nginx:
    build: .
    ports:
        - 80:80
    links:
        - php
    volumes:
        - ./code:/var/www/html
php:
    image: php:7.0-fpm
    links:
      - pgsql
    expose:
        - 9000
    volumes:
        - ./code:/var/www/html
    environment:
      PG_HOST: pgsql

      PG_DBNAME: app_db
      PG_USER: app_user
      PG_PASSWORD: *****

pgsql:
  image: postgres
  volumes:
    - /var/lib/postgresql/data
  environment:
    POSTGRES_USER: app_db
    POSTGRES_DB: app_user
    POSTGRES_PASSWORD: *****