How to skip job in gitlab-ci.yml base on different runner?

Question

I am using the gitlab as my CI/CD system. And I need setup my own runner. I have two runner both 'windows' with 'powershell' and 'macos' with 'shell'. I want either of them can run my build job. The 'macos' is a laptop so it not always online. So I write two version of build jobs, and hope just execute one of them for different runner.

When I use the runner tags, both of the job will execute. And the build will execute twice. If my 'macos' is offline, the build-mac will stuck.

build-win:
  stage: build
  tags:
    - windows
  script: powershell command...

build-mac:
  stage: build
  tags:
    - macos
  script: shell command...

So I think I need 'skip' the job but not select a runner. So I am trying to use only or rules to skip the job. I find the linkage: https://gitlab.com/gitlab-org/gitlab/-/issues/21860 But as the issues said, the CI_RUNNER_EXECUTABLE_ARCH can not use in only, except and rules.

build-win:
  stage: build
  script: powershell command...
  rules:
    - if: $CI_RUNNER_EXECUTABLE_ARCH =~ /^windows.*/

build-mac:
  stage: build
  script: shell command...
  rules:
    - if: $CI_RUNNER_EXECUTABLE_ARCH =~ /^(darwin|linux).*/

I think both of the solution is not suitable. Is there any better way to do this? Thank you~

Answer 1

Not seeing any options in predefined variables for anything like runner online status.

If you want to base a run rule by runner status, you will probably have to leverage a personal token (or maybe a project token) to hit the runners api for status. You could do something like this:

stages:
  - check-runner
  - run

image: python

check runner:
  stage: check-runner
  script:
    - curl --header "PRIVATE-TOKEN:$READ_RUNNERS_TOKEN" "$CI_API_V4_URL/runners?tag_list=unreliable"
    - |
      echo RUNNER_STATUS=$(\
      curl --header "PRIVATE-TOKEN:$READ_RUNNERS_TOKEN" "$CI_API_V4_URL/runners?tag_list=macos" \
      | python -c "import sys, json; print(json.load(sys.stdin)[0]['status'])" \
      ) >> .env
  artifacts:
    reports:
      dotenv: .env

use tagged runner:
  stage: run
  script:
    - echo $RUNNER_STATUS
  dependencies:
    - check runner
  rules:
    - if: '$RUNNER_STATUS == "online"'
  tags:
    - macos

user other runner:
  stage: run
  script:
    - echo "used runner"
  dependencies:
    - check runner
  rules:
    - if: '$RUNNER_STATUS != "online"'
  tags:
    - windows