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Add ProvisioningRequestProcessor (kubernetes#6488)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| /* | ||
| Copyright 2024 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. | ||
| */ | ||
|
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| package loopstart | ||
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| // Observer interface is used to store object that needed to be refreshed in each CA loop. | ||
| // It returns error and a bool value whether the loop should be skipped. | ||
| type Observer interface { | ||
| Refresh() | ||
| } | ||
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| // ObserversList interface is used to store objects that needed to be refreshed in each CA loop. | ||
| type ObserversList struct { | ||
| observers []Observer | ||
| } | ||
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| // Refresh refresh observers each CA loop. | ||
| func (l *ObserversList) Refresh() { | ||
| for _, observer := range l.observers { | ||
| observer.Refresh() | ||
| } | ||
| } | ||
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| // NewObserversList return new ObserversList. | ||
| func NewObserversList(observers []Observer) *ObserversList { | ||
| return &ObserversList{observers} | ||
| } |
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cluster-autoscaler/processors/provreq/provisioning_request_processor.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| /* | ||
| Copyright 2024 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. | ||
| */ | ||
|
|
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| package provreq | ||
|
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| import ( | ||
| "k8s.io/autoscaler/cluster-autoscaler/observers/loopstart" | ||
| "k8s.io/autoscaler/cluster-autoscaler/provisioningrequest/provreqclient" | ||
| "k8s.io/autoscaler/cluster-autoscaler/provisioningrequest/provreqwrapper" | ||
| "k8s.io/client-go/rest" | ||
| "k8s.io/klog/v2" | ||
| ) | ||
|
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| // ProvisioningRequestProcessor process ProvisioningRequests in the cluster. | ||
| type ProvisioningRequestProcessor interface { | ||
| Process([]*provreqwrapper.ProvisioningRequest) | ||
| CleanUp() | ||
| } | ||
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| type provisioningRequestClient interface { | ||
| ProvisioningRequests() ([]*provreqwrapper.ProvisioningRequest, error) | ||
| ProvisioningRequest(namespace, name string) (*provreqwrapper.ProvisioningRequest, error) | ||
| } | ||
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| // CombinedProvReqProcessor is responsible for processing ProvisioningRequest for each ProvisioningClass | ||
| // every CA loop and updating conditions for expired ProvisioningRequests. | ||
| type CombinedProvReqProcessor struct { | ||
| client provisioningRequestClient | ||
| processors []ProvisioningRequestProcessor | ||
| } | ||
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| // NewCombinedProvReqProcessor return new CombinedProvReqProcessor. | ||
| func NewCombinedProvReqProcessor(kubeConfig *rest.Config, processors []ProvisioningRequestProcessor) (loopstart.Observer, error) { | ||
| client, err := provreqclient.NewProvisioningRequestClient(kubeConfig) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return &CombinedProvReqProcessor{client: client, processors: processors}, nil | ||
| } | ||
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| // Refresh iterates over ProvisioningRequests and updates its conditions/state. | ||
| func (cp *CombinedProvReqProcessor) Refresh() { | ||
| provReqs, err := cp.client.ProvisioningRequests() | ||
| if err != nil { | ||
| klog.Errorf("Failed to get ProvisioningRequests list, err: %v", err) | ||
| return | ||
| } | ||
| for _, p := range cp.processors { | ||
| p.Process(provReqs) | ||
| } | ||
| } | ||
|
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| // CleanUp cleans up internal state | ||
| func (cp *CombinedProvReqProcessor) CleanUp() {} |
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