93 lines
2.6 KiB
Go
93 lines
2.6 KiB
Go
/*
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Copyright 2024 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package app
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import (
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"context"
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"fmt"
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"k8s.io/client-go/discovery"
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"k8s.io/client-go/dynamic"
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"k8s.io/client-go/metadata"
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"k8s.io/controller-manager/controller"
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"k8s.io/kubernetes/cmd/kube-controller-manager/names"
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"k8s.io/kubernetes/pkg/features"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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clientgofeaturegate "k8s.io/client-go/features"
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svm "k8s.io/kubernetes/pkg/controller/storageversionmigrator"
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)
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func newStorageVersionMigratorControllerDescriptor() *ControllerDescriptor {
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return &ControllerDescriptor{
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name: names.StorageVersionMigratorController,
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aliases: []string{"svm"},
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initFunc: startSVMController,
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}
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}
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func startSVMController(
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ctx context.Context,
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controllerContext ControllerContext,
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controllerName string,
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) (controller.Interface, bool, error) {
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if !utilfeature.DefaultFeatureGate.Enabled(features.StorageVersionMigrator) ||
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!clientgofeaturegate.FeatureGates().Enabled(clientgofeaturegate.InformerResourceVersion) {
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return nil, false, nil
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}
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if !controllerContext.ComponentConfig.GarbageCollectorController.EnableGarbageCollector {
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return nil, true, fmt.Errorf("storage version migrator requires garbage collector")
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}
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config := controllerContext.ClientBuilder.ConfigOrDie(controllerName)
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client := controllerContext.ClientBuilder.ClientOrDie(controllerName)
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informer := controllerContext.InformerFactory.Storagemigration().V1alpha1().StorageVersionMigrations()
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dynamicClient, err := dynamic.NewForConfig(config)
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if err != nil {
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return nil, false, err
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}
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discoveryClient, err := discovery.NewDiscoveryClientForConfig(config)
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if err != nil {
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return nil, false, err
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}
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go svm.NewResourceVersionController(
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ctx,
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client,
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discoveryClient,
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metadata.NewForConfigOrDie(config),
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informer,
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controllerContext.RESTMapper,
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).Run(ctx)
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svmController := svm.NewSVMController(
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ctx,
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client,
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dynamicClient,
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informer,
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controllerName,
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controllerContext.RESTMapper,
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controllerContext.GraphBuilder,
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)
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go svmController.Run(ctx)
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return svmController, true, nil
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}
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