So, Kubernetes, bare-metal cluster, and the etcd died on one of the control-plane machines after a reboot due to a hardware failure. You can clearly see that the control-plane node is "NotReady" and the log shows:

panic: tocommit(11989253) is out of range [lastIndex(11989215)]. Was the raft log corrupted, truncated, or lost?

What is the Kubernetes way? Kill egy node, create a new node, add this new node to the cluster and that's it. But this is an easily fixable error anyway:

This is the beginning of a beautiful friendship, I will migrate my previous blog posts and my precious social posts here.