AWS SAR Deploy Application Via Change Set

arazzo: 1.0.1
info:
  title: AWS SAR Deploy Application Via Change Set
  summary: Publish an application version, then create a CloudFormation change set to deploy it into a stack.
  description: >-
    Drives a serverless application from publication to a deployable
    CloudFormation change set. The workflow publishes a new application version
    from a packaged SAM template and then requests an AWS CloudFormation change
    set targeting a named stack at that semantic version, returning the change
    set and stack identifiers a caller would execute next. The Serverless
    Application Repository API exposes only change set creation (there is no
    get-change-set or template-fetch operation), so verification is adapted to
    confirm the returned change set identifiers. Every step spells out its
    request inline so the flow can be read and executed without opening the
    underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: serverlessRepoApi
  url: ../openapi/amazon-serverless-application-repository-openapi.yml
  type: openapi
workflows:
- workflowId: deploy-via-change-set
  summary: Publish a version and create a CloudFormation change set for a stack.
  description: >-
    Creates a new application version from a packaged SAM template, then creates
    a CloudFormation change set for the supplied stack at that version.
  inputs:
    type: object
    required:
    - applicationId
    - semanticVersion
    - templateBody
    - stackName
    properties:
      applicationId:
        type: string
        description: The Amazon Resource Name (ARN) of the application.
      semanticVersion:
        type: string
        description: The semantic version to publish and deploy (e.g. 1.0.0).
      templateBody:
        type: string
        description: The raw packaged AWS SAM template of your application.
      sourceCodeUrl:
        type: string
        description: A link to a public repository for the source code.
      stackName:
        type: string
        description: The name or unique ID of the stack to create a change set for.
      changeSetName:
        type: string
        description: The name of the change set.
      capabilities:
        type: array
        items:
          type: string
        description: Values you must specify before deploying certain applications.
  steps:
  - stepId: createVersion
    description: >-
      Publish the new application version from the supplied packaged SAM
      template so it can be deployed.
    operationId: CreateApplicationVersion
    parameters:
    - name: applicationId
      in: path
      value: $inputs.applicationId
    requestBody:
      contentType: application/json
      payload:
        semanticVersion: $inputs.semanticVersion
        templateBody: $inputs.templateBody
        sourceCodeUrl: $inputs.sourceCodeUrl
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      semanticVersion: $response.body#/semanticVersion
  - stepId: createChangeSet
    description: >-
      Create an AWS CloudFormation change set for the supplied stack at the
      version just published.
    operationId: CreateCloudFormationChangeSet
    parameters:
    - name: applicationId
      in: path
      value: $inputs.applicationId
    requestBody:
      contentType: application/json
      payload:
        stackName: $inputs.stackName
        changeSetName: $inputs.changeSetName
        semanticVersion: $steps.createVersion.outputs.semanticVersion
        capabilities: $inputs.capabilities
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      changeSetId: $response.body#/changeSetId
      stackId: $response.body#/stackId
      semanticVersion: $response.body#/semanticVersion
  outputs:
    changeSetId: $steps.createChangeSet.outputs.changeSetId
    stackId: $steps.createChangeSet.outputs.stackId
    deployedVersion: $steps.createChangeSet.outputs.semanticVersion