docker-publish.yml

name: Build, test and push Docker image

on:
  push:
    branches:
      - master 

jobs:
  build-test-push:
    runs-on: ubuntu-latest

    env:
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
      POSTGRES_DB: app
      POSTGRES_PORT: 5432
      REDIS_PORT: 6379
      API_PORT: 3000

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Log in to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Start database and redis
        run: |
          docker compose up -d database redis

          echo "Waiting for database to become healthy..."
          for i in {1..30}; do
            status=$(docker inspect --format='{{.State.Health.Status}}' database || echo "unknown")
            echo "database health: $status"
            if [ "$status" = "healthy" ]; then
              echo "Database is healthy ✅"
              break
            fi
            if [ "$status" = "unhealthy" ]; then
              echo "Database became unhealthy ❌"
              docker compose logs database
              exit 1
            fi
            sleep 2
          done

          echo "Waiting a bit for redis..."
          sleep 5

      - name: Build Docker image (no push)
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./Dockerfile
          push: false
          load: true
          platforms: linux/amd64
          tags: chauhansomay/nodejs-api:ci-${{ github.sha }}
          cache-from: type=gha
          cache-to: type=gha,mode=max

      - name: Run API container for smoke test
        run: |
          # Dynamically detect the Docker Compose network
          NETWORK_NAME=$(docker network ls --filter "name=app-network" --format "{{.Name}}" | head -n 1)
          
          if [ -z "$NETWORK_NAME" ]; then
            echo "Could not find app-network, listing available networks:"
            docker network ls
            exit 1
          fi

          echo "Using Docker network: $NETWORK_NAME"

          # Run container with Docker health check - no arbitrary timeouts
          docker run -d \
            --name nodejs-api-test \
            --network $NETWORK_NAME \
            -p 3000:3000 \
            -e NODE_ENV=production \
            -e DATABASE_URL=postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@database:${POSTGRES_PORT}/${POSTGRES_DB} \
            -e REDIS_URL=redis://redis:${REDIS_PORT} \
            --health-cmd="wget -qO- http://localhost:3000/health || exit 1" \
            --health-interval=5s \
            --health-timeout=3s \
            --health-retries=60 \
            --health-start-period=10s \
            chauhansomay/nodejs-api:ci-${{ github.sha }}

          echo "Waiting for API container to become healthy..."
          while true; do
            status=$(docker inspect --format='{{.State.Health.Status}}' nodejs-api-test 2>/dev/null || echo "unknown")
            echo "API health: $status"
            
            if [ "$status" = "healthy" ]; then
              echo "API is healthy ✅"
              break
            fi
            
            if [ "$status" = "unhealthy" ]; then
              echo "API became unhealthy ❌, showing logs:"
              docker logs nodejs-api-test || true
              docker stop nodejs-api-test || true
              docker compose logs database redis || true
              exit 1
            fi
            
            # Check if container exited unexpectedly
            if ! docker ps -q -f name=nodejs-api-test | grep -q .; then
              echo "API container exited unexpectedly ❌"
              docker logs nodejs-api-test || true
              exit 1
            fi
            
            sleep 3
          done

          echo "Smoke test passed ✅"
          docker stop nodejs-api-test

      - name: Push image to Docker Hub
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./Dockerfile
          push: true
          platforms: linux/amd64,linux/arm64
          tags: chauhansomay/nodejs-api:latest
          cache-from: type=gha

      - name: Docker compose down
        if: always()
        run: |
          docker compose down