一、查看證書過(guò)期的時(shí)間
kubeadm certs check-expiration
二葡盗、證書備份
cp -rp /etc/kubernetes/ /etc/kubernetes.20230320
三螟左、重新生成證書
kubeadm certs renew all
四、重新生成配置文件
mkdir /etc/kubernetes/conf.20230320
mv /etc/kubernetes/*.conf /etc/kubernetes/conf.20230320
kubeadm init phase kubeconfig all
五、重啟kubelet和更新配置
systemctl restart kubelet
cp /etc/kubernetes/admin.conf ~/.kube/config
