k8s证书更新(k8s版本>1.4的适用) 本次更新的版本是1.17.5
1、检查证书有效期
kubeadm alpha certs check-expiration
2、备份证书
cp -r /etc/kubernetes /etc/kubernetes_bak
3、升级证书
kubeadm alpha certs renew all
4、重启etcd kube-apiserver kube-controller kube-scheduler 4个容器
for i in etcd kube-apiserver kube-controller kube-scheduler;do
echo ….restart container $i….
docker ps |grep $i | grep -v pause | cut -d " " -f1 | xargs docker restart
done
5、再次查看已经升级成功
kubeadm alpha certs check-expiration
标签:k8s,证书,更新,certs,alpha,kubeadm,kube From: https://www.cnblogs.com/chuanghongmeng/p/16823283.html