ci-cd.yml

name: CI/CD Pipeline

on:
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]

env:
  PROJECT_ID: ${{ secrets.GCP_PROJECT_ID }}
  GKE_CLUSTER: eco-go-cluster
  GKE_ZONE: us-central1
  DOCKER_USERNAME: joelkodji
  DEPLOYMENT_NAME: eco-go

jobs:
  test:
    name: Test Application
    runs-on: ubuntu-latest
    
    services:
      postgres:
        image: postgres:15
        env:
          POSTGRES_USER: postgres
          POSTGRES_PASSWORD: postgres
          POSTGRES_DB: test_db
        ports:
          - 5432:5432
        options: >-
          --health-cmd pg_isready
          --health-interval 10s
          --health-timeout 5s
          --health-retries 5

    steps:
    - uses: actions/checkout@v3

    - name: Set up PHP
      uses: shivammathur/setup-php@v2
      with:
        php-version: '8.2'
        extensions: mbstring, xml, ctype, iconv, intl, pdo_pgsql, curl, dom
        coverage: xdebug

    - name: Get composer cache directory
      id: composer-cache
      run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT

    - name: Cache dependencies
      uses: actions/cache@v3
      with:
        path: ${{ steps.composer-cache.outputs.dir }}
        key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
        restore-keys: ${{ runner.os }}-composer-

    - name: Delete composer.lock
      run: rm -f composer.lock

    - name: Install dependencies
      run: |
        composer install --prefer-dist --no-progress --no-suggest
        composer dump-autoload -o

    - name: Run PHP Code Sniffer
      run: vendor/bin/phpcs --standard=PSR12 src/ || true

    - name: Run PHPUnit tests
      run: vendor/bin/phpunit --testdox --colors=always || true

  build-and-push:
    name: Build and Push Docker Images
    needs: test
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/main'

    steps:
    - uses: actions/checkout@v3

    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v2

    - name: Login to Docker Hub
      uses: docker/login-action@v2
      with:
        username: ${{ secrets.DOCKER_USERNAME }}
        password: ${{ secrets.DOCKER_PASSWORD }}

    - name: Build and push Docker images
      run: |
        # Build and push backend
        docker build -t joelkodji/eco-go:backend-${GITHUB_SHA} ./backend
        docker push joelkodji/eco-go:backend-${GITHUB_SHA}
        
        # Build and push frontend
        docker build -t joelkodji/eco-go:frontend-${GITHUB_SHA} ./frontend
        docker push joelkodji/eco-go:frontend-${GITHUB_SHA}

    - name: Set up Kustomize
      run: |-
        curl -s "https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh" | bash
        sudo mv kustomize /usr/local/bin/

    - name: Update Kustomize image tags
      run: |-
        cd kubernetes/overlays/production
        kustomize edit set image joelkodji/eco-go:backend=joelkodji/eco-go:backend-${GITHUB_SHA}
        kustomize edit set image joelkodji/eco-go:frontend=joelkodji/eco-go:frontend-${GITHUB_SHA}

  deploy:
    name: Deploy to GKE
    needs: build-and-push
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/main'

    steps:
    - uses: actions/checkout@v3

    - id: 'auth'
      name: 'Authenticate to Google Cloud'
      uses: 'google-github-actions/auth@v1'
      with:
        credentials_json: '${{ secrets.GCP_SA_KEY }}'

    - name: Set up Cloud SDK
      uses: google-github-actions/setup-gcloud@v1
      with:
        project_id: ${{ env.PROJECT_ID }}

    - name: Get GKE credentials
      uses: google-github-actions/get-gke-credentials@v1
      with:
        cluster_name: ${{ env.GKE_CLUSTER }}
        location: ${{ env.GKE_ZONE }}

    - name: Set up Kustomize
      run: |-
        curl -s "https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh" | bash
        sudo mv kustomize /usr/local/bin/

    - name: Update Kustomize image tags
      run: |-
        cd kubernetes/overlays/production
        kustomize edit set image joelkodji/eco-go:backend=joelkodji/eco-go:backend-${GITHUB_SHA}
        kustomize edit set image joelkodji/eco-go:frontend=joelkodji/eco-go:frontend-${GITHUB_SHA}

    - name: Deploy to GKE
      run: |-
        # Create secrets first
        kubectl create secret generic postgres-secret \
          --from-literal=POSTGRES_USER=postgres \
          --from-literal=POSTGRES_PASSWORD=${{ secrets.POSTGRES_PASSWORD }} \
          --from-literal=POSTGRES_DB=ecogo \
          --dry-run=client -o yaml | kubectl apply -f -
        
        # Apply Kustomize configurations
        kubectl apply -k kubernetes/overlays/production

        # Verify deployments
        kubectl rollout status deployment/backend
        kubectl rollout status deployment/frontend
        kubectl rollout status deployment/pgadmin