// setup includes setupCore and also sets up services
func (config *NetworkingTestConfig) setup(selector map[string]string) {
config.setupCore(selector)
By("Getting node addresses")
framework.ExpectNoError(framework.WaitForAllNodesSchedulable(config.f.Client))
nodeList := framework.GetReadySchedulableNodesOrDie(config.f.Client)
config.ExternalAddrs = framework.NodeAddresses(nodeList, api.NodeExternalIP)
if len(config.ExternalAddrs) < 2 {
// fall back to legacy IPs
config.ExternalAddrs = framework.NodeAddresses(nodeList, api.NodeLegacyHostIP)
}
Expect(len(config.ExternalAddrs)).To(BeNumerically(">=", 2), fmt.Sprintf("At least two nodes necessary with an external or LegacyHostIP"))
config.Nodes = nodeList.Items
By("Creating the service on top of the pods in kubernetes")
config.createNodePortService(selector)
for _, p := range config.NodePortService.Spec.Ports {
switch p.Protocol {
case api.ProtocolUDP:
config.NodeUdpPort = int(p.NodePort)
case api.ProtocolTCP:
config.NodeHttpPort = int(p.NodePort)
default:
continue
}
}
config.ClusterIP = config.NodePortService.Spec.ClusterIP
config.NodeIP = config.ExternalAddrs[0]
}
func (config *NetworkingTestConfig) createNetProxyPods(podName string, selector map[string]string) []*api.Pod {
framework.ExpectNoError(framework.WaitForAllNodesSchedulable(config.f.Client))
nodeList := framework.GetReadySchedulableNodesOrDie(config.f.Client)
// To make this test work reasonably fast in large clusters,
// we limit the number of NetProxyPods to no more than 100 ones
// on random nodes.
nodes := shuffleNodes(nodeList.Items)
if len(nodes) > maxNetProxyPodsCount {
nodes = nodes[:maxNetProxyPodsCount]
}
// create pods, one for each node
createdPods := make([]*api.Pod, 0, len(nodes))
for i, n := range nodes {
podName := fmt.Sprintf("%s-%d", podName, i)
pod := config.createNetShellPodSpec(podName, n.Name)
pod.ObjectMeta.Labels = selector
createdPod := config.createPod(pod)
createdPods = append(createdPods, createdPod)
}
// wait that all of them are up
runningPods := make([]*api.Pod, 0, len(nodes))
for _, p := range createdPods {
framework.ExpectNoError(config.f.WaitForPodReady(p.Name))
rp, err := config.getPodClient().Get(p.Name)
framework.ExpectNoError(err)
runningPods = append(runningPods, rp)
}
return runningPods
}
func (config *KubeProxyTestConfig) createNetProxyPods(podName string, selector map[string]string) []*api.Pod {
framework.ExpectNoError(framework.WaitForAllNodesSchedulable(config.f.Client))
nodes := framework.GetReadySchedulableNodesOrDie(config.f.Client)
// create pods, one for each node
createdPods := make([]*api.Pod, 0, len(nodes.Items))
for i, n := range nodes.Items {
podName := fmt.Sprintf("%s-%d", podName, i)
pod := config.createNetShellPodSpec(podName, n.Name)
pod.ObjectMeta.Labels = selector
createdPod := config.createPod(pod)
createdPods = append(createdPods, createdPod)
}
// wait that all of them are up
runningPods := make([]*api.Pod, 0, len(nodes.Items))
for _, p := range createdPods {
framework.ExpectNoError(config.f.WaitForPodReady(p.Name))
rp, err := config.getPodClient().Get(p.Name)
framework.ExpectNoError(err)
runningPods = append(runningPods, rp)
}
return runningPods
}
func (config *KubeProxyTestConfig) setup() {
By("creating a selector")
selectorName := "selector-" + string(util.NewUUID())
serviceSelector := map[string]string{
selectorName: "true",
}
By("Getting node addresses")
framework.ExpectNoError(framework.WaitForAllNodesSchedulable(config.f.Client))
nodeList := framework.GetReadySchedulableNodesOrDie(config.f.Client)
config.externalAddrs = framework.NodeAddresses(nodeList, api.NodeExternalIP)
if len(config.externalAddrs) < 2 {
// fall back to legacy IPs
config.externalAddrs = framework.NodeAddresses(nodeList, api.NodeLegacyHostIP)
}
Expect(len(config.externalAddrs)).To(BeNumerically(">=", 2), fmt.Sprintf("At least two nodes necessary with an external or LegacyHostIP"))
config.nodes = nodeList.Items
if enableLoadBalancerTest {
By("Creating the LoadBalancer Service on top of the pods in kubernetes")
config.createLoadBalancerService(serviceSelector)
}
By("Creating the service pods in kubernetes")
podName := "netserver"
config.endpointPods = config.createNetProxyPods(podName, serviceSelector)
By("Creating the service on top of the pods in kubernetes")
config.createNodePortService(serviceSelector)
By("Creating test pods")
config.createTestPods()
}
func (config *NetworkingTestConfig) setup() {
By("creating a selector")
selectorName := "selector-" + string(uuid.NewUUID())
serviceSelector := map[string]string{
selectorName: "true",
}
By("Getting node addresses")
framework.ExpectNoError(framework.WaitForAllNodesSchedulable(config.f.Client))
nodeList := framework.GetReadySchedulableNodesOrDie(config.f.Client)
config.externalAddrs = framework.NodeAddresses(nodeList, api.NodeExternalIP)
if len(config.externalAddrs) < 2 {
// fall back to legacy IPs
config.externalAddrs = framework.NodeAddresses(nodeList, api.NodeLegacyHostIP)
}
Expect(len(config.externalAddrs)).To(BeNumerically(">=", 2), fmt.Sprintf("At least two nodes necessary with an external or LegacyHostIP"))
config.nodes = nodeList.Items
By("Creating the service pods in kubernetes")
podName := "netserver"
config.endpointPods = config.createNetProxyPods(podName, serviceSelector)
By("Creating the service on top of the pods in kubernetes")
config.createNodePortService(serviceSelector)
By("Creating test pods")
config.createTestPods()
for _, p := range config.nodePortService.Spec.Ports {
switch p.Protocol {
case api.ProtocolUDP:
config.nodeUdpPort = int(p.NodePort)
case api.ProtocolTCP:
config.nodeHttpPort = int(p.NodePort)
default:
continue
}
}
epCount := len(config.endpointPods)
config.maxTries = epCount*epCount + testTries
config.clusterIP = config.nodePortService.Spec.ClusterIP
config.nodeIP = config.externalAddrs[0]
}
framework.ExpectNoError(framework.VerifySchedulerLatency(c))
})
// Explicitly put here, to delete namespace at the end of the test
// (after measuring latency metrics, etc.).
f := framework.NewDefaultFramework("density")
f.NamespaceDeletionTimeout = time.Hour
BeforeEach(func() {
c = f.Client
ns = f.Namespace.Name
// 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))
masters, nodes = framework.GetMasterAndWorkerNodesOrDie(c)
nodeCount = len(nodes.Items)
Expect(nodeCount).NotTo(BeZero())
if nodeCount == 30 {
f.AddonResourceConstraints = func() map[string]framework.ResourceConstraint { return density30AddonResourceVerifier(nodeCount) }()
}
nodeCpuCapacity = nodes.Items[0].Status.Allocatable.Cpu().MilliValue()
nodeMemCapacity = nodes.Items[0].Status.Allocatable.Memory().Value()
// Terminating a namespace (deleting the remaining objects from it - which
// generally means events) can affect the current run. Thus we wait for all
// terminating namespace to be finally deleted before starting this test.
err := framework.CheckTestingNSDeletedExcept(c, ns)
framework.ExpectNoError(err)
// lingering resources are left over from a previous test run.
if framework.TestContext.CleanStart {
deleted, err := framework.DeleteNamespaces(c, nil /* deleteFilter */, []string{api.NamespaceSystem, v1.NamespaceDefault})
if err != nil {
framework.Failf("Error deleting orphaned namespaces: %v", err)
}
glog.Infof("Waiting for deletion of the following namespaces: %v", deleted)
if err := framework.WaitForNamespacesDeleted(c, deleted, framework.NamespaceCleanupTimeout); err != nil {
framework.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.NodeSchedulableTimeout))
// 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
if err := framework.WaitForPodsRunningReady(c, api.NamespaceSystem, int32(framework.TestContext.MinStartupPods), podStartupTimeout, framework.ImagePullerLabels); err != nil {
framework.DumpAllNamespaceInfo(c, api.NamespaceSystem)
framework.LogFailedContainers(c, api.NamespaceSystem, framework.Logf)
framework.RunKubernetesServiceTestContainer(c, v1.NamespaceDefault)
framework.Failf("Error waiting for all pods to be running and ready: %v", err)
}
if err := framework.WaitForPodsSuccess(c, api.NamespaceSystem, framework.ImagePullerLabels, imagePrePullingTimeout); err != nil {
// There is no guarantee that the image pulling will succeed in 3 minutes
})
if err != nil {
framework.Failf("unable to create test service named [%s] %v", svc.Name, err)
}
// Clean up service
defer func() {
By("Cleaning up the service")
if err = f.Client.Services(f.Namespace.Name).Delete(svc.Name); err != nil {
framework.Failf("unable to delete svc %v: %v", svc.Name, err)
}
}()
By("Creating a webserver (pending) pod on each node")
framework.ExpectNoError(framework.WaitForAllNodesSchedulable(f.Client))
nodes := framework.GetReadySchedulableNodesOrDie(f.Client)
// This test is super expensive in terms of network usage - large services
// result in huge "Endpoint" objects and all underlying pods read them
// periodically. Moreover, all KubeProxies watch all of them.
// Thus we limit the maximum number of pods under a service.
//
// TODO: Remove this limitation once services, endpoints and data flows
// between nodes and master are better optimized.
maxNodeCount := 250
if len(nodes.Items) > maxNodeCount {
nodes.Items = nodes.Items[:maxNodeCount]
}
if len(nodes.Items) == 1 {
// in general, the test requires two nodes. But for local development, often a one node cluster