Renew kubernetes certificates

kubectl get po
Unable to connect to the server: x509: certificate has expired or is not yet valid: current time 2023-08-04T19:58:43Z is after 2023-08-03T20:24:43Z

kubeadm certs check-expiration

cp -Rf /etc/kubernetes/ ~
kubeadm certs renew all

[renew] Reading configuration from the cluster...
[renew] FYI: You can look at this config file with 'kubectl -n kube-system get cm kubeadm-config -o yaml'
[renew] Error reading configuration from the Cluster. Falling back to default configuration

certificate embedded in the kubeconfig file for the admin to use and for kubeadm itself renewed
certificate for serving the Kubernetes API renewed
certificate the apiserver uses to access etcd renewed
certificate for the API server to connect to kubelet renewed
certificate embedded in the kubeconfig file for the controller manager to use renewed
certificate for liveness probes to healthcheck etcd renewed
certificate for etcd nodes to communicate with each other renewed
certificate for serving etcd renewed
certificate for the front proxy client renewed
certificate embedded in the kubeconfig file for the scheduler manager to use renewed

Done renewing certificates. You must restart the kube-apiserver, kube-controller-manager, kube-scheduler and etcd, so that they can use the new certificates.

cd  /etc/kubernetes/ && cp -R manifests manifests.copy && rm manifests/* && sleep 60 && cp manifests.copy/* manifests/ && rm -rf manifests.copy

kubeadm certs check-expiration

cp /etc/kubernetes/admin.conf $HOME/.kube/config
chown $(id -u):$(id -g) $HOME/.kube/config

Error from server: error dialing backend: remote error: tls: internal error

kubectl get csr  --sort-by=.metadata.creationTimestamp
kubectl certificate  approve csr-<****>