services:
  db:
    image: mysql:latest
    environment:
      MYSQL_DATABASE: exemple
      MYSQL_USER: exemple
      MYSQL_PASSWORD: exemple
      MYSQL_ROOT_PASSWORD: root
    ports:
      - 3306:3306

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