如何为docker中的应用配置倍数ips

Question

我有一个简单的java applet，它具有在套接字服务器（ServerSocket）和套接字客户端之间进行通信的功能，我试图旋转docker。当我用docker-compose.yml给docker-compose up命令时，无法通过客户端套接字找到服务器。如何通过docker-compose指定每台机器的IP？

version: '2'

services:
  server:
    image: busybox
    networks:
      my_net:
        ipv4_address: 172.16.238.10
  app:
    image: busybox
    networks:
      my_net:
        ipv4_address: 172.16.238.11

networks:
  my_net:
    driver: bridge
    ipam:
      driver: default
      config:
      - subnet: 172.16.238.0/24
        gateway: 172.16.238.1
      - subnet: 2001:3984:3989::/64
        gateway: 2001:3984:3989::1