Automatic merge from submit-queue
Use nodeutil.GetHostIP consistently when talking to nodes
Most of our communications from apiserver -> nodes used
nodutil.GetNodeHostIP, but a few places didn't - and this meant that the
node name needed to be resolvable _and_ we needed to populate valid IP
addresses.
```release-note
The apiserver now uses addresses reported by the kubelet in the Node object's status for apiserver->kubelet communications, rather than the name of the Node object. The address type used defaults to `InternalIP`, `ExternalIP`, and `LegacyHostIP` address types, in that order.
```
Automatic merge from submit-queue
remove testapi.Default.GroupVersion
I'm going to try to take this as a series of mechanicals. This removes `testapi.Default.GroupVersion()` and replaces it with `registered.GroupOrDie(api.GroupName).GroupVersion`.
@caesarxuchao I'm trying to see how much of `pkg/api/testapi` I can remove.
Most of our communications from apiserver -> nodes used
nodutil.GetNodeHostIP, but a few places didn't - and this
meant that the node name needed to be resolvable _and_ we needed
to populate valid IP addresses.
Fix the last few places that used the NodeName.
Issue #18525
Issue #9451
Issue #9728
Issue #17643
Issue #11543
Issue #22063
Issue #2462
Issue #22109
Issue #22770
Issue #32286
