k3s/vendor/k8s.io/kubernetes/cmd/kube-controller-manager/app/policy.go
Brad Davidson e8381db778 Update Kubernetes to v1.21.0
* Update Kubernetes to v1.21.0
* Update to golang v1.16.2
* Update dependent modules to track with upstream
* Switch to upstream flannel
* Track changes to upstream cloud-controller-manager and FeatureGates

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
2021-04-14 14:51:42 -07:00

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.Infof("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
}