Make cloud provider authoritative for node status address reporting

pkg/kubelet/kubelet_node_status.go

@@ -494,20 +494,10 @@ func (kl *Kubelet) setNodeAddress(node *v1.Node) error {
 			return fmt.Errorf("failed to get node address from cloud provider that matches ip: %v", kl.nodeIP)
 		}
 
-		// Only add a NodeHostName address if the cloudprovider did not specify one
-		// (we assume the cloudprovider knows best)
-		var addressNodeHostName *v1.NodeAddress
-		for i := range nodeAddresses {
-			if nodeAddresses[i].Type == v1.NodeHostName {
-				addressNodeHostName = &nodeAddresses[i]
-				break
-			}
-		}
-		if addressNodeHostName == nil {
-			hostnameAddress := v1.NodeAddress{Type: v1.NodeHostName, Address: kl.GetHostname()}
-			nodeAddresses = append(nodeAddresses, hostnameAddress)
-		} else {
-			glog.V(2).Infof("Using Node Hostname from cloudprovider: %q", addressNodeHostName.Address)
+		// Only add a NodeHostName address if the cloudprovider did not specify any addresses.
+		// (we assume the cloudprovider is authoritative if it specifies any addresses)
+		if len(nodeAddresses) == 0 {
+			nodeAddresses = []v1.NodeAddress{{Type: v1.NodeHostName, Address: kl.GetHostname()}}
 		}
 		node.Status.Addresses = nodeAddresses
 	} else {