If firstTimestamp is not set use eventTime when printing event

Author: soltysh

pkg/printers/internalversion/printers.go

@@ -655,6 +655,16 @@ func listWithMoreString(list []string, more bool, count, max int) string {
 	return ret
 }
 
+// translateMicroTimestampSince returns the elapsed time since timestamp in
+// human-readable approximation.
+func translateMicroTimestampSince(timestamp metav1.MicroTime) string {
+	if timestamp.IsZero() {
+		return "<unknown>"
+	}
+
+	return duration.HumanDuration(time.Since(timestamp.Time))
+}
+
 // translateTimestampSince returns the elapsed time since timestamp in
 // human-readable approximation.
 func translateTimestampSince(timestamp metav1.Time) string {
@@ -1660,6 +1670,9 @@ func printEvent(obj *api.Event, options printers.GenerateOptions) ([]metav1.Tabl
 	}
 
 	firstTimestamp := translateTimestampSince(obj.FirstTimestamp)
+	if obj.FirstTimestamp.IsZero() {
+		firstTimestamp = translateMicroTimestampSince(obj.EventTime)
+	}
 	lastTimestamp := translateTimestampSince(obj.LastTimestamp)
 	if obj.LastTimestamp.IsZero() {
 		lastTimestamp = firstTimestamp

pkg/printers/internalversion/printers_test.go

@@ -136,6 +136,30 @@ func TestPrintEvent(t *testing.T) {
 			// Columns: Last Seen, Type, Reason, Object, Subobject, Message, First Seen, Count, Name
 			expected: []metav1.TableRow{{Cells: []interface{}{"2d", "Warning", "Event Reason", "deployment/Deployment Name", "spec.containers{foo}", "kubelet, Node1", "Message Data", "3d", int64(6), "event2"}}},
 		},
+		// Basic event, w/o FirstTimestamp set
+		{
+			event: api.Event{
+				Source: api.EventSource{
+					Component: "kubelet",
+					Host:      "Node1",
+				},
+				InvolvedObject: api.ObjectReference{
+					Kind:      "Deployment",
+					Name:      "Deployment Name",
+					FieldPath: "spec.containers{foo}",
+				},
+				Reason:        "Event Reason",
+				Message:       "Message Data",
+				EventTime:     metav1.MicroTime{Time: time.Now().UTC().AddDate(0, 0, -3)},
+				LastTimestamp: metav1.Time{Time: time.Now().UTC().AddDate(0, 0, -3)},
+				Count:         1,
+				Type:          api.EventTypeWarning,
+				ObjectMeta:    metav1.ObjectMeta{Name: "event3"},
+			},
+			options: printers.GenerateOptions{Wide: true},
+			// Columns: Last Seen, Type, Reason, Object, Subobject, Message, First Seen, Count, Name
+			expected: []metav1.TableRow{{Cells: []interface{}{"3d", "Warning", "Event Reason", "deployment/Deployment Name", "spec.containers{foo}", "kubelet, Node1", "Message Data", "3d", int64(1), "event3"}}},
+		},
 		// Basic event, w/o LastTimestamp set
 		{
 			event: api.Event{
@@ -150,6 +174,7 @@ func TestPrintEvent(t *testing.T) {
 				},
 				Reason:         "Event Reason",
 				Message:        "Message Data",
+				EventTime:      metav1.MicroTime{Time: time.Now().UTC().AddDate(0, 0, -3)},
 				FirstTimestamp: metav1.Time{Time: time.Now().UTC().AddDate(0, 0, -3)},
 				Count:          1,
 				Type:           api.EventTypeWarning,
@@ -159,6 +184,29 @@ func TestPrintEvent(t *testing.T) {
 			// Columns: Last Seen, Type, Reason, Object, Subobject, Message, First Seen, Count, Name
 			expected: []metav1.TableRow{{Cells: []interface{}{"3d", "Warning", "Event Reason", "deployment/Deployment Name", "spec.containers{foo}", "kubelet, Node1", "Message Data", "3d", int64(1), "event3"}}},
 		},
+		// Basic event, w/o FirstTimestamp and LastTimestamp set
+		{
+			event: api.Event{
+				Source: api.EventSource{
+					Component: "kubelet",
+					Host:      "Node1",
+				},
+				InvolvedObject: api.ObjectReference{
+					Kind:      "Deployment",
+					Name:      "Deployment Name",
+					FieldPath: "spec.containers{foo}",
+				},
+				Reason:     "Event Reason",
+				Message:    "Message Data",
+				EventTime:  metav1.MicroTime{Time: time.Now().UTC().AddDate(0, 0, -3)},
+				Count:      1,
+				Type:       api.EventTypeWarning,
+				ObjectMeta: metav1.ObjectMeta{Name: "event3"},
+			},
+			options: printers.GenerateOptions{Wide: true},
+			// Columns: Last Seen, Type, Reason, Object, Subobject, Message, First Seen, Count, Name
+			expected: []metav1.TableRow{{Cells: []interface{}{"3d", "Warning", "Event Reason", "deployment/Deployment Name", "spec.containers{foo}", "kubelet, Node1", "Message Data", "3d", int64(1), "event3"}}},
+		},
 	}
 
 	for i, test := range tests {