-
Notifications
You must be signed in to change notification settings - Fork 4k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Introduce ProvisioningRequestPodsFilter processor
- Loading branch information
1 parent
10fafe7
commit a8542e4
Showing
10 changed files
with
304 additions
and
115 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
106 changes: 106 additions & 0 deletions
106
cluster-autoscaler/processors/provreq/provisioning_request_processors.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 +1,106 @@ | ||
| /* | ||
| Copyright 2023 The Kubernetes 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 provreq | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "time" | ||
|
|
||
| apiv1 "k8s.io/api/core/v1" | ||
| v1 "k8s.io/api/core/v1" | ||
| "k8s.io/autoscaler/cluster-autoscaler/context" | ||
| "k8s.io/autoscaler/cluster-autoscaler/processors/pods" | ||
| "k8s.io/autoscaler/cluster-autoscaler/utils/klogx" | ||
| ) | ||
|
|
||
| const ( | ||
| provisioningRequestPodAnnotationKey = "cluster-autoscaler.kubernetes.io/consume-provisioning-request" | ||
| maxProvReqEvent = 50 | ||
| ) | ||
|
|
||
| // EventManager is an interface for handling events for provisioning request. | ||
| type EventManager interface { | ||
| LogIgnoredInScaleUpEvent(context *context.AutoscalingContext, now time.Time, pod *apiv1.Pod, prName string) | ||
| Reset() | ||
| } | ||
|
|
||
| type defaultEventManager struct { | ||
| loggedEvents int | ||
| limit int | ||
| } | ||
|
|
||
| // NewDefautlEventManager return basic event manager. | ||
| func NewDefautlEventManager() *defaultEventManager { | ||
| return &defaultEventManager{limit: maxProvReqEvent} | ||
| } | ||
|
|
||
| // LogIgnoredInScaleUpEvent adds event about ignored scale up for unscheduled pod, that consumes Provisioning Request. | ||
| func (e *defaultEventManager) LogIgnoredInScaleUpEvent(context *context.AutoscalingContext, now time.Time, pod *apiv1.Pod, prName string) { | ||
| message := fmt.Sprintf("Unschedulable pod ignored in scale-up loop, because it's consuming ProvisioningRequest %s/%s", pod.Namespace, prName) | ||
| if e.loggedEvents < e.limit { | ||
| context.Recorder.Event(pod, apiv1.EventTypeNormal, "", message) | ||
| e.loggedEvents++ | ||
| } | ||
| } | ||
|
|
||
| // Reset resets event manager internal structure. It will be called once before handling all pods. | ||
| func (e *defaultEventManager) Reset() { | ||
| e.loggedEvents = 0 | ||
| } | ||
|
|
||
| // ProvisioningRequestPodsFilter filter out pods that consumes Provisioning Request | ||
| type ProvisioningRequestPodsFilter struct { | ||
| eventManager EventManager | ||
| } | ||
|
|
||
| // Process filters out all pods that are consuming a Provisioning Request from unschedulable pods list. | ||
| func (p *ProvisioningRequestPodsFilter) Process( | ||
| context *context.AutoscalingContext, | ||
| unschedulablePods []*apiv1.Pod, | ||
| ) ([]*apiv1.Pod, error) { | ||
| now := time.Now() | ||
| p.eventManager.Reset() | ||
| loggingQuota := klogx.PodsLoggingQuota() | ||
| result := make([]*apiv1.Pod, 0, len(unschedulablePods)) | ||
| for _, pod := range unschedulablePods { | ||
| prName, found := provisioningRequestName(pod) | ||
| if !found { | ||
| result = append(result, pod) | ||
| continue | ||
| } | ||
| klogx.V(1).UpTo(loggingQuota).Infof("Ignoring unschedulable pod %s/%s as it consumes ProvisioningRequest: %s/%s", pod.Namespace, pod.Name, pod.Namespace, prName) | ||
| p.eventManager.LogIgnoredInScaleUpEvent(context, now, pod, prName) | ||
| } | ||
| klogx.V(1).Over(loggingQuota).Infof("There are also %v other pods which were ignored", -loggingQuota.Left()) | ||
| return result, nil | ||
| } | ||
|
|
||
| // CleanUp cleans up the processor's internal structures. | ||
| func (p *ProvisioningRequestPodsFilter) CleanUp() {} | ||
|
|
||
| // NewProvisioningRequestPodsFilter creates a ProvisioningRequest filter processor. | ||
| func NewProvisioningRequestPodsFilter(e EventManager) pods.PodListProcessor { | ||
| return &ProvisioningRequestPodsFilter{e} | ||
| } | ||
|
|
||
| func provisioningRequestName(pod *v1.Pod) (string, bool) { | ||
| if pod == nil || pod.Annotations == nil { | ||
| return "", false | ||
| } | ||
| provReqName, found := pod.Annotations[provisioningRequestPodAnnotationKey] | ||
| return provReqName, found | ||
| } |
117 changes: 117 additions & 0 deletions
117
cluster-autoscaler/processors/provreq/provisioning_request_processors_test.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 +1,117 @@ | ||
| /* | ||
| Copyright 2023 The Kubernetes 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 provreq | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "testing" | ||
| "time" | ||
|
|
||
| "github.com/stretchr/testify/assert" | ||
| apiv1 "k8s.io/api/core/v1" | ||
| v1 "k8s.io/api/core/v1" | ||
| "k8s.io/autoscaler/cluster-autoscaler/context" | ||
| . "k8s.io/autoscaler/cluster-autoscaler/utils/test" | ||
| "k8s.io/client-go/tools/record" | ||
| ) | ||
|
|
||
| func TestProvisioningRequestPodsFilter(t *testing.T) { | ||
| prPod1 := BuildTestPod("pr-pod-1", 500, 10) | ||
| prPod1.Annotations[provisioningRequestPodAnnotationKey] = "pr-class" | ||
|
|
||
| prPod2 := BuildTestPod("pr-pod-2", 500, 10) | ||
| prPod2.Annotations[provisioningRequestPodAnnotationKey] = "pr-class-2" | ||
|
|
||
| pod1 := BuildTestPod("pod-1", 500, 10) | ||
| pod2 := BuildTestPod("pod-2", 500, 10) | ||
|
|
||
| testCases := map[string]struct { | ||
| unschedulableCandidates []*apiv1.Pod | ||
| expectedUnscheduledPods []*apiv1.Pod | ||
| }{ | ||
| "ProvisioningRequest consumer is filtered out": { | ||
| unschedulableCandidates: []*v1.Pod{prPod1, pod1}, | ||
| expectedUnscheduledPods: []*v1.Pod{pod1}, | ||
| }, | ||
| "Different ProvisioningRequest consumers are filtered out": { | ||
| unschedulableCandidates: []*v1.Pod{prPod1, prPod2, pod1}, | ||
| expectedUnscheduledPods: []*v1.Pod{pod1}, | ||
| }, | ||
| "No pod is filtered": { | ||
| unschedulableCandidates: []*v1.Pod{pod1, pod2}, | ||
| expectedUnscheduledPods: []*v1.Pod{pod1, pod2}, | ||
| }, | ||
| "Empty unschedulable pods list": { | ||
| unschedulableCandidates: []*v1.Pod{}, | ||
| expectedUnscheduledPods: []*v1.Pod{}, | ||
| }, | ||
| "All ProvisioningRequest consumers are filtered out": { | ||
| unschedulableCandidates: []*v1.Pod{prPod1, prPod2}, | ||
| expectedUnscheduledPods: []*v1.Pod{}, | ||
| }, | ||
| } | ||
| for _, test := range testCases { | ||
| eventRecorder := record.NewFakeRecorder(10) | ||
| ctx := &context.AutoscalingContext{AutoscalingKubeClients: context.AutoscalingKubeClients{Recorder: eventRecorder}} | ||
| filter := NewProvisioningRequestPodsFilter(NewDefautlEventManager()) | ||
| got, _ := filter.Process(ctx, test.unschedulableCandidates) | ||
| assert.ElementsMatch(t, got, test.expectedUnscheduledPods) | ||
| if len(test.expectedUnscheduledPods) < len(test.expectedUnscheduledPods) { | ||
| select { | ||
| case event := <-eventRecorder.Events: | ||
| assert.Contains(t, event, "Unschedulable pod ignored in scale-up loop, because it's consuming ProvisioningRequest default/pr-class") | ||
| case <-time.After(1 * time.Second): | ||
| t.Errorf("Timeout waiting for event") | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func TestEventManager(t *testing.T) { | ||
| eventLimit := 5 | ||
| eventManager := &defaultEventManager{limit: eventLimit} | ||
| prFilter := NewProvisioningRequestPodsFilter(eventManager) | ||
| eventRecorder := record.NewFakeRecorder(10) | ||
| ctx := &context.AutoscalingContext{AutoscalingKubeClients: context.AutoscalingKubeClients{Recorder: eventRecorder}} | ||
| unscheduledPods := []*v1.Pod{BuildTestPod("pod", 500, 10)} | ||
|
|
||
| for i := 0; i < 10; i++ { | ||
| prPod := BuildTestPod(fmt.Sprintf("pr-pod-%d", i), 10, 10) | ||
| prPod.Annotations[provisioningRequestPodAnnotationKey] = "pr-class" | ||
| unscheduledPods = append(unscheduledPods, prPod) | ||
| } | ||
| got, err := prFilter.Process(ctx, unscheduledPods) | ||
| assert.NoError(t, err) | ||
| if len(got) != 1 { | ||
| t.Errorf("Want 1 unschedulable pod, got: %v", got) | ||
| } | ||
| assert.Equal(t, eventManager.loggedEvents, eventLimit) | ||
| for i := 0; i < eventLimit; i++ { | ||
| select { | ||
| case event := <-eventRecorder.Events: | ||
| assert.Contains(t, event, "Unschedulable pod ignored in scale-up loop, because it's consuming ProvisioningRequest default/pr-class") | ||
| case <-time.After(1 * time.Second): | ||
| t.Errorf("Timeout waiting for event") | ||
| } | ||
| } | ||
| select { | ||
| case <-eventRecorder.Events: | ||
| t.Errorf("Receive event after reaching event limit") | ||
| case <-time.After(1 * time.Millisecond): | ||
| return | ||
| } | ||
| } |
Oops, something went wrong.