50 lines
1.6 KiB
Markdown
50 lines
1.6 KiB
Markdown
<h1><center>Kubernetes集群中Kubeadm证书到期问题</center></h1>
|
|
|
|
作者：行癫（盗版必究）
|
|
|
|
------
|
|
|
|
## 一：报错案例
|
|
|
|
#### 1.报错原因
|
|
|
|
```shell
|
|
[root@xingdiancloud-master ~]# kubectl get node
|
|
E0706 14:10:17.193472 1056310 memcache.go:265] couldn't get current server API group list: the server has asked for the client to provide credentials
|
|
E0706 14:10:17.194757 1056310 memcache.go:265] couldn't get current server API group list: the server has asked for the client to provide credentials
|
|
E0706 14:10:17.196208 1056310 memcache.go:265] couldn't get current server API group list: the server has asked for the client to provide credentials
|
|
E0706 14:10:17.197353 1056310 memcache.go:265] couldn't get current server API group list: the server has asked for the client to provide credentials
|
|
E0706 14:10:17.198343 1056310 memcache.go:265] couldn't get current server API group list: the server has asked for the client to provide credentials
|
|
error: You must be logged in to the server (the server has asked for the client to provide credentials)
|
|
```
|
|
|
|
|
|
|
|
#### 2.解决方案
|
|
|
|
检查当前证书的到期时间
|
|
|
|
```shell
|
|
kubeadm certs check-expiration
|
|
```
|
|
|
|
更新证书
|
|
|
|
```shell
|
|
kubeadm certs renew all
|
|
```
|
|
|
|
更新 kubeconfig 文件
|
|
|
|
```shell
|
|
sudo cp /etc/kubernetes/admin.conf $HOME/.kube/config
|
|
sudo chown $(id -u):$(id -g) $HOME/.kube/config
|
|
```
|
|
|
|
更新证书后，需要重启控制平面组件以使新的证书生效
|
|
|
|
```shell
|
|
systemctl restart kubelet
|
|
```
|
|
|