https://blog.csdn.net/gsying1474/article/details/53256599 执行: [root@lab1 coredns]# kubectl delete -f coredns.yaml 现象: [root@lab2 k8s]# kubectl get pods -n kube-system NAME READY STATUS RESTARTS AGE coredns-6c65fc5cbb-7xvzs 0/1 ContainerCreating 0 2m coredns-6c65fc5cbb-kh4zg 0/1 ContainerCreating 0 2m 原因: 修改node名称后的遗留症状 查看pod日志,最后部分 [root@lab2 k8s]# kubectl describe po coredns-6c65fc5cbb-7xvzs -n kube-system "cni0" already has an IP address different from 10.244.5.1/24 解决: 所有节点执行如下: rm -rf /var/lib/cni/flannel/* && rm -rf /var/lib/cni/networks/cbr0/* && ip link delete cni0 rm -rf /var/lib/cni/networks/cni0/*