015.03 v2.0.0 running Ruby 2.1 (Passenger Standalone)",
        "64bit Amazon Linux 2015.03 v2.0.0 running Ruby 2.0 (Puma)",
        "64bit Amazon Linux 2015.03 v2.0.0 running Ruby 2.0 (Passenger Standalone)",
        "64bit Amazon Linux 2015.03 v2.0.0 running Ruby 1.9.3",
        "64bit Amazon Linux 2015.03 v2.0.0 running Tomcat 8 Java 8",
        "64bit Amazon Linux 2015.03 v2.0.0 running Tomcat 7 Java 7",
        "64bit Amazon Linux 2015.03 v2.0.0 running Tomcat 7 Java 6",
        "64bit Windows Server Core 2012 R2 running IIS 8.5",
        "64bit Windows Server 2012 R2 running IIS 8.5",
        "64bit Windows Server 2012 running IIS 8",
        "64bit Windows Server 2008 R2 running IIS 7.5",
        "64bit Amazon Linux 2015.03 v2.0.0 running Docker 1.6.2",
        "64bit Amazon Linux 2015.03 v2.0.0 running Multi-container Docker 1.6.2 (Generic)",
        "64bit Debian jessie v2.0.0 running GlassFish 4.1 Java 8 (Preconfigured - Docker)",
        "64bit Debian jessie v2.0.0 running GlassFish 4.0 Java 7 (Preconfigured - Docker)",
        "64bit Debian jessie v2.0.0 running Go 1.4 (Preconfigured - Docker)",
        "64bit Debian jessie v2.0.0 running Go 1.3 (Preconfigured - Docker)",
        "64bit Debian jessie v2.0.0 running Python 3.4 (Preconfigured - Docker)",
    ],
    "SolutionStackDetails": [
        {
            "PermittedFileTypes": [
                "zip"
            ],
            "SolutionStackName": "64bit Amazon Linux 2015.03 v2.0.0 running Node.js"
        },
        ...
    ]
}
```
+  如需 API 詳細資訊，請參閱《AWS CLI 命令參考》**中的 [ListAvailableSolutionStacks](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/elasticbeanstalk/list-available-solution-stacks.html)。

------
#### [ Ruby ]

**SDK for Ruby**  
 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](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/elasticbeanstalk#code-examples)中設定和執行。

```
# Manages listing of AWS Elastic Beanstalk solution stacks
# @param [Aws::ElasticBeanstalk::Client] eb_client
# @param [String] filter - Returns subset of results based on match
# @param [Logger] logger
class StackLister
  # Initialize with AWS Elastic Beanstalk client
  def initialize(eb_client, filter, logger: Logger.new($stdout))
    @eb_client = eb_client
    @filter = filter.downcase
    @logger = logger
  end

  # Lists and logs Elastic Beanstalk solution stacks
  def list_stacks
    stacks = @eb_client.list_available_solution_stacks.solution_stacks
    orig_length = stacks.length
    filtered_length = 0

    stacks.each do |stack|
      if @filter.empty? || stack.downcase.include?(@filter)
        @logger.info(stack)
        filtered_length += 1
      end
    end

    log_summary(filtered_length, orig_length)
  rescue Aws::Errors::ServiceError => e
    @logger.error("Error listing solution stacks: #{e.message}")
  end

  private

  # Logs summary of listed stacks
  def log_summary(filtered_length, orig_length)
    if @filter.empty?
      @logger.info("Showed #{orig_length} stack(s)")
    else
      @logger.info("Showed #{filtered_length} stack(s) of #{orig_length}")
    end
  end
end
```
+  如需 API 詳細資訊，請參閱《適用於 Ruby 的 AWS SDK API 參考》**中的 [ListAvailableSolutionStacks](https://docs.aws.amazon.com/goto/SdkForRubyV3/elastic-beanstalk-2010-12-01/ListAvailableSolutionStacks)。

------

# `UpdateApplication` 搭配 AWS SDK 或 CLI 使用
<a name="elastic-beanstalk_example_elastic-beanstalk_UpdateApplication_section"></a>

下列程式碼範例示範如何使用 `UpdateApplication`。

------
#### [ CLI ]

**AWS CLI**  
**變更應用程式的描述**  
下列命令會更新名為 `my-app` 之應用程式的描述：  

```
aws elasticbeanstalk update-application --application-name my-app --description "my Elastic Beanstalk application"
```
輸出：  

```
{
    "Application": {
        "ApplicationName": "my-app",
        "Description": "my Elastic Beanstalk application",
        "Versions": [
            "2fba-stage-150819_234450",
            "bf07-stage-150820_214945",
            "93f8",
            "fd7c-stage-150820_000431",
            "22a0-stage-150819_185942"
        ],
        "DateCreated": "2015-08-13T19:15:50.449Z",
        "ConfigurationTemplates": [],
        "DateUpdated": "2015-08-20T22:34:56.195Z"
    }
}
```
+  如需 API 詳細資訊，請參閱《AWS CLI 命令參考》**中的 [UpdateApplication](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/elasticbeanstalk/update-application.html)。

------
#### [ Ruby ]

**SDK for Ruby**  
 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](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/ruby/example_code/elasticbeanstalk#code-examples)中設定和執行。

```
# Manages deployment of Rails applications to AWS Elastic Beanstalk
class RailsAppDeployer
  def initialize(eb_client, s3_client, app_name, logger: Logger.new($stdout))
    @eb_client = eb_client
    @s3_client = s3_client
    @app_name = app_name
    @logger = logger
  end

  # Deploys the latest application version to Elastic Beanstalk
  def deploy
    create_storage_location
    zip_file_name = create_zip_file
    upload_zip_to_s3(zip_file_name)
    create_and_deploy_new_application_version(zip_file_name)
  end

  private

  # Creates a new S3 storage location for the application
  def create_storage_location
    resp = @eb_client.create_storage_location
    @logger.info("Created storage location in bucket #{resp.s3_bucket}")
  rescue Aws::Errors::ServiceError => e
    @logger.error("Failed to create storage location: #{e.message}")
  end

  # Creates a ZIP file of the application using git
  def create_zip_file
    zip_file_basename = SecureRandom.urlsafe_base64
    zip_file_name = "#{zip_file_basename}.zip"
    `git archive --format=zip -o #{zip_file_name} HEAD`
    zip_file_name
  end

  # Uploads the ZIP file to the S3 bucket
  def upload_zip_to_s3(zip_file_name)
    zip_contents = File.read(zip_file_name)
    key = "#{@app_name}/#{zip_file_name}"
    @s3_client.put_object(body: zip_contents, bucket: fetch_bucket_name, key: key)
  rescue Aws::Errors::ServiceError => e
    @logger.error("Failed to upload ZIP file to S3: #{e.message}")
  end

  # Fetches the S3 bucket name from Elastic Beanstalk application versions
  def fetch_bucket_name
    app_versions = @eb_client.describe_application_versions(application_name: @app_name)
    av = app_versions.application_versions.first
    av.source_bundle.s3_bucket
  rescue Aws::Errors::ServiceError => e
    @logger.error("Failed to fetch bucket name: #{e.message}")
    raise
  end

  # Creates a new application version and deploys it
  def create_and_deploy_new_application_version(zip_file_name)
    version_label = File.basename(zip_file_name, '.zip')
    @eb_client.create_application_version(
      process: false,
      application_name: @app_name,
      version_label: version_label,
      source_bundle: {
        s3_bucket: fetch_bucket_name,
        s3_key: "#{@app_name}/#{zip_file_name}"
      },
      description: "Updated #{Time.now.strftime('%d/%m/%Y')}"
    )
    update_environment(version_label)
  rescue Aws::Errors::ServiceError => e
    @logger.error("Failed to create or deploy application version: #{e.message}")
  end

  # Updates the environment to the new application version
  def update_environment(version_label)
    env_name = fetch_environment_name
    @eb_client.update_environment(
      environment_name: env_name,
      version_label: version_label
    )
  rescue Aws::Errors::ServiceError => e
    @logger.error("Failed to update environment: #{e.message}")
  end

  # Fetches the environment name of the application
  def fetch_environment_name
    envs = @eb_client.describe_environments(application_name: @app_name)
    envs.environments.first.environment_name
  rescue Aws::Errors::ServiceError => e
    @logger.error("Failed to fetch environment name: #{e.message}")
    raise
  end
end
```
+  如需 API 詳細資訊，請參閱《適用於 Ruby 的 AWS SDK API 參考》**中的 [UpdateApplication](https://docs.aws.amazon.com/goto/SdkForRubyV3/elastic-beanstalk-2010-12-01/UpdateApplication)。

------