mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-22 14:20:19 +00:00
4d4a2a7814
When an error occurs, the pvc object is overwritten in the
PollImmediate() loop. Re-using the pvc.Namespace results in error
messages like
Error getting pvc in namespace: '': an empty namespace may not be set when a resource name is provided
and prevents the retry by PollImmediate() to never succeed. Storing the
namespace in a local variable prevents this from happening.
Reported-by: Rakshith R <rar@redhat.com>
Signed-off-by: Niels de Vos <ndevos@redhat.com>
335 lines
10 KiB
Go
335 lines
10 KiB
Go
package e2e
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import (
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"context"
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"errors"
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"fmt"
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"strings"
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"time"
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v1 "k8s.io/api/core/v1"
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apierrs "k8s.io/apimachinery/pkg/api/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/util/wait"
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"k8s.io/client-go/kubernetes"
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"k8s.io/kubernetes/test/e2e/framework"
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e2elog "k8s.io/kubernetes/test/e2e/framework/log"
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e2epv "k8s.io/kubernetes/test/e2e/framework/pv"
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)
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func loadPVC(path string) (*v1.PersistentVolumeClaim, error) {
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pvc := &v1.PersistentVolumeClaim{}
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err := unmarshal(path, &pvc)
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if err != nil {
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return nil, err
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}
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return pvc, err
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}
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func createPVCAndvalidatePV(c kubernetes.Interface, pvc *v1.PersistentVolumeClaim, t int) error {
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timeout := time.Duration(t) * time.Minute
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pv := &v1.PersistentVolume{}
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var err error
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_, err = c.CoreV1().PersistentVolumeClaims(pvc.Namespace).Create(context.TODO(), pvc, metav1.CreateOptions{})
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if err != nil {
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return fmt.Errorf("failed to create pvc: %w", err)
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}
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if timeout == 0 {
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return nil
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}
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name := pvc.Name
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namespace := pvc.Namespace
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start := time.Now()
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e2elog.Logf("Waiting up to %v to be in Bound state", pvc)
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return wait.PollImmediate(poll, timeout, func() (bool, error) {
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e2elog.Logf("waiting for PVC %s (%d seconds elapsed)", name, int(time.Since(start).Seconds()))
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pvc, err = c.CoreV1().PersistentVolumeClaims(namespace).Get(context.TODO(), name, metav1.GetOptions{})
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if err != nil {
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e2elog.Logf("Error getting pvc %q in namespace %q: %v", name, namespace, err)
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if isRetryableAPIError(err) {
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return false, nil
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}
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if apierrs.IsNotFound(err) {
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return false, nil
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}
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return false, fmt.Errorf("failed to get pvc: %w", err)
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}
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if pvc.Spec.VolumeName == "" {
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return false, nil
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}
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pv, err = c.CoreV1().PersistentVolumes().Get(context.TODO(), pvc.Spec.VolumeName, metav1.GetOptions{})
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if err != nil {
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if isRetryableAPIError(err) {
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return false, nil
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}
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if apierrs.IsNotFound(err) {
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return false, nil
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}
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return false, fmt.Errorf("failed to get pv: %w", err)
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}
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err = e2epv.WaitOnPVandPVC(
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c,
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&framework.TimeoutContext{ClaimBound: timeout, PVBound: timeout},
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namespace,
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pv,
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pvc)
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if err != nil {
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return false, fmt.Errorf("failed to wait for the pv and pvc to bind: %w", err)
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}
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return true, nil
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})
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}
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func createPVCAndPV(c kubernetes.Interface, pvc *v1.PersistentVolumeClaim, pv *v1.PersistentVolume) error {
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_, err := c.CoreV1().PersistentVolumeClaims(pvc.Namespace).Create(context.TODO(), pvc, metav1.CreateOptions{})
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if err != nil {
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return fmt.Errorf("failed to create pvc: %w", err)
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}
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_, err = c.CoreV1().PersistentVolumes().Create(context.TODO(), pv, metav1.CreateOptions{})
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if err != nil {
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return fmt.Errorf("failed to create pv: %w", err)
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}
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return err
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}
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func deletePVCAndPV(c kubernetes.Interface, pvc *v1.PersistentVolumeClaim, pv *v1.PersistentVolume, t int) error {
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err := c.CoreV1().PersistentVolumeClaims(pvc.Namespace).Delete(context.TODO(), pvc.Name, metav1.DeleteOptions{})
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if err != nil {
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return fmt.Errorf("failed to delete pvc: %w", err)
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}
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err = c.CoreV1().PersistentVolumes().Delete(context.TODO(), pv.Name, metav1.DeleteOptions{})
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if err != nil {
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return fmt.Errorf("failed to delete pv: %w", err)
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}
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timeout := time.Duration(t) * time.Minute
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start := time.Now()
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pvcToDelete := pvc
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err = wait.PollImmediate(poll, timeout, func() (bool, error) {
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// Check that the PVC is deleted.
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e2elog.Logf(
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"waiting for PVC %s in state %s to be deleted (%d seconds elapsed)",
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pvcToDelete.Name,
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pvcToDelete.Status.String(),
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int(time.Since(start).Seconds()))
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pvcToDelete, err = c.CoreV1().
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PersistentVolumeClaims(pvcToDelete.Namespace).
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Get(context.TODO(), pvcToDelete.Name, metav1.GetOptions{})
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if err == nil {
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if pvcToDelete.Status.Phase == "" {
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// this is unexpected, an empty Phase is not defined
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// FIXME: see https://github.com/ceph/ceph-csi/issues/1874
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e2elog.Logf("PVC %s is in a weird state: %s", pvcToDelete.Name, pvcToDelete.String())
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}
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return false, nil
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}
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if isRetryableAPIError(err) {
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return false, nil
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}
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if !apierrs.IsNotFound(err) {
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return false, fmt.Errorf(
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"get on deleted PVC %v failed with error other than \"not found\": %w",
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pvc.Name,
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err)
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}
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return true, nil
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})
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if err != nil {
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return fmt.Errorf("failed to poll: %w", err)
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}
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start = time.Now()
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pvToDelete := pv
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return wait.PollImmediate(poll, timeout, func() (bool, error) {
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// Check that the PV is deleted.
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e2elog.Logf(
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"waiting for PV %s in state %s to be deleted (%d seconds elapsed)",
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pvToDelete.Name,
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pvToDelete.Status.String(),
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int(time.Since(start).Seconds()))
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pvToDelete, err = c.CoreV1().PersistentVolumes().Get(context.TODO(), pvToDelete.Name, metav1.GetOptions{})
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if err == nil {
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return false, nil
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}
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if isRetryableAPIError(err) {
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return false, nil
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}
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if !apierrs.IsNotFound(err) {
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return false, fmt.Errorf("delete PV %v failed with error other than \"not found\": %w", pv.Name, err)
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}
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return true, nil
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})
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}
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func getPVCAndPV(
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c kubernetes.Interface,
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pvcName, pvcNamespace string) (*v1.PersistentVolumeClaim, *v1.PersistentVolume, error) {
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pvc, err := c.CoreV1().PersistentVolumeClaims(pvcNamespace).Get(context.TODO(), pvcName, metav1.GetOptions{})
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if err != nil {
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return nil, nil, fmt.Errorf("failed to get PVC: %w", err)
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}
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pv, err := c.CoreV1().PersistentVolumes().Get(context.TODO(), pvc.Spec.VolumeName, metav1.GetOptions{})
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if err != nil {
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return pvc, nil, fmt.Errorf("failed to get PV: %w", err)
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}
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return pvc, pv, nil
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}
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func deletePVCAndValidatePV(c kubernetes.Interface, pvc *v1.PersistentVolumeClaim, t int) error {
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timeout := time.Duration(t) * time.Minute
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nameSpace := pvc.Namespace
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name := pvc.Name
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var err error
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e2elog.Logf("Deleting PersistentVolumeClaim %v on namespace %v", name, nameSpace)
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pvc, err = c.CoreV1().PersistentVolumeClaims(nameSpace).Get(context.TODO(), name, metav1.GetOptions{})
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if err != nil {
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return fmt.Errorf("failed to get pvc: %w", err)
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}
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pv, err := c.CoreV1().PersistentVolumes().Get(context.TODO(), pvc.Spec.VolumeName, metav1.GetOptions{})
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if err != nil {
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return fmt.Errorf("failed to get pv: %w", err)
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}
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err = c.CoreV1().PersistentVolumeClaims(nameSpace).Delete(context.TODO(), name, metav1.DeleteOptions{})
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if err != nil {
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return fmt.Errorf("delete of PVC %v failed: %w", name, err)
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}
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start := time.Now()
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return wait.PollImmediate(poll, timeout, func() (bool, error) {
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// Check that the PVC is really deleted.
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e2elog.Logf(
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"waiting for PVC %s in state %s to be deleted (%d seconds elapsed)",
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name,
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pvc.Status.String(),
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int(time.Since(start).Seconds()))
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pvc, err = c.CoreV1().PersistentVolumeClaims(nameSpace).Get(context.TODO(), name, metav1.GetOptions{})
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if err == nil {
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return false, nil
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}
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if isRetryableAPIError(err) {
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return false, nil
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}
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if !apierrs.IsNotFound(err) {
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return false, fmt.Errorf("get on deleted PVC %v failed with error other than \"not found\": %w", name, err)
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}
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// Examine the pv.ClaimRef and UID. Expect nil values.
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_, err = c.CoreV1().PersistentVolumes().Get(context.TODO(), pv.Name, metav1.GetOptions{})
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if err == nil {
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return false, nil
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}
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if isRetryableAPIError(err) {
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return false, nil
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}
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if !apierrs.IsNotFound(err) {
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return false, fmt.Errorf("delete PV %v failed with error other than \"not found\": %w", pv.Name, err)
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}
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return true, nil
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})
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}
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// getBoundPV returns a PV details.
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func getBoundPV(client kubernetes.Interface, pvc *v1.PersistentVolumeClaim) (*v1.PersistentVolume, error) {
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// Get new copy of the claim
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claim, err := client.CoreV1().
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PersistentVolumeClaims(pvc.Namespace).
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Get(context.TODO(), pvc.Name, metav1.GetOptions{})
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if err != nil {
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return nil, fmt.Errorf("failed to get pvc: %w", err)
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}
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// Get the bound PV
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pv, err := client.CoreV1().PersistentVolumes().Get(context.TODO(), claim.Spec.VolumeName, metav1.GetOptions{})
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if err != nil {
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return nil, fmt.Errorf("failed to get pv: %w", err)
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}
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return pv, nil
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}
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func checkPVSelectorValuesForPVC(f *framework.Framework, pvc *v1.PersistentVolumeClaim) error {
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pv, err := getBoundPV(f.ClientSet, pvc)
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if err != nil {
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return err
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}
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if len(pv.Spec.NodeAffinity.Required.NodeSelectorTerms) == 0 {
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return errors.New("found empty NodeSelectorTerms in PV")
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}
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rFound := false
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zFound := false
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for _, expression := range pv.Spec.NodeAffinity.Required.NodeSelectorTerms[0].MatchExpressions {
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switch expression.Key {
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case nodeCSIRegionLabel:
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if rFound {
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return errors.New("found multiple occurrences of topology key for region")
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}
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rFound = true
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if expression.Values[0] != regionValue {
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return errors.New("topology value for region label mismatch")
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}
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case nodeCSIZoneLabel:
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if zFound {
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return errors.New("found multiple occurrences of topology key for zone")
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}
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zFound = true
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if expression.Values[0] != zoneValue {
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return errors.New("topology value for zone label mismatch")
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}
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default:
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return errors.New("unexpected key in node selector terms found in PV")
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}
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}
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return nil
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}
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func getMetricsForPVC(f *framework.Framework, pvc *v1.PersistentVolumeClaim, t int) error {
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kubelet, err := getKubeletIP(f.ClientSet)
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if err != nil {
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return err
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}
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// kubelet needs to be started with --read-only-port=10255
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cmd := fmt.Sprintf("curl --silent 'http://%s:10255/metrics'", kubelet)
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// retry as kubelet does not immediately have the metrics available
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timeout := time.Duration(t) * time.Minute
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return wait.PollImmediate(poll, timeout, func() (bool, error) {
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stdOut, stdErr, err := execCommandInToolBoxPod(f, cmd, rookNamespace)
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if err != nil {
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e2elog.Logf("failed to get metrics for pvc %q (%v): %v", pvc.Name, err, stdErr)
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return false, nil
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}
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if stdOut == "" {
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e2elog.Logf("no metrics received from kublet on IP %s", kubelet)
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return false, nil
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}
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namespace := fmt.Sprintf("namespace=%q", pvc.Namespace)
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name := fmt.Sprintf("persistentvolumeclaim=%q", pvc.Name)
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for _, line := range strings.Split(stdOut, "\n") {
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if !strings.HasPrefix(line, "kubelet_volume_stats_") {
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continue
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}
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if strings.Contains(line, namespace) && strings.Contains(line, name) {
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// TODO: validate metrics if possible
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e2elog.Logf("found metrics for pvc %s/%s: %s", pvc.Namespace, pvc.Name, line)
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return true, nil
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}
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}
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e2elog.Logf("no metrics found for pvc %s/%s", pvc.Namespace, pvc.Name)
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return false, nil
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})
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}
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