gcp-preview.yml

name: Build and Deploy to Cloud Run

on:
  pull_request:
    types: [synchronize, opened, reopened, closed]

env:
  PROJECT: mpppk-workspace
  HOSTNAME: asia.gcr.io
  REGION: asia-northeast1
  SERVICE: preview-${{ github.event.number }}

jobs:
  setup-build-publish-deploy:
    name: Setup, Build, Publish, and Deploy
    if: github.event.action == 'opened' || github.event.action == 'reopened' || github.event.action == 'synchronize'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2

      # Setup gcloud CLI
      - uses: GoogleCloudPlatform/github-actions/setup-gcloud@master
        with:
          version: '274.0.0'
          service_account_key: ${{ secrets.GCP_KEY }}

      # Configure gcloud
      - run: |
          gcloud config set project ${PROJECT}
          gcloud config set run/platform managed
          gcloud config set run/region ${REGION}
          gcloud auth configure-docker

      # Build the Docker image
      - name: Build
        run: |
          docker build -t ${HOSTNAME}/${PROJECT}/${SERVICE} .

      # Publish the Docker image to GCR
      - name: Publish
        run: |
          docker push ${HOSTNAME}/${PROJECT}/${SERVICE}

      # Deploy the Docker image to the Cloud Run
      - name: Deploy
        run: |
          gcloud run deploy ${SERVICE} --image ${HOSTNAME}/${PROJECT}/${SERVICE} --allow-unauthenticated
          PREVIEW_URL=$(gcloud run services describe ${SERVICE} --format 'value(status.url)')
          gcloud run services update ${SERVICE} --set-env-vars BASE_URL=${PREVIEW_URL}

      # Notify to Statuses
      - name: Notify
        run: |
          PREVIEW_URL=$(gcloud run services describe ${SERVICE} --format 'value(status.url)')
          curl -X POST \
            --url ${{ github.event.pull_request._links.statuses.href }} \
            -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" \
            -H "Content-Type: application/json" \
            -d "{
              \"state\": \"success\",
              \"target_url\": \"${PREVIEW_URL}\",
              \"description\": \"Deploy preview ready!\",
              \"context\": \"deploy/preview\"
            }"

  cleanup-preview:
    name: Cleanup the Preview
    if: github.event.action == 'closed'
    runs-on: ubuntu-latest
    steps:
      # Setup gcloud CLI
      - uses: GoogleCloudPlatform/github-actions/setup-gcloud@master
        with:
          version: '274.0.0'
          service_account_key: ${{ secrets.GCP_KEY }}

      # Configure gcloud
      - run: |
          gcloud config set project ${PROJECT}
          gcloud config set run/platform managed
          gcloud config set run/region ${REGION}
          gcloud auth configure-docker

      - name: Delete the Cloud Run Service
        run: gcloud --quiet run services delete ${SERVICE}

      - name: Delete the Docker image in GCR
        run: gcloud container images delete ${HOSTNAME}/${PROJECT}/${SERVICE}