I have lost admin access to my Kubernetes cluster due to expired admin certificate.
" kubectl get nodes
error: You must be logged in to the server (Unauthorized)"
I create this cluster exactly one year ago, but didn’t know that the admin account expires!
How do I recover/generate/update this token, without “kubectl”?
Thanks in advance!
Kubernetes version: 1.14
Cloud being used: bare-metal
Host OS: Ubuntu 18.04