version: "3"

services:
  db:
    image: postgres:11.1-alpine
    environment:
      POSTGRES_USER: lucky
      POSTGRES_PASSWORD: developer
    volumes:
      - db:/var/lib/postgresql
    networks:
      - internal
    ports:
      - 5432

  app:
    build:
      context: .
      dockerfile: Dockerfile
    environment:
      SHARDS_CACHE_PATH: /data/.shards
      DB_HOST: db
      DB_USERNAME: lucky
      DB_PASSWORD: developer
    volumes:
      - .:/data
    command: sleep infinity
    depends_on:
      - db
    networks:
      - internal

volumes:
  db:

networks:
  internal: