k8s采坑记 - 证书过期之kubeadm重新生成证书

cp -rp /etc/kubernetes /etc/kubernetes.bak

rm -f /etc/kubernetes/pki/apiserver*
rm -f /etc/kubernetes/pki/front-proxy-client.*
rm -rf /etc/kubernetes/pki/etcd/healthcheck-client.*
rm -rf /etc/kubernetes/pki/etcd/server.*
rm -rf /etc/kubernetes/pki/etcd/peer.*

kubeadm alpha phase certs all

mv /etc/kubernetes/
mv /etc/kubernetes/*.conf /tmp/
kubeadm alpha phase kubeconfig all

systemctl restart kubelet

openssl x509 -in /etc/kubernetes/pki/apiserver.crt -noout -text |grep ' Not '
其他同理

kubectl get no