error: no configuration has been provided, try setting KUBERNET

问题：在node节点执行出现以下错误。

[root@localhost ~]# kubectl get node

error: no configuration has been provided, try setting KUBERNETES_MASTER environment variable

1.在k8s 的master节点可以看到 admin.conf

[root@localhost kubernetes]# pwd

/etc/kubernetes

[root@localhost kubernetes]# ls

admin.conf  controller-manager.conf  kubelet.conf  manifests  pki  scheduler.conf

2. 在主节点移动到node

[root@localhost kubernetes]# scp admin.conf root@192.168.31.121:/etc/kubernetes

3.添加变量

[root@localhost kubernetes]# export KUBECONFIG=/etc/kubernetes/admin.conf

[root@localhost kubernetes]# source /etc/profile

4.可以看到已经可以了

[root@localhost kubernetes]# kubectl get node

NAME     STATUS   ROLES    AGE   VERSION

master   Ready    master   54m   v1.18.0

node1    Ready    <none>   27m   v1.18.0

[root@localhost kubernetes]#