postgres:
  image: postgres:9.6-alpine
  ports:
   - '5432:5432'
  environment:
    POSTGRES_USER: "user"
    POSTGRES_PASSWORD: ""
    POSTGRES_DB: "golang"
  volumes:
    - ./init:/docker-entrypoint-initdb.d/

    ## docker exec -it 489ca38d537beac6b457c9c2ce86a606d11eaa41c3594d13d676cc42e35346bf psql -U postgres