mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-08-05 18:24:07 +00:00
Add integration test for volume controller startup.
Tests #28002 with real etcd (unit tests have a fake one with different behavior).
This commit is contained in:
Jan Safranek
parent
0a6561f5e9
commit
36c607b1b0
@ -75,8 +75,8 @@ func getObjectCount() int {
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return objectCount
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}
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func getSyncPeriod() time.Duration {
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period := defaultSyncPeriod
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func getSyncPeriod(syncPeriod time.Duration) time.Duration {
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period := syncPeriod
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if s := os.Getenv("KUBE_INTEGRATION_PV_SYNC_PERIOD"); s != "" {
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var err error
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period, err = time.ParseDuration(s)
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@ -112,7 +112,7 @@ func TestPersistentVolumeRecycler(t *testing.T) {
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ns := framework.CreateTestingNamespace("pv-recycler", s, t)
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defer framework.DeleteTestingNamespace(ns, s, t)
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testClient, ctrl, watchPV, watchPVC := createClients(ns, t, s)
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testClient, ctrl, watchPV, watchPVC := createClients(ns, t, s, defaultSyncPeriod)
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defer watchPV.Stop()
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defer watchPVC.Stop()
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@ -165,7 +165,7 @@ func TestPersistentVolumeDeleter(t *testing.T) {
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ns := framework.CreateTestingNamespace("pv-deleter", s, t)
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defer framework.DeleteTestingNamespace(ns, s, t)
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testClient, ctrl, watchPV, watchPVC := createClients(ns, t, s)
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testClient, ctrl, watchPV, watchPVC := createClients(ns, t, s, defaultSyncPeriod)
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defer watchPV.Stop()
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defer watchPVC.Stop()
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@ -223,7 +223,7 @@ func TestPersistentVolumeBindRace(t *testing.T) {
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ns := framework.CreateTestingNamespace("pv-bind-race", s, t)
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defer framework.DeleteTestingNamespace(ns, s, t)
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testClient, ctrl, watchPV, watchPVC := createClients(ns, t, s)
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testClient, ctrl, watchPV, watchPVC := createClients(ns, t, s, defaultSyncPeriod)
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defer watchPV.Stop()
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defer watchPVC.Stop()
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@ -293,7 +293,7 @@ func TestPersistentVolumeClaimLabelSelector(t *testing.T) {
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ns := framework.CreateTestingNamespace("pvc-label-selector", s, t)
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defer framework.DeleteTestingNamespace(ns, s, t)
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testClient, controller, watchPV, watchPVC := createClients(ns, t, s)
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testClient, controller, watchPV, watchPVC := createClients(ns, t, s, defaultSyncPeriod)
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defer watchPV.Stop()
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defer watchPVC.Stop()
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@ -372,7 +372,7 @@ func TestPersistentVolumeClaimLabelSelectorMatchExpressions(t *testing.T) {
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ns := framework.CreateTestingNamespace("pvc-match-expresssions", s, t)
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defer framework.DeleteTestingNamespace(ns, s, t)
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testClient, controller, watchPV, watchPVC := createClients(ns, t, s)
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testClient, controller, watchPV, watchPVC := createClients(ns, t, s, defaultSyncPeriod)
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defer watchPV.Stop()
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defer watchPVC.Stop()
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@ -470,7 +470,7 @@ func TestPersistentVolumeMultiPVs(t *testing.T) {
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ns := framework.CreateTestingNamespace("multi-pvs", s, t)
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defer framework.DeleteTestingNamespace(ns, s, t)
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testClient, controller, watchPV, watchPVC := createClients(ns, t, s)
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testClient, controller, watchPV, watchPVC := createClients(ns, t, s, defaultSyncPeriod)
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defer watchPV.Stop()
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defer watchPVC.Stop()
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@ -558,7 +558,7 @@ func TestPersistentVolumeMultiPVsPVCs(t *testing.T) {
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ns := framework.CreateTestingNamespace("multi-pvs-pvcs", s, t)
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defer framework.DeleteTestingNamespace(ns, s, t)
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testClient, binder, watchPV, watchPVC := createClients(ns, t, s)
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testClient, binder, watchPV, watchPVC := createClients(ns, t, s, defaultSyncPeriod)
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defer watchPV.Stop()
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defer watchPVC.Stop()
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@ -634,6 +634,133 @@ func TestPersistentVolumeMultiPVsPVCs(t *testing.T) {
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testSleep()
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}
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// TestPersistentVolumeControllerStartup tests startup of the controller.
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// The controller should not unbind any volumes when it starts.
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func TestPersistentVolumeControllerStartup(t *testing.T) {
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_, s := framework.RunAMaster(nil)
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defer s.Close()
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ns := framework.CreateTestingNamespace("controller-startup", s, t)
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defer framework.DeleteTestingNamespace(ns, s, t)
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objCount := getObjectCount()
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const shortSyncPeriod = 2 * time.Second
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syncPeriod := getSyncPeriod(shortSyncPeriod)
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testClient, binder, watchPV, watchPVC := createClients(ns, t, s, shortSyncPeriod)
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defer watchPV.Stop()
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defer watchPVC.Stop()
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// Create *bound* volumes and PVCs
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pvs := make([]*api.PersistentVolume, objCount)
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pvcs := make([]*api.PersistentVolumeClaim, objCount)
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for i := 0; i < objCount; i++ {
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pvName := "pv-startup-" + strconv.Itoa(i)
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pvcName := "pvc-startup-" + strconv.Itoa(i)
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pvc := createPVC(pvcName, ns.Name, "1G", []api.PersistentVolumeAccessMode{api.ReadWriteOnce})
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pvc.Annotations = map[string]string{"annBindCompleted": ""}
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pvc.Spec.VolumeName = pvName
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newPVC, err := testClient.PersistentVolumeClaims(ns.Name).Create(pvc)
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if err != nil {
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t.Fatalf("Cannot create claim %q: %v", pvc.Name, err)
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}
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// Save Bound status as a separate transaction
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newPVC.Status.Phase = api.ClaimBound
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newPVC, err = testClient.PersistentVolumeClaims(ns.Name).UpdateStatus(newPVC)
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if err != nil {
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t.Fatalf("Cannot update claim status %q: %v", pvc.Name, err)
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}
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pvcs[i] = newPVC
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// Drain watchPVC with all events generated by the PVC until it's bound
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// We don't want to catch "PVC craated with Status.Phase == Pending"
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// later in this test.
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waitForAnyPersistentVolumeClaimPhase(watchPVC, api.ClaimBound)
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pv := createPV(pvName, "/tmp/foo"+strconv.Itoa(i), "1G",
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[]api.PersistentVolumeAccessMode{api.ReadWriteOnce}, api.PersistentVolumeReclaimRetain)
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claimRef, err := api.GetReference(newPVC)
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if err != nil {
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glog.V(3).Infof("unexpected error getting claim reference: %v", err)
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return
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}
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pv.Spec.ClaimRef = claimRef
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newPV, err := testClient.PersistentVolumes().Create(pv)
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if err != nil {
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t.Fatalf("Cannot create volume %q: %v", pv.Name, err)
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}
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// Save Bound status as a separate transaction
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newPV.Status.Phase = api.VolumeBound
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newPV, err = testClient.PersistentVolumes().UpdateStatus(newPV)
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if err != nil {
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t.Fatalf("Cannot update volume status %q: %v", pv.Name, err)
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}
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pvs[i] = newPV
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// Drain watchPV with all events generated by the PV until it's bound
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// We don't want to catch "PV craated with Status.Phase == Pending"
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// later in this test.
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waitForAnyPersistentVolumePhase(watchPV, api.VolumeBound)
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}
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// Start the controller when all PVs and PVCs are already saved in etcd
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binder.Run()
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defer binder.Stop()
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// wait for at least two sync periods for changes. No volume should be
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// Released and no claim should be Lost during this time.
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timer := time.NewTimer(2 * syncPeriod)
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defer timer.Stop()
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finished := false
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for !finished {
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select {
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case volumeEvent := <-watchPV.ResultChan():
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volume, ok := volumeEvent.Object.(*api.PersistentVolume)
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if !ok {
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continue
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}
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if volume.Status.Phase != api.VolumeBound {
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t.Errorf("volume %s unexpectedly changed state to %s", volume.Name, volume.Status.Phase)
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}
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case claimEvent := <-watchPVC.ResultChan():
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claim, ok := claimEvent.Object.(*api.PersistentVolumeClaim)
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if !ok {
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continue
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}
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if claim.Status.Phase != api.ClaimBound {
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t.Errorf("claim %s unexpectedly changed state to %s", claim.Name, claim.Status.Phase)
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}
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case <-timer.C:
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// Wait finished
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glog.V(2).Infof("Wait finished")
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finished = true
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}
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}
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// check that everything is bound to something
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for i := 0; i < objCount; i++ {
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pv, err := testClient.PersistentVolumes().Get(pvs[i].Name)
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if err != nil {
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t.Fatalf("Unexpected error getting pv: %v", err)
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}
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if pv.Spec.ClaimRef == nil {
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t.Fatalf("PV %q is not bound", pv.Name)
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}
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glog.V(2).Infof("PV %q is bound to PVC %q", pv.Name, pv.Spec.ClaimRef.Name)
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pvc, err := testClient.PersistentVolumeClaims(ns.Name).Get(pvcs[i].Name)
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if err != nil {
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t.Fatalf("Unexpected error getting pvc: %v", err)
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}
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if pvc.Spec.VolumeName == "" {
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t.Fatalf("PVC %q is not bound", pvc.Name)
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}
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glog.V(2).Infof("PVC %q is bound to PV %q", pvc.Name, pvc.Spec.VolumeName)
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}
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}
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// TestPersistentVolumeProvisionMultiPVCs tests provisioning of many PVCs.
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// This test is configurable by KUBE_INTEGRATION_PV_* variables.
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func TestPersistentVolumeProvisionMultiPVCs(t *testing.T) {
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@ -643,7 +770,7 @@ func TestPersistentVolumeProvisionMultiPVCs(t *testing.T) {
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ns := framework.CreateTestingNamespace("provision-multi-pvs", s, t)
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defer framework.DeleteTestingNamespace(ns, s, t)
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testClient, binder, watchPV, watchPVC := createClients(ns, t, s)
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testClient, binder, watchPV, watchPVC := createClients(ns, t, s, defaultSyncPeriod)
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defer watchPV.Stop()
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defer watchPVC.Stop()
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@ -727,7 +854,7 @@ func TestPersistentVolumeMultiPVsDiffAccessModes(t *testing.T) {
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ns := framework.CreateTestingNamespace("multi-pvs-diff-access", s, t)
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defer framework.DeleteTestingNamespace(ns, s, t)
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testClient, controller, watchPV, watchPVC := createClients(ns, t, s)
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testClient, controller, watchPV, watchPVC := createClients(ns, t, s, defaultSyncPeriod)
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defer watchPV.Stop()
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defer watchPVC.Stop()
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@ -867,7 +994,7 @@ func waitForAnyPersistentVolumeClaimPhase(w watch.Interface, phase api.Persisten
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}
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}
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func createClients(ns *api.Namespace, t *testing.T, s *httptest.Server) (*clientset.Clientset, *persistentvolumecontroller.PersistentVolumeController, watch.Interface, watch.Interface) {
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func createClients(ns *api.Namespace, t *testing.T, s *httptest.Server, syncPeriod time.Duration) (*clientset.Clientset, *persistentvolumecontroller.PersistentVolumeController, watch.Interface, watch.Interface) {
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// Use higher QPS and Burst, there is a test for race conditions which
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// creates many objects and default values were too low.
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binderClient := clientset.NewForConfigOrDie(&restclient.Config{
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@ -899,7 +1026,7 @@ func createClients(ns *api.Namespace, t *testing.T, s *httptest.Server) (*client
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plugins := []volume.VolumePlugin{plugin}
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cloud := &fake_cloud.FakeCloud{}
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syncPeriod := getSyncPeriod()
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syncPeriod = getSyncPeriod(syncPeriod)
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ctrl := persistentvolumecontroller.NewPersistentVolumeController(binderClient, syncPeriod, plugin, plugins, cloud, "", nil, nil, nil, true)
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watchPV, err := testClient.PersistentVolumes().Watch(api.ListOptions{})
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