docker-compose.yml

version: '3.1'

services:
  mongo:
    container_name: mongo
    image: mongo:4.0.10
    restart: always
    ports:
      - "27017:27017"
    environment:
      MONGO_INITDB_ROOT_USERNAME: root
      MONGO_INITDB_ROOT_PASSWORD: toor
      MONGO_INITDB_DATABASE: lottoWebDataBase
    volumes:
      - ./init-mongo.js:/docker-entrypoint-initdb.d/init-mongo.js:ro

  mongo-express:
    image: mongo-express
    restart: always  #restart the container regardless of the exit status
    ports:
      - "8081:8081"  # port forwarding
    depends_on:
      - mongo
    environment:
      ME_CONFIG_MONGODB_ADMINUSERNAME: root
      ME_CONFIG_MONGODB_ADMINPASSWORD: toor
      ME_CONFIG_MONGODB_URL: mongodb://root:toor@mongo:27017/  # mongodb://{mongo-image-username}:{mongo-image-password}@{mongo-image-name}:{port}

  lotto:
    container_name: lotto
    build: .
    restart: always
    ports:
      - "8000:8000"
    depends_on:
      - mongo
    environment:
      MONGO_USER: lottoWebUser
      MONGO_PASSWORD: lottoWebPassword
      MONGO_HOST: mongo
      MONGO_PORT: 27017
      MONGO_DB_NAME: lottoWebDataBase
      MONGO_AUTH_SOURCE: admin