Fastly Add a Domain to a Service

arazzo: 1.0.1
info:
  title: Fastly Add a Domain to a Service
  summary: Clone the active version, add a new domain to the clone, then activate it.
  description: >-
    Adds a new public domain to an already-running Fastly service without
    disturbing the live configuration. The workflow clones the current version
    into a draft, attaches the domain to the cloned version, and activates the
    clone. 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: domainApi
  url: ../openapi/fastly-domain-api-openapi.yml
  type: openapi
- name: serviceVersionApi
  url: ../openapi/fastly-service-version-api-openapi.yml
  type: openapi
workflows:
- workflowId: add-domain-to-service
  summary: Add a domain to a live service via a cloned version and activate it.
  description: >-
    Clones the supplied version, adds the supplied domain name to the clone,
    and activates the cloned version so the new domain serves traffic.
  inputs:
    type: object
    required:
    - apiToken
    - serviceId
    - versionId
    - domainName
    properties:
      apiToken:
        type: string
        description: The Fastly API token used to authenticate requests.
      serviceId:
        type: string
        description: The alphanumeric identifier of the service.
      versionId:
        type: integer
        description: The version number to clone.
      domainName:
        type: string
        description: The public domain name to add to the service.
      domainComment:
        type: string
        description: An optional comment describing the domain.
  steps:
  - stepId: cloneVersion
    description: Clone the supplied version into a new editable draft version.
    operationId: cloneServiceVersion
    parameters:
    - name: Fastly-Key
      in: header
      value: $inputs.apiToken
    - name: service_id
      in: path
      value: $inputs.serviceId
    - name: version_id
      in: path
      value: $inputs.versionId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      clonedVersion: $response.body#/number
  - stepId: addDomain
    description: Associate the new domain with the cloned draft version.
    operationId: createDomain
    parameters:
    - name: Fastly-Key
      in: header
      value: $inputs.apiToken
    - name: service_id
      in: path
      value: $inputs.serviceId
    - name: version_id
      in: path
      value: $steps.cloneVersion.outputs.clonedVersion
    requestBody:
      contentType: application/x-www-form-urlencoded
      payload:
        name: $inputs.domainName
        comment: $inputs.domainComment
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      addedDomain: $response.body#/name
  - stepId: activateVersion
    description: Activate the cloned version so the new domain goes live.
    operationId: activateServiceVersion
    parameters:
    - name: Fastly-Key
      in: header
      value: $inputs.apiToken
    - name: service_id
      in: path
      value: $inputs.serviceId
    - name: version_id
      in: path
      value: $steps.cloneVersion.outputs.clonedVersion
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      active: $response.body#/active
  outputs:
    clonedVersion: $steps.cloneVersion.outputs.clonedVersion
    addedDomain: $steps.addDomain.outputs.addedDomain
    active: $steps.activateVersion.outputs.active