FEATURE REQUEST: Bring support for key-only run options

Currently, containers cannot be assign for instance, the --rm (remove) option, because it's only a --key, not --key value option. For instance, in the zammad pod, there exists a container that only administers an initialisation process and then exits. This pod is no labeled "degraded", though it behaves as expected. Given a remove option, this now exited pod could be automatically removed and the pod would be labeled correctly as running.