added environment variable configuration in Dockerfile

Author: ibex088

.github/workflows/docker-publish.yml

@@ -0,0 +1,123 @@
+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 [ "$status" = "unhealthy" ]; then
+              echo "Database became unhealthy ❌"
+              docker compose logs database
+              exit 1
+            fi
+            sleep 2
+          done
+
+          echo "Waiting a bit for redis..."
+          sleep 5
+
+      - name: Set up QEMU for multi-arch builds
+        uses: docker/setup-qemu-action@v3
+
+      - name: Build Docker image (no push)
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./Dockerfile
+          push: false
+          load: true
+          platforms: linux/amd64
+          tags: chauhansomay/nodejs-api:ci-${{ github.sha }}
+
+      - 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"
+
+          docker run -d --rm \
+            --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} \
+            chauhansomay/nodejs-api:ci-${{ github.sha }}
+
+          echo "Waiting for API container to become ready..."
+          for i in {1..30}; do
+            if curl -sf http://localhost:3000/ > /dev/null 2>&1; then
+              echo "API is ready ✅"
+              break
+            fi
+            echo "Attempt $i/30: API not ready yet, waiting..."
+            if [ $i -eq 30 ]; then
+              echo "Health check failed after 30 attempts ❌, showing logs:"
+              docker logs nodejs-api-test || true
+              docker stop nodejs-api-test || true
+              docker compose logs database redis || true
+              exit 1
+            fi
+            sleep 2
+          done
+
+          echo "Health check passed ✅"
+          docker stop nodejs-api-test
+
+      - name: Build and push multi-arch 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
+
+      - name: Docker compose down
+        if: always()
+        run: |
+          docker compose down

Dockerfile

@@ -5,6 +5,9 @@ WORKDIR /app
 ARG PORT
 ARG DATABASE_URL
 
+ENV PORT=$PORT \
+    DATABASE_URL=$DATABASE_URL
+
 COPY package.json yarn.lock ./
 RUN yarn install --frozen-lockfile
 

docker-compose.yml

@@ -0,0 +1,64 @@
+volumes:
+  database-data:
+  redis-data:
+
+networks:
+  app-network:
+    driver: bridge
+
+services:
+  database:
+    container_name: database
+    image: postgres:latest
+    restart: unless-stopped
+    volumes:
+      - database-data:/var/lib/postgresql
+    environment:
+      POSTGRES_USER: ${POSTGRES_USER:-postgres}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-postgres}
+      POSTGRES_DB: ${POSTGRES_DB:-app}
+    networks:
+      - app-network
+    ports:
+      - "${POSTGRES_PORT:-5432}:5432"
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-postgres}"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+  redis:
+    container_name: redis
+    image: redis:latest
+    restart: unless-stopped
+    volumes:
+      - redis-data:/data
+    networks:
+      - app-network
+    ports:
+      - "${REDIS_PORT:-6379}:6379"
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+  api:
+    container_name: nodejs-api
+    build:
+      context: .
+      dockerfile: Dockerfile
+    restart: unless-stopped
+    networks:
+      - app-network
+    ports:
+      - "${API_PORT:-3000}:3000"
+    environment:
+      NODE_ENV: ${NODE_ENV:-production}
+      DATABASE_URL: postgresql://${POSTGRES_USER:-postgres}:${POSTGRES_PASSWORD:-postgres}@database:5432/${POSTGRES_DB:-app}
+      REDIS_URL: redis://redis:6379
+    depends_on:
+      database:
+        condition: service_healthy
+      redis:
+        condition: service_healthy