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Add DNS e2e test of NameIsDNSLabel validated Service names

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Adrian Moisey 2025-06-14 21:00:06 +02:00
parent 97c1974e9c
commit 22138ef552
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1 changed files with 30 additions and 0 deletions
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30
test/e2e/network/dns.go
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@ -25,6 +25,7 @@ import (
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/kubernetes/pkg/features"
"k8s.io/kubernetes/test/e2e/framework"
e2enode "k8s.io/kubernetes/test/e2e/framework/node"
e2epod "k8s.io/kubernetes/test/e2e/framework/pod"
@ -654,6 +655,35 @@ var _ = common.SIGDescribe("DNS", func() {
}
validateDNSResults(ctx, f, pod, append(agnhostFileNames, jessieFileNames...))
})
framework.It("should work with a service name that starts with a digit", framework.WithFeatureGate(features.RelaxedServiceNameValidation), func(ctx context.Context) {
svcName := "1kubernetes"
svc := v1.Service{
ObjectMeta: metav1.ObjectMeta{
Name: svcName,
},
Spec: v1.ServiceSpec{
Ports: []v1.ServicePort{{Port: 443}},
},
}
createServiceReportErr(ctx, f.ClientSet, f.Namespace.Name, &svc)
namesToResolve := []string{
fmt.Sprintf("%s.%s.svc.%s", svcName, f.Namespace.Name, framework.TestContext.ClusterDNSDomain),
}
agnhostProbeCmd, agnhostFileNames := createProbeCommand(namesToResolve, nil, "", "agnhost", f.Namespace.Name, framework.TestContext.ClusterDNSDomain, framework.TestContext.ClusterIsIPv6())
agnhostProber := dnsQuerier{name: "agnhost", image: imageutils.Agnhost, cmd: agnhostProbeCmd}
jessieProbeCmd, jessieFileNames := createProbeCommand(namesToResolve, nil, "", "jessie", f.Namespace.Name, framework.TestContext.ClusterDNSDomain, framework.TestContext.ClusterIsIPv6())
jessieProber := dnsQuerier{name: "jessie", image: imageutils.JessieDnsutils, cmd: jessieProbeCmd}
ginkgo.By("Running these commands on agnhost: " + agnhostProbeCmd + "\n")
ginkgo.By("Running these commands on jessie: " + jessieProbeCmd + "\n")
// Run a pod which probes DNS and exposes the results by HTTP.
ginkgo.By("creating a pod to probe DNS")
pod := createDNSPod(f.Namespace.Name, []dnsQuerier{agnhostProber, jessieProber}, dnsTestPodHostName, dnsTestServiceName)
validateDNSResults(ctx, f, pod, append(agnhostFileNames, jessieFileNames...))
})
})
var _ = common.SIGDescribe("DNS HostNetwork", func() {