[root@node02 ~]# kubectl get nodes
the server doesn't have a resource type "nodes"
解决方法:
进入到master节点
scp /etc/kubernetes/admin.conf node02:~/.kube/config
[root@node01 .kube]# kubectl get nodes
NAME STATUS ROLES AGE VERSION
master01 Ready master 252d v1.9.6
node01 Ready <none> 252d v1.9.6
node02 Ready <none> 252d v1.9.6
恢复正常。