Add resource monitoring of kube-system pods

test/e2e/framework.go

@@ -39,6 +39,11 @@ type Framework struct {
 	Namespace                *api.Namespace
 	Client                   *client.Client
 	NamespaceDeletionTimeout time.Duration
+
+	// If set to true framework will start a goroutine monitoring resource usage of system add-ons.
+	// It will read the data every 30 seconds from all Nodes and print summary during afterEach.
+	GatherKubeSystemResourceUsageData bool
+	gatherer                          containerResourceGatherer
 }
 
 // NewFramework makes a new framework and sets up a BeforeEach/AfterEach for
@@ -75,6 +80,10 @@ func (f *Framework) beforeEach() {
 	} else {
 		Logf("Skipping waiting for service account")
 	}
+
+	if f.GatherKubeSystemResourceUsageData {
+		f.gatherer.startGatheringData(c, time.Minute)
+	}
 }
 
 // afterEach deletes the namespace, after reading its events.
@@ -113,6 +122,10 @@ func (f *Framework) afterEach() {
 	} else {
 		Logf("Found DeleteNamespace=false, skipping namespace deletion!")
 	}
+
+	if f.GatherKubeSystemResourceUsageData {
+		f.gatherer.stopAndPrintData([]int{50, 90, 99, 100})
+	}
 	// Paranoia-- prevent reuse!
 	f.Namespace = nil
 	f.Client = nil