Add EventSource to api to have both Component and Host information.

pkg/kubectl/resource_printer_test.go

@@ -463,17 +463,17 @@ func TestPrintEventsResultSorted(t *testing.T) {
 	obj := api.EventList{
 		Items: []api.Event{
 			{
-				Source:    "kubelet",
+				Source:    api.EventSource{Component: "kubelet"},
 				Message:   "Item 1",
 				Timestamp: util.NewTime(time.Date(2014, time.January, 15, 0, 0, 0, 0, time.UTC)),
 			},
 			{
-				Source:    "scheduler",
+				Source:    api.EventSource{Component: "scheduler"},
 				Message:   "Item 2",
 				Timestamp: util.NewTime(time.Date(1987, time.June, 17, 0, 0, 0, 0, time.UTC)),
 			},
 			{
-				Source:    "kubelet",
+				Source:    api.EventSource{Component: "kubelet"},
 				Message:   "Item 3",
 				Timestamp: util.NewTime(time.Date(2002, time.December, 25, 0, 0, 0, 0, time.UTC)),
 			},