Add featuregates for volcano capabilities

pkg/controllers/job/job_controller.go

@@ -24,6 +24,7 @@ import (
 
 	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/util/wait"
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/client-go/informers"
 	coreinformers "k8s.io/client-go/informers/core/v1"
 	kubeschedulinginformers "k8s.io/client-go/informers/scheduling/v1"
@@ -48,10 +49,12 @@ import (
 	batchlister "volcano.sh/apis/pkg/client/listers/batch/v1alpha1"
 	buslister "volcano.sh/apis/pkg/client/listers/bus/v1alpha1"
 	schedulinglisters "volcano.sh/apis/pkg/client/listers/scheduling/v1beta1"
+
 	"volcano.sh/volcano/pkg/controllers/apis"
 	jobcache "volcano.sh/volcano/pkg/controllers/cache"
 	"volcano.sh/volcano/pkg/controllers/framework"
 	"volcano.sh/volcano/pkg/controllers/job/state"
+	"volcano.sh/volcano/pkg/features"
 )
 
 func init() {
@@ -151,39 +154,43 @@ func (cc *jobcontroller) Initialize(opt *framework.ControllerOption) error {
 
 	factory := informerfactory.NewSharedInformerFactory(cc.vcClient, 0)
 	cc.vcInformerFactory = factory
-	cc.jobInformer = factory.Batch().V1alpha1().Jobs()
-	cc.jobInformer.Informer().AddEventHandler(cache.ResourceEventHandlerFuncs{
-		AddFunc:    cc.addJob,
-		UpdateFunc: cc.updateJob,
-		DeleteFunc: cc.deleteJob,
-	})
-	cc.jobLister = cc.jobInformer.Lister()
-	cc.jobSynced = cc.jobInformer.Informer().HasSynced
-
-	cc.cmdInformer = factory.Bus().V1alpha1().Commands()
-	cc.cmdInformer.Informer().AddEventHandler(
-		cache.FilteringResourceEventHandler{
-			FilterFunc: func(obj interface{}) bool {
-				switch v := obj.(type) {
-				case *busv1alpha1.Command:
-					if v.TargetObject != nil &&
-						v.TargetObject.APIVersion == batchv1alpha1.SchemeGroupVersion.String() &&
-						v.TargetObject.Kind == "Job" {
-						return true
-					}
+	if utilfeature.DefaultFeatureGate.Enabled(features.WorkLoadSupport) {
+		cc.jobInformer = factory.Batch().V1alpha1().Jobs()
+		cc.jobInformer.Informer().AddEventHandler(cache.ResourceEventHandlerFuncs{
+			AddFunc:    cc.addJob,
+			UpdateFunc: cc.updateJob,
+			DeleteFunc: cc.deleteJob,
+		})
+		cc.jobLister = cc.jobInformer.Lister()
+		cc.jobSynced = cc.jobInformer.Informer().HasSynced
+	}
 
-					return false
-				default:
-					return false
-				}
-			},
-			Handler: cache.ResourceEventHandlerFuncs{
-				AddFunc: cc.addCommand,
+	if utilfeature.DefaultFeatureGate.Enabled(features.QueueCommandSync) {
+		cc.cmdInformer = factory.Bus().V1alpha1().Commands()
+		cc.cmdInformer.Informer().AddEventHandler(
+			cache.FilteringResourceEventHandler{
+				FilterFunc: func(obj interface{}) bool {
+					switch v := obj.(type) {
+					case *busv1alpha1.Command:
+						if v.TargetObject != nil &&
+							v.TargetObject.APIVersion == batchv1alpha1.SchemeGroupVersion.String() &&
+							v.TargetObject.Kind == "Job" {
+							return true
+						}
+
+						return false
+					default:
+						return false
+					}
+				},
+				Handler: cache.ResourceEventHandlerFuncs{
+					AddFunc: cc.addCommand,
+				},
 			},
-		},
-	)
-	cc.cmdLister = cc.cmdInformer.Lister()
-	cc.cmdSynced = cc.cmdInformer.Informer().HasSynced
+		)
+		cc.cmdLister = cc.cmdInformer.Lister()
+		cc.cmdSynced = cc.cmdInformer.Informer().HasSynced
+	}
 
 	cc.podInformer = sharedInformers.Core().V1().Pods()
 	cc.podInformer.Informer().AddEventHandler(cache.ResourceEventHandlerFuncs{
@@ -210,9 +217,11 @@ func (cc *jobcontroller) Initialize(opt *framework.ControllerOption) error {
 	cc.pgLister = cc.pgInformer.Lister()
 	cc.pgSynced = cc.pgInformer.Informer().HasSynced
 
-	cc.pcInformer = sharedInformers.Scheduling().V1().PriorityClasses()
-	cc.pcLister = cc.pcInformer.Lister()
-	cc.pcSynced = cc.pcInformer.Informer().HasSynced
+	if utilfeature.DefaultFeatureGate.Enabled(features.PriorityClass) {
+		cc.pcInformer = sharedInformers.Scheduling().V1().PriorityClasses()
+		cc.pcLister = cc.pcInformer.Lister()
+		cc.pcSynced = cc.pcInformer.Informer().HasSynced
+	}
 
 	cc.queueInformer = factory.Scheduling().V1beta1().Queues()
 	cc.queueLister = cc.queueInformer.Lister()

pkg/controllers/podgroup/pg_controller.go

@@ -18,6 +18,7 @@ package podgroup
 
 import (
 	"k8s.io/apimachinery/pkg/util/wait"
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/client-go/informers"
 	appinformers "k8s.io/client-go/informers/apps/v1"
 	coreinformers "k8s.io/client-go/informers/core/v1"
@@ -34,6 +35,7 @@ import (
 	schedulinginformer "volcano.sh/apis/pkg/client/informers/externalversions/scheduling/v1beta1"
 	schedulinglister "volcano.sh/apis/pkg/client/listers/scheduling/v1beta1"
 	"volcano.sh/volcano/pkg/controllers/framework"
+	"volcano.sh/volcano/pkg/features"
 	commonutil "volcano.sh/volcano/pkg/util"
 )
 
@@ -103,13 +105,14 @@ func (pg *pgcontroller) Initialize(opt *framework.ControllerOption) error {
 	pg.pgLister = pg.pgInformer.Lister()
 	pg.pgSynced = pg.pgInformer.Informer().HasSynced
 
-	pg.rsInformer = pg.informerFactory.Apps().V1().ReplicaSets()
-	pg.rsSynced = pg.rsInformer.Informer().HasSynced
-	pg.rsInformer.Informer().AddEventHandler(cache.ResourceEventHandlerFuncs{
-		AddFunc:    pg.addReplicaSet,
-		UpdateFunc: pg.updateReplicaSet,
-	})
-
+	if utilfeature.DefaultFeatureGate.Enabled(features.WorkLoadSupport) {
+		pg.rsInformer = pg.informerFactory.Apps().V1().ReplicaSets()
+		pg.rsSynced = pg.rsInformer.Informer().HasSynced
+		pg.rsInformer.Informer().AddEventHandler(cache.ResourceEventHandlerFuncs{
+			AddFunc:    pg.addReplicaSet,
+			UpdateFunc: pg.updateReplicaSet,
+		})
+	}
 	return nil
 }
 

pkg/controllers/queue/queue_controller.go

@@ -27,6 +27,7 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
 	"k8s.io/apimachinery/pkg/util/wait"
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/client-go/kubernetes"
 	corev1 "k8s.io/client-go/kubernetes/typed/core/v1"
 	"k8s.io/client-go/tools/cache"
@@ -46,6 +47,7 @@ import (
 	"volcano.sh/volcano/pkg/controllers/apis"
 	"volcano.sh/volcano/pkg/controllers/framework"
 	queuestate "volcano.sh/volcano/pkg/controllers/queue/state"
+	"volcano.sh/volcano/pkg/features"
 )
 
 func init() {
@@ -137,22 +139,24 @@ func (c *queuecontroller) Initialize(opt *framework.ControllerOption) error {
 		DeleteFunc: c.deletePodGroup,
 	})
 
-	c.cmdInformer = factory.Bus().V1alpha1().Commands()
-	c.cmdInformer.Informer().AddEventHandler(cache.FilteringResourceEventHandler{
-		FilterFunc: func(obj interface{}) bool {
-			switch v := obj.(type) {
-			case *busv1alpha1.Command:
-				return IsQueueReference(v.TargetObject)
-			default:
-				return false
-			}
-		},
-		Handler: cache.ResourceEventHandlerFuncs{
-			AddFunc: c.addCommand,
-		},
-	})
-	c.cmdLister = c.cmdInformer.Lister()
-	c.cmdSynced = c.cmdInformer.Informer().HasSynced
+	if utilfeature.DefaultFeatureGate.Enabled(features.QueueCommandSync) {
+		c.cmdInformer = factory.Bus().V1alpha1().Commands()
+		c.cmdInformer.Informer().AddEventHandler(cache.FilteringResourceEventHandler{
+			FilterFunc: func(obj interface{}) bool {
+				switch v := obj.(type) {
+				case *busv1alpha1.Command:
+					return IsQueueReference(v.TargetObject)
+				default:
+					return false
+				}
+			},
+			Handler: cache.ResourceEventHandlerFuncs{
+				AddFunc: c.addCommand,
+			},
+		})
+		c.cmdLister = c.cmdInformer.Lister()
+		c.cmdSynced = c.cmdInformer.Informer().HasSynced
+	}
 
 	queuestate.SyncQueue = c.syncQueue
 	queuestate.OpenQueue = c.openQueue

pkg/features/volcano_features.go

@@ -0,0 +1,57 @@
+/*
+ Copyright 2023 The Volcano 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 features
+
+import (
+	"k8s.io/apimachinery/pkg/util/runtime"
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
+	"k8s.io/component-base/featuregate"
+)
+
+const (
+	// WorkLoadSupport can cache and operate **K8s native resource**, Deployment/Replicas/ReplicationController/StatefulSet resources currently.
+	WorkLoadSupport featuregate.Feature = "WorkLoadSupport"
+
+	// VolcanoJobSupport can identify and schedule volcano job.
+	VolcanoJobSupport featuregate.Feature = "VolcanoJobSupport"
+
+	// QueueCommandSync supports queue command sync.
+	QueueCommandSync featuregate.Feature = "QueueCommandSync"
+
+	// PriorityClass to provide the capacity of preemption at pod group level.
+	PriorityClass featuregate.Feature = "PriorityClass"
+
+	// CSIStorage tracking of available storage capacity that CSI drivers provide
+	CSIStorage featuregate.Feature = "CSIStorage"
+
+	// ResourceTopology supports resources like cpu/memory topology aware.
+	ResourceTopology featuregate.Feature = "ResourceTopology"
+)
+
+func init() {
+	runtime.Must(utilfeature.DefaultMutableFeatureGate.Add(defaultVolcanoFeatureGates))
+}
+
+var defaultVolcanoFeatureGates = map[featuregate.Feature]featuregate.FeatureSpec{
+	WorkLoadSupport:   {Default: true, PreRelease: featuregate.Alpha},
+	VolcanoJobSupport: {Default: true, PreRelease: featuregate.Alpha},
+	QueueCommandSync:  {Default: true, PreRelease: featuregate.Alpha},
+	PriorityClass:     {Default: true, PreRelease: featuregate.Alpha},
+	// CSIStorage is explicitly set to false by default.
+	CSIStorage:       {Default: false, PreRelease: featuregate.Alpha},
+	ResourceTopology: {Default: true, PreRelease: featuregate.Alpha},
+}

pkg/scheduler/cache/cache.go

@@ -33,6 +33,7 @@ import (
 	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
 	"k8s.io/apimachinery/pkg/util/sets"
 	"k8s.io/apimachinery/pkg/util/wait"
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/client-go/informers"
 	infov1 "k8s.io/client-go/informers/core/v1"
 	schedv1 "k8s.io/client-go/informers/scheduling/v1"
@@ -60,6 +61,7 @@ import (
 	vcinformerv1 "volcano.sh/apis/pkg/client/informers/externalversions/scheduling/v1beta1"
 
 	"volcano.sh/volcano/cmd/scheduler/app/options"
+	"volcano.sh/volcano/pkg/features"
 	schedulingapi "volcano.sh/volcano/pkg/scheduler/api"
 	volumescheduling "volcano.sh/volcano/pkg/scheduler/capabilities/volumebinding"
 	"volcano.sh/volcano/pkg/scheduler/metrics"
@@ -501,9 +503,11 @@ func newSchedulerCache(config *rest.Config, schedulerNames []string, defaultQueu
 	// `SelectorSpread` and `PodTopologySpread` plugins uses the following four so far.
 	informerFactory.Core().V1().Namespaces().Informer()
 	informerFactory.Core().V1().Services().Informer()
-	informerFactory.Core().V1().ReplicationControllers().Informer()
-	informerFactory.Apps().V1().ReplicaSets().Informer()
-	informerFactory.Apps().V1().StatefulSets().Informer()
+	if utilfeature.DefaultFeatureGate.Enabled(features.WorkLoadSupport) {
+		informerFactory.Core().V1().ReplicationControllers().Informer()
+		informerFactory.Apps().V1().ReplicaSets().Informer()
+		informerFactory.Apps().V1().StatefulSets().Informer()
+	}
 
 	// create informer for node information
 	sc.nodeInformer = informerFactory.Core().V1().Nodes()
@@ -561,11 +565,11 @@ func newSchedulerCache(config *rest.Config, schedulerNames []string, defaultQueu
 			DeleteFunc: sc.DeleteCSINode,
 		},
 	)
-	sc.csiDriverInformer = informerFactory.Storage().V1().CSIDrivers()
-	sc.csiStorageCapacityInformer = informerFactory.Storage().V1beta1().CSIStorageCapacities()
 
 	var capacityCheck *volumescheduling.CapacityCheck
-	if options.ServerOpts.EnableCSIStorage {
+	if options.ServerOpts.EnableCSIStorage && utilfeature.DefaultFeatureGate.Enabled(features.CSIStorage) {
+		sc.csiDriverInformer = informerFactory.Storage().V1().CSIDrivers()
+		sc.csiStorageCapacityInformer = informerFactory.Storage().V1beta1().CSIStorageCapacities()
 		capacityCheck = &volumescheduling.CapacityCheck{
 			CSIDriverInformer:          sc.csiDriverInformer,
 			CSIStorageCapacityInformer: sc.csiStorageCapacityInformer,
@@ -621,7 +625,7 @@ func newSchedulerCache(config *rest.Config, schedulerNames []string, defaultQueu
 			},
 		})
 
-	if options.ServerOpts.EnablePriorityClass {
+	if options.ServerOpts.EnablePriorityClass && utilfeature.DefaultFeatureGate.Enabled(features.PriorityClass) {
 		sc.pcInformer = informerFactory.Scheduling().V1().PriorityClasses()
 		sc.pcInformer.Informer().AddEventHandler(cache.ResourceEventHandlerFuncs{
 			AddFunc:    sc.AddPriorityClass,
@@ -677,12 +681,14 @@ func newSchedulerCache(config *rest.Config, schedulerNames []string, defaultQueu
 		DeleteFunc: sc.DeleteQueueV1beta1,
 	})
 
-	sc.cpuInformer = vcinformers.Nodeinfo().V1alpha1().Numatopologies()
-	sc.cpuInformer.Informer().AddEventHandler(cache.ResourceEventHandlerFuncs{
-		AddFunc:    sc.AddNumaInfoV1alpha1,
-		UpdateFunc: sc.UpdateNumaInfoV1alpha1,
-		DeleteFunc: sc.DeleteNumaInfoV1alpha1,
-	})
+	if utilfeature.DefaultFeatureGate.Enabled(features.ResourceTopology) {
+		sc.cpuInformer = vcinformers.Nodeinfo().V1alpha1().Numatopologies()
+		sc.cpuInformer.Informer().AddEventHandler(cache.ResourceEventHandlerFuncs{
+			AddFunc:    sc.AddNumaInfoV1alpha1,
+			UpdateFunc: sc.UpdateNumaInfoV1alpha1,
+			DeleteFunc: sc.DeleteNumaInfoV1alpha1,
+		})
+	}
 	return sc
 }
 

pkg/scheduler/capabilities/volumebinding/volume_binding.go

@@ -26,6 +26,7 @@ import (
 	v1 "k8s.io/api/core/v1"
 	apierrors "k8s.io/apimachinery/pkg/api/errors"
 	"k8s.io/apimachinery/pkg/runtime"
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	corelisters "k8s.io/client-go/listers/core/v1"
 	"k8s.io/component-helpers/storage/ephemeral"
 	"k8s.io/klog/v2"
@@ -37,6 +38,7 @@ import (
 	"k8s.io/kubernetes/pkg/scheduler/framework/plugins/names"
 
 	"volcano.sh/volcano/cmd/scheduler/app/options"
+	"volcano.sh/volcano/pkg/features"
 )
 
 const (
@@ -377,7 +379,7 @@ func New(plArgs runtime.Object, fh framework.Handle, fts feature.Features) (fram
 	storageClassInformer := fh.SharedInformerFactory().Storage().V1().StorageClasses()
 	csiNodeInformer := fh.SharedInformerFactory().Storage().V1().CSINodes()
 	var capacityCheck *CapacityCheck
-	if options.ServerOpts.EnableCSIStorage {
+	if options.ServerOpts.EnableCSIStorage && utilfeature.DefaultFeatureGate.Enabled(features.CSIStorage) {
 		capacityCheck = &CapacityCheck{
 			CSIDriverInformer:          fh.SharedInformerFactory().Storage().V1().CSIDrivers(),
 			CSIStorageCapacityInformer: fh.SharedInformerFactory().Storage().V1beta1().CSIStorageCapacities(),

pkg/scheduler/capabilities/volumebinding/volume_binding_test.go

@@ -21,21 +21,24 @@ import (
 	"reflect"
 	"testing"
 
-	"volcano.sh/volcano/cmd/scheduler/app/options"
-
 	"github.com/google/go-cmp/cmp"
 	"github.com/google/go-cmp/cmp/cmpopts"
 	v1 "k8s.io/api/core/v1"
 	storagev1 "k8s.io/api/storage/v1"
 	"k8s.io/apimachinery/pkg/api/resource"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/util/wait"
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/client-go/informers"
 	"k8s.io/client-go/kubernetes/fake"
+	featuregatetesting "k8s.io/component-base/featuregate/testing"
 	"k8s.io/kubernetes/pkg/scheduler/apis/config"
 	"k8s.io/kubernetes/pkg/scheduler/framework"
 	"k8s.io/kubernetes/pkg/scheduler/framework/plugins/feature"
 	"k8s.io/kubernetes/pkg/scheduler/framework/runtime"
+
+	"volcano.sh/volcano/cmd/scheduler/app/options"
+	"volcano.sh/volcano/pkg/features"
 )
 
 var (
@@ -596,6 +599,7 @@ func TestVolumeBinding(t *testing.T) {
 	options.ServerOpts = &options.ServerOption{
 		EnableCSIStorage: true,
 	}
+	defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.CSIStorage, true)()
 	for _, item := range table {
 		t.Run(item.name, func(t *testing.T) {
 			ctx, cancel := context.WithCancel(context.Background())