[Bug 1264699] kubernetes do not respect tpmfiles.d policy

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1264699

--- Comment #4 from Jan Chaloupka  ---
kube-apiserver needs the directory as well (--cert-dir="/var/run/kubernetes")
[1].

As kube-apiserver service is run under kube user and kubelet can be installed
on the same host, the owner of the directory must be kube. Contrib is already
covering that [2]. So, only the ownership of the directory is really missing.

[1] http://kubernetes.io/docs/admin/kube-apiserver/
[2]
https://github.com/kubernetes/contrib/blob/master/init/systemd/tmpfiles.d/ku...