mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-10-31 22:01:06 +00:00
63 lines
2.0 KiB
Go
63 lines
2.0 KiB
Go
/*
|
|
Copyright 2016 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 app implements a server that runs a set of active
|
|
// components. This includes replication controllers, service endpoints and
|
|
// nodes.
|
|
//
|
|
package app
|
|
|
|
import (
|
|
"net/http"
|
|
|
|
"k8s.io/klog/v2"
|
|
|
|
utilfeature "k8s.io/apiserver/pkg/util/feature"
|
|
"k8s.io/client-go/dynamic"
|
|
"k8s.io/client-go/scale"
|
|
"k8s.io/kubernetes/pkg/controller/disruption"
|
|
kubefeatures "k8s.io/kubernetes/pkg/features"
|
|
)
|
|
|
|
func startDisruptionController(ctx ControllerContext) (http.Handler, bool, error) {
|
|
if !utilfeature.DefaultFeatureGate.Enabled(kubefeatures.PodDisruptionBudget) {
|
|
klog.InfoS("Refusing to start disruption because the PodDisruptionBudget feature is disabled")
|
|
return nil, false, nil
|
|
}
|
|
|
|
client := ctx.ClientBuilder.ClientOrDie("disruption-controller")
|
|
config := ctx.ClientBuilder.ConfigOrDie("disruption-controller")
|
|
scaleKindResolver := scale.NewDiscoveryScaleKindResolver(client.Discovery())
|
|
scaleClient, err := scale.NewForConfig(config, ctx.RESTMapper, dynamic.LegacyAPIPathResolverFunc, scaleKindResolver)
|
|
if err != nil {
|
|
return nil, false, err
|
|
}
|
|
|
|
go disruption.NewDisruptionController(
|
|
ctx.InformerFactory.Core().V1().Pods(),
|
|
ctx.InformerFactory.Policy().V1().PodDisruptionBudgets(),
|
|
ctx.InformerFactory.Core().V1().ReplicationControllers(),
|
|
ctx.InformerFactory.Apps().V1().ReplicaSets(),
|
|
ctx.InformerFactory.Apps().V1().Deployments(),
|
|
ctx.InformerFactory.Apps().V1().StatefulSets(),
|
|
client,
|
|
ctx.RESTMapper,
|
|
scaleClient,
|
|
client.Discovery(),
|
|
).Run(ctx.Stop)
|
|
return nil, true, nil
|
|
}
|