services:
  db:
    image: mysql:5.7
    environment:
      MYSQL_DATABASE: exemple
      MYSQL_USER: exemple
      MYSQL_PASSWORD: exemple
      MYSQL_ROOT_PASSWORD: root
    ports:
      - 3306:3306
    volumes:
      - ./app/database:/var/lib/mysql

  app:
    build: ./app
    depends_on:
      - db
    environment:
      DB_HOST: db
      DB_USER: exemple
      DB_PASSWORD: exemple
      DB_NAME: exemple
    command: ["./wait-for-it.sh", "db:3306", "--timeout=30","--", "node", "index.js"]
    volumes:
      - ./app:/usr/src/app
    ports:
      - 3000:3000