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Code Issues Projects Releases Wiki Activity

Scheduler should use a shared informer

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Can be used either from a true shared informer or a local shared
informer created just for the scheduler.
This commit is contained in:
Clayton Coleman 2017-05-22 10:15:57 -04:00
parent 027c31e7dc
commit 8cd95c78c4
No known key found for this signature in database
GPG Key ID: 3D16906B4F1C5CB3
12 changed files with 196 additions and 38 deletions
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1
plugin/cmd/kube-scheduler/app/BUILD
View File

@ -24,6 +24,7 @@ go_library(
"//pkg/client/informers/informers_generated/externalversions/extensions/v1beta1:go_default_library",
"//pkg/client/leaderelection:go_default_library",
"//pkg/client/leaderelection/resourcelock:go_default_library",
"//pkg/controller:go_default_library",
"//pkg/util/configz:go_default_library",
"//plugin/cmd/kube-scheduler/app/options:go_default_library",
"//plugin/pkg/scheduler:go_default_library",

2
plugin/cmd/kube-scheduler/app/configurator.go
View File

@ -77,6 +77,7 @@ func CreateScheduler(
s *options.SchedulerServer,
kubecli *clientset.Clientset,
nodeInformer coreinformers.NodeInformer,
podInformer coreinformers.PodInformer,
pvInformer coreinformers.PersistentVolumeInformer,
pvcInformer coreinformers.PersistentVolumeClaimInformer,
replicationControllerInformer coreinformers.ReplicationControllerInformer,
@ -89,6 +90,7 @@ func CreateScheduler(
s.SchedulerName,
kubecli,
nodeInformer,
podInformer,
pvInformer,
pvcInformer,
replicationControllerInformer,

7
plugin/cmd/kube-scheduler/app/server.go
View File

@ -31,9 +31,11 @@ import (
informers "k8s.io/kubernetes/pkg/client/informers/informers_generated/externalversions"
"k8s.io/kubernetes/pkg/client/leaderelection"
"k8s.io/kubernetes/pkg/client/leaderelection/resourcelock"
"k8s.io/kubernetes/pkg/controller"
"k8s.io/kubernetes/pkg/util/configz"
"k8s.io/kubernetes/plugin/cmd/kube-scheduler/app/options"
_ "k8s.io/kubernetes/plugin/pkg/scheduler/algorithmprovider"
"k8s.io/kubernetes/plugin/pkg/scheduler/factory"
"github.com/golang/glog"
"github.com/prometheus/client_golang/prometheus"
@ -71,11 +73,14 @@ func Run(s *options.SchedulerServer) error {
recorder := createRecorder(kubecli, s)
informerFactory := informers.NewSharedInformerFactory(kubecli, 0)
// cache only non-terminal pods
podInformer := factory.NewPodInformer(kubecli, 0)
sched, err := CreateScheduler(
s,
kubecli,
informerFactory.Core().V1().Nodes(),
podInformer,
informerFactory.Core().V1().PersistentVolumes(),
informerFactory.Core().V1().PersistentVolumeClaims(),
informerFactory.Core().V1().ReplicationControllers(),
@ -92,9 +97,11 @@ func Run(s *options.SchedulerServer) error {
stop := make(chan struct{})
defer close(stop)
go podInformer.Informer().Run(stop)
informerFactory.Start(stop)
// Waiting for all cache to sync before scheduling.
informerFactory.WaitForCacheSync(stop)
controller.WaitForCacheSync("scheduler", stop, podInformer.Informer().HasSynced)
run := func(_ <-chan struct{}) {
sched.Run()

2
plugin/pkg/scheduler/BUILD
View File

@ -41,6 +41,7 @@ go_library(
],
tags = ["automanaged"],
deps = [
"//pkg/api:go_default_library",
"//pkg/api/v1:go_default_library",
"//pkg/client/clientset_generated/clientset:go_default_library",
"//pkg/client/listers/core/v1:go_default_library",
@ -52,6 +53,7 @@ go_library(
"//plugin/pkg/scheduler/util:go_default_library",
"//vendor/github.com/golang/glog:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/util/runtime:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/util/sets:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/util/wait:go_default_library",
"//vendor/k8s.io/client-go/tools/cache:go_default_library",

1
plugin/pkg/scheduler/algorithmprovider/defaults/compatibility_test.go
View File

@ -352,6 +352,7 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
"some-scheduler-name",
client,
informerFactory.Core().V1().Nodes(),
informerFactory.Core().V1().Pods(),
informerFactory.Core().V1().PersistentVolumes(),
informerFactory.Core().V1().PersistentVolumeClaims(),
informerFactory.Core().V1().ReplicationControllers(),

2
plugin/pkg/scheduler/factory/BUILD
View File

@ -38,6 +38,8 @@ go_library(
"//vendor/k8s.io/apimachinery/pkg/api/errors:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/fields:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/labels:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/runtime/schema:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/types:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/util/runtime:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/util/sets:go_default_library",

192
plugin/pkg/scheduler/factory/factory.go
View File

@ -26,6 +26,8 @@ import (
"k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/fields"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/runtime"
"k8s.io/apimachinery/pkg/util/sets"
@ -82,7 +84,7 @@ type ConfigFactory struct {
// Close this to stop all reflectors
StopEverything chan struct{}
scheduledPodPopulator cache.Controller
scheduledPodsHasSynced cache.InformerSynced
schedulerCache schedulercache.Cache
@ -105,6 +107,7 @@ func NewConfigFactory(
schedulerName string,
client clientset.Interface,
nodeInformer coreinformers.NodeInformer,
podInformer coreinformers.PodInformer,
pvInformer coreinformers.PersistentVolumeInformer,
pvcInformer coreinformers.PersistentVolumeClaimInformer,
replicationControllerInformer coreinformers.ReplicationControllerInformer,
@ -132,23 +135,60 @@ func NewConfigFactory(
hardPodAffinitySymmetricWeight: hardPodAffinitySymmetricWeight,
}
// On add/delete to the scheduled pods, remove from the assumed pods.
// We construct this here instead of in CreateFromKeys because
// ScheduledPodLister is something we provide to plug in functions that
// they may need to call.
var scheduledPodIndexer cache.Indexer
scheduledPodIndexer, c.scheduledPodPopulator = cache.NewIndexerInformer(
c.createAssignedNonTerminatedPodLW(),
&v1.Pod{},
0,
cache.ResourceEventHandlerFuncs{
AddFunc: c.addPodToCache,
UpdateFunc: c.updatePodInCache,
DeleteFunc: c.deletePodFromCache,
c.scheduledPodsHasSynced = podInformer.Informer().HasSynced
// scheduled pod cache
podInformer.Informer().AddEventHandler(
cache.FilteringResourceEventHandler{
FilterFunc: func(obj interface{}) bool {
switch t := obj.(type) {
case *v1.Pod:
return assignedNonTerminatedPod(t)
default:
runtime.HandleError(fmt.Errorf("unable to handle object in %T: %T", c, obj))
return false
}
},
Handler: cache.ResourceEventHandlerFuncs{
AddFunc: c.addPodToCache,
UpdateFunc: c.updatePodInCache,
DeleteFunc: c.deletePodFromCache,
},
},
cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc},
)
c.scheduledPodLister = corelisters.NewPodLister(scheduledPodIndexer)
// unscheduled pod queue
podInformer.Informer().AddEventHandler(
cache.FilteringResourceEventHandler{
FilterFunc: func(obj interface{}) bool {
switch t := obj.(type) {
case *v1.Pod:
return unassignedNonTerminatedPod(t)
default:
runtime.HandleError(fmt.Errorf("unable to handle object in %T: %T", c, obj))
return false
}
},
Handler: cache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
if err := c.podQueue.Add(obj); err != nil {
runtime.HandleError(fmt.Errorf("unable to queue %T: %v", obj, err))
}
},
UpdateFunc: func(oldObj, newObj interface{}) {
if err := c.podQueue.Update(newObj); err != nil {
runtime.HandleError(fmt.Errorf("unable to update %T: %v", newObj, err))
}
},
DeleteFunc: func(obj interface{}) {
if err := c.podQueue.Delete(obj); err != nil {
runtime.HandleError(fmt.Errorf("unable to dequeue %T: %v", obj, err))
}
},
},
},
)
// ScheduledPodLister is something we provide to plug-in functions that
// they may need to call.
c.scheduledPodLister = assignedPodLister{podInformer.Lister()}
// Only nodes in the "Ready" condition with status == "True" are schedulable
nodeInformer.Informer().AddEventHandlerWithResyncPeriod(
@ -369,7 +409,6 @@ func (f *ConfigFactory) CreateFromKeys(predicateKeys, priorityKeys sets.String,
return nil, err
}
f.Run()
// TODO(resouer) use equivalence cache instead of nil here when #36238 get merged
algo := core.NewGenericScheduler(f.schedulerCache, nil, predicateFuncs, predicateMetaProducer, priorityConfigs, priorityMetaProducer, extenders)
podBackoff := util.CreateDefaultPodBackoff()
@ -381,7 +420,7 @@ func (f *ConfigFactory) CreateFromKeys(predicateKeys, priorityKeys sets.String,
Binder: &binder{f.client},
PodConditionUpdater: &podConditionUpdater{f.client},
WaitForCacheSync: func() bool {
return cache.WaitForCacheSync(f.StopEverything, f.scheduledPodPopulator.HasSynced)
return cache.WaitForCacheSync(f.StopEverything, f.scheduledPodsHasSynced)
},
NextPod: func() *v1.Pod {
return f.getNextPod()
@ -450,14 +489,6 @@ func (f *ConfigFactory) getPluginArgs() (*PluginFactoryArgs, error) {
}, nil
}
func (f *ConfigFactory) Run() {
// Watch and queue pods that need scheduling.
cache.NewReflector(f.createUnassignedNonTerminatedPodLW(), &v1.Pod{}, f.podQueue, 0).RunUntil(f.StopEverything)
// Begin populating scheduled pods.
go f.scheduledPodPopulator.Run(f.StopEverything)
}
func (f *ConfigFactory) getNextPod() *v1.Pod {
for {
pod := cache.Pop(f.podQueue).(*v1.Pod)
@ -500,19 +531,106 @@ func getNodeConditionPredicate() corelisters.NodeConditionPredicate {
}
}
// Returns a cache.ListWatch that finds all pods that need to be
// scheduled.
func (factory *ConfigFactory) createUnassignedNonTerminatedPodLW() *cache.ListWatch {
selector := fields.ParseSelectorOrDie("spec.nodeName==" + "" + ",status.phase!=" + string(v1.PodSucceeded) + ",status.phase!=" + string(v1.PodFailed))
return cache.NewListWatchFromClient(factory.client.Core().RESTClient(), "pods", metav1.NamespaceAll, selector)
// unassignedNonTerminatedPod selects pods that are unassigned and non-terminal.
func unassignedNonTerminatedPod(pod *v1.Pod) bool {
if len(pod.Spec.NodeName) != 0 {
return false
}
if pod.Status.Phase == v1.PodSucceeded || pod.Status.Phase == v1.PodFailed {
return false
}
return true
}
// Returns a cache.ListWatch that finds all pods that are
// already scheduled.
// TODO: return a ListerWatcher interface instead?
func (factory *ConfigFactory) createAssignedNonTerminatedPodLW() *cache.ListWatch {
selector := fields.ParseSelectorOrDie("spec.nodeName!=" + "" + ",status.phase!=" + string(v1.PodSucceeded) + ",status.phase!=" + string(v1.PodFailed))
return cache.NewListWatchFromClient(factory.client.Core().RESTClient(), "pods", metav1.NamespaceAll, selector)
// assignedNonTerminatedPod selects pods that are assigned and non-terminal (scheduled and running).
func assignedNonTerminatedPod(pod *v1.Pod) bool {
if len(pod.Spec.NodeName) == 0 {
return false
}
if pod.Status.Phase == v1.PodSucceeded || pod.Status.Phase == v1.PodFailed {
return false
}
return true
}
// assignedPodLister filters the pods returned from a PodLister to
// only include those that have a node name set.
type assignedPodLister struct {
corelisters.PodLister
}
// List lists all Pods in the indexer for a given namespace.
func (l assignedPodLister) List(selector labels.Selector) ([]*v1.Pod, error) {
list, err := l.PodLister.List(selector)
if err != nil {
return nil, err
}
filtered := make([]*v1.Pod, 0, len(list))
for _, pod := range list {
if len(pod.Spec.NodeName) > 0 {
filtered = append(filtered, pod)
}
}
return filtered, nil
}
// List lists all Pods in the indexer for a given namespace.
func (l assignedPodLister) Pods(namespace string) corelisters.PodNamespaceLister {
return assignedPodNamespaceLister{l.PodLister.Pods(namespace)}
}
// assignedPodNamespaceLister filters the pods returned from a PodNamespaceLister to
// only include those that have a node name set.
type assignedPodNamespaceLister struct {
corelisters.PodNamespaceLister
}
// List lists all Pods in the indexer for a given namespace.
func (l assignedPodNamespaceLister) List(selector labels.Selector) (ret []*v1.Pod, err error) {
list, err := l.PodNamespaceLister.List(selector)
if err != nil {
return nil, err
}
filtered := make([]*v1.Pod, 0, len(list))
for _, pod := range list {
if len(pod.Spec.NodeName) > 0 {
filtered = append(filtered, pod)
}
}
return filtered, nil
}
// Get retrieves the Pod from the indexer for a given namespace and name.
func (l assignedPodNamespaceLister) Get(name string) (*v1.Pod, error) {
pod, err := l.PodNamespaceLister.Get(name)
if err != nil {
return nil, err
}
if len(pod.Spec.NodeName) > 0 {
return pod, nil
}
return nil, errors.NewNotFound(schema.GroupResource{Resource: "pods"}, name)
}
type podInformer struct {
informer cache.SharedIndexInformer
}
func (i *podInformer) Informer() cache.SharedIndexInformer {
return i.informer
}
func (i *podInformer) Lister() corelisters.PodLister {
return corelisters.NewPodLister(i.informer.GetIndexer())
}
// NewPodInformer creates a shared index informer that returns only non-terminal pods.
func NewPodInformer(client clientset.Interface, resyncPeriod time.Duration) coreinformers.PodInformer {
selector := fields.ParseSelectorOrDie("status.phase!=" + string(v1.PodSucceeded) + ",status.phase!=" + string(v1.PodFailed))
lw := cache.NewListWatchFromClient(client.Core().RESTClient(), "pods", metav1.NamespaceAll, selector)
return &podInformer{
informer: cache.NewSharedIndexInformer(lw, &v1.Pod{}, resyncPeriod, cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc}),
}
}
func (factory *ConfigFactory) MakeDefaultErrorFunc(backoff *util.PodBackoff, podQueue *cache.FIFO) func(pod *v1.Pod, err error) {

8
plugin/pkg/scheduler/factory/factory_test.go
View File

@ -55,6 +55,7 @@ func TestCreate(t *testing.T) {
v1.DefaultSchedulerName,
client,
informerFactory.Core().V1().Nodes(),
informerFactory.Core().V1().Pods(),
informerFactory.Core().V1().PersistentVolumes(),
informerFactory.Core().V1().PersistentVolumeClaims(),
informerFactory.Core().V1().ReplicationControllers(),
@ -85,6 +86,7 @@ func TestCreateFromConfig(t *testing.T) {
v1.DefaultSchedulerName,
client,
informerFactory.Core().V1().Nodes(),
informerFactory.Core().V1().Pods(),
informerFactory.Core().V1().PersistentVolumes(),
informerFactory.Core().V1().PersistentVolumeClaims(),
informerFactory.Core().V1().ReplicationControllers(),
@ -138,6 +140,7 @@ func TestCreateFromEmptyConfig(t *testing.T) {
v1.DefaultSchedulerName,
client,
informerFactory.Core().V1().Nodes(),
informerFactory.Core().V1().Pods(),
informerFactory.Core().V1().PersistentVolumes(),
informerFactory.Core().V1().PersistentVolumeClaims(),
informerFactory.Core().V1().ReplicationControllers(),
@ -193,6 +196,7 @@ func TestDefaultErrorFunc(t *testing.T) {
v1.DefaultSchedulerName,
client,
informerFactory.Core().V1().Nodes(),
informerFactory.Core().V1().Pods(),
informerFactory.Core().V1().PersistentVolumes(),
informerFactory.Core().V1().PersistentVolumeClaims(),
informerFactory.Core().V1().ReplicationControllers(),
@ -304,6 +308,7 @@ func TestResponsibleForPod(t *testing.T) {
v1.DefaultSchedulerName,
client,
informerFactory.Core().V1().Nodes(),
informerFactory.Core().V1().Pods(),
informerFactory.Core().V1().PersistentVolumes(),
informerFactory.Core().V1().PersistentVolumeClaims(),
informerFactory.Core().V1().ReplicationControllers(),
@ -317,6 +322,7 @@ func TestResponsibleForPod(t *testing.T) {
"foo-scheduler",
client,
informerFactory.Core().V1().Nodes(),
informerFactory.Core().V1().Pods(),
informerFactory.Core().V1().PersistentVolumes(),
informerFactory.Core().V1().PersistentVolumeClaims(),
informerFactory.Core().V1().ReplicationControllers(),
@ -385,6 +391,7 @@ func TestInvalidHardPodAffinitySymmetricWeight(t *testing.T) {
v1.DefaultSchedulerName,
client,
informerFactory.Core().V1().Nodes(),
informerFactory.Core().V1().Pods(),
informerFactory.Core().V1().PersistentVolumes(),
informerFactory.Core().V1().PersistentVolumeClaims(),
informerFactory.Core().V1().ReplicationControllers(),
@ -429,6 +436,7 @@ func TestInvalidFactoryArgs(t *testing.T) {
v1.DefaultSchedulerName,
client,
informerFactory.Core().V1().Nodes(),
informerFactory.Core().V1().Pods(),
informerFactory.Core().V1().PersistentVolumes(),
informerFactory.Core().V1().PersistentVolumeClaims(),
informerFactory.Core().V1().ReplicationControllers(),

10
plugin/pkg/scheduler/scheduler.go
View File

@ -20,10 +20,12 @@ import (
"time"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/runtime"
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/client-go/tools/cache"
"k8s.io/client-go/tools/record"
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/v1"
"k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
corelisters "k8s.io/kubernetes/pkg/client/listers/core/v1"
@ -35,6 +37,7 @@ import (
"k8s.io/kubernetes/plugin/pkg/scheduler/util"
"fmt"
"github.com/golang/glog"
)
@ -80,7 +83,6 @@ type Configurator interface {
GetNodeLister() corelisters.NodeLister
GetClient() clientset.Interface
GetScheduledPodLister() corelisters.PodLister
Run()
Create() (*Config, error)
CreateFromProvider(providerName string) (*Config, error)
@ -164,6 +166,12 @@ func (sched *Scheduler) schedule(pod *v1.Pod) (string, error) {
host, err := sched.config.Algorithm.Schedule(pod, sched.config.NodeLister)
if err != nil {
glog.V(1).Infof("Failed to schedule pod: %v/%v", pod.Namespace, pod.Name)
copied, cerr := api.Scheme.Copy(pod)
if cerr != nil {
runtime.HandleError(err)
return "", err
}
pod = copied.(*v1.Pod)
sched.config.Error(pod, err)
sched.config.Recorder.Eventf(pod, v1.EventTypeWarning, "FailedScheduling", "%v", err)
sched.config.PodConditionUpdater.Update(pod, &v1.PodCondition{

1
test/integration/scheduler/extender_test.go
View File

@ -326,6 +326,7 @@ func TestSchedulerExtender(t *testing.T) {
v1.DefaultSchedulerName,
clientSet,
informerFactory.Core().V1().Nodes(),
informerFactory.Core().V1().Pods(),
informerFactory.Core().V1().PersistentVolumes(),
informerFactory.Core().V1().PersistentVolumeClaims(),
informerFactory.Core().V1().ReplicationControllers(),

7
test/integration/scheduler/scheduler_test.go
View File

@ -122,6 +122,7 @@ func TestSchedulerCreationFromConfigMap(t *testing.T) {
ss.PolicyConfigMapName = configPolicyName
sched, err := app.CreateScheduler(ss, clientSet,
informerFactory.Core().V1().Nodes(),
informerFactory.Core().V1().Pods(),
informerFactory.Core().V1().PersistentVolumes(),
informerFactory.Core().V1().PersistentVolumeClaims(),
informerFactory.Core().V1().ReplicationControllers(),
@ -174,6 +175,7 @@ func TestSchedulerCreationFromNonExistentConfigMap(t *testing.T) {
_, err := app.CreateScheduler(ss, clientSet,
informerFactory.Core().V1().Nodes(),
informerFactory.Core().V1().Pods(),
informerFactory.Core().V1().PersistentVolumes(),
informerFactory.Core().V1().PersistentVolumeClaims(),
informerFactory.Core().V1().ReplicationControllers(),
@ -211,6 +213,7 @@ func TestSchedulerCreationInLegacyMode(t *testing.T) {
sched, err := app.CreateScheduler(ss, clientSet,
informerFactory.Core().V1().Nodes(),
informerFactory.Core().V1().Pods(),
informerFactory.Core().V1().PersistentVolumes(),
informerFactory.Core().V1().PersistentVolumeClaims(),
informerFactory.Core().V1().ReplicationControllers(),
@ -245,6 +248,7 @@ func TestUnschedulableNodes(t *testing.T) {
v1.DefaultSchedulerName,
clientSet,
informerFactory.Core().V1().Nodes(),
informerFactory.Core().V1().Pods(),
informerFactory.Core().V1().PersistentVolumes(),
informerFactory.Core().V1().PersistentVolumeClaims(),
informerFactory.Core().V1().ReplicationControllers(),
@ -527,6 +531,7 @@ func TestMultiScheduler(t *testing.T) {
v1.DefaultSchedulerName,
clientSet,
informerFactory.Core().V1().Nodes(),
informerFactory.Core().V1().Pods(),
informerFactory.Core().V1().PersistentVolumes(),
informerFactory.Core().V1().PersistentVolumeClaims(),
informerFactory.Core().V1().ReplicationControllers(),
@ -612,6 +617,7 @@ func TestMultiScheduler(t *testing.T) {
"foo-scheduler",
clientSet2,
informerFactory.Core().V1().Nodes(),
informerFactory.Core().V1().Pods(),
informerFactory.Core().V1().PersistentVolumes(),
informerFactory.Core().V1().PersistentVolumeClaims(),
informerFactory.Core().V1().ReplicationControllers(),
@ -721,6 +727,7 @@ func TestAllocatable(t *testing.T) {
v1.DefaultSchedulerName,
clientSet,
informerFactory.Core().V1().Nodes(),
informerFactory.Core().V1().Pods(),
informerFactory.Core().V1().PersistentVolumes(),
informerFactory.Core().V1().PersistentVolumeClaims(),
informerFactory.Core().V1().ReplicationControllers(),

1
test/integration/scheduler_perf/util.go
View File

@ -65,6 +65,7 @@ func mustSetupScheduler() (schedulerConfigurator scheduler.Configurator, destroy
v1.DefaultSchedulerName,
clientSet,
informerFactory.Core().V1().Nodes(),
informerFactory.Core().V1().Pods(),
informerFactory.Core().V1().PersistentVolumes(),
informerFactory.Core().V1().PersistentVolumeClaims(),
informerFactory.Core().V1().ReplicationControllers(),