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Delete orphan CSI snapshots in backup sync controller

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This commit makes backup sync controller delete the volumesnapshot and
volumesnapshotcontent created by the backup which is cleaned up as orphan

Signed-off-by: Daniel Jiang <jiangd@vmware.com>
This commit is contained in:
Daniel Jiang
2022-05-05 10:54:34 +08:00
parent 001229a8b3
commit 89e90d9be4
7 changed files with 44 additions and 4 deletions
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pkg/controller/backup_sync_controller.go
+31 -1
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@@ -20,7 +20,9 @@ import (
"context"
"time"
snapshotv1api "github.com/kubernetes-csi/external-snapshotter/client/v4/apis/volumesnapshot/v1"
snapshotterClientSet "github.com/kubernetes-csi/external-snapshotter/client/v4/clientset/versioned"
snapshotv1listers "github.com/kubernetes-csi/external-snapshotter/client/v4/listers/volumesnapshot/v1"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
kuberrs "k8s.io/apimachinery/pkg/api/errors"
@@ -29,6 +31,8 @@ import (
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/client-go/kubernetes"
"github.com/vmware-tanzu/velero/pkg/util/kube"
"github.com/vmware-tanzu/velero/internal/storage"
velerov1api "github.com/vmware-tanzu/velero/pkg/apis/velero/v1"
"github.com/vmware-tanzu/velero/pkg/features"
@@ -48,6 +52,7 @@ type backupSyncController struct {
kbClient client.Client
podVolumeBackupClient velerov1client.PodVolumeBackupsGetter
backupLister velerov1listers.BackupLister
csiVSLister snapshotv1listers.VolumeSnapshotLister
csiSnapshotClient *snapshotterClientSet.Clientset
kubeClient kubernetes.Interface
namespace string
@@ -62,6 +67,7 @@ func NewBackupSyncController(
kbClient client.Client,
podVolumeBackupClient velerov1client.PodVolumeBackupsGetter,
backupLister velerov1listers.BackupLister,
csiVSLister snapshotv1listers.VolumeSnapshotLister,
syncPeriod time.Duration,
namespace string,
csiSnapshotClient *snapshotterClientSet.Clientset,
@@ -85,6 +91,7 @@ func NewBackupSyncController(
defaultBackupLocation: defaultBackupLocation,
defaultBackupSyncPeriod: syncPeriod,
backupLister: backupLister,
csiVSLister: csiVSLister,
csiSnapshotClient: csiSnapshotClient,
kubeClient: kubeClient,
@@ -358,11 +365,34 @@ func (c *backupSyncController) deleteOrphanedBackups(locationName string, backup
if backup.Status.Phase != velerov1api.BackupPhaseCompleted || backupStoreBackups.Has(backup.Name) {
continue
}
if err := c.backupClient.Backups(backup.Namespace).Delete(context.TODO(), backup.Name, metav1.DeleteOptions{}); err != nil {
log.WithError(errors.WithStack(err)).Error("Error deleting orphaned backup from cluster")
} else {
log.Debug("Deleted orphaned backup from cluster")
c.deleteCSISnapshotsByBackup(backup.Name, log)
}
}
}
func (c *backupSyncController) deleteCSISnapshotsByBackup(backupName string, log logrus.FieldLogger) {
if !features.IsEnabled(velerov1api.CSIFeatureFlag) {
return
}
m := client.MatchingLabels{velerov1api.BackupNameLabel: label.GetValidName(backupName)}
if vsList, err := c.csiVSLister.List(label.NewSelectorForBackup(label.GetValidName(backupName))); err != nil {
log.WithError(err).Warnf("Failed to list volumesnapshots for backup: %s, the deletion will be skipped", backupName)
} else {
for _, vs := range vsList {
name := kube.NamespaceAndName(vs.GetObjectMeta())
log.Debugf("Deleting volumesnapshot %s", name)
if err := c.kbClient.Delete(context.TODO(), vs); err != nil {
log.WithError(err).Warnf("Failed to delete volumesnapshot %s", name)
}
}
}
vsc := &snapshotv1api.VolumeSnapshotContent{}
log.Debugf("Deleting volumesnapshotcontents for backup: %s", backupName)
if err := c.kbClient.DeleteAllOf(context.TODO(), vsc, m); err != nil {
log.WithError(err).Warnf("Failed to delete volumesnapshotcontents for backup: %s", backupName)
}
}