elixir docker

docker-compose.yml

version: '2'

services:
  db:
    image: mariadb
    restart: always
    volumes:
      - ./docker/data/mysql:/var/lib/mysql
    ports:
      - "3306:3306"
    environment:
      MYSQL_DATABASE: "foobar"
      MYSQL_USER: "docker"
      MYSQL_PASSWORD: "docker"
      MYSQL_ROOT_PASSWORD: "root"
  app:
    image: 127labs/phoenix
    command: [mix, phoenix.server]
    depends_on:
      - db
    volumes:
      - .:/srv
    links:
      - db
    ports:
      - 4000:4000
    environment:
      MIX_ENV: dev