mirror of
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129 lines
5.0 KiB
Go
129 lines
5.0 KiB
Go
/*
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Copyright 2018 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 util
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import (
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"net/http"
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"net/http/httptest"
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"k8s.io/api/core/v1"
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"k8s.io/client-go/informers"
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clientset "k8s.io/client-go/kubernetes"
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clientv1core "k8s.io/client-go/kubernetes/typed/core/v1"
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"k8s.io/client-go/tools/record"
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"k8s.io/klog"
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"k8s.io/kubernetes/pkg/api/legacyscheme"
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"k8s.io/kubernetes/pkg/scheduler"
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schedulerapi "k8s.io/kubernetes/pkg/scheduler/api"
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"k8s.io/kubernetes/pkg/scheduler/factory"
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"k8s.io/kubernetes/test/integration/framework"
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)
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// ShutdownFunc represents the function handle to be called, typically in a defer handler, to shutdown a running module
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type ShutdownFunc func()
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// StartApiserver starts a local API server for testing and returns the handle to the URL and the shutdown function to stop it.
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func StartApiserver() (string, ShutdownFunc) {
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h := &framework.MasterHolder{Initialized: make(chan struct{})}
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s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
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<-h.Initialized
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h.M.GenericAPIServer.Handler.ServeHTTP(w, req)
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}))
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framework.RunAMasterUsingServer(framework.NewIntegrationTestMasterConfig(), s, h)
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shutdownFunc := func() {
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klog.Infof("destroying API server")
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s.Close()
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klog.Infof("destroyed API server")
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}
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return s.URL, shutdownFunc
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}
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// StartScheduler configures and starts a scheduler given a handle to the clientSet interface
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// and event broadcaster. It returns a handle to the configurator for the running scheduler
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// and the shutdown function to stop it.
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func StartScheduler(clientSet clientset.Interface) (factory.Configurator, ShutdownFunc) {
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informerFactory := informers.NewSharedInformerFactory(clientSet, 0)
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evtBroadcaster := record.NewBroadcaster()
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evtWatch := evtBroadcaster.StartRecordingToSink(&clientv1core.EventSinkImpl{
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Interface: clientSet.CoreV1().Events("")})
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stopCh := make(chan struct{})
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schedulerConfigurator := createSchedulerConfigurator(clientSet, informerFactory, stopCh)
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config, err := schedulerConfigurator.CreateFromConfig(schedulerapi.Policy{})
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if err != nil {
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klog.Fatalf("Error creating scheduler: %v", err)
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}
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config.Recorder = evtBroadcaster.NewRecorder(legacyscheme.Scheme, v1.EventSource{Component: "scheduler"})
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sched := scheduler.NewFromConfig(config)
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scheduler.AddAllEventHandlers(sched,
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v1.DefaultSchedulerName,
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informerFactory.Core().V1().Nodes(),
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informerFactory.Core().V1().Pods(),
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informerFactory.Core().V1().PersistentVolumes(),
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informerFactory.Core().V1().PersistentVolumeClaims(),
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informerFactory.Core().V1().ReplicationControllers(),
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informerFactory.Apps().V1().ReplicaSets(),
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informerFactory.Apps().V1().StatefulSets(),
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informerFactory.Core().V1().Services(),
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informerFactory.Policy().V1beta1().PodDisruptionBudgets(),
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informerFactory.Storage().V1().StorageClasses(),
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)
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informerFactory.Start(stopCh)
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sched.Run()
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shutdownFunc := func() {
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klog.Infof("destroying scheduler")
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evtWatch.Stop()
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close(stopCh)
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klog.Infof("destroyed scheduler")
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}
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return schedulerConfigurator, shutdownFunc
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}
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// createSchedulerConfigurator create a configurator for scheduler with given informer factory and default name.
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func createSchedulerConfigurator(
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clientSet clientset.Interface,
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informerFactory informers.SharedInformerFactory,
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stopCh <-chan struct{},
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) factory.Configurator {
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return factory.NewConfigFactory(&factory.ConfigFactoryArgs{
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SchedulerName: v1.DefaultSchedulerName,
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Client: clientSet,
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NodeInformer: informerFactory.Core().V1().Nodes(),
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PodInformer: informerFactory.Core().V1().Pods(),
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PvInformer: informerFactory.Core().V1().PersistentVolumes(),
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PvcInformer: informerFactory.Core().V1().PersistentVolumeClaims(),
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ReplicationControllerInformer: informerFactory.Core().V1().ReplicationControllers(),
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ReplicaSetInformer: informerFactory.Apps().V1().ReplicaSets(),
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StatefulSetInformer: informerFactory.Apps().V1().StatefulSets(),
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ServiceInformer: informerFactory.Core().V1().Services(),
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PdbInformer: informerFactory.Policy().V1beta1().PodDisruptionBudgets(),
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StorageClassInformer: informerFactory.Storage().V1().StorageClasses(),
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HardPodAffinitySymmetricWeight: v1.DefaultHardPodAffinitySymmetricWeight,
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DisablePreemption: false,
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PercentageOfNodesToScore: schedulerapi.DefaultPercentageOfNodesToScore,
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StopCh: stopCh,
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})
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}
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