50 lines
1.7 KiB
Go
50 lines
1.7 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 (
|
|
"k8s.io/apimachinery/pkg/runtime/schema"
|
|
"k8s.io/kubernetes/pkg/controller/podautoscaler"
|
|
"k8s.io/kubernetes/pkg/controller/podautoscaler/metrics"
|
|
)
|
|
|
|
func startHPAController(ctx ControllerContext) (bool, error) {
|
|
if !ctx.AvailableResources[schema.GroupVersionResource{Group: "autoscaling", Version: "v1", Resource: "horizontalpodautoscalers"}] {
|
|
return false, nil
|
|
}
|
|
hpaClient := ctx.ClientBuilder.ClientOrDie("horizontal-pod-autoscaler")
|
|
metricsClient := metrics.NewHeapsterMetricsClient(
|
|
hpaClient,
|
|
metrics.DefaultHeapsterNamespace,
|
|
metrics.DefaultHeapsterScheme,
|
|
metrics.DefaultHeapsterService,
|
|
metrics.DefaultHeapsterPort,
|
|
)
|
|
replicaCalc := podautoscaler.NewReplicaCalculator(metricsClient, hpaClient.Core())
|
|
go podautoscaler.NewHorizontalController(
|
|
hpaClient.Core(),
|
|
hpaClient.Extensions(),
|
|
hpaClient.Autoscaling(),
|
|
replicaCalc,
|
|
ctx.Options.HorizontalPodAutoscalerSyncPeriod.Duration,
|
|
).Run(ctx.Stop)
|
|
return true, nil
|
|
}
|