etcd Pending status (volume mount timed out)

Created by: garloff

I have seen the etcd container in a Pending status for extended amounts of time (hours) and the event log indicating that the two volumes could not be mounted. (Which is ridiculous for

  etcd-certs:
    Type:          HostPath (bare host directory volume)
    Path:          /etc/kubernetes/pki/etcd
    HostPathType:  DirectoryOrCreate

(and etcd-data which is /var/lib/etcd)). It does only happen occasionally; if we're lucky, the etcd container does fail a liveness probe and gets restarted and works just fine then. But we can't rely on it. I'll look into reproducing this, so I can insert proper logs here.