kubernetes集群中移除Node

例如要在集群中移出node2节点
1)在master节点上执行：

kubectl drain node2 --delete-local-data --force --ignore-daemonsets
kubectl delete node node2

2)在node2上执行：

kubeadm reset
ifconfig cni0 down
ip link delete cni0
ifconfig flannel. down
ip link delete flannel.
rm -rf /var/lib/cni/