Kubernetes-kubectl命令出现错误【The connection to the server localhost:8080 was refused - did you specif...

今天在Kubernetes的从节点上运行命令【kubectl】出现了如下错误

[root@k8snode1 kubernetes]# kubectl get pod
The connection to the server localhost:8080 was refused - did you specify the right host or port?

  出现这个问题的原因是kubectl命令需要使用kubernetes-admin来运行，解决方法如下，将主节点中的【/etc/kubernetes/admin.conf】文件拷贝到从节点相同目录下，然后配置环境变量：

echo "export KUBECONFIG=/etc/kubernetes/admin.conf" >> ~/.bash_profile

立即生效

source ~/.bash_profile

接着再运行kubectl命令就OK了