backend-ci-test.yml

# This workflow build and push a Docker container to Google Artifact Registry and deploy it on Cloud Run when a commit is pushed to the "master" branch
#
# Overview:
#
# 1. Authenticate to Google Cloud
# 2. Authenticate Docker to Artifact Registry
# 3. Build a docker container
# 4. Publish it to Google Artifact Registry
# 5. Deploy it to Cloud Run
#
# To configure this workflow:
#
# 1. Ensure the required Google Cloud APIs are enabled:
#
#    Cloud Run            run.googleapis.com
#    Artifact Registry    artifactregistry.googleapis.com
#
# 2. Create and configure Workload Identity Federation for GitHub (https://github.com/google-github-actions/auth#setting-up-workload-identity-federation)
#
# 3. Ensure the required IAM permissions are granted
#
#    Cloud Run
#      roles/run.admin
#      roles/iam.serviceAccountUser     (to act as the Cloud Run runtime service account)
#
#    Artifact Registry
#      roles/artifactregistry.admin     (project or repository level)
#
#    NOTE: You should always follow the principle of least privilege when assigning IAM roles
#
# 4. Create GitHub secrets for WIF_PROVIDER and WIF_SERVICE_ACCOUNT
#
# 5. Change the values for the GAR_LOCATION, SERVICE and REGION environment variables (below).
#
# NOTE: To use Google Container Registry instead, replace ${{ env.GAR_LOCATION }}-docker.pkg.dev with gcr.io
#
# For more support on how to run this workflow, please visit https://github.com/marketplace/actions/deploy-to-cloud-run
#
# Further reading:
#   Cloud Run IAM permissions                 - https://cloud.google.com/run/docs/deploying
#   Artifact Registry IAM permissions         - https://cloud.google.com/artifact-registry/docs/access-control#roles
#   Container Registry vs Artifact Registry   - https://cloud.google.com/blog/products/application-development/understanding-artifact-registry-vs-container-registry
#   Principle of least privilege              - https://cloud.google.com/blog/products/identity-security/dont-get-pwned-practicing-the-principle-of-least-privilege

name: Deploy GCP Cloud Run to Dev Server

on:
  pull_request:
    branches: [ main ]

env:
  PROJECT_ID: ${{secrets.PROJECT_ID}}
  SERVICE: ${{secrets.SERVICE}}
  REGION: ${{secrets.REGION}}
  ARTIFACT_REGISTRY: ${{secrets.ARTIFACT_REGISTRY}}

defaults:
  run:
    working-directory: backend

jobs:
  deploy:
    # Add 'id-token' with the intended permissions for workload identity federation
    permissions:
      contents: 'read'
      id-token: 'write'

    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          submodules: recursive
          token: ${{ secrets.ACTION_TOKEN }}

      - name: Google Auth
        id: auth
        uses: 'google-github-actions/auth@v2'
        with:
          token_format: 'access_token'
          workload_identity_provider: '${{ secrets.WIF_PROVIDER }}' # e.g. - projects/123456789/locations/global/workloadIdentityPools/my-pool/providers/my-provider
          service_account: '${{ secrets.WIF_SERVICE_ACCOUNT }}' # e.g. - my-service-account@my-project.iam.gserviceaccount.com
          project_id: '${{env.PROJECT_ID}}'


      - uses: actions/setup-java@v4
        with:
          distribution: 'temurin'
          java-version: 21

      # BEGIN - Docker auth and build (NOTE: If you already have a container image, these Docker steps can be omitted)

      # Authenticate Docker to Google Cloud Artifact Registry
      # Authenticate JIB to Google Cloud Run
      - name: Build and Push Container using Jib
        env:
          GOOGLE_AR_CLIENT_SECRET: ${{ secrets.GOOGLE_AR_CLIENT_SECRET }}
          SPRING_PROFILES_ACTIVE: dev
        run: ./gradlew jib
      # END - Docker auth and build

      - name: Deploy to Cloud Run
        id: deploy
        uses: google-github-actions/deploy-cloudrun@v2
        with:
          service: ${{ env.SERVICE }}
          region: ${{ env.REGION }}
          # NOTE: If using a pre-built image, update the image name here
          image: ${{ env.REGION }}-docker.pkg.dev/${{ env.PROJECT_ID }}/${{ env.ARTIFACT_REGISTRY }}/${{ env.SERVICE }}:latest

      # If required, use the Cloud Run url output in later steps
      - name: Show Output
        run: echo ${{ steps.deploy.outputs.url }}