deploy.yml

name: Gofr-web workflow

on:
  push:
    paths:
      - 'docs/**'
    branches:
      - add-docs

env:
  GCR_PROJECT: zs-products
  APP_NAME: gofr-web
  CLUSTER_NAME: products-cluster
  STAGE_NAMESPACE: gofr-stage
  PROD_NAMESPACE: gofr

jobs:
  stage_build:
    runs-on: ubuntu-latest
    if: (github.ref == 'refs/heads/add-docs') && (github.event_name == 'push')
    outputs:
      image: ${{ steps.output-image.outputs.image }}
    strategy:
      matrix:
        node-version: [ 16.x ]
    steps:
      - uses: actions/checkout@v4

      - name: Log in to the Container registry
        uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Pull Website Package
        run: |
          docker pull ghcr.io/gofr-dev/website:workflow-package

      - name: Login to GCR
        uses: docker/login-action@v1
        with:
          registry: gcr.io
          username: _json_key
          password: ${{ secrets.GCR_KEY }}

      - name: building docker image
        uses: docker/build-push-action@v2
        with:
          tags: gcr.io/${{ env.GCR_PROJECT }}/${{ env.APP_NAME }}:${{ github.sha }}
          context: ./
          file: ./docs/Dockerfile
          push: true
      - id: output-image
        run: echo "image=`echo gcr.io/${{ env.GCR_PROJECT }}/${{ env.APP_NAME }}:${{ github.sha }}`" >> "$GITHUB_OUTPUT"

  stage_deployment:
    runs-on: ubuntu-latest
    needs: stage_build
    env:
      image: ${{ needs.stage_build.outputs.image }}
    steps:
      - name: Set up Cloud SDK
        uses: google-github-actions/setup-gcloud@v0
        with:
          project_id: ${{ env.GCR_PROJECT }}
          service_account_key: ${{ secrets.DEPLOY_KEY }}
          export_default_credentials: true

#      - name: Update Kubectl component
#        run: gcloud --quiet components update kubectl
#
#      - name: Set GCloud Project and Fetch Cluster Credentials
#        run: gcloud container clusters get-credentials ${{ env.CLUSTER_NAME }} --zone=us-central1 --project=${{ env.GCR_PROJECT }}
#
#      - name: Set Deployment Image
#        run: kubectl set image deployment/${{ env.APP_NAME }} ${{ env.APP_NAME }}=${{ env.image }} --namespace ${{ env.STAGE_NAMESPACE }}

  check-tag:
    runs-on: ubuntu-latest
    if: startsWith(github.ref, 'refs/tags/v')
    outputs:
      tag_exists: ${{ steps.tag-check.outputs.tag_exists }}

    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Set up Cloud SDK
        uses: google-github-actions/setup-gcloud@v0
        with:
          project_id: ${{ env.GCR_PROJECT }}
          service_account_key: ${{ secrets.DEPLOY_KEY }}
          export_default_credentials: true

      - name: Check if tag exists
        id: tag-check
        run: |
          if gcloud container images describe gcr.io/${{ env.GCR_PROJECT }}/${{ env.APP_NAME }}:${{ github.sha }} 2>/dev/null; then
              echo "tag_exists=true" >> "$GITHUB_OUTPUT"
          else
              echo "tag_exists=false" >> "$GITHUB_OUTPUT"
          fi

      - name: Print commit has value
        run: |
          echo "${{ github.sha }}"

      - name: Print tag_exists value
        run: |
          echo "${{ steps.tag-check.outputs.tag_exists }}"

  retag:
    name: Retagging existing image
    runs-on: ubuntu-latest
    needs: check-tag
    if: ${{ needs.check-tag.outputs.tag_exists == 'true' }}
    outputs:
      image: ${{ steps.output-image.outputs.image }}
    steps:
      - name: Extract Release Tag
        run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV

      - name: Re tag and Push Docker Image to GCR
        run: |
          docker pull gcr.io/${{ env.GCR_PROJECT }}/${{ env.APP_NAME }}:${{ github.sha }}
          docker tag gcr.io/${{ env.GCR_PROJECT }}/${{ env.APP_NAME }}:${{ github.sha }} gcr.io/${{ env.GCR_PROJECT }}/${{ env.APP_NAME }}:${{ env.RELEASE_VERSION }}
          docker push gcr.io/${{ env.GCR_PROJECT }}/${{ env.APP_NAME }}:${{ env.RELEASE_VERSION }}

      - id: output-image
        run: echo "image=`echo gcr.io/${{ env.GCR_PROJECT }}/${{ env.APP_NAME }}:${{ env.RELEASE_VERSION }}`" >> "$GITHUB_OUTPUT"

  prod_deployment:
    runs-on: ubuntu-latest
    name: 🚀 Deploy to Prod
    needs: retag
    env:
      image: ${{ needs.retag.outputs.image }}

    steps:
      - name: Extract Release Tag
        run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV

      - name: Set up Cloud SDK
        uses: google-github-actions/setup-gcloud@v0
        with:
          project_id: ${{ env.GCR_PROJECT }}
          service_account_key: ${{ secrets.DEPLOY_KEY }}
          export_default_credentials: true

      - name: Update Kubectl component
        run: gcloud --quiet components update kubectl

      - name: Set GCloud Project and Fetch Cluster Credentials
        run: gcloud container clusters get-credentials ${{ env.CLUSTER_NAME }} --zone=us-central1 --project=${{ env.GCR_PROJECT }}

      - name: Set Deployment Image for API
        run: kubectl set image deployment/${{ env.APP_NAME }} ${{ env.APP_NAME }}=${{ env.image }} --namespace ${{ env.PROD_NAMESPACE }}