cannot create network xxx(br-xxx) conflicts with network yyy(br-yyy) networks have overlapping IPv4

逃离我推掉我的手 2023-10-06 10:12 22阅读 0赞

执行 `docker stack deploy -c docker-compose.yml stack-demo` 时报错`cannot create network xxx(br-xxx) conflicts with network yyy(br-yyy) networks have overlapping IPv4`

## 具体报错信息 ##

cannot create network aa90481a88226785be9da4cffdc97415051b2025dbe267f992422bc56efe7a1f (br-aa90481a8822): 
    	conflicts with network b811025ad90df8b5de6e551bec44ef795b95d75cbc17e0a8802f7cceac269f39 (br-b811025ad90d): 
    	networks have overlapping IPv4

表示将要创建的网络`aa90481a8822` 和 原有网络`b811025ad90d` 冲突。

## 排查 ##

执行 `docker network ls` 查看docker网络  
![在这里插入图片描述][20200601221530109.png]

### 如果看到冲突网络id存在于docker网络列表中，可以通过移除冲突网络解决此问题： ###

`docker network rm b811025ad90d`

### 如果冲突网络id不存在于docker网络列表，则继续： ###

执行 `ip addr` 查看服务器的网络配置，发现确实有相应id的网桥，而且是DOWN状态  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMxNzcyNDQx_size_16_color_FFFFFF_t_70]  
删除掉网桥 `brctl delbr br-b811025ad90d`  
（如果没有brctl命令，通过 yum install -y bridge-utils 安装）

重启docker服务即可 `systemctl restart docker`

reference：  
[Docker Compose returns error “networks have overlapping IPv4”][Docker Compose returns error _networks have overlapping IPv4]

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[20200601221530109.png]: https://img-blog.csdnimg.cn/20200601221530109.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMxNzcyNDQx_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20200601220959844.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMxNzcyNDQx,size_16,color_FFFFFF,t_70
[Docker Compose returns error _networks have overlapping IPv4]: https://serverfault.com/questions/888907/docker-compose-returns-error-networks-have-overlapping-ipv4