"cni0" already has an IP address

背景

网络插件使用flannel的k8s集群,出错报错network: failed to delegate add: failed to set bridge addr: "cni0" already has an IP address different from

解决

删除网络设备

ifconfig cni0 down
ifconfig flannel.1 down
ip link delete cni0
ip link delete flannel.1

重建此节点的flannel pod

kubectl delete pod -n kube-system ${podname}