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reconciler.go
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reconciler.go
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// SPDX-FileCopyrightText: 2024 SAP SE or an SAP affiliate company and Gardener contributors
//
// SPDX-License-Identifier: Apache-2.0
package backupbucketscheck
import (
"context"
"fmt"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/utils/clock"
"sigs.k8s.io/controller-runtime/pkg/client"
logf "sigs.k8s.io/controller-runtime/pkg/log"
"sigs.k8s.io/controller-runtime/pkg/reconcile"
"github.com/gardener/gardener/pkg/apis/core"
gardencorev1beta1 "github.com/gardener/gardener/pkg/apis/core/v1beta1"
v1beta1helper "github.com/gardener/gardener/pkg/apis/core/v1beta1/helper"
"github.com/gardener/gardener/pkg/controllermanager/apis/config"
"github.com/gardener/gardener/pkg/controllermanager/controller/seed/utils"
"github.com/gardener/gardener/pkg/controllerutils"
)
// Reconciler reconciles Seeds and maintains the BackupBucketsReady condition according to the observed status of the
// referencing BackupBuckets.
type Reconciler struct {
Client client.Client
Config config.SeedBackupBucketsCheckControllerConfiguration
Clock clock.Clock
}
// Reconcile reconciles Seeds and maintains the BackupBucketsReady condition according to the observed status of the
// referencing BackupBuckets.
func (r *Reconciler) Reconcile(ctx context.Context, req reconcile.Request) (reconcile.Result, error) {
log := logf.FromContext(ctx)
ctx, cancel := controllerutils.GetMainReconciliationContext(ctx, r.Config.SyncPeriod.Duration)
defer cancel()
seed := &gardencorev1beta1.Seed{}
if err := r.Client.Get(ctx, req.NamespacedName, seed); err != nil {
if apierrors.IsNotFound(err) {
log.V(1).Info("Object is gone, stop reconciling")
return reconcile.Result{}, nil
}
return reconcile.Result{}, fmt.Errorf("error retrieving object from store: %w", err)
}
backupBucketList := &gardencorev1beta1.BackupBucketList{}
if err := r.Client.List(ctx, backupBucketList, client.MatchingFields{core.BackupBucketSeedName: seed.Name}); err != nil {
return reconcile.Result{}, err
}
conditionBackupBucketsReady := v1beta1helper.GetOrInitConditionWithClock(r.Clock, seed.Status.Conditions, gardencorev1beta1.SeedBackupBucketsReady)
var (
bbCount int
erroneousBackupBuckets []backupBucketInfo
)
for _, bb := range backupBucketList.Items {
bbCount++
if occurred, msg := v1beta1helper.BackupBucketIsErroneous(&bb); occurred {
erroneousBackupBuckets = append(erroneousBackupBuckets, backupBucketInfo{
name: bb.Name,
errorMsg: msg,
})
}
}
conditionThreshold := utils.GetThresholdForCondition(r.Config.ConditionThresholds, gardencorev1beta1.SeedBackupBucketsReady)
switch {
case len(erroneousBackupBuckets) > 0:
errorMsg := "The following BackupBuckets have issues:"
for _, bb := range erroneousBackupBuckets {
errorMsg += fmt.Sprintf("\n* %s", bb)
}
conditionBackupBucketsReady = utils.SetToProgressingOrFalse(r.Clock, conditionThreshold, conditionBackupBucketsReady, "BackupBucketsError", errorMsg)
if updateErr := utils.PatchSeedCondition(ctx, log, r.Client.Status(), seed, conditionBackupBucketsReady); updateErr != nil {
return reconcile.Result{}, updateErr
}
case bbCount > 0:
if updateErr := utils.PatchSeedCondition(ctx, log, r.Client.Status(), seed, v1beta1helper.UpdatedConditionWithClock(r.Clock, conditionBackupBucketsReady,
gardencorev1beta1.ConditionTrue, "BackupBucketsAvailable", "Backup Buckets are available.")); updateErr != nil {
return reconcile.Result{}, updateErr
}
case bbCount == 0:
conditionBackupBucketsReady = utils.SetToProgressingOrUnknown(r.Clock, conditionThreshold, conditionBackupBucketsReady, "BackupBucketsGone", "Backup Buckets are gone.")
if updateErr := utils.PatchSeedCondition(ctx, log, r.Client.Status(), seed, conditionBackupBucketsReady); updateErr != nil {
return reconcile.Result{}, updateErr
}
}
return reconcile.Result{RequeueAfter: r.Config.SyncPeriod.Duration}, nil
}
type backupBucketInfo struct {
name string
errorMsg string
}
func (b backupBucketInfo) String() string {
return fmt.Sprintf("Name: %s, Error: %s", b.name, b.errorMsg)
}