version: '3'
services:
  postgres:
    restart: always
    image: postgres:10
    environment:
      - POSTGRES_USER=${DB_USER_NAME}
      - POSTGRES_PASSWORD=${DB_PASSWORD}
      - POSTGRES_DB=${DB_NAME}
    volumes:
      - ./postgres-data/postgres:/var/lib/postgresql/data
    ports:
      - "${DB_PORT}:5432"
    networks:
      - db_nw
  app:
    restart: always
    build: .
    ports:
      - 5000:5000
    links:
      - postgres
    networks:
      - db_nw
      - web_nw
    depends_on:
      - postgres
    volumes:
      - .:/app
    entrypoint: ["python", "app.py"]
networks:
  db_nw:
    driver: bridge
  web_nw:
      driver: bridge