arazzo: 1.0.1
info:
  title: Amazon GameLift Verify Build Readiness then Create a Fleet
  summary: Poll a build until it is READY, then create a fleet that deploys it.
  description: >-
    Fleets can only be created from builds in READY status, which a build
    reaches after its files finish uploading. This workflow polls an existing
    build until it reports READY (branching to a terminal end if the build
    FAILED), and then creates a fleet that deploys the build on EC2 instances.
    Each step spells out its AWS JSON protocol request inline, including the
    X-Amz-Target header, so the flow can be read and executed without opening
    the underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: gameLiftApi
  url: ../openapi/amazon-gamelift-openapi.yaml
  type: openapi
workflows:
- workflowId: verify-build-create-fleet
  summary: Poll a build until READY, then create a fleet from it.
  description: >-
    Repeatedly describes a build until it is READY (or FAILED), then creates a
    fleet that deploys the build.
  inputs:
    type: object
    required:
    - buildId
    - fleetName
    - ec2InstanceType
    - runtimeConfiguration
    properties:
      buildId:
        type: string
        description: The build ID or ARN to verify and deploy.
      fleetName:
        type: string
        description: A descriptive label for the new fleet.
      ec2InstanceType:
        type: string
        description: The EC2 instance type to host game servers on (e.g. c5.large).
      runtimeConfiguration:
        type: object
        description: Instructions for how to launch and maintain server processes on each instance.
  steps:
  - stepId: pollBuildReady
    description: >-
      Describe the build and check its status. Repeat while INITIALIZED;
      proceed once the build is READY, or end if it FAILED.
    operationId: DescribeBuild
    parameters:
    - name: X-Amz-Target
      in: header
      value: GameLift.DescribeBuild
    requestBody:
      contentType: application/x-amz-json-1.1
      payload:
        BuildId: $inputs.buildId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      buildStatus: $response.body#/Build/Status
    onSuccess:
    - name: buildReady
      type: goto
      stepId: createFleet
      criteria:
      - context: $response.body
        condition: $.Build.Status == "READY"
        type: jsonpath
    - name: buildFailed
      type: end
      criteria:
      - context: $response.body
        condition: $.Build.Status == "FAILED"
        type: jsonpath
    - name: buildInitializing
      type: goto
      stepId: pollBuildReady
      criteria:
      - context: $response.body
        condition: $.Build.Status == "INITIALIZED"
        type: jsonpath
  - stepId: createFleet
    description: >-
      Create a fleet that deploys the READY build on EC2 instances.
    operationId: CreateFleet
    parameters:
    - name: X-Amz-Target
      in: header
      value: GameLift.CreateFleet
    requestBody:
      contentType: application/x-amz-json-1.1
      payload:
        Name: $inputs.fleetName
        BuildId: $inputs.buildId
        EC2InstanceType: $inputs.ec2InstanceType
        RuntimeConfiguration: $inputs.runtimeConfiguration
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      fleetId: $response.body#/FleetAttributes/FleetId
      fleetStatus: $response.body#/FleetAttributes/Status
  outputs:
    buildStatus: $steps.pollBuildReady.outputs.buildStatus
    fleetId: $steps.createFleet.outputs.fleetId