docker compose自定义网络实现固定容器ip地址

由于默认的bridge桥接网络，重启容器后会改变ip地址。在一些场景下我们希望固定容器IP地址。
docker-compose是docker的一个编排工具，相对于命令模式创建网络，容器等。使用配置文件相对来说更方便，可追溯问题。

直接粘贴docker-compose.yml文件

version: '2'
services:
  Nginx:
   image: Nginx:1.13.12
   container_name: Nginx
   restart: always
   tty: true
   networks:
     extnetwork:
      ipv4_address: 172.19.0.2
 
networks:
  extnetwork:
   ipam:
     config:
     - subnet: 172.19.0.0/16
      gateway: 172.19.0.1

说明：

• gateway是网关地址
• subnet是网络号段
• extnetwork是自定义的网络名称

上面配置中我们的Nginx容器固定ip为172.19.0.2

示例，自定义网络模式：

version: '2'
services:
  Nginx:
   image: Nginx:1.13.12
   container_name: Nginx
   restart: always
   networks:
     extnetwork:
   ports:
     - 80:80
   volumes:
     - '/Nginx/conf.d:/etc/Nginx/conf.d'
  Nginx2:
   image: Nginx:1.13.12
   container_name: Nginx2
   restart: always
   networks:
     extnetwork:
      ipv4_address: 172.19.0.2
     
  db:
   image: mysql:5.7
   container_name: db
   volumes:
    - /var/lib/MysqL:/var/lib/MysqL
   restart: always
   networks:
     extnetwork:
   ports:
     - 3306:3306
   environment:
    MysqL_ROOT_PASSWORD: wordpress
    MysqL_DATABASE: wordpress
    MysqL_USER: wordpress
    MysqL_PASSWORD: wordpress   
  
  wordpress:
   image: wordpress:latest
   container_name: wordpress
   depends_on:
     - db
   ports:
     - "8000:80"
   restart: always
   networks:
     extnetwork:
   environment:
     wordpress_DB_HOST: db:3306
     wordpress_DB_NAME: wordpress
     wordpress_DB_USER: wordpress
     wordpress_DB_PASSWORD: wordpress
networks:
  extnetwork:
   ipam:
     config:
     - subnet: 172.19.0.0/16
      gateway: 172.19.0.1

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持编程之家。