// Wait for the pv and pvc to bind to each other.
func waitOnPVandPVC(c clientset.Interface, ns string, pv *v1.PersistentVolume, pvc *v1.PersistentVolumeClaim) {
// Wait for newly created PVC to bind to the PV
framework.Logf("Waiting for PV %v to bind to PVC %v", pv.Name, pvc.Name)
err := framework.WaitForPersistentVolumeClaimPhase(v1.ClaimBound, c, ns, pvc.Name, 3*time.Second, 300*time.Second)
Expect(err).NotTo(HaveOccurred())
// Wait for PersistentVolume.Status.Phase to be Bound, which it should be
// since the PVC is already bound.
err = framework.WaitForPersistentVolumePhase(v1.VolumeBound, c, pv.Name, 3*time.Second, 300*time.Second)
Expect(err).NotTo(HaveOccurred())
// Re-get the pv and pvc objects
pv, err = c.Core().PersistentVolumes().Get(pv.Name, metav1.GetOptions{})
Expect(err).NotTo(HaveOccurred())
// Re-get the pvc and
pvc, err = c.Core().PersistentVolumeClaims(ns).Get(pvc.Name, metav1.GetOptions{})
Expect(err).NotTo(HaveOccurred())
// The pv and pvc are both bound, but to each other?
// Check that the PersistentVolume.ClaimRef matches the PVC
Expect(pv.Spec.ClaimRef).NotTo(BeNil())
Expect(pv.Spec.ClaimRef.Name).To(Equal(pvc.Name))
Expect(pvc.Spec.VolumeName).To(Equal(pv.Name))
Expect(pv.Spec.ClaimRef.UID).To(Equal(pvc.UID))
}
// Delete the PVC and wait for the PV to become Available again. Validate that the PV
// has recycled (assumption here about reclaimPolicy). Caller tells this func which
// phase value to expect for the pv bound to the to-be-deleted claim.
func deletePVCandValidatePV(c clientset.Interface, ns string, pvc *v1.PersistentVolumeClaim, pv *v1.PersistentVolume, expctPVPhase v1.PersistentVolumePhase) {
pvname := pvc.Spec.VolumeName
framework.Logf("Deleting PVC %v to trigger recycling of PV %v", pvc.Name, pvname)
deletePersistentVolumeClaim(c, pvc.Name, ns)
// Check that the PVC is really deleted.
pvc, err := c.Core().PersistentVolumeClaims(ns).Get(pvc.Name, metav1.GetOptions{})
Expect(apierrs.IsNotFound(err)).To(BeTrue())
// Wait for the PV's phase to return to Available
framework.Logf("Waiting for recycling process to complete.")
err = framework.WaitForPersistentVolumePhase(expctPVPhase, c, pv.Name, 1*time.Second, 300*time.Second)
Expect(err).NotTo(HaveOccurred())
// examine the pv's ClaimRef and UID and compare to expected values
pv, err = c.Core().PersistentVolumes().Get(pv.Name, metav1.GetOptions{})
Expect(err).NotTo(HaveOccurred())
cr := pv.Spec.ClaimRef
if expctPVPhase == v1.VolumeAvailable {
if cr != nil { // may be ok if cr != nil
Expect(len(cr.UID)).To(BeZero())
}
} else if expctPVPhase == v1.VolumeBound {
Expect(cr).NotTo(BeNil())
Expect(len(cr.UID)).NotTo(BeZero())
}
framework.Logf("PV %v now in %q phase", pv.Name, expctPVPhase)
}
// Wait for the pv and pvc to bind to each other. Fail test on errors.
func waitOnPVandPVC(c *client.Client, ns string, pv *api.PersistentVolume, pvc *api.PersistentVolumeClaim) error {
// Wait for newly created PVC to bind to the PV
framework.Logf("Waiting for PV %v to bind to PVC %v", pv.Name, pvc.Name)
err := framework.WaitForPersistentVolumeClaimPhase(api.ClaimBound, c, ns, pvc.Name, 3*time.Second, 300*time.Second)
if err != nil {
return fmt.Errorf("PersistentVolumeClaim failed to enter a bound state: %+v", err)
}
// Wait for PersistentVolume.Status.Phase to be Bound, which it should be
// since the PVC is already bound.
err = framework.WaitForPersistentVolumePhase(api.VolumeBound, c, pv.Name, 3*time.Second, 300*time.Second)
if err != nil {
return fmt.Errorf("PersistentVolume failed to enter a bound state even though PVC is Bound: %+v", err)
}
return nil
}
// Delete the PVC and wait for the PV to become Available again.
// Validate that the PV has recycled (assumption here about reclaimPolicy).
func deletePVCandValidatePV(c *client.Client, ns string, pvc *api.PersistentVolumeClaim, pv *api.PersistentVolume) (*api.PersistentVolume, *api.PersistentVolumeClaim, error) {
By("Deleting PersistentVolumeClaim to trigger PV Recycling")
framework.Logf("Deleting PersistentVolumeClaim %v to trigger PV Recycling", pvc.Name)
err := c.PersistentVolumeClaims(ns).Delete(pvc.Name)
if err != nil {
return pv, pvc, fmt.Errorf("Delete of PVC %v failed: %v", pvc.Name, err)
}
// Check that the PVC is really deleted.
pvc, err = c.PersistentVolumeClaims(ns).Get(pvc.Name)
if err == nil {
return pv, pvc, fmt.Errorf("PVC %v deleted yet still exists", pvc.Name)
}
if !apierrs.IsNotFound(err) {
return pv, pvc, fmt.Errorf("Get on deleted PVC %v failed with error other than \"not found\": %v", pvc.Name, err)
}
// Wait for the PV's phase to return to Available
framework.Logf("Waiting for recycling process to complete.")
err = framework.WaitForPersistentVolumePhase(api.VolumeAvailable, c, pv.Name, 3*time.Second, 300*time.Second)
if err != nil {
return pv, pvc, fmt.Errorf("Recycling failed: %v", err)
}
// Examine the pv.ClaimRef and UID. Expect nil values.
pv, err = c.PersistentVolumes().Get(pv.Name)
if err != nil {
return pv, pvc, fmt.Errorf("Cannot re-get PersistentVolume %v:", pv.Name)
}
if pv.Spec.ClaimRef != nil && len(pv.Spec.ClaimRef.UID) > 0 {
crJSON, _ := json.Marshal(pv.Spec.ClaimRef)
return pv, pvc, fmt.Errorf("Expected PV %v's ClaimRef to be nil, or the claimRef's UID to be blank. Instead claimRef is: %v", pv.Name, string(crJSON))
}
return pv, pvc, nil
}
// Search for bound PVs and PVCs by examining pvols for non-nil claimRefs.
// NOTE: Each iteration waits for a maximum of 3 minutes per PV and, if the PV is bound,
// up to 3 minutes for the PVC. When the number of PVs != number of PVCs, this can lead
// to situations where the maximum wait times are reached several times in succession,
// extending test time. Thus, it is recommended to keep the delta between PVs and PVCs
// small.
func waitAndVerifyBinds(c clientset.Interface, ns string, pvols pvmap, claims pvcmap, testExpected bool) {
var actualBinds int
expectedBinds := len(pvols)
if expectedBinds > len(claims) { // want the min of # pvs or #pvcs
expectedBinds = len(claims)
}
for pvName := range pvols {
err := framework.WaitForPersistentVolumePhase(v1.VolumeBound, c, pvName, 3*time.Second, 180*time.Second)
if err != nil && len(pvols) > len(claims) {
framework.Logf("WARN: pv %v is not bound after max wait", pvName)
framework.Logf(" This may be ok since there are more pvs than pvcs")
continue
}
Expect(err).NotTo(HaveOccurred())
pv, err := c.Core().PersistentVolumes().Get(pvName, metav1.GetOptions{})
Expect(err).NotTo(HaveOccurred())
if cr := pv.Spec.ClaimRef; cr != nil && len(cr.Name) > 0 {
// Assert bound pvc is a test resource. Failing assertion could
// indicate non-test PVC interference or a bug in the test
pvcKey := makePvcKey(ns, cr.Name)
_, found := claims[pvcKey]
Expect(found).To(BeTrue())
err = framework.WaitForPersistentVolumeClaimPhase(v1.ClaimBound, c, ns, cr.Name, 3*time.Second, 180*time.Second)
Expect(err).NotTo(HaveOccurred())
actualBinds++
}
}
if testExpected {
Expect(actualBinds).To(Equal(expectedBinds))
}
}
serverIP := pod.Status.PodIP
framework.Logf("NFS server IP address: %v", serverIP)
pv := makePersistentVolume(serverIP)
pvc := makePersistentVolumeClaim(ns)
framework.Logf("Creating PersistentVolume using NFS")
pv, err := c.PersistentVolumes().Create(pv)
Expect(err).NotTo(HaveOccurred())
framework.Logf("Creating PersistentVolumeClaim")
pvc, err = c.PersistentVolumeClaims(ns).Create(pvc)
Expect(err).NotTo(HaveOccurred())
// allow the binder a chance to catch up. should not be more than 20s.
framework.WaitForPersistentVolumePhase(api.VolumeBound, c, pv.Name, 1*time.Second, 30*time.Second)
pv, err = c.PersistentVolumes().Get(pv.Name)
Expect(err).NotTo(HaveOccurred())
if pv.Spec.ClaimRef == nil {
framework.Failf("Expected PersistentVolume to be bound, but got nil ClaimRef: %+v", pv)
}
framework.Logf("Deleting PersistentVolumeClaim to trigger PV Recycling")
err = c.PersistentVolumeClaims(ns).Delete(pvc.Name)
Expect(err).NotTo(HaveOccurred())
// allow the recycler a chance to catch up. it has to perform NFS scrub, which can be slow in e2e.
framework.WaitForPersistentVolumePhase(api.VolumeAvailable, c, pv.Name, 5*time.Second, 300*time.Second)
pv, err = c.PersistentVolumes().Get(pv.Name)