mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-07-23 03:41:45 +00:00
Improving EndpointSlice tests
This adds 2 new tests covering EndpointSlices, including new coverage of the self referential Endpoints and EndpointSlices that need to be created by the API Server and the lifecycle of EndpointSlices from creation to deletion. This also removes the [feature] indicator from the name to ensure that this test will run more often now that it is enabled by default.
This commit is contained in:
Rob Scott
parent
d0183703cb
commit
c0f58ba23a
@ -34,154 +34,270 @@ import (
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"github.com/onsi/ginkgo"
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)
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var _ = SIGDescribe("EndpointSlice [Feature:EndpointSlice]", func() {
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version := "v1"
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ginkgo.Context("version "+version, func() {
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f := framework.NewDefaultFramework("endpointslice")
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var _ = SIGDescribe("EndpointSlice", func() {
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f := framework.NewDefaultFramework("endpointslice")
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var cs clientset.Interface
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var podClient *framework.PodClient
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var cs clientset.Interface
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var podClient *framework.PodClient
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ginkgo.BeforeEach(func() {
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cs = f.ClientSet
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podClient = f.PodClient()
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ginkgo.BeforeEach(func() {
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cs = f.ClientSet
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podClient = f.PodClient()
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})
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ginkgo.It("should have Endpoints and EndpointSlices pointing to API Server", func() {
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namespace := "default"
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name := "kubernetes"
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endpoints, err := cs.CoreV1().Endpoints(namespace).Get(context.TODO(), name, metav1.GetOptions{})
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framework.ExpectNoError(err)
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if len(endpoints.Subsets) != 1 {
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framework.Failf("Expected 1 subset in endpoints, got %d: %#v", len(endpoints.Subsets), endpoints.Subsets)
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}
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endpointSubset := endpoints.Subsets[0]
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endpointSlice, err := cs.DiscoveryV1beta1().EndpointSlices(namespace).Get(context.TODO(), name, metav1.GetOptions{})
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framework.ExpectNoError(err)
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if len(endpointSlice.Ports) != len(endpointSubset.Ports) {
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framework.Failf("Expected EndpointSlice to have %d ports, got %d: %#v", len(endpointSubset.Ports), len(endpointSlice.Ports), endpointSlice.Ports)
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}
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numExpectedEndpoints := len(endpointSubset.Addresses) + len(endpointSubset.NotReadyAddresses)
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if len(endpointSlice.Endpoints) != numExpectedEndpoints {
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framework.Failf("Expected EndpointSlice to have %d endpoints, got %d: %#v", numExpectedEndpoints, len(endpointSlice.Endpoints), endpointSlice.Endpoints)
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}
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})
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ginkgo.It("should create and delete Endpoints and EndpointSlices for a Service with a selector specified", func() {
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svc := createServiceReportErr(cs, f.Namespace.Name, &v1.Service{
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ObjectMeta: metav1.ObjectMeta{
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Name: "example-empty-selector",
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},
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Spec: v1.ServiceSpec{
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Selector: map[string]string{
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"does-not-match-anything": "endpoints-and-endpoint-slices-should-still-be-created",
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},
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Ports: []v1.ServicePort{{
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Name: "example",
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Port: 80,
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Protocol: v1.ProtocolTCP,
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}},
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},
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})
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// Expect Endpoints resource to be created.
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if err := wait.PollImmediate(2*time.Second, 12*time.Second, func() (bool, error) {
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_, err := cs.CoreV1().Endpoints(svc.Namespace).Get(context.TODO(), svc.Name, metav1.GetOptions{})
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if err != nil {
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return false, nil
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}
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return true, nil
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}); err != nil {
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framework.Failf("No Endpoints found for Service %s/%s: %s", svc.Namespace, svc.Name, err)
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}
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// Expect EndpointSlice resource to be created.
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var endpointSlice discoveryv1beta1.EndpointSlice
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if err := wait.PollImmediate(2*time.Second, 12*time.Second, func() (bool, error) {
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endpointSliceList, err := cs.DiscoveryV1beta1().EndpointSlices(svc.Namespace).List(context.TODO(), metav1.ListOptions{
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LabelSelector: "kubernetes.io/service-name=" + svc.Name,
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})
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if err != nil {
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return false, err
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}
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if len(endpointSliceList.Items) == 0 {
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return false, nil
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}
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endpointSlice = endpointSliceList.Items[0]
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return true, nil
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}); err != nil {
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framework.Failf("No EndpointSlice found for Service %s/%s: %s", svc.Namespace, svc.Name, err)
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}
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// Ensure EndpointSlice has expected values.
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managedBy, ok := endpointSlice.Labels[discoveryv1beta1.LabelManagedBy]
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expectedManagedBy := "endpointslice-controller.k8s.io"
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if !ok {
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framework.Failf("Expected EndpointSlice to have %s label, got %#v", discoveryv1beta1.LabelManagedBy, endpointSlice.Labels)
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} else if managedBy != expectedManagedBy {
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framework.Failf("Expected EndpointSlice to have %s label with %s value, got %s", discoveryv1beta1.LabelManagedBy, expectedManagedBy, managedBy)
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}
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if len(endpointSlice.Endpoints) != 0 {
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framework.Failf("Expected EndpointSlice to have 0 endpoints, got %d: %#v", len(endpointSlice.Endpoints), endpointSlice.Endpoints)
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}
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err := cs.CoreV1().Services(svc.Namespace).Delete(context.TODO(), svc.Name, metav1.DeleteOptions{})
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framework.ExpectNoError(err)
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// Expect Endpoints resource to be deleted when Service is.
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if err := wait.PollImmediate(2*time.Second, 12*time.Second, func() (bool, error) {
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_, err := cs.CoreV1().Endpoints(svc.Namespace).Get(context.TODO(), svc.Name, metav1.GetOptions{})
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if err != nil {
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if apierrors.IsNotFound(err) {
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return true, nil
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}
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return false, err
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}
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return false, nil
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}); err != nil {
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framework.Failf("Endpoints resource not deleted after Service %s/%s was deleted: %s", svc.Namespace, svc.Name, err)
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}
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// Expect EndpointSlice resource to be deleted when Service is.
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if err := wait.PollImmediate(2*time.Second, 12*time.Second, func() (bool, error) {
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endpointSliceList, err := cs.DiscoveryV1beta1().EndpointSlices(svc.Namespace).List(context.TODO(), metav1.ListOptions{
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LabelSelector: "kubernetes.io/service-name=" + svc.Name,
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})
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if err != nil {
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return false, err
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}
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if len(endpointSliceList.Items) == 0 {
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return true, nil
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}
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return false, nil
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}); err != nil {
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framework.Failf("EndpointSlice resource not deleted after Service %s/%s was deleted: %s", svc.Namespace, svc.Name, err)
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}
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})
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ginkgo.It("should create Endpoints and EndpointSlices for Pods matching a Service", func() {
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labelPod1 := "pod1"
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labelPod2 := "pod2"
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labelPod3 := "pod3"
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labelShared12 := "shared12"
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labelValue := "on"
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ginkgo.It("should create Endpoints and EndpointSlices for Pods matching a Service", func() {
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pod1 := podClient.Create(&v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "pod1",
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Labels: map[string]string{
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labelPod1: labelValue,
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labelShared12: labelValue,
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pod1 := podClient.Create(&v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "pod1",
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Labels: map[string]string{
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labelPod1: labelValue,
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labelShared12: labelValue,
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},
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},
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Spec: v1.PodSpec{
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Containers: []v1.Container{
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{
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Name: "container1",
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Image: imageutils.GetE2EImage(imageutils.Nginx),
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Ports: []v1.ContainerPort{{
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Name: "example-name",
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ContainerPort: int32(3000),
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}},
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},
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},
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Spec: v1.PodSpec{
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Containers: []v1.Container{
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{
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Name: "container1",
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Image: imageutils.GetE2EImage(imageutils.Nginx),
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Ports: []v1.ContainerPort{{
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Name: "example-name",
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ContainerPort: int32(3000),
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}},
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},
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},
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},
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})
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pod2 := podClient.Create(&v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "pod2",
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Labels: map[string]string{
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labelPod2: labelValue,
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labelShared12: labelValue,
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},
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},
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Spec: v1.PodSpec{
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Containers: []v1.Container{
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{
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Name: "container1",
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Image: imageutils.GetE2EImage(imageutils.Nginx),
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Ports: []v1.ContainerPort{{
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Name: "example-name",
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ContainerPort: int32(3001),
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}, {
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Name: "other-port",
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ContainerPort: int32(3002),
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}},
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},
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},
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},
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})
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svc1 := createServiceReportErr(cs, f.Namespace.Name, &v1.Service{
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ObjectMeta: metav1.ObjectMeta{
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Name: "example-int-port",
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},
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Spec: v1.ServiceSpec{
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Selector: map[string]string{labelPod1: labelValue},
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Ports: []v1.ServicePort{{
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Name: "example",
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Port: 80,
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TargetPort: intstr.FromInt(3000),
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Protocol: v1.ProtocolTCP,
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}},
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},
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})
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svc2 := createServiceReportErr(cs, f.Namespace.Name, &v1.Service{
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ObjectMeta: metav1.ObjectMeta{
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Name: "example-named-port",
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},
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Spec: v1.ServiceSpec{
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Selector: map[string]string{labelShared12: labelValue},
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Ports: []v1.ServicePort{{
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Name: "http",
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Port: 80,
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TargetPort: intstr.FromString("example-name"),
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Protocol: v1.ProtocolTCP,
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}},
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},
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})
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svc3 := createServiceReportErr(cs, f.Namespace.Name, &v1.Service{
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ObjectMeta: metav1.ObjectMeta{
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Name: "example-no-match",
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},
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Spec: v1.ServiceSpec{
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Selector: map[string]string{labelPod3: labelValue},
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Ports: []v1.ServicePort{{
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Name: "example-no-match",
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Port: 80,
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TargetPort: intstr.FromInt(8080),
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Protocol: v1.ProtocolTCP,
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}},
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},
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})
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err := wait.Poll(5*time.Second, 3*time.Minute, func() (bool, error) {
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if !podClient.PodIsReady(pod1.Name) {
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framework.Logf("Pod 1 not ready yet")
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return false, nil
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}
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if !podClient.PodIsReady(pod2.Name) {
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framework.Logf("Pod 2 not ready yet")
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return false, nil
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}
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var err error
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pod1, err = podClient.Get(context.TODO(), pod1.Name, metav1.GetOptions{})
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if err != nil {
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return false, err
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}
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pod2, err = podClient.Get(context.TODO(), pod2.Name, metav1.GetOptions{})
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if err != nil {
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return false, err
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}
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return true, nil
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})
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framework.ExpectNoError(err)
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ginkgo.By("referencing a single matching pod")
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expectEndpointsAndSlices(cs, f.Namespace.Name, svc1, []*v1.Pod{pod1}, 1, 1, false)
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ginkgo.By("referencing matching pods with named port")
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expectEndpointsAndSlices(cs, f.Namespace.Name, svc2, []*v1.Pod{pod1, pod2}, 2, 2, true)
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ginkgo.By("creating empty endpoints and endpointslices for no matching pods")
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expectEndpointsAndSlices(cs, f.Namespace.Name, svc3, []*v1.Pod{}, 0, 1, false)
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},
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})
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pod2 := podClient.Create(&v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "pod2",
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Labels: map[string]string{
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labelPod2: labelValue,
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labelShared12: labelValue,
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},
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},
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Spec: v1.PodSpec{
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Containers: []v1.Container{
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{
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Name: "container1",
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Image: imageutils.GetE2EImage(imageutils.Nginx),
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Ports: []v1.ContainerPort{{
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Name: "example-name",
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ContainerPort: int32(3001),
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}, {
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Name: "other-port",
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ContainerPort: int32(3002),
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}},
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},
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},
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},
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})
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svc1 := createServiceReportErr(cs, f.Namespace.Name, &v1.Service{
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ObjectMeta: metav1.ObjectMeta{
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Name: "example-int-port",
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},
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Spec: v1.ServiceSpec{
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Selector: map[string]string{labelPod1: labelValue},
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Ports: []v1.ServicePort{{
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Name: "example",
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Port: 80,
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TargetPort: intstr.FromInt(3000),
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Protocol: v1.ProtocolTCP,
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}},
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},
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})
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svc2 := createServiceReportErr(cs, f.Namespace.Name, &v1.Service{
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ObjectMeta: metav1.ObjectMeta{
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Name: "example-named-port",
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},
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Spec: v1.ServiceSpec{
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Selector: map[string]string{labelShared12: labelValue},
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Ports: []v1.ServicePort{{
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Name: "http",
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Port: 80,
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TargetPort: intstr.FromString("example-name"),
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Protocol: v1.ProtocolTCP,
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}},
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},
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})
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svc3 := createServiceReportErr(cs, f.Namespace.Name, &v1.Service{
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ObjectMeta: metav1.ObjectMeta{
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Name: "example-no-match",
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},
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Spec: v1.ServiceSpec{
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Selector: map[string]string{labelPod3: labelValue},
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Ports: []v1.ServicePort{{
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Name: "example-no-match",
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Port: 80,
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TargetPort: intstr.FromInt(8080),
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Protocol: v1.ProtocolTCP,
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}},
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},
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})
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err := wait.Poll(5*time.Second, 3*time.Minute, func() (bool, error) {
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if !podClient.PodIsReady(pod1.Name) {
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framework.Logf("Pod 1 not ready yet")
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return false, nil
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}
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if !podClient.PodIsReady(pod2.Name) {
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framework.Logf("Pod 2 not ready yet")
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return false, nil
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}
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var err error
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pod1, err = podClient.Get(context.TODO(), pod1.Name, metav1.GetOptions{})
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if err != nil {
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return false, err
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}
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pod2, err = podClient.Get(context.TODO(), pod2.Name, metav1.GetOptions{})
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if err != nil {
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return false, err
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}
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return true, nil
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})
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framework.ExpectNoError(err)
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ginkgo.By("referencing a single matching pod")
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expectEndpointsAndSlices(cs, f.Namespace.Name, svc1, []*v1.Pod{pod1}, 1, 1, false)
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ginkgo.By("referencing matching pods with named port")
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expectEndpointsAndSlices(cs, f.Namespace.Name, svc2, []*v1.Pod{pod1, pod2}, 2, 2, true)
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ginkgo.By("creating empty Endpoints and EndpointSlices for no matching Pods")
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expectEndpointsAndSlices(cs, f.Namespace.Name, svc3, []*v1.Pod{}, 0, 1, false)
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// TODO: Update test to cover Endpoints recreation after deletes once it
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// actually works.
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ginkgo.By("recreating EndpointSlices after they've been deleted")
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deleteEndpointSlices(cs, f.Namespace.Name, svc2)
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expectEndpointsAndSlices(cs, f.Namespace.Name, svc2, []*v1.Pod{pod1, pod2}, 2, 2, true)
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})
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})
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@ -193,27 +309,30 @@ var _ = SIGDescribe("EndpointSlice [Feature:EndpointSlice]", func() {
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// the only caller of this function.
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func expectEndpointsAndSlices(cs clientset.Interface, ns string, svc *v1.Service, pods []*v1.Pod, numSubsets, numSlices int, namedPort bool) {
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endpointSlices := []discoveryv1beta1.EndpointSlice{}
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endpoints := &v1.Endpoints{}
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err := wait.Poll(5*time.Second, 1*time.Minute, func() (bool, error) {
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endpointSlicesFound, matchingSlices := hasMatchingEndpointSlices(cs, ns, svc.Name, len(pods), numSlices)
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if !matchingSlices {
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if err := wait.PollImmediate(5*time.Second, 2*time.Minute, func() (bool, error) {
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endpointSlicesFound, hasMatchingSlices := hasMatchingEndpointSlices(cs, ns, svc.Name, len(pods), numSlices)
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if !hasMatchingSlices {
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framework.Logf("Matching EndpointSlices not found")
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return false, nil
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}
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endpointsFound, matchingEndpoints := hasMatchingEndpoints(cs, ns, svc.Name, len(pods), numSubsets)
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if !matchingEndpoints {
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framework.Logf("Matching EndpointSlices not found")
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return false, nil
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}
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endpointSlices = endpointSlicesFound
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endpoints = endpointsFound
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return true, nil
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})
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framework.ExpectNoError(err)
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}); err != nil {
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framework.Failf("Timed out waiting for matching EndpointSlices to exist: %v", err)
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}
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endpoints := &v1.Endpoints{}
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if err := wait.Poll(5*time.Second, 2*time.Minute, func() (bool, error) {
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endpointsFound, hasMatchingEndpoints := hasMatchingEndpoints(cs, ns, svc.Name, len(pods), numSubsets)
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if !hasMatchingEndpoints {
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framework.Logf("Matching Endpoints not found")
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return false, nil
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}
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endpoints = endpointsFound
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return true, nil
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}); err != nil {
|
||||
framework.Failf("Timed out waiting for matching Endpoints to exist: %v", err)
|
||||
}
|
||||
|
||||
podsByIP := map[string]*v1.Pod{}
|
||||
for _, pod := range pods {
|
||||
@ -350,20 +469,32 @@ func expectEndpointsAndSlices(cs clientset.Interface, ns string, svc *v1.Service
|
||||
}
|
||||
}
|
||||
|
||||
// deleteEndpointSlices deletes EndpointSlices for the specified Service.
|
||||
func deleteEndpointSlices(cs clientset.Interface, ns string, svc *v1.Service) {
|
||||
listOptions := metav1.ListOptions{LabelSelector: fmt.Sprintf("%s=%s", discoveryv1beta1.LabelServiceName, svc.Name)}
|
||||
esList, err := cs.DiscoveryV1beta1().EndpointSlices(ns).List(context.TODO(), listOptions)
|
||||
framework.ExpectNoError(err, "Error fetching EndpointSlices for %s/%s Service", ns, svc.Name)
|
||||
|
||||
for _, endpointSlice := range esList.Items {
|
||||
err := cs.DiscoveryV1beta1().EndpointSlices(ns).Delete(context.TODO(), endpointSlice.Name, metav1.DeleteOptions{})
|
||||
framework.ExpectNoError(err, "Error deleting %s/%s EndpointSlice", ns, endpointSlice.Name)
|
||||
}
|
||||
}
|
||||
|
||||
// hasMatchingEndpointSlices returns any EndpointSlices that match the
|
||||
// conditions along with a boolean indicating if all the conditions have been
|
||||
// met.
|
||||
func hasMatchingEndpointSlices(cs clientset.Interface, ns, svcName string, numEndpoints, numSlices int) ([]discoveryv1beta1.EndpointSlice, bool) {
|
||||
listOptions := metav1.ListOptions{LabelSelector: fmt.Sprintf("%s=%s", discoveryv1beta1.LabelServiceName, svcName)}
|
||||
esList, err := cs.DiscoveryV1beta1().EndpointSlices(ns).List(context.TODO(), listOptions)
|
||||
framework.ExpectNoError(err, "Error fetching EndpointSlice for %s/%s Service", ns, svcName)
|
||||
framework.ExpectNoError(err, "Error fetching EndpointSlice for Service %s/%s", ns, svcName)
|
||||
|
||||
if len(esList.Items) == 0 {
|
||||
framework.Logf("EndpointSlice for %s/%s Service not found", ns, svcName)
|
||||
framework.Logf("EndpointSlice for Service %s/%s not found", ns, svcName)
|
||||
return []discoveryv1beta1.EndpointSlice{}, false
|
||||
}
|
||||
if len(esList.Items) != numSlices {
|
||||
framework.Logf("Expected %d EndpointSlices for %s/%s Service, got %d", numSlices, ns, svcName, len(esList.Items))
|
||||
framework.Logf("Expected %d EndpointSlices for Service %s/%s, got %d", numSlices, ns, svcName, len(esList.Items))
|
||||
return []discoveryv1beta1.EndpointSlice{}, false
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user