mirror of
https://github.com/kubernetes/kubernetes.git
synced 2026-05-28 04:04:39 -04:00
118 lines
3.3 KiB
Go
118 lines
3.3 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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apiextensionsclientset "k8s.io/apiextensions-apiserver/pkg/client/clientset/clientset"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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"k8s.io/client-go/discovery"
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"k8s.io/client-go/dynamic"
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clientgofeaturegate "k8s.io/client-go/features"
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"k8s.io/client-go/metadata"
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"k8s.io/kubernetes/cmd/kube-controller-manager/names"
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svm "k8s.io/kubernetes/pkg/controller/storageversionmigrator"
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"k8s.io/kubernetes/pkg/features"
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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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constructor: newSVMController,
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}
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}
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func newSVMController(ctx context.Context, controllerContext ControllerContext, controllerName string) (Controller, 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, nil
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}
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if !controllerContext.ComponentConfig.GarbageCollectorController.EnableGarbageCollector {
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return nil, fmt.Errorf("storage version migrator requires garbage collector")
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}
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if !clientgofeaturegate.FeatureGates().Enabled(clientgofeaturegate.InOrderInformers) {
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err := fmt.Errorf("storage version migrator requires the InOrderInformers feature gate to be enabled")
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return nil, err
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}
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// svm controller can make a lot of requests during migration, keep it fast
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config, err := controllerContext.NewClientConfig(controllerName)
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if err != nil {
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return nil, err
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}
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config.QPS *= 20
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config.Burst *= 100
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client, err := controllerContext.NewClient(controllerName)
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if err != nil {
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return nil, err
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}
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informer := controllerContext.InformerFactory.Storagemigration().V1beta1().StorageVersionMigrations()
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crdClientset, err := apiextensionsclientset.NewForConfig(config)
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if err != nil {
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return nil, err
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}
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dynamicClient, err := dynamic.NewForConfig(config)
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if err != nil {
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return nil, 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, err
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}
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metaClient, err := metadata.NewForConfig(config)
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if err != nil {
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return nil, fmt.Errorf("failed to create metadata client for %s: %w", controllerName, err)
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}
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return newControllerLoop(concurrentRun(
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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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).Run,
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svm.NewResourceVersionController(
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ctx,
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client,
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discoveryClient,
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metaClient,
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informer,
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controllerContext.RESTMapper,
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).Run,
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svm.NewCustomResourceController(
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ctx,
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client,
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informer,
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crdClientset.ApiextensionsV1().CustomResourceDefinitions(),
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).Run,
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), controllerName), nil
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}
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