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Remove watching Endpoints of Headless Services

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Signed-off-by: Ricardo Pchevuzinske Katz <ricardo.katz@serpro.gov.br>
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Ricardo Pchevuzinske Katz 2019-08-25 17:27:08 -03:00
parent e389237171
commit 6c30d23e6c
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1 changed files with 62 additions and 0 deletions
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62
test/e2e/network/service.go
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@ -1865,6 +1865,68 @@ var _ = SIGDescribe("Services", func() {
framework.ExpectNoError(e2eservice.VerifyServeHostnameServiceDown(cs, host, svcDisabledIP, servicePort))
})
ginkgo.It("should implement service.kubernetes.io/headless", func() {
// this test uses e2essh.NodeSSHHosts that does not work if a Node only reports LegacyHostIP
framework.SkipUnlessProviderIs(framework.ProvidersWithSSH...)
// this test does not work if the Node does not support SSH Key
framework.SkipUnlessSSHKeyPresent()
ns := f.Namespace.Name
numPods, servicePort := 3, defaultServeHostnameServicePort
serviceHeadlessLabels := map[string]string{v1.IsHeadlessService: ""}
// We will create 2 services to test creating services in both states and also dynamic updates
// svcHeadless: Created with the label, will always be disabled. We create this early and
// test again late to make sure it never becomes available.
// svcHeadlessToggled: Created without the label then the label is toggled verifying reachability at each step.
ginkgo.By("creating service-headless in namespace " + ns)
svcHeadless := getServeHostnameService("service-headless")
svcHeadless.ObjectMeta.Labels = serviceHeadlessLabels
// This should be improved, as we do not want a Headlesss Service to contain an IP...
_, svcHeadlessIP, err := e2eservice.StartServeHostnameService(cs, svcHeadless, ns, numPods)
framework.ExpectNoError(err, "failed to create replication controller with headless service: %s in the namespace: %s", svcHeadlessIP, ns)
ginkgo.By("creating service in namespace " + ns)
svcHeadlessToggled := getServeHostnameService("service-headless-toggled")
podHeadlessToggledNames, svcHeadlessToggledIP, err := e2eservice.StartServeHostnameService(cs, svcHeadlessToggled, ns, numPods)
framework.ExpectNoError(err, "failed to create replication controller with service: %s in the namespace: %s", svcHeadlessToggledIP, ns)
jig := e2eservice.NewTestJig(cs, svcHeadlessToggled.ObjectMeta.Name)
hosts, err := e2essh.NodeSSHHosts(cs)
framework.ExpectNoError(err, "failed to find external/internal IPs for every node")
if len(hosts) == 0 {
e2elog.Failf("No ssh-able nodes")
}
host := hosts[0]
ginkgo.By("verifying service is up")
framework.ExpectNoError(e2eservice.VerifyServeHostnameServiceUp(cs, ns, host, podHeadlessToggledNames, svcHeadlessToggledIP, servicePort))
ginkgo.By("verifying service-headless is not up")
framework.ExpectNoError(e2eservice.VerifyServeHostnameServiceDown(cs, host, svcHeadlessIP, servicePort))
ginkgo.By("adding service.kubernetes.io/headless label")
jig.UpdateServiceOrFail(ns, svcHeadlessToggled.ObjectMeta.Name, func(svc *v1.Service) {
svc.ObjectMeta.Labels = serviceHeadlessLabels
})
ginkgo.By("verifying service is not up")
framework.ExpectNoError(e2eservice.VerifyServeHostnameServiceDown(cs, host, svcHeadlessToggledIP, servicePort))
ginkgo.By("removing service.kubernetes.io/headless annotation")
jig.UpdateServiceOrFail(ns, svcHeadlessToggled.ObjectMeta.Name, func(svc *v1.Service) {
svc.ObjectMeta.Labels = nil
})
ginkgo.By("verifying service is up")
framework.ExpectNoError(e2eservice.VerifyServeHostnameServiceUp(cs, ns, host, podHeadlessToggledNames, svcHeadlessToggledIP, servicePort))
ginkgo.By("verifying service-headless is still not up")
framework.ExpectNoError(e2eservice.VerifyServeHostnameServiceDown(cs, host, svcHeadlessIP, servicePort))
})
ginkgo.It("should be rejected when no endpoints exist", func() {
namespace := f.Namespace.Name
serviceName := "no-pods"