kubeadm 更新证书 #

sudo kubeadm certs check-expiration

sudo cp -r /etc/kubernetes/pki /etc/kubernetes/pki.bak
sudo cp /etc/kubernetes/admin.conf /etc/kubernetes/admin.conf.bak

sudo kubeadm certs renew all

sudo kubeadm certs check-expiration

mkdir k8s_manifests.bak
sudo mv /etc/kubernetes/manifests/* k8s_manifests.bak/
sudo mv k8s_manifests.bak/* /etc/kubernetes/manifests/

sudo cp /etc/kubernetes/admin.conf ~/.kube/config

kubectl get pod -n kube-system