delete-deployment.yml

name: Delete Cloud Run instances on PR closed by merged

on:
  pull_request:
    branches:
      - main
    types: [closed]

jobs:
  delete-cloud-run:
    if: github.event.pull_request.merged == true
    runs-on: ubuntu-latest
    steps:
      - name: Inject slug/short variables
        uses: rlespinasse/github-slug-action@v4.5.0

      - id: 'auth'
        name: 'Authenticate to Google Cloud'
        uses: 'google-github-actions/auth@v2'
        with:
          credentials_json: '${{ secrets.GAR_JSON_KEY }}'

      - name: 'Set up Cloud SDK'
        uses: 'google-github-actions/setup-gcloud@v2'

      - name: 'Display information about the current gcloud environment'
        run: 'gcloud info'

      - name: Check if Cloud Run service exists
        id: check_service
        run: |
          SERVICE_NAME=${{ env.GITHUB_REPOSITORY_NAME_PART_SLUG }}-${{ env.GITHUB_HEAD_REF_SLUG || env.GITHUB_REF_SLUG }}
          if gcloud run services describe $SERVICE_NAME --region=${{ vars.GCP_REGION }} > /dev/null 2>&1; then
            echo "service_exists=true" >> $GITHUB_ENV
          else
            echo "service_exists=false" >> $GITHUB_ENV
          fi

      - name: 'Delete service'
        if: env.service_exists == 'true'
        run: gcloud run services delete ${{ env.GITHUB_REPOSITORY_NAME_PART_SLUG }}-${{ env.GITHUB_HEAD_REF_SLUG || env.GITHUB_REF_SLUG }} --region=${{ vars.GCP_REGION }} --quiet