Comment # 3 on bug 1214406 from Dan Čermák

(In reply to Egbert Eich from comment #0)

> 2. kubelet.service does not start:
>    It complains about the option `--container-runtime` not being known. This
>    option is pulled in from /etc/sysconfig/kubelet. It needs to be deleted
> from
>    this file.

Could you please paste the contents of that file here?