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Merge pull request #124428 from yashsingh74/yashsingh/hostname-test

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Added a testcase to check hostname and hostNetwork
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Kubernetes Prow Robot 2024-05-07 20:42:54 -07:00 committed by GitHub
commit 74ae6d1b4b
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1 changed files with 49 additions and 0 deletions
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49
test/e2e/network/dns.go
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@ -26,7 +26,9 @@ import (
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/kubernetes/test/e2e/framework"
e2enode "k8s.io/kubernetes/test/e2e/framework/node"
e2epod "k8s.io/kubernetes/test/e2e/framework/pod"
e2eoutput "k8s.io/kubernetes/test/e2e/framework/pod/output"
e2eservice "k8s.io/kubernetes/test/e2e/framework/service"
e2eskipper "k8s.io/kubernetes/test/e2e/framework/skipper"
"k8s.io/kubernetes/test/e2e/network/common"
@ -642,4 +644,51 @@ var _ = common.SIGDescribe("DNS HostNetwork", func() {
validateDNSResults(ctx, f, pod, append(wheezyFileNames, jessieFileNames...))
})
// https://issues.k8s.io/67019
ginkgo.It("spec.Hostname field is not silently ignored and is used for hostname for a Pod", func(ctx context.Context) {
ginkgo.By("Creating a pod by setting a hostname")
testAgnhostPod := e2epod.NewAgnhostPod(f.Namespace.Name, "test-dns-hostname", nil, nil, nil)
testAgnhostPod.Spec.Hostname = dnsTestPodHostName
testAgnhostPod, err := f.ClientSet.CoreV1().Pods(f.Namespace.Name).Create(ctx, testAgnhostPod, metav1.CreateOptions{})
framework.ExpectNoError(err, "failed to created pod: %s", testAgnhostPod.Name)
err = e2epod.WaitTimeoutForPodReadyInNamespace(ctx, f.ClientSet, testAgnhostPod.Name, f.Namespace.Name, framework.PodStartTimeout)
framework.ExpectNoError(err, "failed to wait for pod %s to be running", testAgnhostPod.Name)
stdout, err := e2eoutput.RunHostCmd(testAgnhostPod.Namespace, testAgnhostPod.Name, "hostname")
framework.ExpectNoError(err, "failed to run command hostname: %s", stdout)
hostname := strings.TrimSpace(stdout)
if testAgnhostPod.Spec.Hostname != hostname {
framework.Failf("expected hostname: %s, got: %s", testAgnhostPod.Spec.Hostname, hostname)
}
})
// https://issues.k8s.io/67019
ginkgo.It("spec.Hostname field is silently ignored and the node hostname is used when hostNetwork is set to true for a Pod", func(ctx context.Context) {
ginkgo.By("Creating a pod by setting a hostNetwork to true")
testAgnhostPod := e2epod.NewAgnhostPod(f.Namespace.Name, "test-dns-hostnetwork", nil, nil, nil)
testAgnhostPod.Spec.Hostname = dnsTestPodHostName
testAgnhostPod.Spec.HostNetwork = true
node, err := e2enode.GetRandomReadySchedulableNode(ctx, f.ClientSet)
framework.ExpectNoError(err)
nodeSelection := e2epod.NodeSelection{}
e2epod.SetAffinity(&nodeSelection, node.Name)
e2epod.SetNodeSelection(&testAgnhostPod.Spec, nodeSelection)
testAgnhostPod, err = f.ClientSet.CoreV1().Pods(f.Namespace.Name).Create(ctx, testAgnhostPod, metav1.CreateOptions{})
framework.ExpectNoError(err, "failed to created pod: %s", testAgnhostPod.Name)
err = e2epod.WaitTimeoutForPodReadyInNamespace(ctx, f.ClientSet, testAgnhostPod.Name, f.Namespace.Name, framework.PodStartTimeout)
framework.ExpectNoError(err, "failed to wait for pod %s to be running", testAgnhostPod.Name)
stdout, err := e2eoutput.RunHostCmd(testAgnhostPod.Namespace, testAgnhostPod.Name, "hostname")
framework.ExpectNoError(err, "failed to run command hostname: %s", stdout)
hostname := strings.TrimSpace(stdout)
if node.Name != hostname {
framework.Failf("expected hostname: %s, got: %s", node.Name, hostname)
}
})
})