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storage e2e: fix volume metric test for generic ephemeral volume
This is a fix for the new test case from https://github.com/kubernetes/kubernetes/pull/105636 which had to be merged without prior testing due to not having a cluster to test on and no pull job which runs these tests. https://testgrid.k8s.io/sig-storage-kubernetes#gce-serial then showed a failure. The fix is simple: in the ephemeral case, the PVC name isn't set in advance in pvc.Name and instead must be computed. The fix now was tested on a kubetest cluster in GCE. Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
This commit is contained in:
Patrick Ohly
parent
4568cdada2
commit
7538d089d5
@ -30,6 +30,7 @@ import (
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"k8s.io/apimachinery/pkg/util/wait"
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clientset "k8s.io/client-go/kubernetes"
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"k8s.io/component-base/metrics/testutil"
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"k8s.io/component-helpers/storage/ephemeral"
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kubeletmetrics "k8s.io/kubernetes/pkg/kubelet/metrics"
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"k8s.io/kubernetes/test/e2e/framework"
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e2emetrics "k8s.io/kubernetes/test/e2e/framework/metrics"
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@ -211,14 +212,15 @@ var _ = utils.SIGDescribe("[Serial] Volume metrics", func() {
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verifyMetricCount(storageOpMetrics, updatedStorageMetrics, "volume_provision", true)
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}
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filesystemMode := func(ephemeral bool) {
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if !ephemeral {
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filesystemMode := func(isEphemeral bool) {
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pvcName := pvc.Name
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if !isEphemeral {
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pvc, err = c.CoreV1().PersistentVolumeClaims(pvc.Namespace).Create(context.TODO(), pvc, metav1.CreateOptions{})
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framework.ExpectNoError(err)
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framework.ExpectNotEqual(pvc, nil)
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}
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pod := makePod(ns, pvc, ephemeral)
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pod := makePod(ns, pvc, isEphemeral)
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pod, err = c.CoreV1().Pods(ns).Create(context.TODO(), pod, metav1.CreateOptions{})
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framework.ExpectNoError(err)
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@ -228,6 +230,11 @@ var _ = utils.SIGDescribe("[Serial] Volume metrics", func() {
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pod, err = c.CoreV1().Pods(ns).Get(context.TODO(), pod.Name, metav1.GetOptions{})
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framework.ExpectNoError(err)
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if isEphemeral {
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pvcName = ephemeral.VolumeClaimName(pod, &pod.Spec.Volumes[0])
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}
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pvcNamespace := pod.Namespace
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// Verify volume stat metrics were collected for the referenced PVC
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volumeStatKeys := []string{
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kubeletmetrics.VolumeStatsUsedBytesKey,
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@ -251,31 +258,31 @@ var _ = utils.SIGDescribe("[Serial] Volume metrics", func() {
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framework.Logf("Error fetching kubelet metrics")
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return false, err
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}
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if !findVolumeStatMetric(kubeletKeyName, pvc.Namespace, pvc.Name, kubeMetrics) {
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if !findVolumeStatMetric(kubeletKeyName, pvcNamespace, pvcName, kubeMetrics) {
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return false, nil
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}
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return true, nil
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})
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framework.ExpectNoError(waitErr, "Unable to find metric %s for PVC %s/%s", kubeletKeyName, pvc.Namespace, pvc.Name)
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framework.ExpectNoError(waitErr, "Unable to find metric %s for PVC %s/%s", kubeletKeyName, pvcNamespace, pvcName)
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for _, key := range volumeStatKeys {
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kubeletKeyName := fmt.Sprintf("%s_%s", kubeletmetrics.KubeletSubsystem, key)
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found := findVolumeStatMetric(kubeletKeyName, pvc.Namespace, pvc.Name, kubeMetrics)
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framework.ExpectEqual(found, true, "PVC %s, Namespace %s not found for %s", pvc.Name, pvc.Namespace, kubeletKeyName)
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found := findVolumeStatMetric(kubeletKeyName, pvcNamespace, pvcName, kubeMetrics)
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framework.ExpectEqual(found, true, "PVC %s, Namespace %s not found for %s", pvcName, pvcNamespace, kubeletKeyName)
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}
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framework.Logf("Deleting pod %q/%q", pod.Namespace, pod.Name)
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framework.ExpectNoError(e2epod.DeletePodWithWait(c, pod))
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}
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blockmode := func(ephemeral bool) {
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if !ephemeral {
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blockmode := func(isEphemeral bool) {
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if !isEphemeral {
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pvcBlock, err = c.CoreV1().PersistentVolumeClaims(pvcBlock.Namespace).Create(context.TODO(), pvcBlock, metav1.CreateOptions{})
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framework.ExpectNoError(err)
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framework.ExpectNotEqual(pvcBlock, nil)
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}
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pod := makePod(ns, pvcBlock, ephemeral)
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pod := makePod(ns, pvcBlock, isEphemeral)
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pod.Spec.Containers[0].VolumeDevices = []v1.VolumeDevice{{
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Name: pod.Spec.Volumes[0].Name,
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DevicePath: "/mnt/" + pvcBlock.Name,
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@ -326,14 +333,14 @@ var _ = utils.SIGDescribe("[Serial] Volume metrics", func() {
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framework.ExpectNoError(e2epod.DeletePodWithWait(c, pod))
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}
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totalTime := func(ephemeral bool) {
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if !ephemeral {
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totalTime := func(isEphemeral bool) {
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if !isEphemeral {
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pvc, err = c.CoreV1().PersistentVolumeClaims(pvc.Namespace).Create(context.TODO(), pvc, metav1.CreateOptions{})
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framework.ExpectNoError(err)
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framework.ExpectNotEqual(pvc, nil)
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}
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pod := makePod(ns, pvc, ephemeral)
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pod := makePod(ns, pvc, isEphemeral)
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pod, err = c.CoreV1().Pods(ns).Create(context.TODO(), pod, metav1.CreateOptions{})
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framework.ExpectNoError(err)
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@ -357,14 +364,14 @@ var _ = utils.SIGDescribe("[Serial] Volume metrics", func() {
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framework.ExpectNoError(e2epod.DeletePodWithWait(c, pod))
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}
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volumeManager := func(ephemeral bool) {
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if !ephemeral {
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volumeManager := func(isEphemeral bool) {
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if !isEphemeral {
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pvc, err = c.CoreV1().PersistentVolumeClaims(pvc.Namespace).Create(context.TODO(), pvc, metav1.CreateOptions{})
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framework.ExpectNoError(err)
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framework.ExpectNotEqual(pvc, nil)
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}
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pod := makePod(ns, pvc, ephemeral)
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pod := makePod(ns, pvc, isEphemeral)
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pod, err = c.CoreV1().Pods(ns).Create(context.TODO(), pod, metav1.CreateOptions{})
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framework.ExpectNoError(err)
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@ -387,14 +394,14 @@ var _ = utils.SIGDescribe("[Serial] Volume metrics", func() {
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framework.ExpectNoError(e2epod.DeletePodWithWait(c, pod))
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}
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adController := func(ephemeral bool) {
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if !ephemeral {
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adController := func(isEphemeral bool) {
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if !isEphemeral {
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pvc, err = c.CoreV1().PersistentVolumeClaims(pvc.Namespace).Create(context.TODO(), pvc, metav1.CreateOptions{})
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framework.ExpectNoError(err)
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framework.ExpectNotEqual(pvc, nil)
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}
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pod := makePod(ns, pvc, ephemeral)
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pod := makePod(ns, pvc, isEphemeral)
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// Get metrics
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controllerMetrics, err := metricsGrabber.GrabFromControllerManager()
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@ -447,27 +454,27 @@ var _ = utils.SIGDescribe("[Serial] Volume metrics", func() {
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framework.ExpectNoError(e2epod.DeletePodWithWait(c, pod))
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}
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testAll := func(ephemeral bool) {
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testAll := func(isEphemeral bool) {
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ginkgo.It("should create prometheus metrics for volume provisioning and attach/detach", func() {
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provisioning(ephemeral)
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provisioning(isEphemeral)
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})
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ginkgo.It("should create prometheus metrics for volume provisioning errors [Slow]", func() {
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provisioningError(ephemeral)
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provisioningError(isEphemeral)
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})
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ginkgo.It("should create volume metrics with the correct FilesystemMode PVC ref", func() {
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filesystemMode(ephemeral)
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filesystemMode(isEphemeral)
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})
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ginkgo.It("should create volume metrics with the correct BlockMode PVC ref", func() {
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blockmode(ephemeral)
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blockmode(isEphemeral)
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})
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ginkgo.It("should create metrics for total time taken in volume operations in P/V Controller", func() {
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totalTime(ephemeral)
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totalTime(isEphemeral)
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})
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ginkgo.It("should create volume metrics in Volume Manager", func() {
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volumeManager(ephemeral)
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volumeManager(isEphemeral)
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})
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ginkgo.It("should create metrics for total number of volumes in A/D Controller", func() {
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adController(ephemeral)
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adController(isEphemeral)
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})
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}
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@ -873,10 +880,10 @@ func waitForADControllerStatesMetrics(metricsGrabber *e2emetrics.Grabber, metric
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// makePod creates a pod which either references the PVC or creates it via a
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// generic ephemeral volume claim template.
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func makePod(ns string, pvc *v1.PersistentVolumeClaim, ephemeral bool) *v1.Pod {
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func makePod(ns string, pvc *v1.PersistentVolumeClaim, isEphemeral bool) *v1.Pod {
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claims := []*v1.PersistentVolumeClaim{pvc}
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pod := e2epod.MakePod(ns, nil, claims, false, "")
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if ephemeral {
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if isEphemeral {
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volSrc := pod.Spec.Volumes[0]
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volSrc.PersistentVolumeClaim = nil
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volSrc.Ephemeral = &v1.EphemeralVolumeSource{
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