ff20b172ef
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.
```
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| .. | ||
| etcd | ||
| rest | ||
| doc.go | ||
| registry.go | ||
| strategy_test.go | ||
| strategy.go | ||