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e2e support Services with multiple EndpointSlices
A Service can use multiple EndpointSlices for its backend, when using custom Endpoint Slices, the data plane should forward traffic to any of the endpoints in the Endpointslices that belong to the Service. Change-Id: I80b42522bf6ab443050697a29b94d8245943526f
This commit is contained in:
Antonio Ojea
parent
1692de5f17
commit
4482d1c2f4
@ -20,6 +20,7 @@ import (
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"context"
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"encoding/json"
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"fmt"
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"net"
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"time"
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v1 "k8s.io/api/core/v1"
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@ -38,6 +39,7 @@ import (
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"k8s.io/kubernetes/test/e2e/network/common"
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imageutils "k8s.io/kubernetes/test/utils/image"
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admissionapi "k8s.io/pod-security-admission/api"
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"k8s.io/utils/pointer"
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"github.com/onsi/ginkgo/v2"
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)
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@ -524,6 +526,209 @@ var _ = common.SIGDescribe("EndpointSlice", func() {
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framework.ExpectNoError(err)
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framework.ExpectEqual(len(epsList.Items), 0, "filtered list should have 0 items")
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})
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ginkgo.It("should support a Service with multiple ports specified in multiple EndpointSlices", func(ctx context.Context) {
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ns := f.Namespace.Name
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svc := createServiceReportErr(ctx, cs, f.Namespace.Name, &v1.Service{
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ObjectMeta: metav1.ObjectMeta{
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Name: "example-custom-endpoints",
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},
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Spec: v1.ServiceSpec{
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Ports: []v1.ServicePort{
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{
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Name: "port80",
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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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Name: "port81",
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Port: 81,
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Protocol: v1.ProtocolTCP,
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},
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},
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},
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})
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// Add a backend pod to the service in the other node
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port8090 := []v1.ContainerPort{
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{
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ContainerPort: 8090,
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Protocol: v1.ProtocolTCP,
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},
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}
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port9090 := []v1.ContainerPort{
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{
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ContainerPort: 9090,
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Protocol: v1.ProtocolTCP,
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},
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}
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serverPod := e2epod.NewAgnhostPodFromContainers(
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"", "pod-handle-http-request", nil,
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e2epod.NewAgnhostContainer("container-handle-8090-request", nil, port8090, "netexec", "--http-port", "8090", "--udp-port", "-1"),
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e2epod.NewAgnhostContainer("container-handle-9090-request", nil, port9090, "netexec", "--http-port", "9090", "--udp-port", "-1"),
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)
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pod := e2epod.NewPodClient(f).CreateSync(ctx, serverPod)
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if pod.Status.PodIP == "" {
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framework.Failf("PodIP not assigned for pod %s", pod.Name)
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}
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addressType := discoveryv1.AddressTypeIPv4
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if framework.TestContext.ClusterIsIPv6() {
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addressType = discoveryv1.AddressTypeIPv6
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}
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// create custom endpoint slices
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tcpProtocol := v1.ProtocolTCP
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epsTemplate := &discoveryv1.EndpointSlice{
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ObjectMeta: metav1.ObjectMeta{GenerateName: "e2e-custom-slice",
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Labels: map[string]string{
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discoveryv1.LabelServiceName: svc.Name,
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discoveryv1.LabelManagedBy: "e2e-test" + ns,
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}},
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AddressType: addressType,
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Endpoints: []discoveryv1.Endpoint{
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{Addresses: []string{pod.Status.PodIP}},
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},
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}
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ginkgo.By("creating")
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eps1 := epsTemplate.DeepCopy()
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eps1.Ports = []discoveryv1.EndpointPort{{
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Name: pointer.String("port80"),
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Port: pointer.Int32(8090),
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Protocol: &tcpProtocol,
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}}
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_, err := f.ClientSet.DiscoveryV1().EndpointSlices(ns).Create(ctx, eps1, metav1.CreateOptions{})
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framework.ExpectNoError(err)
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eps2 := epsTemplate.DeepCopy()
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eps2.Ports = []discoveryv1.EndpointPort{{
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Name: pointer.String("port81"),
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Port: pointer.Int32(9090),
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Protocol: &tcpProtocol,
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}}
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_, err = f.ClientSet.DiscoveryV1().EndpointSlices(ns).Create(ctx, eps2, metav1.CreateOptions{})
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framework.ExpectNoError(err)
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// connect to the service must work
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ginkgo.By("Creating a pause pods that will try to connect to the webserver")
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pausePod0 := e2epod.NewAgnhostPod(ns, "pause-pod-0", nil, nil, nil)
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e2epod.NewPodClient(f).CreateSync(ctx, pausePod0)
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dest1 := net.JoinHostPort(svc.Spec.ClusterIP, "80")
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dest2 := net.JoinHostPort(svc.Spec.ClusterIP, "81")
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execHostnameTest(*pausePod0, dest1, serverPod.Name)
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execHostnameTest(*pausePod0, dest2, serverPod.Name)
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})
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ginkgo.It("should support a Service with multiple endpoint IPs specified in multiple EndpointSlices", func(ctx context.Context) {
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ns := f.Namespace.Name
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svc := createServiceReportErr(ctx, cs, f.Namespace.Name, &v1.Service{
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ObjectMeta: metav1.ObjectMeta{
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Name: "example-custom-endpoints",
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},
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Spec: v1.ServiceSpec{
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Ports: []v1.ServicePort{
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{
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Name: "port80",
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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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Name: "port81",
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Port: 81,
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Protocol: v1.ProtocolTCP,
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},
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},
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},
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})
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// Add a backend pod to the service in the other node
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port8090 := []v1.ContainerPort{
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{
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ContainerPort: 8090,
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Protocol: v1.ProtocolTCP,
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},
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}
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serverPod1 := e2epod.NewAgnhostPodFromContainers(
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"", "pod1-handle-http-request", nil,
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e2epod.NewAgnhostContainer("container-handle-8090-request", nil, port8090, "netexec", "--http-port", "8090", "--udp-port", "-1"),
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)
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pod1 := e2epod.NewPodClient(f).CreateSync(ctx, serverPod1)
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if pod1.Status.PodIP == "" {
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framework.Failf("PodIP not assigned for pod %s", pod1.Name)
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}
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serverPod2 := e2epod.NewAgnhostPodFromContainers(
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"", "pod2-handle-http-request", nil,
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e2epod.NewAgnhostContainer("container-handle-8090-request", nil, port8090, "netexec", "--http-port", "8090", "--udp-port", "-1"),
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)
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pod2 := e2epod.NewPodClient(f).CreateSync(ctx, serverPod2)
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if pod2.Status.PodIP == "" {
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framework.Failf("PodIP not assigned for pod %s", pod2.Name)
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}
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addressType := discoveryv1.AddressTypeIPv4
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if framework.TestContext.ClusterIsIPv6() {
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addressType = discoveryv1.AddressTypeIPv6
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}
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// create custom endpoint slices
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tcpProtocol := v1.ProtocolTCP
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epsTemplate := &discoveryv1.EndpointSlice{
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ObjectMeta: metav1.ObjectMeta{GenerateName: "e2e-custom-slice",
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Labels: map[string]string{
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discoveryv1.LabelServiceName: svc.Name,
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discoveryv1.LabelManagedBy: "e2e-test" + ns,
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}},
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AddressType: addressType,
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}
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ginkgo.By("creating")
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eps1 := epsTemplate.DeepCopy()
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eps1.Endpoints = []discoveryv1.Endpoint{
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{Addresses: []string{pod1.Status.PodIP}},
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}
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eps1.Ports = []discoveryv1.EndpointPort{{
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Name: pointer.String("port80"),
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Port: pointer.Int32(8090),
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Protocol: &tcpProtocol,
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}}
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_, err := f.ClientSet.DiscoveryV1().EndpointSlices(ns).Create(context.TODO(), eps1, metav1.CreateOptions{})
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framework.ExpectNoError(err)
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eps2 := epsTemplate.DeepCopy()
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eps2.Endpoints = []discoveryv1.Endpoint{
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{Addresses: []string{pod2.Status.PodIP}},
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}
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eps2.Ports = []discoveryv1.EndpointPort{{
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Name: pointer.String("port81"),
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Port: pointer.Int32(8090),
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Protocol: &tcpProtocol,
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}}
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_, err = f.ClientSet.DiscoveryV1().EndpointSlices(ns).Create(context.TODO(), eps2, metav1.CreateOptions{})
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framework.ExpectNoError(err)
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// connect to the service must work
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ginkgo.By("Creating a pause pods that will try to connect to the webserver")
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pausePod0 := e2epod.NewAgnhostPod(ns, "pause-pod-0", nil, nil, nil)
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e2epod.NewPodClient(f).CreateSync(ctx, pausePod0)
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dest1 := net.JoinHostPort(svc.Spec.ClusterIP, "80")
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dest2 := net.JoinHostPort(svc.Spec.ClusterIP, "81")
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execHostnameTest(*pausePod0, dest1, serverPod1.Name)
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execHostnameTest(*pausePod0, dest2, serverPod2.Name)
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})
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})
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// expectEndpointsAndSlices verifies that Endpoints and EndpointSlices exist for
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