app:
  env_file: .env
  build: .
  entrypoint: bundle exec
  command: rails server -p 3000
  volumes:
    - .:/app
  ports:
    - "3000"
  links:
    - postgres
postgres:
  env_file: .env
  image: postgres:9.4
  ports:
    - "5432"
nginx:
  image: nginx
  links:
    - app
  volumes_from:
    - app
  volumes:
    - ./nginx.conf:/etc/nginx/conf.d/my_app.conf:ro
  ports:
    - "80:80"