version: '3'

services:
  app:
    image: ruby:2.2.7
    volumes:
      - .:/app
    ports:
      - "3000:3000"
    depends_on:
      - mysql

  mysql:
    image: mysql:5.6
    environment:
      - MYSQL_ROOT_PASSWORD=root
      - MYSQL_DATABASE=development_db
      - MYSQL_USER=mysql
      - MYSQL_PASSWORD=mysql
    ports:
      - "3306:3306"
    volumes:
      - /var/lib/mysql