sub_clean-and-delete-runner.yaml

# This workflow is a reusable one called by other workflows
name: (template) Clean and delete GitHub Actions runner on GCP

on:
  workflow_call:
    # Variables to set when calling this reusable workflow
    inputs:
      runner_hostname:
        required: true
        type: string
      zone:
        required: true
        type: string

    # Secrets to set when calling this reusable workflow
    secrets:
      credentials:
        required: true

jobs:
  clean-delete:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Authenticate to GCP
        uses: google-github-actions/auth@v2
        with:
          credentials_json: ${{ secrets.credentials }}

      - name: Setup gcloud
        uses: google-github-actions/setup-gcloud@v2

      - name: Delete runner
        run: |
          # Disable failure on first error, needed for the "delete" check
          set +e

          # If runner is already deleted we can bypass the error
          if ! LOGS=$(gcloud --quiet compute instances delete ${{ inputs.runner_hostname }} \
                             --delete-disks all \
                             --zone ${{ inputs.zone }} 2>&1); then
            echo "${LOGS}" | grep -q "resource .* was not found" || RC=1
            # Show logs in case of error
            (( RC )) && echo "${LOGS}" || true
          fi

          # Force exit with the *real* error code
          exit ${RC:-0}