docker.yaml

name: Build and Push Docker Image

on:
  push:
    branches:
      - app

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      # Step 1: Checkout the latest code from the repo
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      # Step 2: Install jq to parse package.json
      - name: Install jq
        run: sudo apt-get install -y jq

      # Step 3: Set up Docker in the workflow
      - name: Set up Docker
        uses: docker/setup-buildx-action@v3

      # Step 4: Log in to Docker Hub using secrets
      - name: Log in to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKER_USER }}
          password: ${{ secrets.DOCKER_PASS }}

      # Step 5: Extract version from package.json
      - name: Extract version from package.json
        id: get_version
        run: |
          VERSION=$(cat app/package.json | jq -r .version)
          echo "VERSION=$VERSION"
          echo "::set-output name=version::$VERSION"

      # Step 6: Build Docker image with version tag
      - name: Build Docker image
        run: |
          docker build -t ${{ secrets.DOCKER_USER }}/gitops-app:${{ steps.get_version.outputs.version }} app/.

      # Step 7: Push Docker image to Docker Hub
      - name: Push Docker image
        run: |
          docker push ${{ secrets.DOCKER_USER }}/gitops-app:${{ steps.get_version.outputs.version }}

      # Step 8: Merge app branch into main if build succeeds
      - name: Merge app branch into main
        if: success() # Only run this step if all previous steps succeeded
        run: |
          git config --global user.email "github-actions[bot]@users.noreply.github.com"
          git config --global user.name "GitHub Actions"
          git fetch origin 
          git checkout main
          git merge --no-ff app
          git push origin main
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}