Add support for statefulset spreading to the scheduler

plugin/cmd/kube-scheduler/app/BUILD

@@ -19,6 +19,7 @@ go_library(
         "//pkg/api:go_default_library",
         "//pkg/client/clientset_generated/clientset:go_default_library",
         "//pkg/client/informers/informers_generated/externalversions:go_default_library",
+        "//pkg/client/informers/informers_generated/externalversions/apps/v1beta1:go_default_library",
         "//pkg/client/informers/informers_generated/externalversions/core/v1:go_default_library",
         "//pkg/client/informers/informers_generated/externalversions/extensions/v1beta1:go_default_library",
         "//pkg/client/leaderelection:go_default_library",

plugin/cmd/kube-scheduler/app/configurator.go

@@ -21,6 +21,7 @@ import (
 	"io/ioutil"
 	"os"
 
+	appsinformers "k8s.io/kubernetes/pkg/client/informers/informers_generated/externalversions/apps/v1beta1"
 	coreinformers "k8s.io/kubernetes/pkg/client/informers/informers_generated/externalversions/core/v1"
 	extensionsinformers "k8s.io/kubernetes/pkg/client/informers/informers_generated/externalversions/extensions/v1beta1"
 	"k8s.io/kubernetes/plugin/cmd/kube-scheduler/app/options"
@@ -79,6 +80,7 @@ func createScheduler(
 	pvcInformer coreinformers.PersistentVolumeClaimInformer,
 	replicationControllerInformer coreinformers.ReplicationControllerInformer,
 	replicaSetInformer extensionsinformers.ReplicaSetInformer,
+	statefulSetInformer appsinformers.StatefulSetInformer,
 	serviceInformer coreinformers.ServiceInformer,
 	recorder record.EventRecorder,
 ) (*scheduler.Scheduler, error) {
@@ -90,6 +92,7 @@ func createScheduler(
 		pvcInformer,
 		replicationControllerInformer,
 		replicaSetInformer,
+		statefulSetInformer,
 		serviceInformer,
 		s.HardPodAffinitySymmetricWeight,
 	)

plugin/cmd/kube-scheduler/app/server.go

@@ -81,6 +81,7 @@ func Run(s *options.SchedulerServer) error {
 		informerFactory.Core().V1().PersistentVolumeClaims(),
 		informerFactory.Core().V1().ReplicationControllers(),
 		informerFactory.Extensions().V1beta1().ReplicaSets(),
+		informerFactory.Apps().V1beta1().StatefulSets(),
 		informerFactory.Core().V1().Services(),
 		recorder,
 	)

plugin/pkg/scheduler/algorithm/BUILD

@@ -18,6 +18,7 @@ go_library(
     tags = ["automanaged"],
     deps = [
         "//pkg/api/v1:go_default_library",
+        "//pkg/apis/apps/v1beta1:go_default_library",
         "//pkg/apis/extensions/v1beta1:go_default_library",
         "//plugin/pkg/scheduler/api:go_default_library",
         "//plugin/pkg/scheduler/schedulercache:go_default_library",

plugin/pkg/scheduler/algorithm/priorities/BUILD

@@ -60,6 +60,7 @@ go_test(
     tags = ["automanaged"],
     deps = [
         "//pkg/api/v1:go_default_library",
+        "//pkg/apis/apps/v1beta1:go_default_library",
         "//pkg/apis/extensions/v1beta1:go_default_library",
         "//plugin/pkg/scheduler/algorithm/priorities/util:go_default_library",
         "//plugin/pkg/scheduler/api:go_default_library",

plugin/pkg/scheduler/algorithm/priorities/selector_spreading.go

@@ -39,25 +39,28 @@ const maxPriority float32 = 10
 const zoneWeighting = 2.0 / 3.0
 
 type SelectorSpread struct {
-	serviceLister    algorithm.ServiceLister
-	controllerLister algorithm.ControllerLister
-	replicaSetLister algorithm.ReplicaSetLister
+	serviceLister     algorithm.ServiceLister
+	controllerLister  algorithm.ControllerLister
+	replicaSetLister  algorithm.ReplicaSetLister
+	statefulSetLister algorithm.StatefulSetLister
 }
 
 func NewSelectorSpreadPriority(
 	serviceLister algorithm.ServiceLister,
 	controllerLister algorithm.ControllerLister,
-	replicaSetLister algorithm.ReplicaSetLister) algorithm.PriorityFunction {
+	replicaSetLister algorithm.ReplicaSetLister,
+	statefulSetLister algorithm.StatefulSetLister) algorithm.PriorityFunction {
 	selectorSpread := &SelectorSpread{
-		serviceLister:    serviceLister,
-		controllerLister: controllerLister,
-		replicaSetLister: replicaSetLister,
+		serviceLister:     serviceLister,
+		controllerLister:  controllerLister,
+		replicaSetLister:  replicaSetLister,
+		statefulSetLister: statefulSetLister,
 	}
 	return selectorSpread.CalculateSpreadPriority
 }
 
 // Returns selectors of services, RCs and RSs matching the given pod.
-func getSelectors(pod *v1.Pod, sl algorithm.ServiceLister, cl algorithm.ControllerLister, rsl algorithm.ReplicaSetLister) []labels.Selector {
+func getSelectors(pod *v1.Pod, sl algorithm.ServiceLister, cl algorithm.ControllerLister, rsl algorithm.ReplicaSetLister, ssl algorithm.StatefulSetLister) []labels.Selector {
 	selectors := make([]labels.Selector, 0, 3)
 	if services, err := sl.GetPodServices(pod); err == nil {
 		for _, service := range services {
@@ -76,11 +79,18 @@ func getSelectors(pod *v1.Pod, sl algorithm.ServiceLister, cl algorithm.Controll
 			}
 		}
 	}
+	if sss, err := ssl.GetPodStatefulSets(pod); err == nil {
+		for _, ss := range sss {
+			if selector, err := metav1.LabelSelectorAsSelector(ss.Spec.Selector); err == nil {
+				selectors = append(selectors, selector)
+			}
+		}
+	}
 	return selectors
 }
 
 func (s *SelectorSpread) getSelectors(pod *v1.Pod) []labels.Selector {
-	return getSelectors(pod, s.serviceLister, s.controllerLister, s.replicaSetLister)
+	return getSelectors(pod, s.serviceLister, s.controllerLister, s.replicaSetLister, s.statefulSetLister)
 }
 
 // CalculateSpreadPriority spreads pods across hosts and zones, considering pods belonging to the same service or replication controller.

plugin/pkg/scheduler/algorithm/priorities/selector_spreading_test.go

@@ -23,6 +23,7 @@ import (
 
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/kubernetes/pkg/api/v1"
+	apps "k8s.io/kubernetes/pkg/apis/apps/v1beta1"
 	extensions "k8s.io/kubernetes/pkg/apis/extensions/v1beta1"
 	schedulerapi "k8s.io/kubernetes/plugin/pkg/scheduler/api"
 	"k8s.io/kubernetes/plugin/pkg/scheduler/schedulercache"
@@ -60,6 +61,7 @@ func TestSelectorSpreadPriority(t *testing.T) {
 		rcs          []*v1.ReplicationController
 		rss          []*extensions.ReplicaSet
 		services     []*v1.Service
+		sss          []*apps.StatefulSet
 		expectedList schedulerapi.HostPriorityList
 		test         string
 	}{
@@ -203,6 +205,19 @@ func TestSelectorSpreadPriority(t *testing.T) {
 			test:         "service with partial pod label matches with service and replica set",
 		},
 		{
+			pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
+			pods: []*v1.Pod{
+				{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
+				{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
+				{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
+			},
+			nodes:        []string{"machine1", "machine2"},
+			services:     []*v1.Service{{Spec: v1.ServiceSpec{Selector: map[string]string{"baz": "blah"}}}},
+			sss:          []*apps.StatefulSet{{Spec: apps.StatefulSetSpec{Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"foo": "bar"}}}}},
+			expectedList: []schedulerapi.HostPriority{{Host: "machine1", Score: 0}, {Host: "machine2", Score: 5}},
+			test:         "service with partial pod label matches with service and replica set",
+		},
+		{
 			pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: map[string]string{"foo": "bar", "bar": "foo"}, OwnerReferences: controllerRef("ReplicationController", "name", "abc123")}},
 			pods: []*v1.Pod{
 				{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
@@ -231,6 +246,19 @@ func TestSelectorSpreadPriority(t *testing.T) {
 			test:         "disjoined service and replica set should be treated equally",
 		},
 		{
+			pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: map[string]string{"foo": "bar", "bar": "foo"}, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
+			pods: []*v1.Pod{
+				{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
+				{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
+				{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
+			},
+			nodes:        []string{"machine1", "machine2"},
+			services:     []*v1.Service{{Spec: v1.ServiceSpec{Selector: map[string]string{"bar": "foo"}}}},
+			sss:          []*apps.StatefulSet{{Spec: apps.StatefulSetSpec{Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"foo": "bar"}}}}},
+			expectedList: []schedulerapi.HostPriority{{Host: "machine1", Score: 0}, {Host: "machine2", Score: 5}},
+			test:         "disjoined service and replica set should be treated equally",
+		},
+		{
 			pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicationController", "name", "abc123")}},
 			pods: []*v1.Pod{
 				{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
@@ -257,6 +285,19 @@ func TestSelectorSpreadPriority(t *testing.T) {
 			test:         "Replica set with partial pod label matches",
 		},
 		{
+			pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
+			pods: []*v1.Pod{
+				{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
+				{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
+				{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
+			},
+			nodes: []string{"machine1", "machine2"},
+			sss:   []*apps.StatefulSet{{Spec: apps.StatefulSetSpec{Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"foo": "bar"}}}}},
+			// We use StatefulSet, instead of ReplicationController. The result should be exactly as above.
+			expectedList: []schedulerapi.HostPriority{{Host: "machine1", Score: 0}, {Host: "machine2", Score: 0}},
+			test:         "StatefulSet with partial pod label matches",
+		},
+		{
 			pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicationController", "name", "abc123")}},
 			pods: []*v1.Pod{
 				{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2, OwnerReferences: controllerRef("ReplicationController", "name", "abc123")}},
@@ -281,14 +322,28 @@ func TestSelectorSpreadPriority(t *testing.T) {
 			expectedList: []schedulerapi.HostPriority{{Host: "machine1", Score: 0}, {Host: "machine2", Score: 5}},
 			test:         "Another replication set with partial pod label matches",
 		},
+		{
+			pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
+			pods: []*v1.Pod{
+				{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
+				{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
+				{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
+			},
+			nodes: []string{"machine1", "machine2"},
+			sss:   []*apps.StatefulSet{{Spec: apps.StatefulSetSpec{Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"baz": "blah"}}}}},
+			// We use StatefulSet, instead of ReplicationController. The result should be exactly as above.
+			expectedList: []schedulerapi.HostPriority{{Host: "machine1", Score: 0}, {Host: "machine2", Score: 5}},
+			test:         "Another stateful set with partial pod label matches",
+		},
 	}
 
 	for _, test := range tests {
 		nodeNameToInfo := schedulercache.CreateNodeNameToInfoMap(test.pods, nil)
 		selectorSpread := SelectorSpread{
-			serviceLister:    schedulertesting.FakeServiceLister(test.services),
-			controllerLister: schedulertesting.FakeControllerLister(test.rcs),
-			replicaSetLister: schedulertesting.FakeReplicaSetLister(test.rss),
+			serviceLister:     schedulertesting.FakeServiceLister(test.services),
+			controllerLister:  schedulertesting.FakeControllerLister(test.rcs),
+			replicaSetLister:  schedulertesting.FakeReplicaSetLister(test.rss),
+			statefulSetLister: schedulertesting.FakeStatefulSetLister(test.sss),
 		}
 		list, err := selectorSpread.CalculateSpreadPriority(test.pod, nodeNameToInfo, makeNodeList(test.nodes))
 		if err != nil {
@@ -346,6 +401,7 @@ func TestZoneSelectorSpreadPriority(t *testing.T) {
 		rcs          []*v1.ReplicationController
 		rss          []*extensions.ReplicaSet
 		services     []*v1.Service
+		sss          []*apps.StatefulSet
 		expectedList schedulerapi.HostPriorityList
 		test         string
 	}{
@@ -493,9 +549,10 @@ func TestZoneSelectorSpreadPriority(t *testing.T) {
 	for _, test := range tests {
 		nodeNameToInfo := schedulercache.CreateNodeNameToInfoMap(test.pods, nil)
 		selectorSpread := SelectorSpread{
-			serviceLister:    schedulertesting.FakeServiceLister(test.services),
-			controllerLister: schedulertesting.FakeControllerLister(test.rcs),
-			replicaSetLister: schedulertesting.FakeReplicaSetLister(test.rss),
+			serviceLister:     schedulertesting.FakeServiceLister(test.services),
+			controllerLister:  schedulertesting.FakeControllerLister(test.rcs),
+			replicaSetLister:  schedulertesting.FakeReplicaSetLister(test.rss),
+			statefulSetLister: schedulertesting.FakeStatefulSetLister(test.sss),
 		}
 		list, err := selectorSpread.CalculateSpreadPriority(test.pod, nodeNameToInfo, makeLabeledNodeList(labeledNodes))
 		if err != nil {

plugin/pkg/scheduler/algorithm/types.go

@@ -19,6 +19,7 @@ package algorithm
 import (
 	"k8s.io/apimachinery/pkg/labels"
 	"k8s.io/kubernetes/pkg/api/v1"
+	apps "k8s.io/kubernetes/pkg/apis/apps/v1beta1"
 	extensions "k8s.io/kubernetes/pkg/apis/extensions/v1beta1"
 	schedulerapi "k8s.io/kubernetes/plugin/pkg/scheduler/api"
 	"k8s.io/kubernetes/plugin/pkg/scheduler/schedulercache"
@@ -127,3 +128,19 @@ type EmptyReplicaSetLister struct{}
 func (f EmptyReplicaSetLister) GetPodReplicaSets(pod *v1.Pod) (rss []*extensions.ReplicaSet, err error) {
 	return nil, nil
 }
+
+// StatefulSetLister interface represents anything that can produce a list of StatefulSet; the list is consumed by a scheduler.
+type StatefulSetLister interface {
+	// Gets the StatefulSet for the given pod.
+	GetPodStatefulSets(*v1.Pod) ([]*apps.StatefulSet, error)
+}
+
+var _ StatefulSetLister = &EmptyStatefulSetLister{}
+
+// EmptyStatefulSetLister implements StatefulSetLister on []apps.StatefulSet returning empty data.
+type EmptyStatefulSetLister struct{}
+
+// GetPodStatefulSets of EmptyStatefulSetLister returns nil.
+func (f EmptyStatefulSetLister) GetPodStatefulSets(pod *v1.Pod) (sss []*apps.StatefulSet, err error) {
+	return nil, nil
+}

plugin/pkg/scheduler/algorithmprovider/defaults/compatibility_test.go

@@ -356,6 +356,7 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
 			informerFactory.Core().V1().PersistentVolumeClaims(),
 			informerFactory.Core().V1().ReplicationControllers(),
 			informerFactory.Extensions().V1beta1().ReplicaSets(),
+			informerFactory.Apps().V1beta1().StatefulSets(),
 			informerFactory.Core().V1().Services(),
 			v1.DefaultHardPodAffinitySymmetricWeight,
 		).CreateFromConfig(policy); err != nil {

plugin/pkg/scheduler/algorithmprovider/defaults/defaults.go

@@ -93,7 +93,7 @@ func init() {
 		"ServiceSpreadingPriority",
 		factory.PriorityConfigFactory{
 			Function: func(args factory.PluginFactoryArgs) algorithm.PriorityFunction {
-				return priorities.NewSelectorSpreadPriority(args.ServiceLister, algorithm.EmptyControllerLister{}, algorithm.EmptyReplicaSetLister{})
+				return priorities.NewSelectorSpreadPriority(args.ServiceLister, algorithm.EmptyControllerLister{}, algorithm.EmptyReplicaSetLister{}, algorithm.EmptyStatefulSetLister{})
 			},
 			Weight: 1,
 		},
@@ -180,7 +180,7 @@ func defaultPriorities() sets.String {
 			"SelectorSpreadPriority",
 			factory.PriorityConfigFactory{
 				Function: func(args factory.PluginFactoryArgs) algorithm.PriorityFunction {
-					return priorities.NewSelectorSpreadPriority(args.ServiceLister, args.ControllerLister, args.ReplicaSetLister)
+					return priorities.NewSelectorSpreadPriority(args.ServiceLister, args.ControllerLister, args.ReplicaSetLister, args.StatefulSetLister)
 				},
 				Weight: 1,
 			},

plugin/pkg/scheduler/core/BUILD

@@ -18,6 +18,7 @@ go_test(
     tags = ["automanaged"],
     deps = [
         "//pkg/api/v1:go_default_library",
+        "//pkg/apis/apps/v1beta1:go_default_library",
         "//pkg/apis/extensions/v1beta1:go_default_library",
         "//plugin/pkg/scheduler/algorithm:go_default_library",
         "//plugin/pkg/scheduler/algorithm/predicates:go_default_library",

plugin/pkg/scheduler/core/generic_scheduler_test.go

@@ -30,6 +30,7 @@ import (
 	"k8s.io/apimachinery/pkg/util/sets"
 	"k8s.io/apimachinery/pkg/util/wait"
 	"k8s.io/kubernetes/pkg/api/v1"
+	apps "k8s.io/kubernetes/pkg/apis/apps/v1beta1"
 	extensions "k8s.io/kubernetes/pkg/apis/extensions/v1beta1"
 	"k8s.io/kubernetes/plugin/pkg/scheduler/algorithm"
 	algorithmpredicates "k8s.io/kubernetes/plugin/pkg/scheduler/algorithm/predicates"
@@ -518,7 +519,8 @@ func TestZeroRequest(t *testing.T) {
 				Function: algorithmpriorities.NewSelectorSpreadPriority(
 					schedulertesting.FakeServiceLister([]*v1.Service{}),
 					schedulertesting.FakeControllerLister([]*v1.ReplicationController{}),
-					schedulertesting.FakeReplicaSetLister([]*extensions.ReplicaSet{})),
+					schedulertesting.FakeReplicaSetLister([]*extensions.ReplicaSet{}),
+					schedulertesting.FakeStatefulSetLister([]*apps.StatefulSet{})),
 				Weight: 1,
 			},
 		}

plugin/pkg/scheduler/factory/BUILD

@@ -18,8 +18,10 @@ go_library(
     deps = [
         "//pkg/api/v1:go_default_library",
         "//pkg/client/clientset_generated/clientset:go_default_library",
+        "//pkg/client/informers/informers_generated/externalversions/apps/v1beta1:go_default_library",
         "//pkg/client/informers/informers_generated/externalversions/core/v1:go_default_library",
         "//pkg/client/informers/informers_generated/externalversions/extensions/v1beta1:go_default_library",
+        "//pkg/client/listers/apps/v1beta1:go_default_library",
         "//pkg/client/listers/core/v1:go_default_library",
         "//pkg/client/listers/extensions/v1beta1:go_default_library",
         "//plugin/pkg/scheduler:go_default_library",

plugin/pkg/scheduler/factory/factory.go

@@ -33,8 +33,10 @@ import (
 	"k8s.io/client-go/tools/cache"
 	"k8s.io/kubernetes/pkg/api/v1"
 	"k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
+	appsinformers "k8s.io/kubernetes/pkg/client/informers/informers_generated/externalversions/apps/v1beta1"
 	coreinformers "k8s.io/kubernetes/pkg/client/informers/informers_generated/externalversions/core/v1"
 	extensionsinformers "k8s.io/kubernetes/pkg/client/informers/informers_generated/externalversions/extensions/v1beta1"
+	appslisters "k8s.io/kubernetes/pkg/client/listers/apps/v1beta1"
 	corelisters "k8s.io/kubernetes/pkg/client/listers/core/v1"
 	extensionslisters "k8s.io/kubernetes/pkg/client/listers/extensions/v1beta1"
 	"k8s.io/kubernetes/plugin/pkg/scheduler"
@@ -74,6 +76,8 @@ type ConfigFactory struct {
 	controllerLister corelisters.ReplicationControllerLister
 	// a means to list all replicasets
 	replicaSetLister extensionslisters.ReplicaSetLister
+	// a means to list all statefulsets
+	statefulSetLister appslisters.StatefulSetLister
 
 	// Close this to stop all reflectors
 	StopEverything chan struct{}
@@ -105,6 +109,7 @@ func NewConfigFactory(
 	pvcInformer coreinformers.PersistentVolumeClaimInformer,
 	replicationControllerInformer coreinformers.ReplicationControllerInformer,
 	replicaSetInformer extensionsinformers.ReplicaSetInformer,
+	statefulSetInformer appsinformers.StatefulSetInformer,
 	serviceInformer coreinformers.ServiceInformer,
 	hardPodAffinitySymmetricWeight int,
 ) scheduler.Configurator {
@@ -120,6 +125,7 @@ func NewConfigFactory(
 		serviceLister:                  serviceInformer.Lister(),
 		controllerLister:               replicationControllerInformer.Lister(),
 		replicaSetLister:               replicaSetInformer.Lister(),
+		statefulSetLister:              statefulSetInformer.Lister(),
 		schedulerCache:                 schedulerCache,
 		StopEverything:                 stopEverything,
 		schedulerName:                  schedulerName,
@@ -426,10 +432,11 @@ func (f *ConfigFactory) GetPredicates(predicateKeys sets.String) (map[string]alg
 
 func (f *ConfigFactory) getPluginArgs() (*PluginFactoryArgs, error) {
 	return &PluginFactoryArgs{
-		PodLister:        f.podLister,
-		ServiceLister:    f.serviceLister,
-		ControllerLister: f.controllerLister,
-		ReplicaSetLister: f.replicaSetLister,
+		PodLister:         f.podLister,
+		ServiceLister:     f.serviceLister,
+		ControllerLister:  f.controllerLister,
+		ReplicaSetLister:  f.replicaSetLister,
+		StatefulSetLister: f.statefulSetLister,
 		// All fit predicates only need to consider schedulable nodes.
 		NodeLister: &nodePredicateLister{f.nodeLister},
 		NodeInfo:   &predicates.CachedNodeInfo{NodeLister: f.nodeLister},

plugin/pkg/scheduler/factory/factory_test.go

@@ -59,6 +59,7 @@ func TestCreate(t *testing.T) {
 		informerFactory.Core().V1().PersistentVolumeClaims(),
 		informerFactory.Core().V1().ReplicationControllers(),
 		informerFactory.Extensions().V1beta1().ReplicaSets(),
+		informerFactory.Apps().V1beta1().StatefulSets(),
 		informerFactory.Core().V1().Services(),
 		v1.DefaultHardPodAffinitySymmetricWeight,
 	)
@@ -88,6 +89,7 @@ func TestCreateFromConfig(t *testing.T) {
 		informerFactory.Core().V1().PersistentVolumeClaims(),
 		informerFactory.Core().V1().ReplicationControllers(),
 		informerFactory.Extensions().V1beta1().ReplicaSets(),
+		informerFactory.Apps().V1beta1().StatefulSets(),
 		informerFactory.Core().V1().Services(),
 		v1.DefaultHardPodAffinitySymmetricWeight,
 	)
@@ -140,6 +142,7 @@ func TestCreateFromEmptyConfig(t *testing.T) {
 		informerFactory.Core().V1().PersistentVolumeClaims(),
 		informerFactory.Core().V1().ReplicationControllers(),
 		informerFactory.Extensions().V1beta1().ReplicaSets(),
+		informerFactory.Apps().V1beta1().StatefulSets(),
 		informerFactory.Core().V1().Services(),
 		v1.DefaultHardPodAffinitySymmetricWeight,
 	)
@@ -194,6 +197,7 @@ func TestDefaultErrorFunc(t *testing.T) {
 		informerFactory.Core().V1().PersistentVolumeClaims(),
 		informerFactory.Core().V1().ReplicationControllers(),
 		informerFactory.Extensions().V1beta1().ReplicaSets(),
+		informerFactory.Apps().V1beta1().StatefulSets(),
 		informerFactory.Core().V1().Services(),
 		v1.DefaultHardPodAffinitySymmetricWeight,
 	)
@@ -302,6 +306,7 @@ func TestResponsibleForPod(t *testing.T) {
 		informerFactory.Core().V1().PersistentVolumeClaims(),
 		informerFactory.Core().V1().ReplicationControllers(),
 		informerFactory.Extensions().V1beta1().ReplicaSets(),
+		informerFactory.Apps().V1beta1().StatefulSets(),
 		informerFactory.Core().V1().Services(),
 		v1.DefaultHardPodAffinitySymmetricWeight,
 	)
@@ -314,6 +319,7 @@ func TestResponsibleForPod(t *testing.T) {
 		informerFactory.Core().V1().PersistentVolumeClaims(),
 		informerFactory.Core().V1().ReplicationControllers(),
 		informerFactory.Extensions().V1beta1().ReplicaSets(),
+		informerFactory.Apps().V1beta1().StatefulSets(),
 		informerFactory.Core().V1().Services(),
 		v1.DefaultHardPodAffinitySymmetricWeight,
 	)
@@ -381,6 +387,7 @@ func TestInvalidHardPodAffinitySymmetricWeight(t *testing.T) {
 		informerFactory.Core().V1().PersistentVolumeClaims(),
 		informerFactory.Core().V1().ReplicationControllers(),
 		informerFactory.Extensions().V1beta1().ReplicaSets(),
+		informerFactory.Apps().V1beta1().StatefulSets(),
 		informerFactory.Core().V1().Services(),
 		-1,
 	)
@@ -424,6 +431,7 @@ func TestInvalidFactoryArgs(t *testing.T) {
 			informerFactory.Core().V1().PersistentVolumeClaims(),
 			informerFactory.Core().V1().ReplicationControllers(),
 			informerFactory.Extensions().V1beta1().ReplicaSets(),
+			informerFactory.Apps().V1beta1().StatefulSets(),
 			informerFactory.Core().V1().Services(),
 			test.hardPodAffinitySymmetricWeight,
 		)

plugin/pkg/scheduler/factory/plugins.go

@@ -38,6 +38,7 @@ type PluginFactoryArgs struct {
 	ServiceLister                  algorithm.ServiceLister
 	ControllerLister               algorithm.ControllerLister
 	ReplicaSetLister               algorithm.ReplicaSetLister
+	StatefulSetLister              algorithm.StatefulSetLister
 	NodeLister                     algorithm.NodeLister
 	NodeInfo                       predicates.NodeInfo
 	PVInfo                         predicates.PersistentVolumeInfo

plugin/pkg/scheduler/testing/BUILD

@@ -17,6 +17,7 @@ go_library(
     tags = ["automanaged"],
     deps = [
         "//pkg/api/v1:go_default_library",
+        "//pkg/apis/apps/v1beta1:go_default_library",
         "//pkg/apis/extensions/v1beta1:go_default_library",
         "//plugin/pkg/scheduler/algorithm:go_default_library",
         "//plugin/pkg/scheduler/schedulercache:go_default_library",

plugin/pkg/scheduler/testing/fake_lister.go

@@ -22,6 +22,7 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/labels"
 	"k8s.io/kubernetes/pkg/api/v1"
+	apps "k8s.io/kubernetes/pkg/apis/apps/v1beta1"
 	extensions "k8s.io/kubernetes/pkg/apis/extensions/v1beta1"
 	. "k8s.io/kubernetes/plugin/pkg/scheduler/algorithm"
 )
@@ -138,3 +139,30 @@ func (f FakeReplicaSetLister) GetPodReplicaSets(pod *v1.Pod) (rss []*extensions.
 
 	return
 }
+
+var _ StatefulSetLister = &FakeStatefulSetLister{}
+
+// FakeStatefulSetLister implements ControllerLister on []apps.StatefulSet for testing purposes.
+type FakeStatefulSetLister []*apps.StatefulSet
+
+// GetPodStatefulSets gets the StatefulSets that have the selector that match the labels on the given pod.
+func (f FakeStatefulSetLister) GetPodStatefulSets(pod *v1.Pod) (sss []*apps.StatefulSet, err error) {
+	var selector labels.Selector
+
+	for _, ss := range f {
+		if ss.Namespace != pod.Namespace {
+			continue
+		}
+		selector, err = metav1.LabelSelectorAsSelector(ss.Spec.Selector)
+		if err != nil {
+			return
+		}
+		if selector.Matches(labels.Set(pod.Labels)) {
+			sss = append(sss, ss)
+		}
+	}
+	if len(sss) == 0 {
+		err = fmt.Errorf("Could not find StatefulSet for pod %s in namespace %s with labels: %v", pod.Name, pod.Namespace, pod.Labels)
+	}
+	return
+}

test/integration/scheduler/extender_test.go

@@ -326,6 +326,7 @@ func TestSchedulerExtender(t *testing.T) {
 		informerFactory.Core().V1().PersistentVolumeClaims(),
 		informerFactory.Core().V1().ReplicationControllers(),
 		informerFactory.Extensions().V1beta1().ReplicaSets(),
+		informerFactory.Apps().V1beta1().StatefulSets(),
 		informerFactory.Core().V1().Services(),
 		v1.DefaultHardPodAffinitySymmetricWeight,
 	)

test/integration/scheduler/scheduler_test.go

@@ -71,6 +71,7 @@ func TestUnschedulableNodes(t *testing.T) {
 		informerFactory.Core().V1().PersistentVolumeClaims(),
 		informerFactory.Core().V1().ReplicationControllers(),
 		informerFactory.Extensions().V1beta1().ReplicaSets(),
+		informerFactory.Apps().V1beta1().StatefulSets(),
 		informerFactory.Core().V1().Services(),
 		v1.DefaultHardPodAffinitySymmetricWeight,
 	)
@@ -352,6 +353,7 @@ func TestMultiScheduler(t *testing.T) {
 		informerFactory.Core().V1().PersistentVolumeClaims(),
 		informerFactory.Core().V1().ReplicationControllers(),
 		informerFactory.Extensions().V1beta1().ReplicaSets(),
+		informerFactory.Apps().V1beta1().StatefulSets(),
 		informerFactory.Core().V1().Services(),
 		v1.DefaultHardPodAffinitySymmetricWeight,
 	)
@@ -435,6 +437,7 @@ func TestMultiScheduler(t *testing.T) {
 		informerFactory.Core().V1().PersistentVolumeClaims(),
 		informerFactory.Core().V1().ReplicationControllers(),
 		informerFactory.Extensions().V1beta1().ReplicaSets(),
+		informerFactory.Apps().V1beta1().StatefulSets(),
 		informerFactory.Core().V1().Services(),
 		v1.DefaultHardPodAffinitySymmetricWeight,
 	)
@@ -542,6 +545,7 @@ func TestAllocatable(t *testing.T) {
 		informerFactory.Core().V1().PersistentVolumeClaims(),
 		informerFactory.Core().V1().ReplicationControllers(),
 		informerFactory.Extensions().V1beta1().ReplicaSets(),
+		informerFactory.Apps().V1beta1().StatefulSets(),
 		informerFactory.Core().V1().Services(),
 		v1.DefaultHardPodAffinitySymmetricWeight,
 	)

test/integration/scheduler_perf/util.go

@@ -69,6 +69,7 @@ func mustSetupScheduler() (schedulerConfigurator scheduler.Configurator, destroy
 		informerFactory.Core().V1().PersistentVolumeClaims(),
 		informerFactory.Core().V1().ReplicationControllers(),
 		informerFactory.Extensions().V1beta1().ReplicaSets(),
+		informerFactory.Apps().V1beta1().StatefulSets(),
 		informerFactory.Core().V1().Services(),
 		v1.DefaultHardPodAffinitySymmetricWeight,
 	)