Moved e2e boilerplate to framework

test/e2e/BUILD

@@ -51,7 +51,6 @@ go_library(
     importpath = "k8s.io/kubernetes/test/e2e",
     deps = [
         "//pkg/api/v1/pod:go_default_library",
-        "//pkg/version:go_default_library",
         "//staging/src/k8s.io/api/core/v1:go_default_library",
         "//staging/src/k8s.io/api/rbac/v1:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
@@ -67,7 +66,6 @@ go_library(
         "//test/e2e/framework/auth:go_default_library",
         "//test/e2e/framework/ginkgowrapper:go_default_library",
         "//test/e2e/framework/log:go_default_library",
-        "//test/e2e/framework/metrics:go_default_library",
         "//test/e2e/framework/pod:go_default_library",
         "//test/e2e/framework/providers/aws:go_default_library",
         "//test/e2e/framework/providers/azure:go_default_library",
@@ -76,14 +74,11 @@ go_library(
         "//test/e2e/framework/providers/openstack:go_default_library",
         "//test/e2e/framework/providers/vsphere:go_default_library",
         "//test/e2e/framework/testfiles:go_default_library",
-        "//test/e2e/manifest:go_default_library",
-        "//test/utils:go_default_library",
         "//vendor/github.com/onsi/ginkgo:go_default_library",
         "//vendor/github.com/onsi/ginkgo/config:go_default_library",
         "//vendor/github.com/onsi/ginkgo/reporters:go_default_library",
         "//vendor/github.com/onsi/gomega:go_default_library",
         "//vendor/k8s.io/klog:go_default_library",
-        "//vendor/k8s.io/utils/net:go_default_library",
     ],
 )
 

test/e2e/e2e.go

@@ -18,11 +18,9 @@ package e2e
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path"
 	"testing"
-	"time"
 
 	"github.com/onsi/ginkgo"
 	"github.com/onsi/ginkgo/config"
@@ -30,20 +28,11 @@ import (
 	"github.com/onsi/gomega"
 	"k8s.io/klog"
 
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	runtimeutils "k8s.io/apimachinery/pkg/util/runtime"
-	clientset "k8s.io/client-go/kubernetes"
 	"k8s.io/component-base/logs"
-	"k8s.io/kubernetes/pkg/version"
 	commontest "k8s.io/kubernetes/test/e2e/common"
 	"k8s.io/kubernetes/test/e2e/framework"
 	"k8s.io/kubernetes/test/e2e/framework/ginkgowrapper"
-	e2elog "k8s.io/kubernetes/test/e2e/framework/log"
-	e2emetrics "k8s.io/kubernetes/test/e2e/framework/metrics"
-	e2epod "k8s.io/kubernetes/test/e2e/framework/pod"
-	"k8s.io/kubernetes/test/e2e/manifest"
-	testutils "k8s.io/kubernetes/test/utils"
-	utilnet "k8s.io/utils/net"
 
 	// ensure auth plugins are loaded
 	_ "k8s.io/client-go/plugin/pkg/client/auth"
@@ -57,173 +46,21 @@ import (
 	_ "k8s.io/kubernetes/test/e2e/framework/providers/vsphere"
 )
 
-var (
-	cloudConfig      = &framework.TestContext.CloudConfig
-	nodeKillerStopCh = make(chan struct{})
-)
-
-// There are certain operations we only want to run once per overall test invocation
-// (such as deleting old namespaces, or verifying that all system pods are running.
-// Because of the way Ginkgo runs tests in parallel, we must use SynchronizedBeforeSuite
-// to ensure that these operations only run on the first parallel Ginkgo node.
-//
-// This function takes two parameters: one function which runs on only the first Ginkgo node,
-// returning an opaque byte array, and then a second function which runs on all Ginkgo nodes,
-// accepting the byte array.
 var _ = ginkgo.SynchronizedBeforeSuite(func() []byte {
-	// Run only on Ginkgo node 1
-
-	switch framework.TestContext.Provider {
-	case "gce", "gke":
-		framework.LogClusterImageSources()
-	}
-
-	c, err := framework.LoadClientset()
-	if err != nil {
-		klog.Fatal("Error loading client: ", err)
-	}
-
-	// Delete any namespaces except those created by the system. This ensures no
-	// lingering resources are left over from a previous test run.
-	if framework.TestContext.CleanStart {
-		deleted, err := framework.DeleteNamespaces(c, nil, /* deleteFilter */
-			[]string{
-				metav1.NamespaceSystem,
-				metav1.NamespaceDefault,
-				metav1.NamespacePublic,
-			})
-		if err != nil {
-			e2elog.Failf("Error deleting orphaned namespaces: %v", err)
-		}
-		klog.Infof("Waiting for deletion of the following namespaces: %v", deleted)
-		if err := framework.WaitForNamespacesDeleted(c, deleted, framework.NamespaceCleanupTimeout); err != nil {
-			e2elog.Failf("Failed to delete orphaned namespaces %v: %v", deleted, err)
-		}
-	}
-
-	// In large clusters we may get to this point but still have a bunch
-	// of nodes without Routes created. Since this would make a node
-	// unschedulable, we need to wait until all of them are schedulable.
-	framework.ExpectNoError(framework.WaitForAllNodesSchedulable(c, framework.TestContext.NodeSchedulableTimeout))
-
-	// If NumNodes is not specified then auto-detect how many are scheduleable and not tainted
-	if framework.TestContext.CloudConfig.NumNodes == framework.DefaultNumNodes {
-		framework.TestContext.CloudConfig.NumNodes = len(framework.GetReadySchedulableNodesOrDie(c).Items)
-	}
-
-	// Ensure all pods are running and ready before starting tests (otherwise,
-	// cluster infrastructure pods that are being pulled or started can block
-	// test pods from running, and tests that ensure all pods are running and
-	// ready will fail).
-	podStartupTimeout := framework.TestContext.SystemPodsStartupTimeout
-	// TODO: In large clusters, we often observe a non-starting pods due to
-	// #41007. To avoid those pods preventing the whole test runs (and just
-	// wasting the whole run), we allow for some not-ready pods (with the
-	// number equal to the number of allowed not-ready nodes).
-	if err := e2epod.WaitForPodsRunningReady(c, metav1.NamespaceSystem, int32(framework.TestContext.MinStartupPods), int32(framework.TestContext.AllowedNotReadyNodes), podStartupTimeout, map[string]string{}); err != nil {
-		framework.DumpAllNamespaceInfo(c, metav1.NamespaceSystem)
-		framework.LogFailedContainers(c, metav1.NamespaceSystem, e2elog.Logf)
-		runKubernetesServiceTestContainer(c, metav1.NamespaceDefault)
-		e2elog.Failf("Error waiting for all pods to be running and ready: %v", err)
-	}
-
-	if err := framework.WaitForDaemonSets(c, metav1.NamespaceSystem, int32(framework.TestContext.AllowedNotReadyNodes), framework.TestContext.SystemDaemonsetStartupTimeout); err != nil {
-		e2elog.Logf("WARNING: Waiting for all daemonsets to be ready failed: %v", err)
-	}
-
-	// Log the version of the server and this client.
-	e2elog.Logf("e2e test version: %s", version.Get().GitVersion)
-
-	dc := c.DiscoveryClient
-
-	serverVersion, serverErr := dc.ServerVersion()
-	if serverErr != nil {
-		e2elog.Logf("Unexpected server error retrieving version: %v", serverErr)
-	}
-	if serverVersion != nil {
-		e2elog.Logf("kube-apiserver version: %s", serverVersion.GitVersion)
-	}
-
-	// Obtain the default IP family of the cluster
-	// Some e2e test are designed to work on IPv4 only, this global variable
-	// allows to adapt those tests to work on both IPv4 and IPv6
-	// TODO(dual-stack): dual stack clusters should pass full e2e testing at least with the primary IP family
-	// the dual stack clusters can be ipv4-ipv6 or ipv6-ipv4, order matters,
-	// and services use the primary IP family by default
-	// If we´ll need to provide additional context for dual-stack, we can detect it
-	// because pods have two addresses (one per family)
-	framework.TestContext.IPFamily = getDefaultClusterIPFamily(c)
-	e2elog.Logf("Cluster IP family: %s", framework.TestContext.IPFamily)
-
 	// Reference common test to make the import valid.
 	commontest.CurrentSuite = commontest.E2E
-
+	framework.SetupSuite()
-	if framework.TestContext.NodeKiller.Enabled {
-		nodeKiller := framework.NewNodeKiller(framework.TestContext.NodeKiller, c, framework.TestContext.Provider)
-		nodeKillerStopCh = make(chan struct{})
-		go nodeKiller.Run(nodeKillerStopCh)
-	}
 	return nil
-
 }, func(data []byte) {
 	// Run on all Ginkgo nodes
 })
 
-// Similar to SynchronizedBeforeSuite, we want to run some operations only once (such as collecting cluster logs).
-// Here, the order of functions is reversed; first, the function which runs everywhere,
-// and then the function that only runs on the first Ginkgo node.
 var _ = ginkgo.SynchronizedAfterSuite(func() {
-	// Run on all Ginkgo nodes
+	framework.CleanupSuite()
-	e2elog.Logf("Running AfterSuite actions on all nodes")
-	framework.RunCleanupActions()
 }, func() {
-	// Run only Ginkgo on node 1
+	framework.AfterSuiteActions()
-	e2elog.Logf("Running AfterSuite actions on node 1")
-	if framework.TestContext.ReportDir != "" {
-		framework.CoreDump(framework.TestContext.ReportDir)
-	}
-	if framework.TestContext.GatherSuiteMetricsAfterTest {
-		if err := gatherTestSuiteMetrics(); err != nil {
-			e2elog.Logf("Error gathering metrics: %v", err)
-		}
-	}
-	if framework.TestContext.NodeKiller.Enabled {
-		close(nodeKillerStopCh)
-	}
 })
 
-func gatherTestSuiteMetrics() error {
-	e2elog.Logf("Gathering metrics")
-	c, err := framework.LoadClientset()
-	if err != nil {
-		return fmt.Errorf("error loading client: %v", err)
-	}
-
-	// Grab metrics for apiserver, scheduler, controller-manager, kubelet (for non-kubemark case) and cluster autoscaler (optionally).
-	grabber, err := e2emetrics.NewMetricsGrabber(c, nil, !framework.ProviderIs("kubemark"), true, true, true, framework.TestContext.IncludeClusterAutoscalerMetrics)
-	if err != nil {
-		return fmt.Errorf("failed to create MetricsGrabber: %v", err)
-	}
-
-	received, err := grabber.Grab()
-	if err != nil {
-		return fmt.Errorf("failed to grab metrics: %v", err)
-	}
-
-	metricsForE2E := (*e2emetrics.MetricsForE2E)(&received)
-	metricsJSON := metricsForE2E.PrintJSON()
-	if framework.TestContext.ReportDir != "" {
-		filePath := path.Join(framework.TestContext.ReportDir, "MetricsForE2ESuite_"+time.Now().Format(time.RFC3339)+".json")
-		if err := ioutil.WriteFile(filePath, []byte(metricsJSON), 0644); err != nil {
-			return fmt.Errorf("error writing to %q: %v", filePath, err)
-		}
-	} else {
-		e2elog.Logf("\n\nTest Suite Metrics:\n%s\n", metricsJSON)
-	}
-
-	return nil
-}
-
 // RunE2ETests checks configuration parameters (specified through flags) and then runs
 // E2E tests using the Ginkgo runner.
 // If a "report directory" is specified, one or more JUnit test reports will be
@@ -255,52 +92,3 @@ func RunE2ETests(t *testing.T) {
 
 	ginkgo.RunSpecsWithDefaultAndCustomReporters(t, "Kubernetes e2e suite", r)
 }
-
-// Run a test container to try and contact the Kubernetes api-server from a pod, wait for it
-// to flip to Ready, log its output and delete it.
-func runKubernetesServiceTestContainer(c clientset.Interface, ns string) {
-	path := "test/images/clusterapi-tester/pod.yaml"
-	e2elog.Logf("Parsing pod from %v", path)
-	p, err := manifest.PodFromManifest(path)
-	if err != nil {
-		e2elog.Logf("Failed to parse clusterapi-tester from manifest %v: %v", path, err)
-		return
-	}
-	p.Namespace = ns
-	if _, err := c.CoreV1().Pods(ns).Create(p); err != nil {
-		e2elog.Logf("Failed to create %v: %v", p.Name, err)
-		return
-	}
-	defer func() {
-		if err := c.CoreV1().Pods(ns).Delete(p.Name, nil); err != nil {
-			e2elog.Logf("Failed to delete pod %v: %v", p.Name, err)
-		}
-	}()
-	timeout := 5 * time.Minute
-	if err := e2epod.WaitForPodCondition(c, ns, p.Name, "clusterapi-tester", timeout, testutils.PodRunningReady); err != nil {
-		e2elog.Logf("Pod %v took longer than %v to enter running/ready: %v", p.Name, timeout, err)
-		return
-	}
-	logs, err := e2epod.GetPodLogs(c, ns, p.Name, p.Spec.Containers[0].Name)
-	if err != nil {
-		e2elog.Logf("Failed to retrieve logs from %v: %v", p.Name, err)
-	} else {
-		e2elog.Logf("Output of clusterapi-tester:\n%v", logs)
-	}
-}
-
-// getDefaultClusterIPFamily obtains the default IP family of the cluster
-// using the Cluster IP address of the kubernetes service created in the default namespace
-// This unequivocally identifies the default IP family because services are single family
-func getDefaultClusterIPFamily(c clientset.Interface) string {
-	// Get the ClusterIP of the kubernetes service created in the default namespace
-	svc, err := c.CoreV1().Services(metav1.NamespaceDefault).Get("kubernetes", metav1.GetOptions{})
-	if err != nil {
-		e2elog.Failf("Failed to get kubernetes service ClusterIP: %v", err)
-	}
-
-	if utilnet.IsIPv6String(svc.Spec.ClusterIP) {
-		return "ipv6"
-	}
-	return "ipv4"
-}

test/e2e/framework/BUILD

@@ -23,6 +23,7 @@ go_library(
         "rc_util.go",
         "resource_usage_gatherer.go",
         "size.go",
+        "suites.go",
         "test_context.go",
         "util.go",
     ],
@@ -46,6 +47,7 @@ go_library(
         "//pkg/scheduler/nodeinfo:go_default_library",
         "//pkg/util/system:go_default_library",
         "//pkg/util/taints:go_default_library",
+        "//pkg/version:go_default_library",
         "//pkg/volume/util:go_default_library",
         "//staging/src/k8s.io/api/apps/v1:go_default_library",
         "//staging/src/k8s.io/api/core/v1:go_default_library",
@@ -98,6 +100,7 @@ go_library(
         "//test/e2e/framework/resource:go_default_library",
         "//test/e2e/framework/ssh:go_default_library",
         "//test/e2e/framework/testfiles:go_default_library",
+        "//test/e2e/manifest:go_default_library",
         "//test/utils:go_default_library",
         "//test/utils/image:go_default_library",
         "//vendor/github.com/onsi/ginkgo:go_default_library",

test/e2e/framework/nodes_util.go

@@ -324,6 +324,7 @@ type NodeKiller struct {
 
 // NewNodeKiller creates new NodeKiller.
 func NewNodeKiller(config NodeKillerConfig, client clientset.Interface, provider string) *NodeKiller {
+	config.NodeKillerStopCh = make(chan struct{})
 	return &NodeKiller{config, client, provider}
 }
 

test/e2e/framework/suites.go

@@ -0,0 +1,195 @@
+/*
+Copyright 2019 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package framework
+
+import (
+	"fmt"
+	"io/ioutil"
+	"path"
+	"time"
+
+	"k8s.io/klog"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/kubernetes/pkg/version"
+	e2elog "k8s.io/kubernetes/test/e2e/framework/log"
+	e2emetrics "k8s.io/kubernetes/test/e2e/framework/metrics"
+	e2epod "k8s.io/kubernetes/test/e2e/framework/pod"
+)
+
+var (
+	cloudConfig = &TestContext.CloudConfig
+)
+
+// SetupSuite is the boilerplate that can be used to setup ginkgo test suites, on the SynchronizedBeforeSuite step.
+// There are certain operations we only want to run once per overall test invocation
+// (such as deleting old namespaces, or verifying that all system pods are running.
+// Because of the way Ginkgo runs tests in parallel, we must use SynchronizedBeforeSuite
+// to ensure that these operations only run on the first parallel Ginkgo node.
+//
+// This function takes two parameters: one function which runs on only the first Ginkgo node,
+// returning an opaque byte array, and then a second function which runs on all Ginkgo nodes,
+// accepting the byte array.
+func SetupSuite() {
+	// Run only on Ginkgo node 1
+
+	switch TestContext.Provider {
+	case "gce", "gke":
+		LogClusterImageSources()
+	}
+
+	c, err := LoadClientset()
+	if err != nil {
+		klog.Fatal("Error loading client: ", err)
+	}
+
+	// Delete any namespaces except those created by the system. This ensures no
+	// lingering resources are left over from a previous test run.
+	if TestContext.CleanStart {
+		deleted, err := DeleteNamespaces(c, nil, /* deleteFilter */
+			[]string{
+				metav1.NamespaceSystem,
+				metav1.NamespaceDefault,
+				metav1.NamespacePublic,
+			})
+		if err != nil {
+			e2elog.Failf("Error deleting orphaned namespaces: %v", err)
+		}
+		klog.Infof("Waiting for deletion of the following namespaces: %v", deleted)
+		if err := WaitForNamespacesDeleted(c, deleted, NamespaceCleanupTimeout); err != nil {
+			e2elog.Failf("Failed to delete orphaned namespaces %v: %v", deleted, err)
+		}
+	}
+
+	// In large clusters we may get to this point but still have a bunch
+	// of nodes without Routes created. Since this would make a node
+	// unschedulable, we need to wait until all of them are schedulable.
+	ExpectNoError(WaitForAllNodesSchedulable(c, TestContext.NodeSchedulableTimeout))
+
+	// If NumNodes is not specified then auto-detect how many are scheduleable and not tainted
+	if TestContext.CloudConfig.NumNodes == DefaultNumNodes {
+		TestContext.CloudConfig.NumNodes = len(GetReadySchedulableNodesOrDie(c).Items)
+	}
+
+	// Ensure all pods are running and ready before starting tests (otherwise,
+	// cluster infrastructure pods that are being pulled or started can block
+	// test pods from running, and tests that ensure all pods are running and
+	// ready will fail).
+	podStartupTimeout := TestContext.SystemPodsStartupTimeout
+	// TODO: In large clusters, we often observe a non-starting pods due to
+	// #41007. To avoid those pods preventing the whole test runs (and just
+	// wasting the whole run), we allow for some not-ready pods (with the
+	// number equal to the number of allowed not-ready nodes).
+	if err := e2epod.WaitForPodsRunningReady(c, metav1.NamespaceSystem, int32(TestContext.MinStartupPods), int32(TestContext.AllowedNotReadyNodes), podStartupTimeout, map[string]string{}); err != nil {
+		DumpAllNamespaceInfo(c, metav1.NamespaceSystem)
+		LogFailedContainers(c, metav1.NamespaceSystem, e2elog.Logf)
+		runKubernetesServiceTestContainer(c, metav1.NamespaceDefault)
+		e2elog.Failf("Error waiting for all pods to be running and ready: %v", err)
+	}
+
+	if err := WaitForDaemonSets(c, metav1.NamespaceSystem, int32(TestContext.AllowedNotReadyNodes), TestContext.SystemDaemonsetStartupTimeout); err != nil {
+		e2elog.Logf("WARNING: Waiting for all daemonsets to be ready failed: %v", err)
+	}
+
+	// Log the version of the server and this client.
+	e2elog.Logf("e2e test version: %s", version.Get().GitVersion)
+
+	dc := c.DiscoveryClient
+
+	serverVersion, serverErr := dc.ServerVersion()
+	if serverErr != nil {
+		e2elog.Logf("Unexpected server error retrieving version: %v", serverErr)
+	}
+	if serverVersion != nil {
+		e2elog.Logf("kube-apiserver version: %s", serverVersion.GitVersion)
+	}
+
+	// Obtain the default IP family of the cluster
+	// Some e2e test are designed to work on IPv4 only, this global variable
+	// allows to adapt those tests to work on both IPv4 and IPv6
+	// TODO(dual-stack): dual stack clusters should pass full e2e testing at least with the primary IP family
+	// the dual stack clusters can be ipv4-ipv6 or ipv6-ipv4, order matters,
+	// and services use the primary IP family by default
+	// If we´ll need to provide additional context for dual-stack, we can detect it
+	// because pods have two addresses (one per family)
+	TestContext.IPFamily = getDefaultClusterIPFamily(c)
+	e2elog.Logf("Cluster IP family: %s", TestContext.IPFamily)
+
+	if TestContext.NodeKiller.Enabled {
+		nodeKiller := NewNodeKiller(TestContext.NodeKiller, c, TestContext.Provider)
+		go nodeKiller.Run(TestContext.NodeKiller.NodeKillerStopCh)
+	}
+}
+
+// CleanupSuite is the boilerplate that can be used after tests on ginkgo were run, on the SynchronizedAfterSuite step.
+// Similar to SynchronizedBeforeSuite, we want to run some operations only once (such as collecting cluster logs).
+// Here, the order of functions is reversed; first, the function which runs everywhere,
+// and then the function that only runs on the first Ginkgo node.
+func CleanupSuite() {
+	// Run on all Ginkgo nodes
+	e2elog.Logf("Running AfterSuite actions on all nodes")
+	RunCleanupActions()
+}
+
+// AfterSuiteActions are actions that are run on ginkgo's SynchronizedAfterSuite
+func AfterSuiteActions() {
+	// Run only Ginkgo on node 1
+	e2elog.Logf("Running AfterSuite actions on node 1")
+	if TestContext.ReportDir != "" {
+		CoreDump(TestContext.ReportDir)
+	}
+	if TestContext.GatherSuiteMetricsAfterTest {
+		if err := gatherTestSuiteMetrics(); err != nil {
+			e2elog.Logf("Error gathering metrics: %v", err)
+		}
+	}
+	if TestContext.NodeKiller.Enabled {
+		close(TestContext.NodeKiller.NodeKillerStopCh)
+	}
+}
+
+func gatherTestSuiteMetrics() error {
+	e2elog.Logf("Gathering metrics")
+	c, err := LoadClientset()
+	if err != nil {
+		return fmt.Errorf("error loading client: %v", err)
+	}
+
+	// Grab metrics for apiserver, scheduler, controller-manager, kubelet (for non-kubemark case) and cluster autoscaler (optionally).
+	grabber, err := e2emetrics.NewMetricsGrabber(c, nil, !ProviderIs("kubemark"), true, true, true, TestContext.IncludeClusterAutoscalerMetrics)
+	if err != nil {
+		return fmt.Errorf("failed to create MetricsGrabber: %v", err)
+	}
+
+	received, err := grabber.Grab()
+	if err != nil {
+		return fmt.Errorf("failed to grab metrics: %v", err)
+	}
+
+	metricsForE2E := (*e2emetrics.MetricsForE2E)(&received)
+	metricsJSON := metricsForE2E.PrintJSON()
+	if TestContext.ReportDir != "" {
+		filePath := path.Join(TestContext.ReportDir, "MetricsForE2ESuite_"+time.Now().Format(time.RFC3339)+".json")
+		if err := ioutil.WriteFile(filePath, []byte(metricsJSON), 0644); err != nil {
+			return fmt.Errorf("error writing to %q: %v", filePath, err)
+		}
+	} else {
+		e2elog.Logf("\n\nTest Suite Metrics:\n%s\n", metricsJSON)
+	}
+
+	return nil
+}

test/e2e/framework/test_context.go

@@ -184,6 +184,8 @@ type NodeKillerConfig struct {
 	JitterFactor float64
 	// SimulatedDowntime is a duration between node is killed and recreated.
 	SimulatedDowntime time.Duration
+	// NodeKillerStopCh is a channel that is used to notify NodeKiller to stop killing nodes.
+	NodeKillerStopCh chan struct{}
 }
 
 // NodeTestContextType is part of TestContextType, it is shared by all node e2e test.

test/e2e/framework/util.go

@@ -87,9 +87,11 @@ import (
 	e2epod "k8s.io/kubernetes/test/e2e/framework/pod"
 	e2eresource "k8s.io/kubernetes/test/e2e/framework/resource"
 	e2essh "k8s.io/kubernetes/test/e2e/framework/ssh"
+	"k8s.io/kubernetes/test/e2e/manifest"
 	testutils "k8s.io/kubernetes/test/utils"
 	imageutils "k8s.io/kubernetes/test/utils/image"
 	uexec "k8s.io/utils/exec"
+	utilnet "k8s.io/utils/net"
 )
 
 const (
@@ -380,6 +382,55 @@ func RunIfSystemSpecNameIs(names ...string) {
 	skipInternalf(1, "Skipped because system spec name %q is not in %v", TestContext.SystemSpecName, names)
 }
 
+// Run a test container to try and contact the Kubernetes api-server from a pod, wait for it
+// to flip to Ready, log its output and delete it.
+func runKubernetesServiceTestContainer(c clientset.Interface, ns string) {
+	path := "test/images/clusterapi-tester/pod.yaml"
+	e2elog.Logf("Parsing pod from %v", path)
+	p, err := manifest.PodFromManifest(path)
+	if err != nil {
+		e2elog.Logf("Failed to parse clusterapi-tester from manifest %v: %v", path, err)
+		return
+	}
+	p.Namespace = ns
+	if _, err := c.CoreV1().Pods(ns).Create(p); err != nil {
+		e2elog.Logf("Failed to create %v: %v", p.Name, err)
+		return
+	}
+	defer func() {
+		if err := c.CoreV1().Pods(ns).Delete(p.Name, nil); err != nil {
+			e2elog.Logf("Failed to delete pod %v: %v", p.Name, err)
+		}
+	}()
+	timeout := 5 * time.Minute
+	if err := e2epod.WaitForPodCondition(c, ns, p.Name, "clusterapi-tester", timeout, testutils.PodRunningReady); err != nil {
+		e2elog.Logf("Pod %v took longer than %v to enter running/ready: %v", p.Name, timeout, err)
+		return
+	}
+	logs, err := e2epod.GetPodLogs(c, ns, p.Name, p.Spec.Containers[0].Name)
+	if err != nil {
+		e2elog.Logf("Failed to retrieve logs from %v: %v", p.Name, err)
+	} else {
+		e2elog.Logf("Output of clusterapi-tester:\n%v", logs)
+	}
+}
+
+// getDefaultClusterIPFamily obtains the default IP family of the cluster
+// using the Cluster IP address of the kubernetes service created in the default namespace
+// This unequivocally identifies the default IP family because services are single family
+func getDefaultClusterIPFamily(c clientset.Interface) string {
+	// Get the ClusterIP of the kubernetes service created in the default namespace
+	svc, err := c.CoreV1().Services(metav1.NamespaceDefault).Get("kubernetes", metav1.GetOptions{})
+	if err != nil {
+		e2elog.Failf("Failed to get kubernetes service ClusterIP: %v", err)
+	}
+
+	if utilnet.IsIPv6String(svc.Spec.ClusterIP) {
+		return "ipv6"
+	}
+	return "ipv4"
+}
+
 // ProviderIs returns true if the provider is included is the providers. Otherwise false.
 func ProviderIs(providers ...string) bool {
 	for _, provider := range providers {