加入节点
kubeadm token create --print-join-command
删除节点
kubectl get node
kubectl delete nodes k8s-node02
kubectl delete nodes k8s-node03
在被删除的node节点中清空集群数据信息
kubeadm reset
kubeadm token create --print-join-command
kubectl get node
kubectl delete nodes k8s-node02
kubectl delete nodes k8s-node03
在被删除的node节点中清空集群数据信息
kubeadm reset