services:
  db:
    image: postgres:16
    environment:
      - POSTGRES_DB=web
      - POSTGRES_USER=user
      - POSTGRES_PASSWORD=pass
      - TZ=Asia/Tokyo
      - PGTZ=Asia/Tokyo
    ports:
      - 5432:5432
    volumes:
      - resident_postgresql_data:/var/lib/postgresql/data

volumes:
  resident_postgresql_data: