docker-compose.yaml

# ME_CONFIG_MONGODB_URL     : mongodb://root:example@mongo:27017/books-collection  # use database service name in place of mongo


version: '3.9'
services:
  mongo:
    image: mongo:7.0-jammy
    container_name: mongo
    environment:
      MONGO_INITDB_ROOT_USERNAME: root
      MONGO_INITDB_ROOT_PASSWORD: example    
    ports:
      - "27017:27017"
    volumes:
      - mongo-data:/data/db

  mongo-express:
    image: mongo-express
    container_name: mongo-express
    restart: always
    ports:
      - 8081:8081
    environment:
      ME_CONFIG_MONGODB_ADMINUSERNAME: root
      ME_CONFIG_MONGODB_ADMINPASSWORD: example
      ME_CONFIG_MONGODB_URL: mongodb://root:example@mongo:27017/
    depends_on:
      - mongo  

  # Node.js (Express) service
  express-app:
    build:
      context: ./backend   
    container_name: backend
    ports:
      - "5555:5555"
    depends_on:
      - mongo
      - mongo-express
#    environment:
#      MONGO_URI: mongodb://root:example@mongo.default.svc.cluster.local:27017/books-collection?authSource=admin

  # Frontend service
  react-app:
    build:
      context: ./frontend 
    container_name: frontend
    ports:
      - "80:80"
    depends_on:
      - express-app

volumes:
  mongo-data: