/etc/kubernetes/kubelet.conf on was deleted. may be anyone has
/etc/foremost.conf format for conf file to restore
or is it possible to regenerate this config without cluster init ort may be some was used scalpel for such restorations
Probably the easiest thing you can do is to recreate the node.
But if you really don't want to recreate it, Kubernetes The Hard Way provides great explaination how to generate this file by hand.
Check out:
As for restoring "kubelet.conf" file option.
If you need to add custom type files' configuration to foremost, just remember that admin kubeconfig file does not differ from other kubeconfig files. Just look at existing one from one of your worker nodes.
Reconstructing "kubelet.conf" from scratch options:
Option A
Running following command with kubeadm* ** will help to re-create a new kubeconfig file dedicated for control plane node
kubeadm init phase kubeconfig kubelet --kubeconfig-dir=/tmp/new/*it stores a new kubeconfig kubelet.conf file in /tmp/new/ dir instead default location /etc/kubernetes/kubelet.conf<br>
** it's kind of workaround, and gives actually newly generated client certificate for control plane node
Option B
Proper way of getting back control plane's credentials is through CSR API, quoting after official documentation:
After your control plane is up, you should request all kubelet credentials from the CSR API
How to achieve it is documented in admin section of K8S doc here: