CloudFormation options passed with CodePipeline

Question

I have a SAM application and setting up CodePipeline to deploy it. I want to transfer parameters from my Pipeline to a SAM YAML file. I tried using ParameterOverrides, but it seems to still get:

Parameters: [AppName] must have values ​​(Service: AmazonCloudFormation; Status code: 400; Error code: ValidationError; Request ID: 46d1dfd6-9a9a-11e7-a59d-999618d6a174)

My parameters sam.yml

AWSTemplateFormatVersion : '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Parameters:
  AppName:
    Type: String
    Description: Prefix for resources

Part defining parameter overrides:

    - Name: ExecuteChangeSet
      Actions:
      - Name: Lambda
        ActionTypeId:
          Category: Deploy
          Owner: AWS
          Version: 1
          Provider: CloudFormation
        Configuration:
          ActionMode: CHANGE_SET_EXECUTE
          ChangeSetName: !Sub
            - '${PipelineName}-lambda'
            - {PipelineName: !Ref PipelineName}
          StackName: !Sub
            - '${PipelineName}-lambda'
            - {PipelineName: !Ref PipelineName}
          ParameterOverrides: !Sub '{"AppName": "${PipelineName}-lambda"}'

What is wrong with this?

Answer 1

, ParameterOverrides CHANGE_SET_EXECUTE. , CloudFormations ExecuteChangeSet , Parameters.

. CodePipeline CHANGE_SET_REPLACE. , CREATE_UPDATE. . AWS.

, ,

- Name: CreateChangeSet
  Actions:
    - Name: Lambda
      ActionTypeId:
        Category: Deploy
        Owner: AWS
        Version: 1
        Provider: CloudFormation
      InputArtifacts:
        - Name: BuildOutputArtifact
      Configuration:
        ActionMode: CHANGE_SET_REPLACE
        ChangeSetName: !Sub
          - '${PipelineName}-lambda'
          - {PipelineName: !Ref PipelineName}
        StackName: !Sub
          - '${PipelineName}-lambda'
          - {PipelineName: !Ref PipelineName}
        ParameterOverrides: !Ref ProjectParameterOverrides
        TemplatePath: BuildOutputArtifact::SamDeploymentTemplate.yaml
- Name: ExecuteChangeSet
  Actions:
  - Name: Lambda
    ActionTypeId:
      Category: Deploy
      Owner: AWS
      Version: 1
      Provider: CloudFormation
    Configuration:
      ActionMode: CHANGE_SET_EXECUTE
      ChangeSetName: !Sub
        - '${PipelineName}-lambda'
        - {PipelineName: !Ref PipelineName}
      StackName: !Sub
        - '${PipelineName}-lambda'
        - {PipelineName: !Ref PipelineName}