switch kubelet to use external (client-go) object references for events

pkg/kubelet/events/BUILD

@@ -11,6 +11,10 @@ go_library(
     name = "go_default_library",
     srcs = ["event.go"],
     tags = ["automanaged"],
+    deps = [
+        "//pkg/api/v1:go_default_library",
+        "//vendor:k8s.io/client-go/pkg/api/v1",
+    ],
 )
 
 filegroup(

pkg/kubelet/events/event.go

@@ -16,6 +16,11 @@ limitations under the License.
 
 package events
 
+import (
+	clientv1 "k8s.io/client-go/pkg/api/v1"
+	"k8s.io/kubernetes/pkg/api/v1"
+)
+
 const (
 	// Container event reason list
 	CreatedContainer        = "Created"
@@ -76,3 +81,19 @@ const (
 	FailedPreStopHook     = "FailedPreStopHook"
 	UnfinishedPreStopHook = "UnfinishedPreStopHook"
 )
+
+// ToObjectReference takes an old style object reference and converts it to a client-go one
+func ToObjectReference(ref *v1.ObjectReference) *clientv1.ObjectReference {
+	if ref == nil {
+		return nil
+	}
+	return &clientv1.ObjectReference{
+		Kind:            ref.Kind,
+		Namespace:       ref.Namespace,
+		Name:            ref.Name,
+		UID:             ref.UID,
+		APIVersion:      ref.APIVersion,
+		ResourceVersion: ref.ResourceVersion,
+		FieldPath:       ref.FieldPath,
+	}
+}