reuse func getNodeIP

pkg/util/node/node.go

@@ -24,6 +24,8 @@ import (
 	"strings"
 	"time"
 
+	"github.com/golang/glog"
+
 	"k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/types"
@@ -91,6 +93,22 @@ func GetNodeHostIP(node *v1.Node) (net.IP, error) {
 	return nil, fmt.Errorf("host IP unknown; known addresses: %v", addresses)
 }
 
+// GetNodeIP returns the ip of node with the provided hostname
+func GetNodeIP(client clientset.Interface, hostname string) net.IP {
+	var nodeIP net.IP
+	node, err := client.CoreV1().Nodes().Get(hostname, metav1.GetOptions{})
+	if err != nil {
+		glog.Warningf("Failed to retrieve node info: %v", err)
+		return nil
+	}
+	nodeIP, err = GetNodeHostIP(node)
+	if err != nil {
+		glog.Warningf("Failed to retrieve node IP: %v", err)
+		return nil
+	}
+	return nodeIP
+}
+
 // GetZoneKey is a helper function that builds a string identifier that is unique per failure-zone;
 // it returns empty-string for no zone.
 func GetZoneKey(node *v1.Node) string {