version: "3.8"

services:
  db:
    image: postgres:latest
    ports:
      - 5432:5432
    environment:
      POSTGRES_PASSWORD: postgres
      POSTGRES_USER: postgres
  service1:
    depends_on:
      - db
    build: .
  service2:
    depends_on:
      - db
    build: .
  service3:
    depends_on:
      - db
    build: .