As with the k8sCNIRegistryPlugin the watching is for the
complete node, instead of per pod and namespace, we need
to make registry information to account for the namespace
where the pod is created to differentiate between different
containers running on the same node, with the same name, but
in a different namespace
Related-Bug: 1731486
Change-Id: I26e1dec6ae613c5316a45f93563c4a015df59441