在k8s集群节点执行命令报：The connection to the server localhost:8080 was refused - did you specify the right host or port?

在非master节点上执行k8s命令时提示：The connection to the server localhost:8080 was refused - did you specify the right host or port?

[root@devops-k8s17-36 ~]# kubectl get nodes
The connection to the server localhost:8080 was refused - did you specify the right host or port?

问题原因：kubernetes master没有与本机绑定，集群初始化的时候没有绑定，此时设置在本机的环境变量即可解决问题。

 

解决办法：

1.将主节点（master节点）中的  /etc/kubernetes/admin.conf 文件拷贝到从节点相同目录下:

（文件名不一定叫admin.config,不同的版本文件名可能不一样）

2.配置环境变量

[root@devops-k8s17-36 kubernetes]# vim admin.conf
[root@devops-k8s17-36 kubernetes]# echo "export KUBECONFIG=/etc/kubernetes/admin.conf" >> /etc/profile
[root@devops-k8s17-36 kubernetes]# source /etc/profile
[root@devops-k8s17-36 kubernetes]# kubectl get nodes
NAME              STATUS   ROLES                      AGE     VERSION
devops-k8s17-35   Ready    controlplane,etcd,worker   3d17h   v1.17.5
devops-k8s17-36   Ready    worker                     3d17h   v1.17.5
devops-k8s17-37   Ready    worker                     3d17h   v1.17.5
[root@devops-k8s17-36 kubernetes]#