Merge pull request #99594 from cofyc/kep1845-api

Prioritizing nodes based on volume capacity: API changes

pkg/scheduler/apis/config/scheme/scheme_test.go

@@ -733,6 +733,16 @@ func TestCodecsEncodePluginConfig(t *testing.T) {
 								Args: runtime.RawExtension{
 									Object: &v1beta1.VolumeBindingArgs{
 										BindTimeoutSeconds: pointer.Int64Ptr(300),
+										Shape: []v1beta1.UtilizationShapePoint{
+											{
+												Utilization: 0,
+												Score:       0,
+											},
+											{
+												Utilization: 100,
+												Score:       10,
+											},
+										},
 									},
 								},
 							},
@@ -804,6 +814,11 @@ profiles:
       apiVersion: kubescheduler.config.k8s.io/v1beta1
       bindTimeoutSeconds: 300
       kind: VolumeBindingArgs
+      shape:
+      - score: 0
+        utilization: 0
+      - score: 10
+        utilization: 100
     name: VolumeBinding
   - args:
       apiVersion: kubescheduler.config.k8s.io/v1beta1
@@ -855,6 +870,16 @@ profiles:
 								Name: "VolumeBinding",
 								Args: &config.VolumeBindingArgs{
 									BindTimeoutSeconds: 300,
+									Shape: []config.UtilizationShapePoint{
+										{
+											Utilization: 0,
+											Score:       0,
+										},
+										{
+											Utilization: 100,
+											Score:       10,
+										},
+									},
 								},
 							},
 							{
@@ -913,6 +938,11 @@ profiles:
       apiVersion: kubescheduler.config.k8s.io/v1beta1
       bindTimeoutSeconds: 300
       kind: VolumeBindingArgs
+      shape:
+      - score: 0
+        utilization: 0
+      - score: 10
+        utilization: 100
     name: VolumeBinding
   - args:
       apiVersion: kubescheduler.config.k8s.io/v1beta1
@@ -945,6 +975,16 @@ profiles:
 								Args: runtime.RawExtension{
 									Object: &v1beta2.VolumeBindingArgs{
 										BindTimeoutSeconds: pointer.Int64Ptr(300),
+										Shape: []v1beta2.UtilizationShapePoint{
+											{
+												Utilization: 0,
+												Score:       0,
+											},
+											{
+												Utilization: 100,
+												Score:       10,
+											},
+										},
 									},
 								},
 							},
@@ -1009,6 +1049,11 @@ profiles:
       apiVersion: kubescheduler.config.k8s.io/v1beta2
       bindTimeoutSeconds: 300
       kind: VolumeBindingArgs
+      shape:
+      - score: 0
+        utilization: 0
+      - score: 10
+        utilization: 100
     name: VolumeBinding
   - args:
       apiVersion: kubescheduler.config.k8s.io/v1beta2

pkg/scheduler/apis/config/types_pluginargs.go

@@ -214,6 +214,21 @@ type VolumeBindingArgs struct {
 	// Value must be non-negative integer. The value zero indicates no waiting.
 	// If this value is nil, the default value will be used.
 	BindTimeoutSeconds int64
+
+	// Shape specifies the points defining the score function shape, which is
+	// used to score nodes based on the utilization of statically provisioned
+	// PVs. The utilization is calculated by dividing the total requested
+	// storage of the pod by the total capacity of feasible PVs on each node.
+	// Each point contains utilization (ranges from 0 to 100) and its
+	// associated score (ranges from 0 to 10). You can turn the priority by
+	// specifying different scores for different utilization numbers.
+	// The default shape points are:
+	// 1) 0 for 0 utilization
+	// 2) 10 for 100 utilization
+	// All points must be sorted in increasing order by utilization.
+	// +featureGate=VolumeCapacityPriority
+	// +optional
+	Shape []UtilizationShapePoint
 }
 
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object

pkg/scheduler/apis/config/v1beta1/defaults.go

@@ -280,6 +280,18 @@ func SetDefaults_VolumeBindingArgs(obj *v1beta1.VolumeBindingArgs) {
 	if obj.BindTimeoutSeconds == nil {
 		obj.BindTimeoutSeconds = pointer.Int64Ptr(600)
 	}
+	if len(obj.Shape) == 0 && feature.DefaultFeatureGate.Enabled(features.VolumeCapacityPriority) {
+		obj.Shape = []v1beta1.UtilizationShapePoint{
+			{
+				Utilization: 0,
+				Score:       0,
+			},
+			{
+				Utilization: 100,
+				Score:       int32(config.MaxCustomPriorityScore),
+			},
+		}
+	}
 }
 
 func SetDefaults_PodTopologySpreadArgs(obj *v1beta1.PodTopologySpreadArgs) {

pkg/scheduler/apis/config/v1beta1/defaults_test.go

@@ -701,6 +701,30 @@ func TestPluginArgsDefaults(t *testing.T) {
 				},
 			},
 		},
+		{
+			name: "VolumeBindingArgs empty, VolumeCapacityPriority disabled",
+			features: map[featuregate.Feature]bool{
+				features.VolumeCapacityPriority: false,
+			},
+			in: &v1beta1.VolumeBindingArgs{},
+			want: &v1beta1.VolumeBindingArgs{
+				BindTimeoutSeconds: pointer.Int64Ptr(600),
+			},
+		},
+		{
+			name: "VolumeBindingArgs empty, VolumeCapacityPriority enabled",
+			features: map[featuregate.Feature]bool{
+				features.VolumeCapacityPriority: true,
+			},
+			in: &v1beta1.VolumeBindingArgs{},
+			want: &v1beta1.VolumeBindingArgs{
+				BindTimeoutSeconds: pointer.Int64Ptr(600),
+				Shape: []v1beta1.UtilizationShapePoint{
+					{Utilization: 0, Score: 0},
+					{Utilization: 100, Score: 10},
+				},
+			},
+		},
 	}
 	for _, tc := range tests {
 		scheme := runtime.NewScheme()

pkg/scheduler/apis/config/v1beta1/zz_generated.conversion.go

@@ -916,6 +916,7 @@ func autoConvert_v1beta1_VolumeBindingArgs_To_config_VolumeBindingArgs(in *v1bet
 	if err := v1.Convert_Pointer_int64_To_int64(&in.BindTimeoutSeconds, &out.BindTimeoutSeconds, s); err != nil {
 		return err
 	}
+	out.Shape = *(*[]config.UtilizationShapePoint)(unsafe.Pointer(&in.Shape))
 	return nil
 }
 
@@ -928,6 +929,7 @@ func autoConvert_config_VolumeBindingArgs_To_v1beta1_VolumeBindingArgs(in *confi
 	if err := v1.Convert_int64_To_Pointer_int64(&in.BindTimeoutSeconds, &out.BindTimeoutSeconds, s); err != nil {
 		return err
 	}
+	out.Shape = *(*[]v1beta1.UtilizationShapePoint)(unsafe.Pointer(&in.Shape))
 	return nil
 }
 

pkg/scheduler/apis/config/v1beta2/defaults.go

@@ -245,6 +245,18 @@ func SetDefaults_VolumeBindingArgs(obj *v1beta2.VolumeBindingArgs) {
 	if obj.BindTimeoutSeconds == nil {
 		obj.BindTimeoutSeconds = pointer.Int64Ptr(600)
 	}
+	if len(obj.Shape) == 0 && feature.DefaultFeatureGate.Enabled(features.VolumeCapacityPriority) {
+		obj.Shape = []v1beta2.UtilizationShapePoint{
+			{
+				Utilization: 0,
+				Score:       0,
+			},
+			{
+				Utilization: 100,
+				Score:       int32(config.MaxCustomPriorityScore),
+			},
+		}
+	}
 }
 
 func SetDefaults_PodTopologySpreadArgs(obj *v1beta2.PodTopologySpreadArgs) {

pkg/scheduler/apis/config/v1beta2/defaults_test.go

@@ -675,6 +675,30 @@ func TestPluginArgsDefaults(t *testing.T) {
 				},
 			},
 		},
+		{
+			name: "VolumeBindingArgs empty, VolumeCapacityPriority disabled",
+			features: map[featuregate.Feature]bool{
+				features.VolumeCapacityPriority: false,
+			},
+			in: &v1beta2.VolumeBindingArgs{},
+			want: &v1beta2.VolumeBindingArgs{
+				BindTimeoutSeconds: pointer.Int64Ptr(600),
+			},
+		},
+		{
+			name: "VolumeBindingArgs empty, VolumeCapacityPriority enabled",
+			features: map[featuregate.Feature]bool{
+				features.VolumeCapacityPriority: true,
+			},
+			in: &v1beta2.VolumeBindingArgs{},
+			want: &v1beta2.VolumeBindingArgs{
+				BindTimeoutSeconds: pointer.Int64Ptr(600),
+				Shape: []v1beta2.UtilizationShapePoint{
+					{Utilization: 0, Score: 0},
+					{Utilization: 100, Score: 10},
+				},
+			},
+		},
 	}
 	for _, tc := range tests {
 		scheme := runtime.NewScheme()

pkg/scheduler/apis/config/v1beta2/zz_generated.conversion.go

@@ -815,6 +815,7 @@ func autoConvert_v1beta2_VolumeBindingArgs_To_config_VolumeBindingArgs(in *v1bet
 	if err := v1.Convert_Pointer_int64_To_int64(&in.BindTimeoutSeconds, &out.BindTimeoutSeconds, s); err != nil {
 		return err
 	}
+	out.Shape = *(*[]config.UtilizationShapePoint)(unsafe.Pointer(&in.Shape))
 	return nil
 }
 
@@ -827,6 +828,7 @@ func autoConvert_config_VolumeBindingArgs_To_v1beta2_VolumeBindingArgs(in *confi
 	if err := v1.Convert_int64_To_Pointer_int64(&in.BindTimeoutSeconds, &out.BindTimeoutSeconds, s); err != nil {
 		return err
 	}
+	out.Shape = *(*[]v1beta2.UtilizationShapePoint)(unsafe.Pointer(&in.Shape))
 	return nil
 }
 

pkg/scheduler/apis/config/validation/validation_pluginargs.go

@@ -25,7 +25,9 @@ import (
 	"k8s.io/apimachinery/pkg/util/errors"
 	"k8s.io/apimachinery/pkg/util/sets"
 	"k8s.io/apimachinery/pkg/util/validation/field"
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/component-helpers/scheduling/corev1/nodeaffinity"
+	"k8s.io/kubernetes/pkg/features"
 	"k8s.io/kubernetes/pkg/scheduler/apis/config"
 )
 
@@ -294,13 +296,21 @@ func ValidateNodeAffinityArgs(path *field.Path, args *config.NodeAffinityArgs) e
 
 // ValidateVolumeBindingArgs validates that VolumeBindingArgs are set correctly.
 func ValidateVolumeBindingArgs(path *field.Path, args *config.VolumeBindingArgs) error {
-	var err error
+	var allErrs field.ErrorList
 
 	if args.BindTimeoutSeconds < 0 {
-		err = field.Invalid(path.Child("bindTimeoutSeconds"), args.BindTimeoutSeconds, "invalid BindTimeoutSeconds, should not be a negative value")
+		allErrs = append(allErrs, field.Invalid(path.Child("bindTimeoutSeconds"), args.BindTimeoutSeconds, "invalid BindTimeoutSeconds, should not be a negative value"))
 	}
 
-	return err
+	if utilfeature.DefaultFeatureGate.Enabled(features.VolumeCapacityPriority) {
+		allErrs = append(allErrs, validateFunctionShape(args.Shape, path.Child("shape"))...)
+	} else if args.Shape != nil {
+		// When the feature is off, return an error if the config is not nil.
+		// This prevents unexpected configuration from taking effect when the
+		// feature turns on in the future.
+		allErrs = append(allErrs, field.Invalid(path.Child("shape"), args.Shape, "unexpected field `shape`, remove it or turn on the feature gate VolumeCapacityPriority"))
+	}
+	return allErrs.ToAggregate()
 }
 
 func ValidateNodeResourcesFitArgs(path *field.Path, args *config.NodeResourcesFitArgs) error {

pkg/scheduler/apis/config/validation/validation_pluginargs_test.go

@@ -25,7 +25,12 @@ import (
 	"github.com/google/go-cmp/cmp/cmpopts"
 	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/util/errors"
 	"k8s.io/apimachinery/pkg/util/validation/field"
+	"k8s.io/apiserver/pkg/util/feature"
+	"k8s.io/component-base/featuregate"
+	featuregatetesting "k8s.io/component-base/featuregate/testing"
+	"k8s.io/kubernetes/pkg/features"
 	"k8s.io/kubernetes/pkg/scheduler/apis/config"
 )
 
@@ -950,9 +955,10 @@ func TestValidateNodeAffinityArgs(t *testing.T) {
 
 func TestValidateVolumeBindingArgs(t *testing.T) {
 	cases := []struct {
-		name    string
-		args    config.VolumeBindingArgs
-		wantErr error
+		name     string
+		args     config.VolumeBindingArgs
+		features map[featuregate.Feature]bool
+		wantErr  error
 	}{
 		{
 			name: "zero is a valid config",
@@ -971,14 +977,112 @@ func TestValidateVolumeBindingArgs(t *testing.T) {
 			args: config.VolumeBindingArgs{
 				BindTimeoutSeconds: -10,
 			},
-			wantErr: &field.Error{
-				Type:  field.ErrorTypeInvalid,
-				Field: "bindTimeoutSeconds",
+			wantErr: errors.NewAggregate([]error{&field.Error{
+				Type:     field.ErrorTypeInvalid,
+				Field:    "bindTimeoutSeconds",
+				BadValue: int64(-10),
+				Detail:   "invalid BindTimeoutSeconds, should not be a negative value",
+			}}),
+		},
+		{
+			name: "[VolumeCapacityPriority=off] shape should be nil when the feature is off",
+			features: map[featuregate.Feature]bool{
+				features.VolumeCapacityPriority: false,
+			},
+			args: config.VolumeBindingArgs{
+				BindTimeoutSeconds: 10,
+				Shape:              nil,
 			},
 		},
+		{
+			name: "[VolumeCapacityPriority=off] error if the shape is not nil when the feature is off",
+			features: map[featuregate.Feature]bool{
+				features.VolumeCapacityPriority: false,
+			},
+			args: config.VolumeBindingArgs{
+				BindTimeoutSeconds: 10,
+				Shape: []config.UtilizationShapePoint{
+					{Utilization: 1, Score: 1},
+					{Utilization: 3, Score: 3},
+				},
+			},
+			wantErr: errors.NewAggregate([]error{&field.Error{
+				Type:  field.ErrorTypeInvalid,
+				Field: "shape",
+			}}),
+		},
+		{
+			name: "[VolumeCapacityPriority=on] shape should not be empty",
+			features: map[featuregate.Feature]bool{
+				features.VolumeCapacityPriority: true,
+			},
+			args: config.VolumeBindingArgs{
+				BindTimeoutSeconds: 10,
+				Shape:              []config.UtilizationShapePoint{},
+			},
+			wantErr: errors.NewAggregate([]error{&field.Error{
+				Type:  field.ErrorTypeRequired,
+				Field: "shape",
+			}}),
+		},
+		{
+			name: "[VolumeCapacityPriority=on] shape points must be sorted in increasing order",
+			features: map[featuregate.Feature]bool{
+				features.VolumeCapacityPriority: true,
+			},
+			args: config.VolumeBindingArgs{
+				BindTimeoutSeconds: 10,
+				Shape: []config.UtilizationShapePoint{
+					{Utilization: 3, Score: 3},
+					{Utilization: 1, Score: 1},
+				},
+			},
+			wantErr: errors.NewAggregate([]error{&field.Error{
+				Type:   field.ErrorTypeInvalid,
+				Field:  "shape[1].utilization",
+				Detail: "Invalid value: 1: utilization values must be sorted in increasing order",
+			}}),
+		},
+		{
+			name: "[VolumeCapacityPriority=on] shape point: invalid utilization and score",
+			features: map[featuregate.Feature]bool{
+				features.VolumeCapacityPriority: true,
+			},
+			args: config.VolumeBindingArgs{
+				BindTimeoutSeconds: 10,
+				Shape: []config.UtilizationShapePoint{
+					{Utilization: -1, Score: 1},
+					{Utilization: 10, Score: -1},
+					{Utilization: 20, Score: 11},
+					{Utilization: 101, Score: 1},
+				},
+			},
+			wantErr: errors.NewAggregate([]error{
+				&field.Error{
+					Type:  field.ErrorTypeInvalid,
+					Field: "shape[0].utilization",
+				},
+				&field.Error{
+					Type:  field.ErrorTypeInvalid,
+					Field: "shape[1].score",
+				},
+				&field.Error{
+					Type:  field.ErrorTypeInvalid,
+					Field: "shape[2].score",
+				},
+				&field.Error{
+					Type:  field.ErrorTypeInvalid,
+					Field: "shape[3].utilization",
+				},
+			}),
+		},
 	}
+
 	for _, tc := range cases {
 		t.Run(tc.name, func(t *testing.T) {
+			for k, v := range tc.features {
+				defer featuregatetesting.SetFeatureGateDuringTest(t, feature.DefaultFeatureGate, k, v)()
+			}
 			err := ValidateVolumeBindingArgs(nil, &tc.args)
 			if diff := cmp.Diff(tc.wantErr, err, ignoreBadValueDetail); diff != "" {
 				t.Errorf("ValidateVolumeBindingArgs returned err (-want,+got):\n%s", diff)

pkg/scheduler/apis/config/zz_generated.deepcopy.go

@@ -970,6 +970,11 @@ func (in *UtilizationShapePoint) DeepCopy() *UtilizationShapePoint {
 func (in *VolumeBindingArgs) DeepCopyInto(out *VolumeBindingArgs) {
 	*out = *in
 	out.TypeMeta = in.TypeMeta
+	if in.Shape != nil {
+		in, out := &in.Shape, &out.Shape
+		*out = make([]UtilizationShapePoint, len(*in))
+		copy(*out, *in)
+	}
 	return
 }
 

pkg/scheduler/framework/plugins/volumebinding/volume_binding.go

@@ -221,20 +221,6 @@ func (pl *VolumeBinding) Filter(ctx context.Context, cs *framework.CycleState, p
 	return nil
 }
 
-var (
-	// TODO (for alpha) make it configurable in config.VolumeBindingArgs
-	defaultShapePoint = []config.UtilizationShapePoint{
-		{
-			Utilization: 0,
-			Score:       0,
-		},
-		{
-			Utilization: 100,
-			Score:       int32(config.MaxCustomPriorityScore),
-		},
-	}
-)
-
 // Score invoked at the score extension point.
 func (pl *VolumeBinding) Score(ctx context.Context, cs *framework.CycleState, pod *v1.Pod, nodeName string) (int64, *framework.Status) {
 	if pl.scorer == nil {
@@ -363,8 +349,8 @@ func New(plArgs runtime.Object, fh framework.Handle) (framework.Plugin, error) {
 	// build score function
 	var scorer volumeCapacityScorer
 	if utilfeature.DefaultFeatureGate.Enabled(features.VolumeCapacityPriority) {
-		shape := make(helper.FunctionShape, 0, len(defaultShapePoint))
-		for _, point := range defaultShapePoint {
+		shape := make(helper.FunctionShape, 0, len(args.Shape))
+		for _, point := range args.Shape {
 			shape = append(shape, helper.FunctionShapePoint{
 				Utilization: int64(point.Utilization),
 				Score:       int64(point.Score) * (framework.MaxNodeScore / config.MaxCustomPriorityScore),

pkg/scheduler/framework/plugins/volumebinding/volume_binding_test.go

@@ -62,6 +62,17 @@ var (
 		},
 		VolumeBindingMode: &waitForFirstConsumer,
 	}
+
+	defaultShapePoint = []config.UtilizationShapePoint{
+		{
+			Utilization: 0,
+			Score:       0,
+		},
+		{
+			Utilization: 100,
+			Score:       int32(config.MaxCustomPriorityScore),
+		},
+	}
 )
 
 func makeNode(name string) *v1.Node {
@@ -178,6 +189,7 @@ func TestVolumeBinding(t *testing.T) {
 		pvcs                    []*v1.PersistentVolumeClaim
 		pvs                     []*v1.PersistentVolume
 		feature                 featuregate.Feature
+		args                    *config.VolumeBindingArgs
 		wantPreFilterStatus     *framework.Status
 		wantStateAfterPreFilter *stateData
 		wantFilterStatus        []*framework.Status
@@ -524,6 +536,99 @@ func TestVolumeBinding(t *testing.T) {
 				0,
 			},
 		},
+		{
+			name: "zonal volumes with close capacity are preferred (custom shape)",
+			pod:  makePod("pod-a", []string{"pvc-a"}),
+			nodes: []*v1.Node{
+				mergeNodeLabels(makeNode("zone-a-node-a"), map[string]string{
+					"topology.kubernetes.io/region": "region-a",
+					"topology.kubernetes.io/zone":   "zone-a",
+				}),
+				mergeNodeLabels(makeNode("zone-a-node-b"), map[string]string{
+					"topology.kubernetes.io/region": "region-a",
+					"topology.kubernetes.io/zone":   "zone-a",
+				}),
+				mergeNodeLabels(makeNode("zone-b-node-a"), map[string]string{
+					"topology.kubernetes.io/region": "region-b",
+					"topology.kubernetes.io/zone":   "zone-b",
+				}),
+				mergeNodeLabels(makeNode("zone-b-node-b"), map[string]string{
+					"topology.kubernetes.io/region": "region-b",
+					"topology.kubernetes.io/zone":   "zone-b",
+				}),
+				mergeNodeLabels(makeNode("zone-c-node-a"), map[string]string{
+					"topology.kubernetes.io/region": "region-c",
+					"topology.kubernetes.io/zone":   "zone-c",
+				}),
+				mergeNodeLabels(makeNode("zone-c-node-b"), map[string]string{
+					"topology.kubernetes.io/region": "region-c",
+					"topology.kubernetes.io/zone":   "zone-c",
+				}),
+			},
+			pvcs: []*v1.PersistentVolumeClaim{
+				setPVCRequestStorage(makePVC("pvc-a", "", waitSC.Name), resource.MustParse("50Gi")),
+			},
+			pvs: []*v1.PersistentVolume{
+				setPVNodeAffinity(setPVCapacity(makePV("pv-a-0", waitSC.Name), resource.MustParse("200Gi")), map[string][]string{
+					"topology.kubernetes.io/region": {"region-a"},
+					"topology.kubernetes.io/zone":   {"zone-a"},
+				}),
+				setPVNodeAffinity(setPVCapacity(makePV("pv-a-1", waitSC.Name), resource.MustParse("200Gi")), map[string][]string{
+					"topology.kubernetes.io/region": {"region-a"},
+					"topology.kubernetes.io/zone":   {"zone-a"},
+				}),
+				setPVNodeAffinity(setPVCapacity(makePV("pv-b-0", waitSC.Name), resource.MustParse("100Gi")), map[string][]string{
+					"topology.kubernetes.io/region": {"region-b"},
+					"topology.kubernetes.io/zone":   {"zone-b"},
+				}),
+				setPVNodeAffinity(setPVCapacity(makePV("pv-b-1", waitSC.Name), resource.MustParse("100Gi")), map[string][]string{
+					"topology.kubernetes.io/region": {"region-b"},
+					"topology.kubernetes.io/zone":   {"zone-b"},
+				}),
+			},
+			feature: features.VolumeCapacityPriority,
+			args: &config.VolumeBindingArgs{
+				BindTimeoutSeconds: 300,
+				Shape: []config.UtilizationShapePoint{
+					{
+						Utilization: 0,
+						Score:       0,
+					},
+					{
+						Utilization: 50,
+						Score:       3,
+					},
+					{
+						Utilization: 100,
+						Score:       5,
+					},
+				},
+			},
+			wantPreFilterStatus: nil,
+			wantStateAfterPreFilter: &stateData{
+				boundClaims: []*v1.PersistentVolumeClaim{},
+				claimsToBind: []*v1.PersistentVolumeClaim{
+					setPVCRequestStorage(makePVC("pvc-a", "", waitSC.Name), resource.MustParse("50Gi")),
+				},
+				podVolumesByNode: map[string]*scheduling.PodVolumes{},
+			},
+			wantFilterStatus: []*framework.Status{
+				nil,
+				nil,
+				nil,
+				nil,
+				framework.NewStatus(framework.UnschedulableAndUnresolvable, `node(s) didn't find available persistent volumes to bind`),
+				framework.NewStatus(framework.UnschedulableAndUnresolvable, `node(s) didn't find available persistent volumes to bind`),
+			},
+			wantScores: []int64{
+				15,
+				15,
+				30,
+				30,
+				0,
+				0,
+			},
+		},
 	}
 
 	for _, item := range table {
@@ -543,9 +648,19 @@ func TestVolumeBinding(t *testing.T) {
 			if err != nil {
 				t.Fatal(err)
 			}
-			pl, err := New(&config.VolumeBindingArgs{
-				BindTimeoutSeconds: 300,
-			}, fh)
+
+			args := item.args
+			if args == nil {
+				// default args if the args is not specified in test cases
+				args = &config.VolumeBindingArgs{
+					BindTimeoutSeconds: 300,
+				}
+				if utilfeature.DefaultFeatureGate.Enabled(features.VolumeCapacityPriority) {
+					args.Shape = defaultShapePoint
+				}
+			}
+
+			pl, err := New(args, fh)
 			if err != nil {
 				t.Fatal(err)
 			}

staging/src/k8s.io/kube-scheduler/config/v1beta1/types_pluginargs.go

@@ -226,6 +226,22 @@ type VolumeBindingArgs struct {
 	// Value must be non-negative integer. The value zero indicates no waiting.
 	// If this value is nil, the default value (600) will be used.
 	BindTimeoutSeconds *int64 `json:"bindTimeoutSeconds,omitempty"`
+
+	// Shape specifies the points defining the score function shape, which is
+	// used to score nodes based on the utilization of statically provisioned
+	// PVs. The utilization is calculated by dividing the total requested
+	// storage of the pod by the total capacity of feasible PVs on each node.
+	// Each point contains utilization (ranges from 0 to 100) and its
+	// associated score (ranges from 0 to 10). You can turn the priority by
+	// specifying different scores for different utilization numbers.
+	// The default shape points are:
+	// 1) 0 for 0 utilization
+	// 2) 10 for 100 utilization
+	// All points must be sorted in increasing order by utilization.
+	// +featureGate=VolumeCapacityPriority
+	// +optional
+	// +listType=atomic
+	Shape []UtilizationShapePoint `json:"shape,omitempty"`
 }
 
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object

staging/src/k8s.io/kube-scheduler/config/v1beta1/zz_generated.deepcopy.go

@@ -727,6 +727,11 @@ func (in *VolumeBindingArgs) DeepCopyInto(out *VolumeBindingArgs) {
 		*out = new(int64)
 		**out = **in
 	}
+	if in.Shape != nil {
+		in, out := &in.Shape, &out.Shape
+		*out = make([]UtilizationShapePoint, len(*in))
+		copy(*out, *in)
+	}
 	return
 }
 

staging/src/k8s.io/kube-scheduler/config/v1beta2/types_pluginargs.go

@@ -142,6 +142,22 @@ type VolumeBindingArgs struct {
 	// Value must be non-negative integer. The value zero indicates no waiting.
 	// If this value is nil, the default value (600) will be used.
 	BindTimeoutSeconds *int64 `json:"bindTimeoutSeconds,omitempty"`
+
+	// Shape specifies the points defining the score function shape, which is
+	// used to score nodes based on the utilization of statically provisioned
+	// PVs. The utilization is calculated by dividing the total requested
+	// storage of the pod by the total capacity of feasible PVs on each node.
+	// Each point contains utilization (ranges from 0 to 100) and its
+	// associated score (ranges from 0 to 10). You can turn the priority by
+	// specifying different scores for different utilization numbers.
+	// The default shape points are:
+	// 1) 0 for 0 utilization
+	// 2) 10 for 100 utilization
+	// All points must be sorted in increasing order by utilization.
+	// +featureGate=VolumeCapacityPriority
+	// +optional
+	// +listType=atomic
+	Shape []UtilizationShapePoint `json:"shape,omitempty"`
 }
 
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object

staging/src/k8s.io/kube-scheduler/config/v1beta2/zz_generated.deepcopy.go

@@ -508,6 +508,11 @@ func (in *VolumeBindingArgs) DeepCopyInto(out *VolumeBindingArgs) {
 		*out = new(int64)
 		**out = **in
 	}
+	if in.Shape != nil {
+		in, out := &in.Shape, &out.Shape
+		*out = make([]UtilizationShapePoint, len(*in))
+		copy(*out, *in)
+	}
 	return
 }