_deployment.yml

name: Reusable Deployment

on:
  workflow_call:
    inputs:
      environment:
        type: string
        required: true
        description: Name of the target environment.
      ref:
        type: string
        required: true
        description: The tag or SHA to checkout.

jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      
      - name: Google Auth
        id: auth
        uses: '
        with:
          token_format: 'access_token'
          workload_identity_provider: '${{ secrets.WIF_PROVIDER }}'
          service_account: '${{ secrets.WIF_SERVICE_ACCOUNT }}'

      - name: Log ingo Google Artifact Registry
        id: docker-auth
        uses: docker/login-action@v3
        with:
          username: 'oauth2accesstoken'
          password: '${{ steps.auth.outputs.access_token }}'
          registry: '${{ vars.REGION }}-docker.pkg.dev'

      - name: Build, tag and push container
        id: build-image
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          tags: |
            ${{ vars.REGION }}-docker.pkg.dev/${{ vars.GCP_PROJECT_ID }}/${{ vars.ARTIFACT_REPO }}/${{ vars.SERVICE_NAME }}:latest
      
      - name: Create Service declaration   
        run: |-
          export CONTAINER_IMAGE="${{ vars.REGION }}-docker.pkg.dev/${{ vars.GCP_PROJECT_ID }}/${{ vars.ARTIFACT_REPO }}/${{ vars.SERVICE_NAME }}:latest"
          export SERVICE_NAME="${{ vars.SERVICE_NAME }}"
          export PROJECT_ID="${{ vars.GCP_PROJECT_ID }}"
          export REVISION_TAG="${{ inputs.ref }}"
          export CLOUD_RUN_SA="${{ vars.CLOUD_RUN_SA }}"
          export ENVIRONMENT="${{ inputs.environment }}"
          envsubst < ./service-yaml/container.yaml > container-${{ inputs.environment }}.yaml
          cat container-${{ inputs.environment }}.yaml

      - name: Deploy to Cloud Run
        id: deploy
        uses: google-github-actions/deploy-cloudrun@v2
        with:
          service: ${{ vars.SERVICE_NAME }}
          region: ${{ vars.REGION }}
          metadata: container-${{ inputs.environment }}.yaml