GitHub Actions Register a Self-hosted Runner

arazzo: 1.0.1
info:
  title: GitHub Actions Register a Self-hosted Runner
  summary: List the available runner application binaries, mint a registration token, then list the repository's runners.
  description: >-
    Prepares everything an operator needs to bring a self-hosted runner online.
    The workflow lists the runner application binaries available for download,
    creates a short-lived registration token to pass to the runner config
    script, and lists the repository's currently registered runners so the
    operator can confirm the inventory before and after configuration. 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: selfHostedRunnersApi
  url: ../openapi/github-actions-self-hosted-runners-api-openapi.yml
  type: openapi
workflows:
- workflowId: register-runner
  summary: Gather runner binaries and a registration token for a repository.
  description: >-
    Lists downloadable runner applications, mints a registration token, and
    lists the repository's self-hosted runners.
  inputs:
    type: object
    required:
    - accessToken
    - owner
    - repo
    properties:
      accessToken:
        type: string
        description: GitHub bearer token with repository administration access.
      owner:
        type: string
        description: The account owner of the repository.
      repo:
        type: string
        description: The name of the repository without the .git extension.
  steps:
  - stepId: listRunnerApplications
    description: >-
      List the runner application binaries available for download so the right
      OS/architecture package can be chosen.
    operationId: listRunnerApplicationsForRepo
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    - name: owner
      in: path
      value: $inputs.owner
    - name: repo
      in: path
      value: $inputs.repo
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      firstDownloadUrl: $response.body#/0/download_url
      firstOs: $response.body#/0/os
  - stepId: createRegistrationToken
    description: >-
      Create a registration token to pass to the self-hosted runner config
      script. Returns 201 with a token and its expiry.
    operationId: createRegistrationTokenForRepo
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    - name: owner
      in: path
      value: $inputs.owner
    - name: repo
      in: path
      value: $inputs.repo
    successCriteria:
    - condition: $statusCode == 201
    outputs:
      token: $response.body#/token
      expiresAt: $response.body#/expires_at
  - stepId: listRunners
    description: >-
      List the repository's currently registered self-hosted runners to confirm
      the existing inventory.
    operationId: listSelfHostedRunnersForRepo
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    - name: owner
      in: path
      value: $inputs.owner
    - name: repo
      in: path
      value: $inputs.repo
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      totalRunners: $response.body#/total_count
      runners: $response.body#/runners
  outputs:
    registrationToken: $steps.createRegistrationToken.outputs.token
    tokenExpiresAt: $steps.createRegistrationToken.outputs.expiresAt
    runners: $steps.listRunners.outputs.runners