Exemplo n.º 1
0
func checkPodIsolation(f1, f2 *e2e.Framework, nodeType NodeType) error {
	nodes := e2e.GetReadySchedulableNodesOrDie(f1.Client)
	var serverNode, clientNode *api.Node
	serverNode = &nodes.Items[0]
	if nodeType == DIFFERENT_NODE {
		if len(nodes.Items) == 1 {
			e2e.Skipf("Only one node is available in this environment")
		}
		clientNode = &nodes.Items[1]
	} else {
		clientNode = serverNode
	}

	podName := "isolation-webserver"
	defer f1.Client.Pods(f1.Namespace.Name).Delete(podName, nil)
	ip := e2e.LaunchWebserverPod(f1, podName, serverNode.Name)

	return checkConnectivityToHost(f2, clientNode.Name, "isolation-wget", ip, 10)
}
Exemplo n.º 2
0
func checkPodIsolation(f1, f2 *e2e.Framework, numNodes int) error {
	nodes, err := e2e.GetReadyNodes(f1)
	if err != nil {
		e2e.Failf("Failed to list nodes: %v", err)
	}
	var serverNode, clientNode *api.Node
	serverNode = &nodes.Items[0]
	if numNodes == 2 {
		if len(nodes.Items) == 1 {
			e2e.Skipf("Only one node is available in this environment")
		}
		clientNode = &nodes.Items[1]
	} else {
		clientNode = serverNode
	}

	podName := "isolation-webserver"
	defer f1.Client.Pods(f1.Namespace.Name).Delete(podName, nil)
	ip := e2e.LaunchWebserverPod(f1, podName, serverNode.Name)

	return checkConnectivityToHost(f2, clientNode.Name, "isolation-wget", ip, 10)
}
Exemplo n.º 3
0
func launchWebserverService(f *e2e.Framework, serviceName string, nodeName string) (serviceAddr string) {
	e2e.LaunchWebserverPod(f, serviceName, nodeName)
	// FIXME: make e2e.LaunchWebserverPod() set the label when creating the pod
	podClient := f.Client.Pods(f.Namespace.Name)
	pod, err := podClient.Get(serviceName)
	expectNoError(err)
	pod.ObjectMeta.Labels = make(map[string]string)
	pod.ObjectMeta.Labels["name"] = "web"
	podClient.Update(pod)

	servicePort := 8080
	service := &api.Service{
		ObjectMeta: api.ObjectMeta{
			Name: serviceName,
		},
		Spec: api.ServiceSpec{
			Type: api.ServiceTypeClusterIP,
			Ports: []api.ServicePort{
				{
					Protocol: api.ProtocolTCP,
					Port:     int32(servicePort),
				},
			},
			Selector: map[string]string{
				"name": "web",
			},
		},
	}
	serviceClient := f.Client.Services(f.Namespace.Name)
	_, err = serviceClient.Create(service)
	expectNoError(err)
	expectNoError(f.WaitForAnEndpoint(serviceName))
	createdService, err := serviceClient.Get(serviceName)
	expectNoError(err)
	serviceAddr = fmt.Sprintf("%s:%d", createdService.Spec.ClusterIP, servicePort)
	e2e.Logf("Target service IP:port is %s", serviceAddr)
	return
}
Exemplo n.º 4
0
var _ = Describe("[networking] OVS", func() {
	Context("generic", func() {
		f1 := e2e.NewDefaultFramework("net-ovs1")
		oc := testexutil.NewCLI("get-flows", testexutil.KubeConfigPath())

		It("should add and remove flows when pods are added and removed", func() {
			nodes := e2e.GetReadySchedulableNodesOrDie(f1.Client)
			origFlows := getFlowsForAllNodes(oc, nodes.Items)
			Expect(len(origFlows)).To(Equal(len(nodes.Items)))
			for _, flows := range origFlows {
				Expect(len(flows)).ToNot(Equal(0))
			}

			podName := "ovs-test-webserver"
			deployNodeName := nodes.Items[0].Name
			ipPort := e2e.LaunchWebserverPod(f1, podName, deployNodeName)
			ip := strings.Split(ipPort, ":")[0]

			newFlows := getFlowsForAllNodes(oc, nodes.Items)
			for _, node := range nodes.Items {
				if node.Name != deployNodeName {
					Expect(reflect.DeepEqual(origFlows[node.Name], newFlows[node.Name])).To(BeTrue(), "Flows on non-deployed-to nodes should be unchanged")
				}
			}

			foundPodFlow := false
			for _, flow := range newFlows[deployNodeName] {
				if strings.Contains(flow, "="+ip+",") || strings.Contains(flow, "="+ip+" ") {
					foundPodFlow = true
					break
				}
Exemplo n.º 5
0
	})

	framework.KubeDescribe("Granular Checks", func() {

		connectivityTimeout := 10

		It("should function for pod communication on a single node", func() {

			By("Picking a node")
			nodes := framework.GetReadySchedulableNodesOrDie(f.Client)
			node := nodes.Items[0]

			By("Creating a webserver pod")
			podName := "same-node-webserver"
			defer f.Client.Pods(f.Namespace.Name).Delete(podName, nil)
			ip := framework.LaunchWebserverPod(f, podName, node.Name)

			By("Checking that the webserver is accessible from a pod on the same node")
			framework.ExpectNoError(framework.CheckConnectivityToHost(f, node.Name, "same-node-wget", ip, connectivityTimeout))
		})

		It("should function for pod communication between nodes", func() {

			podClient := f.Client.Pods(f.Namespace.Name)

			By("Picking multiple nodes")
			nodes := framework.GetReadySchedulableNodesOrDie(f.Client)

			if len(nodes.Items) == 1 {
				framework.Skipf("The test requires two Ready nodes on %s, but found just one.", framework.TestContext.Provider)
			}