Amazon GameLift Open Fleet Ports then Host a Session

arazzo: 1.0.1
info:
  title: Amazon GameLift Open Fleet Ports then Host a Session
  summary: Add inbound port permissions to a fleet, confirm the settings, and launch a game session.
  description: >-
    Before players can connect to game sessions on a custom-build fleet, the
    fleet must allow inbound traffic on the game server ports. This workflow adds
    inbound permission authorizations to an existing fleet, reads back the
    fleet's port settings to confirm them, and then creates a game session on the
    fleet that players can now reach. 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: open-ports-host-session
  summary: Authorize inbound ports on a fleet, confirm them, then create a game session.
  description: >-
    Adds inbound port permissions to a fleet, retrieves the fleet's port
    settings to confirm, and creates a game session on the fleet.
  inputs:
    type: object
    required:
    - fleetId
    - inboundPermissions
    - maximumPlayerSessionCount
    properties:
      fleetId:
        type: string
        description: The fleet ID or ARN to update port settings on.
      inboundPermissions:
        type: array
        description: Inbound IP/port permission ranges to authorize on the fleet.
        items:
          type: object
      maximumPlayerSessionCount:
        type: integer
        description: Maximum number of players that can connect to the new game session.
      sessionName:
        type: string
        description: Optional descriptive label for the game session.
  steps:
  - stepId: authorizePorts
    description: >-
      Add the supplied inbound permission ranges to the fleet so game clients
      can reach game sessions.
    operationId: UpdateFleetPortSettings
    parameters:
    - name: X-Amz-Target
      in: header
      value: GameLift.UpdateFleetPortSettings
    requestBody:
      contentType: application/x-amz-json-1.1
      payload:
        FleetId: $inputs.fleetId
        InboundPermissionAuthorizations: $inputs.inboundPermissions
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      updatedFleetId: $response.body#/FleetId
  - stepId: confirmPorts
    description: >-
      Retrieve the fleet's port settings to confirm the inbound permissions were
      applied.
    operationId: DescribeFleetPortSettings
    parameters:
    - name: X-Amz-Target
      in: header
      value: GameLift.DescribeFleetPortSettings
    requestBody:
      contentType: application/x-amz-json-1.1
      payload:
        FleetId: $steps.authorizePorts.outputs.updatedFleetId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      inboundPermissions: $response.body#/InboundPermissions
  - stepId: createGameSession
    description: >-
      Create a game session on the now-reachable fleet for players to connect
      to.
    operationId: CreateGameSession
    parameters:
    - name: X-Amz-Target
      in: header
      value: GameLift.CreateGameSession
    requestBody:
      contentType: application/x-amz-json-1.1
      payload:
        FleetId: $steps.authorizePorts.outputs.updatedFleetId
        MaximumPlayerSessionCount: $inputs.maximumPlayerSessionCount
        Name: $inputs.sessionName
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      gameSessionId: $response.body#/GameSession/GameSessionId
      gameSessionStatus: $response.body#/GameSession/Status
  outputs:
    fleetId: $steps.authorizePorts.outputs.updatedFleetId
    gameSessionId: $steps.createGameSession.outputs.gameSessionId