Automatic merge from submit-queue
kubelet/rkt - treat pod container as the infra - only network stats
As no "container name" annotation was being applied to the pod as a whole, the rkt pod container didn't have a container name label. This means that in stat/summary it came up as a nameless container that belonged to the pod.
this was problematic as it caused double counting of container stats.
this adds a container name annotation to the pod level which will be overridden during label creation by annotations of the same name at the container level for the containers themselves.
stats/summary will do the right thing as it will treat it the same as the infra container, just get network stats from it.
Suppress #26759
cc @kubernetes/sig-node @kubernetes/rktnetes-maintainers