Description: IaCBlogPipeline
Parameters:
  CFNTemplateRepoName:
    Type: String
    Description: Name of the repo which contains CFN template.
  ArtifactStoreS3Location:
    Type: String
    Description: Name of the S3 bucket to store CodePipeline artificat.
  IAMStackName:
    Type: String
    Description: Name of the stack which created SNS topic and IAM roles
    Default: "IaCBlogIAMRoles"  
  SNSStackName:
    Type: String
    Description: Name of the stack which created SNS topic and IAM roles
    Default: "IaCBlogSNSTopics"  

Resources:
  DeployPipeline:
    Type: "AWS::CodePipeline::Pipeline"
    Properties:
      Name:
        Fn::Sub: ContinuousDeliveryCFN-${AWS::StackName}
      RoleArn:
        !Join
          - ""
          - - Fn::Sub: arn:aws:iam::${AWS::AccountId}:role/
            - Fn::ImportValue: !Sub "${IAMStackName}-CodePipelineRole"
      Stages:
        -
          Name: CFNSource
          Actions:
            -
              Name: CFNTemplateSource
              ActionTypeId:
                Category: Source
                Owner: AWS
                Version: 1
                Provider: CodeCommit
              OutputArtifacts:
                -
                  Name: CFNTemplateArtifact
              Configuration:
                BranchName: master
                RepositoryName:
                  Ref: CFNTemplateRepoName
              RunOrder: 1
        -  
          Name: UAT
          Actions:
            -
              Name: CreateTestCFNStack
              InputArtifacts:
                -
                  Name: CFNTemplateArtifact
              ActionTypeId:
                Category: Deploy
                Owner: AWS
                Version: 1
                Provider: CloudFormation
              OutputArtifacts:
                -
                  Name: CreatedTestCFNStack
              Configuration:
                ActionMode: REPLACE_ON_FAILURE
                RoleArn:
                  !Join
                    - ""
                    - - Fn::Sub: arn:aws:iam::${AWS::AccountId}:role/
                      - Fn::ImportValue: !Sub "${IAMStackName}-CloudFormationRole"
                Capabilities: CAPABILITY_NAMED_IAM
                StackName:
                  Fn::Sub: Test-${AWS::StackName}
                TemplateConfiguration: CFNTemplateArtifact::uat-vpc-params.json
                TemplatePath: CFNTemplateArtifact::vpc-stack.yaml
              RunOrder: 1
            -
              Name: UATApproval
              ActionTypeId:
                Category: Approval
                Owner: AWS
                Version: 1
                Provider: Manual
              Configuration:
                NotificationArn:
                  Fn::ImportValue: !Sub ${SNSStackName}-UATTopicIaC
                CustomData: Approve once UAT has been completed.
              RunOrder: 2
            -
              Name: ProceedToProd
              ActionTypeId:
                Category: Deploy
                Owner: AWS
                Version: 1
                Provider: CloudFormation
              OutputArtifacts:
                -
                  Name: DeletedTestStack
              Configuration:
                StackName:
                  Fn::Sub: Test-${AWS::StackName}
                ActionMode: DELETE_ONLY
                RoleArn:
                  !Join
                    - ""
                    - - Fn::Sub: arn:aws:iam::${AWS::AccountId}:role/
                      - Fn::ImportValue: !Sub "${IAMStackName}-CloudFormationRole"
              RunOrder: 3
        -
          Name: Production
          Actions:
            -
              Name: CreateProdChangeSet
              InputArtifacts:
                -
                  Name: CFNTemplateArtifact
              ActionTypeId:
                Category: Deploy
                Owner: AWS
                Version: 1
                Provider: CloudFormation
              OutputArtifacts:
                -
                  Name: CreatedProdChangeSet
              Configuration:
                ActionMode: CHANGE_SET_REPLACE
                ChangeSetName: ProdCBChangeSet
                RoleArn:
                  !Join
                    - ""
                    - - Fn::Sub: arn:aws:iam::${AWS::AccountId}:role/
                      - Fn::ImportValue: !Sub "${IAMStackName}-CloudFormationRole"
                Capabilities: CAPABILITY_NAMED_IAM
                StackName:
                  Fn::Sub: Prod-${AWS::StackName}
                TemplateConfiguration: CFNTemplateArtifact::prod-vpc-params.json
                TemplatePath: CFNTemplateArtifact::vpc-stack.yaml
              RunOrder: 1
            -
              Name: ProdApproval
              ActionTypeId:
                Category: Approval
                Owner: AWS
                Version: 1
                Provider: Manual
              Configuration:
                NotificationArn:
                  Fn::ImportValue: !Sub ${SNSStackName}-ProdTopicIaC
                CustomData: Approve deployment in production.
              RunOrder: 2
            -
              Name: DeployProduction
              InputArtifacts:
                -
                  Name: CreatedProdChangeSet
              ActionTypeId:
                Category: Deploy
                Owner: AWS
                Version: 1
                Provider: CloudFormation
              Configuration:
                ActionMode: CHANGE_SET_EXECUTE
                ChangeSetName: ProdCBChangeSet
                StackName:
                  Fn::Sub: Prod-${AWS::StackName}
              RunOrder: 3

      ArtifactStore:
        Type: S3
        Location:
          Ref: ArtifactStoreS3Location