背景： harbor 默认启动会随机创建 172 网段的ip地址，跟集群规划的网段冲突

Harbor 网段修改步骤

0. 原来Harbor占用的网段

# 网桥名：harbor_harbor
[root@gpunode2 test]# docker network ls
NETWORK ID          NAME                DRIVER              SCOPE
da8684ecc4b6        harbor_harbor       bridge              local
# 查看路由表

[root@gpunode2 test]# route -n

Kernel IP routing table

Destination     Gateway         Genmask         Flags Metric Ref    Use Iface

172.21.0.0      0.0.0.0         255.255.0.0     U     0      0        0 br-da8684ecc4b6
# 查看网桥内部信息

docker inspect da8684ecc4b6
# 确认到Harbor占用的网段是172.21.0.0，和公司规划冲突

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1、停止harbor

#停止harbor
docker-compose -f /opt/harbor/docker-compose.yml down
[root@gpunode2 harbor]# docker-compose -f /opt/harbor/docker-compose.yml down

Stopping harbor-jobservice ... done

Stopping nginx             ... done

Stopping harbor-core       ... done

Stopping harbor-db         ... done

Stopping registry          ... done

Stopping registryctl       ... done

Stopping redis             ... done

Stopping harbor-portal     ... done

Stopping harbor-log        ... done

Removing harbor-jobservice ... done

Removing nginx             ... done

Removing harbor-core       ... done

Removing harbor-db         ... done

Removing registry          ... done

Removing registryctl       ... done

Removing redis             ... done

Removing harbor-portal     ... done

Removing harbor-log        ... done

Removing network harbor_harbor
# 查看网桥，确认harbor_harbor是否已经删掉

docker network ls
# 如果没有，使用以下命令删除网桥

# docker network remove [NETWORK ID]

2、创建Harbor新的网桥

# 创建Harbor新的网桥
docker network create --driver=bridge --subnet=172.252.0.1/16 harbor
# 验证网桥信息

[root@gpunode2 harbor]# docker network ls

NETWORK ID          NAME                DRIVER              SCOPE

e0a7e55534db        harbor              bridge              local
[root@gpunode2 harbor]# route -n | grep e0a7e55534db

172.252.0.0     0.0.0.0         255.255.0.0     U     0      0        0 br-e0a7e55534db

3、修改compose配置

# 2. 修改docker-compose.yml  把最下面network false 改成true
networks:
  harbor:
    external: true

4、重新启动

# 重新启动   
docker-compose -f /opt/harbor/docker-compose.yml up  -d --force-recreate
1
2

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注意

1. 启动方式

这种方式重启后，会使用新的网桥

但是使用.prepre命令重新生成配置文件后，或者./install.sh命令重装后，还是会创建harbor_harbor随机网桥，可能会冲突

所以，在使用.prepre命令或者./install.sh命令后，记得修改docker-compose.yml 把最下面network false 改成true

2. 使用非172网段

如果使用非172网段，在步骤2：创建Harbor新的网桥，还需要修改/etc/docker/daemon.json中的bip

因为doker默认使用的也是172网段，所以harbor指定的也是172网段，就不需要额外修改docker配置，只需要修改harbor配置就好了

#修改docker 网络地址
$  cat /etc/docker/daemon.json 
{
    // 修改bip--network bridge IP
    "bip":"172.254.0.1/16"
}
# 重启docker

systemctl daemon-reload

systemctl start docker

参考链接

https://docs.docker.com/engine/reference/commandline/dockerd/#/linux-configuration-file

https://goharbor.io/docs/2.0.0/install-config/run-installer-script/

ne/reference/commandline/dockerd/#/linux-configuration-file

https://goharbor.io/docs/2.0.0/install-config/run-installer-script/

https://docs.docker.com/compose/compose-file/