根据CloudFormation条件有条件地创建CodePipeline操作

AWSTemplateFormatVersion: '2010-09-09'
Resources:
  MyPipeline:
    Type: AWS::CodePipeline::Pipeline
    Properties:
      Name: MyPipeline
      RoleArn: arn:aws:iam::123456789012:role/MyPipelineRole
      Stages:
        - Name: Source
          Actions:
            - Name: SourceAction
              ActionTypeId:
                Category: Source
                Owner: AWS
                Provider: CodeCommit
                Version: '1'
              OutputArtifacts:
                - Name: SourceOutput
              Configuration:
                RepositoryName: MyRepo
                BranchName: master
              RunOrder: 1
        - Name: Build
          Actions:
            - Name: BuildAction
              ActionTypeId:
                Category: Build
                Owner: AWS
                Provider: CodeBuild
                Version: '1'
              InputArtifacts:
                - Name: SourceOutput
              OutputArtifacts:
                - Name: BuildOutput
              Configuration:
                ProjectName: MyBuildProject
              RunOrder: 1
      Conditions:
        CreateBuildAction: !Equals [!Ref Environment, "prod"]
  MyBuildProject:
    Type: AWS::CodeBuild::Project
    Properties:
      Name: MyBuildProject
      ServiceRole: arn:aws:iam::123456789012:role/MyBuildRole
      Source:
        Type: CODECOMMIT
        Location: !Ref RepoUrl
      Environment:
        Type: LINUX_CONTAINER
        ComputeType: BUILD_GENERAL1_SMALL
        Image: aws/codebuild/amazonlinux2-x86_64-standard:3.0
      Artifacts:
        Type: CODEPIPELINE