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Merge pull request #81955 from danwinship/add-hairpin-test

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e2e/network: add service hairpin test
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Kubernetes Prow Robot 2019-08-28 08:56:16 -07:00 committed by GitHub
commit d7ecc85239
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1 changed files with 27 additions and 0 deletions
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27
test/e2e/network/service.go
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@ -347,6 +347,33 @@ var _ = SIGDescribe("Services", func() {
}
})
ginkgo.It("should allow pods to hairpin back to themselves through services", func() {
serviceName := "hairpin-test"
ns := f.Namespace.Name
ginkgo.By("creating a TCP service " + serviceName + " with type=ClusterIP in namespace " + ns)
jig := e2eservice.NewTestJig(cs, serviceName)
servicePort := 8080
svc := jig.CreateTCPServiceWithPort(ns, nil, int32(servicePort))
jig.SanityCheckService(svc, v1.ServiceTypeClusterIP)
serviceIP := svc.Spec.ClusterIP
framework.Logf("hairpin-test cluster ip: %s", serviceIP)
ginkgo.By("creating a client/server pod")
serverPodName := "hairpin"
podTemplate := f.NewAgnhostPod(serverPodName, "netexec", "--http-port", strconv.Itoa(servicePort))
podTemplate.Labels = jig.Labels
pod, err := cs.CoreV1().Pods(ns).Create(podTemplate)
framework.ExpectNoError(err)
ginkgo.By("waiting for the service to expose an endpoint")
err = e2eendpoints.ValidateEndpointsPorts(cs, ns, serviceName, e2eendpoints.PortsByPodName{serverPodName: {servicePort}})
framework.ExpectNoError(err, "failed to validate endpoints for service %s in namespace: %s", serviceName, ns)
ginkgo.By("Checking if the pod can reach itself")
jig.CheckServiceReachability(ns, svc, pod)
})
ginkgo.It("should be able to up and down services", func() {
// TODO: use the ServiceTestJig here
// this test uses e2essh.NodeSSHHosts that does not work if a Node only reports LegacyHostIP