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)
}
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)
}
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
}
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
}
})
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)
}