# kubectl  get po  -A
NAMESPACE     NAME                                         READY   STATUS              RESTARTS        AGE
kube-system   coredns-7858b7bdf-qfm88                      0/1     ContainerCreating   0               93s
kube-system   coredns-7858b7bdf-sfb46                      0/1     ContainerCreating   0               93s
kube-system   etcd-sealos-k8s-node-01                      1/1     Running             4               14m
...
kube-system   kube-scheduler-sealos-k8s-node-06            1/1     Running             1               10m
kube-system   tiller-deploy-bfbf7585c-rsng9                0/1     ContainerCreating   0               6s


  Warning  FailedCreatePodSandBox  49s                 kubelet            Failed to create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "8e30c1f09cca90ddcd878f8e48f2b831114c4ec4903d6e880015f46fc069afe7" network for pod "kafka-0": networkPlugin cni failed to set up pod "kafka-0_default" network: failed to delegate add: failed to set bridge addr: "cni0" already has an IP address different from 10.244.4.1/24
  ...

从master 节点赋值到各个节点 /run/flannel

# cat /run/flannel/subnet.env
FLANNEL_NETWORK=10.244.0.0/16
FLANNEL_SUBNET=10.244.0.1/24   # 从原来集群拷贝过来的，与master 初始化生成subnet 网段不一样 
FLANNEL_MTU=1450
FLANNEL_IPMASQ=true
-bash-4.2#

# 注意删除之后不会重新生成了网卡了，需要重启初始化集群，以前老的版本是自己会重启
ip link delete cni0

参考：https://blog.csdn.net/weixin_42562106/article/details/123749291