Enable Add-On resource usage metrics gathering in scalability tests

hack/jenkins/e2e.sh

@@ -426,7 +426,8 @@ case ${JOB_NAME} in
   kubernetes-e2e-gce-scalability)
     : ${E2E_CLUSTER_NAME:="jenkins-gce-e2e-scalability"}
     : ${E2E_NETWORK:="e2e-scalability"}
-    : ${GINKGO_TEST_ARGS:="--ginkgo.focus=\[Performance\]"}
+    : ${GINKGO_TEST_ARGS:="--ginkgo.focus=\[Performance\] \
+        --gather-resource-usage=true"}
     : ${KUBE_GCE_INSTANCE_PREFIX:="e2e-scalability"}
     : ${PROJECT:="kubernetes-jenkins"}
     # Override GCE defaults.

test/e2e/density.go

@@ -82,6 +82,9 @@ var _ = Describe("Density [Skipped]", func() {
 	var ns string
 	var uuid string
 
+	framework := NewFramework("density")
+	framework.NamespaceDeletionTimeout = time.Hour
+
 	// Gathers data prior to framework namespace teardown
 	AfterEach(func() {
 		// Remove any remaining pods from this test if the
@@ -110,10 +113,6 @@ var _ = Describe("Density [Skipped]", func() {
 		Expect(highLatencyRequests).NotTo(BeNumerically(">", 0), "There should be no high-latency requests")
 	})
 
-	framework := NewFramework("density")
-	framework.NamespaceDeletionTimeout = time.Hour
-	framework.GatherKubeSystemResourceUsageData = testContext.GatherKubeSystemResourceUsageData
-
 	BeforeEach(func() {
 		c = framework.Client
 		ns = framework.Namespace.Name

test/e2e/e2e_test.go

@@ -84,7 +84,7 @@ func init() {
 	flag.BoolVar(&testContext.VerifyServiceAccount, "e2e-verify-service-account", true, "If true tests will verify the service account before running.")
 	flag.BoolVar(&testContext.DeleteNamespace, "delete-namespace", true, "If true tests will delete namespace after completion. It is only designed to make debugging easier, DO NOT turn it off by default.")
 	flag.BoolVar(&testContext.CleanStart, "clean-start", false, "If true, purge all namespaces except default and system before running tests. This serves to cleanup test namespaces from failed/interrupted e2e runs in a long-lived cluster.")
-	flag.BoolVar(&testContext.GatherKubeSystemResourceUsageData, "gather-resource-usage", true, "If set to true framework will be monitoring resource usage of system add-ons in (some) e2e tests.")
+	flag.BoolVar(&testContext.GatherKubeSystemResourceUsageData, "gather-resource-usage", false, "If set to true framework will be monitoring resource usage of system add-ons in (some) e2e tests.")
 }
 
 func TestE2E(t *testing.T) {

test/e2e/framework.go

@@ -40,10 +40,7 @@ type Framework struct {
 	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
+	gatherer containerResourceGatherer
 }
 
 // NewFramework makes a new framework and sets up a BeforeEach/AfterEach for
@@ -81,7 +78,7 @@ func (f *Framework) beforeEach() {
 		Logf("Skipping waiting for service account")
 	}
 
-	if f.GatherKubeSystemResourceUsageData {
+	if testContext.GatherKubeSystemResourceUsageData {
 		f.gatherer.startGatheringData(c, time.Minute)
 	}
 }
@@ -125,7 +122,7 @@ func (f *Framework) afterEach() {
 		Logf("Found DeleteNamespace=false, skipping namespace deletion!")
 	}
 
-	if f.GatherKubeSystemResourceUsageData {
+	if testContext.GatherKubeSystemResourceUsageData {
 		f.gatherer.stopAndPrintData([]int{50, 90, 99, 100})
 	}
 	// Paranoia-- prevent reuse!

test/e2e/util.go

@@ -119,22 +119,24 @@ type CloudConfig struct {
 }
 
 type TestContextType struct {
-	KubeConfig                        string
-	KubeContext                       string
-	CertDir                           string
-	Host                              string
-	RepoRoot                          string
-	Provider                          string
-	CloudConfig                       CloudConfig
-	KubectlPath                       string
-	OutputDir                         string
-	prefix                            string
-	MinStartupPods                    int
-	UpgradeTarget                     string
-	PrometheusPushGateway             string
-	VerifyServiceAccount              bool
-	DeleteNamespace                   bool
-	CleanStart                        bool
+	KubeConfig            string
+	KubeContext           string
+	CertDir               string
+	Host                  string
+	RepoRoot              string
+	Provider              string
+	CloudConfig           CloudConfig
+	KubectlPath           string
+	OutputDir             string
+	prefix                string
+	MinStartupPods        int
+	UpgradeTarget         string
+	PrometheusPushGateway string
+	VerifyServiceAccount  bool
+	DeleteNamespace       bool
+	CleanStart            bool
+	// 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
 }