要实现AWS Elastic Beanstalk的持续更新环境无限更新的功能，你可以使用AWS CodePipeline和AWS Elastic Beanstalk的集成。下面是一个示例解决方案，使用AWS CodePipeline从源代码库（例如GitHub）获取代码并自动部署到Elastic Beanstalk环境。

1. 创建一个CodePipeline管道：

aws codepipeline create-pipeline --pipeline-name MyPipeline --cli-input-json file://pipeline.json

其中pipeline.json文件内容如下：

{
  "pipeline": {
    "name": "MyPipeline",
    "roleArn": "arn:aws:iam::123456789012:role/MyPipelineRole",
    "artifactStore": {
      "type": "S3",
      "location": "my-pipeline-artifacts"
    },
    "stages": [
      {
        "name": "Source",
        "actions": [
          {
            "name": "SourceAction",
            "actionTypeId": {
              "category": "Source",
              "owner": "ThirdParty",
              "provider": "GitHub",
              "version": "1"
            },
            "configuration": {
              "Owner": "MyGitHubOrg",
              "Repo": "MyGitHubRepo",
              "Branch": "master",
              "OAuthToken": "my-github-oauth-token"
            },
            "outputArtifacts": [
              {
                "name": "MyApp"
              }
            ],
            "runOrder": 1
          }
        ]
      },
      {
        "name": "Build",
        "actions": [
          {
            "name": "BuildAction",
            "actionTypeId": {
              "category": "Build",
              "owner": "AWS",
              "provider": "CodeBuild",
              "version": "1"
            },
            "configuration": {
              "ProjectName": "MyCodeBuildProject"
            },
            "inputArtifacts": [
              {
                "name": "MyApp"
              }
            ],
            "outputArtifacts": [
              {
                "name": "MyAppBuild"
              }
            ],
            "runOrder": 1
          }
        ]
      },
      {
        "name": "Deploy",
        "actions": [
          {
            "name": "DeployAction",
            "actionTypeId": {
              "category": "Deploy",
              "owner": "AWS",
              "provider": "ElasticBeanstalk",
              "version": "1"
            },
            "configuration": {
              "ApplicationName": "MyElasticBeanstalkApp",
              "EnvironmentName": "MyElasticBeanstalkEnv"
            },
            "inputArtifacts": [
              {
                "name": "MyAppBuild"
              }
            ],
            "runOrder": 1
          }
        ]
      }
    ]
  },
  "tags": [
    {
      "key": "Name",
      "value": "MyPipeline"
    }
  ]
}

注意替换pipeline.json中的配置信息，如GitHub仓库的Owner、Repo、Branch和OAuthToken，以及CodeBuild项目名称、Elastic Beanstalk应用程序名称和环境名称。

2. 创建一个CodeBuild项目：

aws codebuild create-project --cli-input-json file://codebuild.json

其中codebuild.json文件内容如下：

{
  "name": "MyCodeBuildProject",
  "source": {
    "type": "CODEPIPELINE"
  },
  "artifacts": {
    "type": "CODEPIPELINE"
  },
  "environment": {
    "type": "LINUX_CONTAINER",
    "image": "aws/codebuild/standard:4.0",
    "computeType": "BUILD_GENERAL1_SMALL"
  },
  "serviceRole": "arn:aws:iam::123456789012:role/MyCodeBuildRole",
  "timeoutInMinutes": 60
}

注意替换codebuild.json中的配置信息，如项目名称和IAM角色。

3. 创建一个IAM角色用于CodePipeline和CodeBuild：

aws iam create-role --role-name MyPipelineRole --assume-role-policy-document file://pipeline-role.json
aws iam create-role --role-name MyCodeBuildRole --assume-role-policy-document file://codebuild-role.json

其中pipeline-role.json文件内容如下：

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Principal": {
        "Service": "codepipeline.amazonaws.com"
      },
      "Action": "sts:AssumeRole"
    }
  ]
}
``