Kubelet, if using cloud provider external, initializes temporary
the node addresses using the non-cloud provider logic, until the
cloud provider overrides it.
This behavior has undesired consequences if the cloud-provider addresses
are different than the original ones, specially for hostNetwork pods,
that inherit these addresses from the Node.
Since some cloud-providers depend on this behavior, in order to keep
backward compatibility, assume that the specifying addresses via
the node-ip flags means that the intent is to keep the existing
behavior to temporary initialize the addresses.
If the node-ips are the unspecified addresses or are not set, then
wait for the external cloud provider to set the node addresses.
Change-Id: I3a3895f9b830769f9658e6a03f058c914c438a09
Signed-off-by: Antonio Ojea <aojea@google.com>