-
Notifications
You must be signed in to change notification settings - Fork 885
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
support auto delete WorkloadRebalancer when time up
Signed-off-by: chaosi-zju <[email protected]>
- Loading branch information
1 parent
4ccffcc
commit b1dce42
Showing
10 changed files
with
272 additions
and
13 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.
Oops, something went wrong.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
125 changes: 125 additions & 0 deletions
125
pkg/controllers/workloadrebalancer/ttlafterfinished_worker.go
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,125 @@ | ||
| /* | ||
| Copyright 2024 The Karmada Authors. | ||
| 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 workloadrebalancer | ||
|
|
||
| import ( | ||
| "context" | ||
| "time" | ||
|
|
||
| apierrors "k8s.io/apimachinery/pkg/api/errors" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/klog/v2" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
|
|
||
| appsv1alpha1 "github.com/karmada-io/karmada/pkg/apis/apps/v1alpha1" | ||
| "github.com/karmada-io/karmada/pkg/util" | ||
| ) | ||
|
|
||
| func (c *RebalancerController) deleteExpiredRebalancer(key util.QueueKey) error { | ||
| objKey, ok := key.(client.ObjectKey) | ||
| if !ok { | ||
| klog.Errorf("Invalid object key: %+v", key) | ||
| return nil | ||
| } | ||
| klog.V(4).Infof("Checking if WorkloadRebalancer(%s) is ready for cleanup", objKey.Name) | ||
|
|
||
| // 1. Get WorkloadRebalancer from cache. | ||
| rebalancer := &appsv1alpha1.WorkloadRebalancer{} | ||
| if err := c.Client.Get(context.TODO(), objKey, rebalancer); err != nil { | ||
| if apierrors.IsNotFound(err) { | ||
| return nil | ||
| } | ||
| return err | ||
| } | ||
|
|
||
| // 2. Use the WorkloadRebalancer from cache to see if the TTL expires. | ||
| if expiredAt, err := c.processTTL(rebalancer); err != nil { | ||
| return err | ||
| } else if expiredAt == nil { | ||
| return nil | ||
| } | ||
|
|
||
| // 3. The WorkloadRebalancer's TTL is assumed to have expired, but the WorkloadRebalancer TTL might be stale. | ||
| // Before deleting the WorkloadRebalancer, do a final sanity check. | ||
| // If TTL is modified before we do this check, we cannot be sure if the TTL truly expires. | ||
| fresh := &appsv1alpha1.WorkloadRebalancer{} | ||
| if err := c.ControlPlaneClient.Get(context.TODO(), objKey, fresh); err != nil { | ||
| if apierrors.IsNotFound(err) { | ||
| return nil | ||
| } | ||
| return err | ||
| } | ||
|
|
||
| // 4. Use the latest WorkloadRebalancer directly from api server to see if the TTL truly expires. | ||
| if expiredAt, err := c.processTTL(fresh); err != nil { | ||
| return err | ||
| } else if expiredAt == nil { | ||
| return nil | ||
| } | ||
|
|
||
| // 5. deletes the WorkloadRebalancer if TTL truly expires. | ||
| options := &client.DeleteOptions{Preconditions: &metav1.Preconditions{ResourceVersion: &fresh.ResourceVersion}} | ||
| if err := c.ControlPlaneClient.Delete(context.TODO(), fresh, options); err != nil { | ||
| klog.Errorf("Cleaning up WorkloadRebalancer(%s) failed: %+v", fresh.Name, err) | ||
| return err | ||
| } | ||
| klog.V(4).Infof("Cleaning up WorkloadRebalancer(%s) successful.", fresh.Name) | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| // processTTL checks whether a given WorkloadRebalancer's TTL has expired, and add it to the queue after | ||
| // the TTL is expected to expire if the TTL will expire later. | ||
| func (c *RebalancerController) processTTL(r *appsv1alpha1.WorkloadRebalancer) (expiredAt *time.Time, err error) { | ||
| if !needsCleanup(r) { | ||
| return nil, nil | ||
| } | ||
|
|
||
| remainingTTL, expireAt, err := timeLeft(r) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| // TTL has expired | ||
| if *remainingTTL <= 0 { | ||
| return expireAt, nil | ||
| } | ||
|
|
||
| c.ttlAfterFinishedWorker.AddAfter(client.ObjectKey{Name: r.Name}, *remainingTTL) | ||
| return nil, nil | ||
| } | ||
|
|
||
| func timeLeft(r *appsv1alpha1.WorkloadRebalancer) (*time.Duration, *time.Time, error) { | ||
| now := time.Now() | ||
| finishAt := r.Status.FinishTime.Time | ||
| expireAt := finishAt.Add(time.Duration(*r.Spec.TTLSecondsAfterFinished) * time.Second) | ||
|
|
||
| if finishAt.After(now) { | ||
| klog.Infof("Found Rebalancer(%s) finished in the future. This is likely due to time skew in the cluster, cleanup will be deferred.", r.Name) | ||
| } | ||
|
|
||
| remainingTTL := expireAt.Sub(now) | ||
| klog.V(4).Infof("Found Rebalancer(%s) finished, finishTime: %+v, remainingTTL: %+v, startTime: %+v, deadlineTTL: %+v", | ||
| r.Name, finishAt.UTC(), remainingTTL, now.UTC(), expireAt.UTC()) | ||
|
|
||
| return &remainingTTL, &expireAt, nil | ||
| } | ||
|
|
||
| // needsCleanup checks whether a WorkloadRebalancer has finished and has a TTL set. | ||
| func needsCleanup(r *appsv1alpha1.WorkloadRebalancer) bool { | ||
| return r.Spec.TTLSecondsAfterFinished != nil && isRebalancerFinished(r) | ||
| } |
Oops, something went wrong.