name: Runner Canary

on:
  push:
  workflow_dispatch:

jobs:
  runner-canary:
    runs-on: ubuntu-22.04
    steps:
      - name: Verify isolated job runtime
        run: |
          set -eu
          uname -a
          test -f /etc/os-release
          cat /etc/os-release
          echo "runner-canary-ok"