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Add BSL status phase based on validation
Signed-off-by: Carlisia <[email protected]>
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Carlisia
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May 1, 2020
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,162 @@ | ||
| /* | ||
| Copyright 2020 the Velero contributors. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package controller | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "strings" | ||
| "time" | ||
|
|
||
| jsonpatch "github.com/evanphx/json-patch" | ||
| "github.com/pkg/errors" | ||
| "github.com/sirupsen/logrus" | ||
| v1 "github.com/vmware-tanzu/velero/pkg/apis/velero/v1" | ||
| velerov1api "github.com/vmware-tanzu/velero/pkg/apis/velero/v1" | ||
| velerov1client "github.com/vmware-tanzu/velero/pkg/generated/clientset/versioned/typed/velero/v1" | ||
| velerov1listers "github.com/vmware-tanzu/velero/pkg/generated/listers/velero/v1" | ||
| "github.com/vmware-tanzu/velero/pkg/persistence" | ||
| "github.com/vmware-tanzu/velero/pkg/plugin/clientmgmt" | ||
| "k8s.io/apimachinery/pkg/labels" | ||
| "k8s.io/apimachinery/pkg/types" | ||
| ) | ||
|
|
||
| type backupStorageLocationController struct { | ||
| *genericController | ||
|
|
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| namespace string | ||
| defaultBackupLocation string | ||
| backupLocationClient velerov1client.BackupStorageLocationsGetter | ||
| backupStorageLocationLister velerov1listers.BackupStorageLocationLister | ||
| newPluginManager func(logrus.FieldLogger) clientmgmt.Manager | ||
| newBackupStore func(*velerov1api.BackupStorageLocation, persistence.ObjectStoreGetter, logrus.FieldLogger) (persistence.BackupStore, error) | ||
| } | ||
|
|
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| func NewBackupStorageLocationController( | ||
| namespace string, | ||
| defaultBackupLocation string, | ||
| backupLocationClient velerov1client.BackupStorageLocationsGetter, | ||
| backupStorageLocationLister velerov1listers.BackupStorageLocationLister, | ||
| newPluginManager func(logrus.FieldLogger) clientmgmt.Manager, | ||
| logger logrus.FieldLogger, | ||
| ) Interface { | ||
| c := backupStorageLocationController{ | ||
| genericController: newGenericController("backup-storage-location", logger), | ||
| namespace: namespace, | ||
| defaultBackupLocation: defaultBackupLocation, | ||
| backupLocationClient: backupLocationClient, | ||
| backupStorageLocationLister: backupStorageLocationLister, | ||
|
|
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| // use variables to refer to these functions so they can be | ||
| // replaced with fakes for testing. | ||
| newPluginManager: newPluginManager, | ||
| newBackupStore: persistence.NewObjectBackupStore, | ||
| } | ||
|
|
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| c.resyncFunc = c.run | ||
| c.resyncPeriod = 30 * time.Second | ||
|
|
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| return c | ||
| } | ||
|
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| func (c *backupStorageLocationController) run() { | ||
| c.logger.Info("Checking that there is at least 1 backup storage location that is ready") | ||
|
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| locations, err := c.backupStorageLocationLister.BackupStorageLocations(c.namespace).List(labels.Everything()) | ||
| if err != nil { | ||
| c.logger.WithError(err).Error("Error listing backup storage locations, at least one available backup storage location is required") | ||
| return | ||
| } | ||
|
|
||
| if len(locations) == 0 { | ||
| c.logger.Error("No backup storage locations found, at least one available backup storage location is required") | ||
| return | ||
| } | ||
|
|
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| pluginManager := c.newPluginManager(c.logger) | ||
| defer pluginManager.CleanupClients() | ||
|
|
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| var unavailable []string | ||
| for _, location := range locations { | ||
| backupStore, err := c.newBackupStore(location, pluginManager, c.logger) | ||
| if err != nil { | ||
| unavailable = append(unavailable, errors.Wrapf(err, "error getting backup store for location %q", location.Name).Error()) | ||
| continue | ||
| } | ||
|
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| locationName := location.Name | ||
| if err := backupStore.IsValid(); err != nil { | ||
| // update status | ||
| _, err2 := c.patchBackupStorageLocation(location, func(r *v1.BackupStorageLocation) { | ||
| r.Status.Phase = velerov1api.BackupStorageLocationPhaseUnavailable | ||
| }) | ||
| if err2 != nil { | ||
| unavailable = append(unavailable, errors.Wrapf(err2, "error updating backup storage for location %q to %s status", locationName, velerov1api.BackupStorageLocationPhaseUnavailable).Error()) | ||
| } else { | ||
| unavailable = append(unavailable, errors.Wrapf(err, "location %q is unavailable", locationName).Error()) | ||
| } | ||
| } else { | ||
| // update status | ||
| _, err := c.patchBackupStorageLocation(location, func(r *v1.BackupStorageLocation) { | ||
| r.Status.Phase = velerov1api.BackupStorageLocationPhaseAvailable | ||
| }) | ||
| if err != nil { | ||
| unavailable = append(unavailable, errors.Wrapf(err, "error updating backup storage for location %q to %s status", locationName, velerov1api.BackupStorageLocationPhaseAvailable).Error()) | ||
| } | ||
| } | ||
| } | ||
|
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| if len(unavailable) == len(locations) { // no BSL available | ||
| c.logger.Errorf("There are no backup storage locations available, at least one available backup storage location is required: %s", strings.Join(unavailable, "; ")) | ||
| } else if len(unavailable) > 0 { // some but not all BSL unavailable | ||
| for _, location := range locations { | ||
| if location.Name == c.defaultBackupLocation && location.Status.Phase == velerov1api.BackupStorageLocationPhaseUnavailable { | ||
| c.logger.Warnf("The specified default backup storage location named %q is unavailable; for convenience, be sure to configure it properly or make another location that is available the default", c.defaultBackupLocation) | ||
| break | ||
| } | ||
| } | ||
| c.logger.Warnf("Unavailable backup storage locations detected: %s", strings.Join(unavailable, "; ")) | ||
| } | ||
| } | ||
|
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| func (c backupStorageLocationController) patchBackupStorageLocation(req *velerov1api.BackupStorageLocation, mutate func(*v1.BackupStorageLocation)) (*velerov1api.BackupStorageLocation, error) { | ||
| // Record original json | ||
| oldData, err := json.Marshal(req) | ||
| if err != nil { | ||
| return nil, errors.Wrap(err, "error marshalling original BackupStorageLocations") | ||
| } | ||
|
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| // Mutate | ||
| mutate(req) | ||
|
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| // Record new json | ||
| newData, err := json.Marshal(req) | ||
| if err != nil { | ||
| return nil, errors.Wrap(err, "error marshalling updated BackupStorageLocations") | ||
| } | ||
|
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| patchBytes, err := jsonpatch.CreateMergePatch(oldData, newData) | ||
| if err != nil { | ||
| return nil, errors.Wrap(err, "error creating json merge patch for BackupStorageLocations") | ||
| } | ||
|
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| bsl, err := c.backupLocationClient.BackupStorageLocations(req.Namespace).Patch(req.Name, types.MergePatchType, patchBytes) | ||
| if err != nil { | ||
| return nil, errors.Wrap(err, "error patching BackupStorageLocations") | ||
| } | ||
|
|
||
| return bsl, nil | ||
| } |
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