为 Amazon S3 来源创建 EventBridge 规则（Amazon CloudFormation 模板） - Amazon CodePipeline
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为 Amazon S3 来源创建 EventBridge 规则（Amazon CloudFormation 模板）

Amazon CloudFormation 要使用创建规则，请更新您的模板，如下所示。

创建以 Amazon S3 作为事件源和 CodePipeline 目标的 EventBridge 规则并应用权限策略

  1. 在模板下的模板中Resources，使用AWS::IAM::Role Amazon CloudFormation 资源配置允许您的事件启动管道的 IAM 角色。此条目将创建一个使用两个策略的角色：

    • 第一个策略允许代入角色。

    • 第二个策略提供启动管道所需的权限。

    我为何做出此更改？ 添加AWS::IAM::Role资源可以 Amazon CloudFormation 为创建权限 EventBridge。此资源已添加到您的 Amazon CloudFormation 堆栈中。

    YAML
      EventRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument:
        Version: 2012-10-17
        Statement:
          -
            Effect: Allow
            Principal:
              Service:
                - events.amazonaws.com
            Action: sts:AssumeRole
      Path: /
      Policies:
        -
          PolicyName: eb-pipeline-execution
          PolicyDocument:
            Version: 2012-10-17
            Statement:
              -
                Effect: Allow
                Action: codepipeline:StartPipelineExecution
                Resource: !Join [ '', [ 'arn:aws:codepipeline:', !Ref 'AWS::Region', ':', !Ref 'AWS::AccountId', ':', !Ref AppPipeline ] ]


...
    JSON
      "EventRole": {
    "Type": "AWS::IAM::Role",
    "Properties": {
      "AssumeRolePolicyDocument": {
        "Version": "2012-10-17",
        "Statement": [
          {
            "Effect": "Allow",
            "Principal": {
              "Service": [
                "events.amazonaws.com"
              ]
            },
            "Action": "sts:AssumeRole"
          }
        ]
      },
      "Path": "/",
      "Policies": [
        {
          "PolicyName": "eb-pipeline-execution",
          "PolicyDocument": {
            "Version": "2012-10-17",
            "Statement": [
              {
                "Effect": "Allow",
                "Action": "codepipeline:StartPipelineExecution",
                "Resource": {
                  "Fn::Join": [
                    "",
                    [
                      "arn:aws:codepipeline:",
                      {
                        "Ref": "AWS::Region"
                      },
                      ":",
                      {
                        "Ref": "AWS::AccountId"
                      },
                      ":",
                      {
                        "Ref": "AppPipeline"
                      }
                    ]
                  ]

...

  2. 使用AWS::Events::Rule Amazon CloudFormation 资源添加 EventBridge 规则。此事件模式会创建一个事件，以监控 Amazon S3 源桶上的 CopyObject、PutObject 和 CompleteMultipartUpload。此外，还包括您管道的目标。当发生 CopyObject、PutObject 或 CompleteMultipartUpload 时，此规则将对目标管道调用 StartPipelineExecution。

    我为何做出此更改？ 添加AWS::Events::Rule资源 Amazon CloudFormation 即可创建事件。此资源已添加到您的 Amazon CloudFormation 堆栈中。

    YAML
      EventRule:
    Type: AWS::Events::Rule
    Properties:
      EventPattern:
        source:
          - aws.s3
        detail-type:
          - 'AWS API Call via CloudTrail'
        detail:
          eventSource:
            - s3.amazonaws.com
          eventName:
            - CopyObject
            - PutObject
            - CompleteMultipartUpload
          requestParameters:
            bucketName:
              - !Ref SourceBucket
            key:
              - !Ref SourceObjectKey
      Targets:
        -
          Arn:
            !Join [ '', [ 'arn:aws:codepipeline:', !Ref 'AWS::Region', ':', !Ref 'AWS::AccountId', ':', !Ref AppPipeline ] ]
          RoleArn: !GetAtt EventRole.Arn
          Id: codepipeline-AppPipeline


...
    JSON
    
  "EventRule": {
    "Type": "AWS::Events::Rule",
    "Properties": {
      "EventPattern": {
        "source": [
          "aws.s3"
        ],
        "detail-type": [
          "AWS API Call via CloudTrail"
        ],
        "detail": {
          "eventSource": [
            "s3.amazonaws.com"
          ],
          "eventName": [
            "CopyObject",
            "PutObject",
            "CompleteMultipartUpload"
          ],
          "requestParameters": {
            "bucketName": [
              {
                "Ref": "SourceBucket"
              }
            ],
            "key": [
              {
                "Ref": "SourceObjectKey"
              }
            ]
          }
        }
      },
      "Targets": [
        {
          "Arn": {
            "Fn::Join": [
              "",
              [
                "arn:aws:codepipeline:",
                {
                  "Ref": "AWS::Region"
                },
                ":",
                {
                  "Ref": "AWS::AccountId"
                },
                ":",
                {
                  "Ref": "AppPipeline"
                }
              ]
            ]
          },
          "RoleArn": {
            "Fn::GetAtt": [
              "EventRole",
              "Arn"
            ]
          },
          "Id": "codepipeline-AppPipeline"
        }
      ]
    }
  }
},

...

  3. 将此代码段添加到第一个模板，以允许跨堆栈功能：

    YAML
    Outputs:
  SourceBucketARN:
    Description: "S3 bucket ARN that Cloudtrail will use"
    Value: !GetAtt SourceBucket.Arn
    Export:
      Name: SourceBucketARN
    JSON
      "Outputs" : {
    "SourceBucketARN" : {
      "Description" : "S3 bucket ARN that Cloudtrail will use",
      "Value" : { "Fn::GetAtt": ["SourceBucket", "Arn"] },
      "Export" : {
        "Name" : "SourceBucketARN"
      }
    }

...

  4. 将更新后的模板保存到本地计算机上，然后打开 Amazon CloudFormation 控制台。

  5. 选择堆栈，然后选择为当前堆栈创建更改集。

  6. 上传更新的模板，然后查看 Amazon CloudFormation中所列的更改。以下是将对堆栈进行的更改。您应在列表中看到新资源。

  7. 选择执行。

编辑管道的 PollForSourceChanges参数
重要

使用此方法创建管道时，如果 PollForSourceChanges 参数未明确设置为 false，则默认为 true。添加基于事件的更改检测时，必须将参数添加到输出并将其设置为 false 以禁用轮询。否则，您的管道将针对单个源更改启动两次。有关更多信息，请参阅 PollForSourceChanges 参数的默认设置。

  • 在模板中，将 PollForSourceChanges 更改为 false。如果您未在管道定义中包含 PollForSourceChanges，请添加它并将它设置为 false。

    我为何做出此更改？ 将 PollForSourceChanges 更改为 false 将关闭定期检查，因此您只能使用基于事件的更改检测。

    YAML
              Name: Source
          Actions: 
            - 
              Name: SourceAction
              ActionTypeId: 
                Category: Source
                Owner: AWS
                Version: 1
                Provider: S3
              OutputArtifacts: 
                - Name: SourceOutput
              Configuration: 
                S3Bucket: !Ref SourceBucket
                S3ObjectKey: !Ref SourceObjectKey
                PollForSourceChanges: false
              RunOrder: 1
    JSON
     {
    "Name": "SourceAction",
    "ActionTypeId": {
      "Category": "Source",
      "Owner": "AWS",
      "Version": 1,
      "Provider": "S3"
    },
    "OutputArtifacts": [
      {
        "Name": "SourceOutput"
      }
    ],
    "Configuration": {
      "S3Bucket": {
        "Ref": "SourceBucket"
      },
      "S3ObjectKey": {
        "Ref": "SourceObjectKey"
      },
      "PollForSourceChanges": false
    },
    "RunOrder": 1
  }
为您的 Amazon S3 管道的 CloudTrail 资源创建第二个模板

  • 在单独的模板中Resources，使用AWS::S3::BucketAWS::S3::BucketPolicy、和AWS::CloudTrail::Trail Amazon CloudFormation 资源为其提供简单的存储桶定义和跟踪 CloudTrail。

    我为何做出此更改？ 鉴于当前每个账户只能有五条 CloudTrail 跟踪，因此必须单独创建和管理跟踪。（参见中的限制 Amazon CloudTrail。） 但是，您可以在单个跟踪上包括许多 Amazon S3 桶，因此您可以创建跟踪一次，然后根据需要为其他管道添加 Amazon S3 桶。将以下内容粘贴到第二个示例模板文件中。

    YAML
    ###################################################################################
# Prerequisites: 
#   - S3 SourceBucket and SourceObjectKey must exist
###################################################################################

Parameters:
  SourceObjectKey:
    Description: 'S3 source artifact'
    Type: String
    Default: SampleApp_Linux.zip

Resources:
  AWSCloudTrailBucketPolicy:
    Type: AWS::S3::BucketPolicy
    Properties:
      Bucket: !Ref AWSCloudTrailBucket
      PolicyDocument:
        Version: 2012-10-17
        Statement:
          -
            Sid: AWSCloudTrailAclCheck
            Effect: Allow
            Principal:
              Service:
                - cloudtrail.amazonaws.com
            Action: s3:GetBucketAcl
            Resource: !GetAtt AWSCloudTrailBucket.Arn
          -
            Sid: AWSCloudTrailWrite
            Effect: Allow
            Principal:
              Service:
                - cloudtrail.amazonaws.com
            Action: s3:PutObject
            Resource: !Join [ '', [ !GetAtt AWSCloudTrailBucket.Arn, '/AWSLogs/', !Ref 'AWS::AccountId', '/*' ] ]
            Condition: 
              StringEquals:
                s3:x-amz-acl: bucket-owner-full-control
  AWSCloudTrailBucket:
    Type: AWS::S3::Bucket
    DeletionPolicy: Retain
  AwsCloudTrail:
    DependsOn:
      - AWSCloudTrailBucketPolicy
    Type: AWS::CloudTrail::Trail
    Properties:
      S3BucketName: !Ref AWSCloudTrailBucket
      EventSelectors:
        -
          DataResources:
            -
              Type: AWS::S3::Object
              Values:
                - !Join [ '', [ !ImportValue SourceBucketARN, '/', !Ref SourceObjectKey ] ]
          ReadWriteType: WriteOnly
          IncludeManagementEvents: false
      IncludeGlobalServiceEvents: true
      IsLogging: true
      IsMultiRegionTrail: true


...
    JSON
    {
  "Parameters": {
    "SourceObjectKey": {
      "Description": "S3 source artifact",
      "Type": "String",
      "Default": "SampleApp_Linux.zip"
    }
  },
  "Resources": {
    "AWSCloudTrailBucket": {
      "Type": "AWS::S3::Bucket",
        "DeletionPolicy": "Retain"
    },
    "AWSCloudTrailBucketPolicy": {
      "Type": "AWS::S3::BucketPolicy",
      "Properties": {
        "Bucket": {
          "Ref": "AWSCloudTrailBucket"
        },
        "PolicyDocument": {
          "Version": "2012-10-17",
          "Statement": [
            {
              "Sid": "AWSCloudTrailAclCheck",
              "Effect": "Allow",
              "Principal": {
                "Service": [
                  "cloudtrail.amazonaws.com"
                ]
              },
              "Action": "s3:GetBucketAcl",
              "Resource": {
                "Fn::GetAtt": [
                  "AWSCloudTrailBucket",
                  "Arn"
                ]
              }
            },
            {
              "Sid": "AWSCloudTrailWrite",
              "Effect": "Allow",
              "Principal": {
                "Service": [
                  "cloudtrail.amazonaws.com"
                ]
              },
              "Action": "s3:PutObject",
              "Resource": {
                "Fn::Join": [
                  "",
                  [
                    {
                      "Fn::GetAtt": [
                        "AWSCloudTrailBucket",
                        "Arn"
                      ]
                    },
                    "/AWSLogs/",
                    {
                      "Ref": "AWS::AccountId"
                    },
                    "/*"
                  ]
                ]
              },
              "Condition": {
                "StringEquals": {
                  "s3:x-amz-acl": "bucket-owner-full-control"
                }
              }
            }
          ]
        }
      }
    },
    "AwsCloudTrail": {
      "DependsOn": [
        "AWSCloudTrailBucketPolicy"
      ],
      "Type": "AWS::CloudTrail::Trail",
      "Properties": {
        "S3BucketName": {
          "Ref": "AWSCloudTrailBucket"
        },
        "EventSelectors": [
          {
            "DataResources": [
              {
                "Type": "AWS::S3::Object",
                "Values": [
                  {
                    "Fn::Join": [
                      "",
                      [
                        {
                          "Fn::ImportValue": "SourceBucketARN"
                        },
                        "/",
                        {
                          "Ref": "SourceObjectKey"
                        }
                      ]
                    ]
                  }
                ]
              }
            ],
            "ReadWriteType": "WriteOnly",
            "IncludeManagementEvents": false
          }
        ],
        "IncludeGlobalServiceEvents": true,
        "IsLogging": true,
        "IsMultiRegionTrail": true
      }
    }
  }
}

...