services:
  db:
    image: mysql:latest
    environment:
      MYSQL_DATABASE: exemple
      MYSQL_USER: exemple
      MYSQL_PASSWORD: exemple
      MYSQL_ROOT_PASSWORD: root
    ports:
      - 127.0.0.1:3306:3306

  app:
    build: ./app
    depends_on:
      - db
    environment:
      DB_HOST: 127.0.0.1
      DB_USER: exemple
      DB_PASSWORD: exemple
      DB_NAME: exemple
    command: ["./wait-for-it.sh", "127.0.0.1:3306","--","node","index.js"]
    volumes:
      - ./app:/usr/src/app
    ports:
      - 127.0.0.1:3000:3000