Removes alpha feature gate for affinity annotations. Beta fields should be used.

pkg/api/annotation_key_constants.go

@@ -72,11 +72,6 @@ const (
 	// This annotation can be attached to node.
 	ObjectTTLAnnotationKey string = "node.alpha.kubernetes.io/ttl"
 
-	// AffinityAnnotationKey represents the key of affinity data (json serialized)
-	// in the Annotations of a Pod.
-	// TODO: remove when alpha support for affinity is removed
-	AffinityAnnotationKey string = "scheduler.alpha.kubernetes.io/affinity"
-
 	// annotation key prefix used to identify non-convertible json paths.
 	NonConvertibleAnnotationPrefix = "non-convertible.kubernetes.io"
 

pkg/api/helper/helpers.go

@@ -519,21 +519,6 @@ func PodAnnotationsFromSysctls(sysctls []api.Sysctl) string {
 	return strings.Join(kvs, ",")
 }
 
-// GetAffinityFromPodAnnotations gets the json serialized affinity data from Pod.Annotations
-// and converts it to the Affinity type in api.
-// TODO: remove when alpha support for affinity is removed
-func GetAffinityFromPodAnnotations(annotations map[string]string) (*api.Affinity, error) {
-	if len(annotations) > 0 && annotations[api.AffinityAnnotationKey] != "" {
-		var affinity api.Affinity
-		err := json.Unmarshal([]byte(annotations[api.AffinityAnnotationKey]), &affinity)
-		if err != nil {
-			return nil, err
-		}
-		return &affinity, nil
-	}
-	return nil, nil
-}
-
 // GetPersistentVolumeClass returns StorageClassName.
 func GetPersistentVolumeClass(volume *api.PersistentVolume) string {
 	// Use beta annotation first

pkg/api/v1/helper/helpers.go

@@ -445,21 +445,6 @@ func RemoveTaint(node *v1.Node, taint *v1.Taint) (*v1.Node, bool, error) {
 	return newNode, true, nil
 }
 
-// GetAffinityFromPodAnnotations gets the json serialized affinity data from Pod.Annotations
-// and converts it to the Affinity type in api.
-// TODO: remove when alpha support for affinity is removed
-func GetAffinityFromPodAnnotations(annotations map[string]string) (*v1.Affinity, error) {
-	if len(annotations) > 0 && annotations[v1.AffinityAnnotationKey] != "" {
-		var affinity v1.Affinity
-		err := json.Unmarshal([]byte(annotations[v1.AffinityAnnotationKey]), &affinity)
-		if err != nil {
-			return nil, err
-		}
-		return &affinity, nil
-	}
-	return nil, nil
-}
-
 // GetPersistentVolumeClass returns StorageClassName.
 func GetPersistentVolumeClass(volume *v1.PersistentVolume) string {
 	// Use beta annotation first

pkg/api/v1/helper/helpers_test.go

@@ -443,63 +443,6 @@ func TestSysctlsFromPodAnnotation(t *testing.T) {
 	}
 }
 
-// TODO: remove when alpha support for affinity is removed
-func TestGetAffinityFromPodAnnotations(t *testing.T) {
-	testCases := []struct {
-		pod       *v1.Pod
-		expectErr bool
-	}{
-		{
-			pod:       &v1.Pod{},
-			expectErr: false,
-		},
-		{
-			pod: &v1.Pod{
-				ObjectMeta: metav1.ObjectMeta{
-					Annotations: map[string]string{
-						v1.AffinityAnnotationKey: `
-						{"nodeAffinity": { "requiredDuringSchedulingIgnoredDuringExecution": {
-							"nodeSelectorTerms": [{
-								"matchExpressions": [{
-									"key": "foo",
-									"operator": "In",
-									"values": ["value1", "value2"]
-								}]
-							}]
-						}}}`,
-					},
-				},
-			},
-			expectErr: false,
-		},
-		{
-			pod: &v1.Pod{
-				ObjectMeta: metav1.ObjectMeta{
-					Annotations: map[string]string{
-						v1.AffinityAnnotationKey: `
-						{"nodeAffinity": { "requiredDuringSchedulingIgnoredDuringExecution": {
-							"nodeSelectorTerms": [{
-								"matchExpressions": [{
-									"key": "foo",
-						`,
-					},
-				},
-			},
-			expectErr: true,
-		},
-	}
-
-	for i, tc := range testCases {
-		_, err := GetAffinityFromPodAnnotations(tc.pod.Annotations)
-		if err == nil && tc.expectErr {
-			t.Errorf("[%v]expected error but got none.", i)
-		}
-		if err != nil && !tc.expectErr {
-			t.Errorf("[%v]did not expect error but got: %v", i, err)
-		}
-	}
-}
-
 // TODO: remove when alpha support for topology constraints is removed
 func TestGetNodeAffinityFromAnnotations(t *testing.T) {
 	testCases := []struct {

pkg/api/validation/validation.go

@@ -110,10 +110,6 @@ func ValidateDNS1123Subdomain(value string, fldPath *field.Path) field.ErrorList
 func ValidatePodSpecificAnnotations(annotations map[string]string, spec *api.PodSpec, fldPath *field.Path) field.ErrorList {
 	allErrs := field.ErrorList{}
 
-	if annotations[api.AffinityAnnotationKey] != "" {
-		allErrs = append(allErrs, ValidateAffinityInPodAnnotations(annotations, fldPath)...)
-	}
-
 	if value, isMirror := annotations[api.MirrorPodAnnotationKey]; isMirror {
 		if len(spec.NodeName) == 0 {
 			allErrs = append(allErrs, field.Invalid(fldPath.Key(api.MirrorPodAnnotationKey), value, "must set spec.nodeName if mirror pod annotation is set"))
@@ -164,23 +160,6 @@ func ValidateTolerationsInPodAnnotations(annotations map[string]string, fldPath
 	return allErrs
 }
 
-// ValidateAffinityInPodAnnotations tests that the serialized Affinity in Pod.Annotations has valid data
-func ValidateAffinityInPodAnnotations(annotations map[string]string, fldPath *field.Path) field.ErrorList {
-	allErrs := field.ErrorList{}
-
-	affinity, err := helper.GetAffinityFromPodAnnotations(annotations)
-	if err != nil {
-		allErrs = append(allErrs, field.Invalid(fldPath, api.AffinityAnnotationKey, err.Error()))
-		return allErrs
-	}
-	if affinity == nil {
-		return allErrs
-	}
-
-	allErrs = append(allErrs, validateAffinity(affinity, fldPath.Child("affinity"))...)
-	return allErrs
-}
-
 func ValidatePodSpecificAnnotationUpdates(newPod, oldPod *api.Pod, fldPath *field.Path) field.ErrorList {
 	allErrs := field.ErrorList{}
 	newAnnotations := newPod.Annotations
@@ -2430,9 +2409,7 @@ func ValidatePreferredSchedulingTerms(terms []api.PreferredSchedulingTerm, fldPa
 // validatePodAffinityTerm tests that the specified podAffinityTerm fields have valid data
 func validatePodAffinityTerm(podAffinityTerm api.PodAffinityTerm, allowEmptyTopologyKey bool, fldPath *field.Path) field.ErrorList {
 	allErrs := field.ErrorList{}
-	if !utilfeature.DefaultFeatureGate.Enabled(features.AffinityInAnnotations) && len(podAffinityTerm.TopologyKey) == 0 {
-		allErrs = append(allErrs, field.Required(fldPath.Child("topologyKey"), "can not be empty"))
-	}
+
 	allErrs = append(allErrs, unversionedvalidation.ValidateLabelSelector(podAffinityTerm.LabelSelector, fldPath.Child("matchExpressions"))...)
 	for _, name := range podAffinityTerm.Namespaces {
 		for _, msg := range ValidateNamespaceName(name, false) {

pkg/api/validation/validation_test.go

@@ -5044,7 +5044,7 @@ func TestValidatePod(t *testing.T) {
 	}
 }
 
-func TestValidatePodWithDisabledAffinityInAnnotations(t *testing.T) {
+func TestValidatePodWithAffinity(t *testing.T) {
 	validPodSpec := func(affinity *api.Affinity) api.PodSpec {
 		spec := api.PodSpec{
 			Containers:    []api.Container{{Name: "ctr", Image: "image", ImagePullPolicy: "IfNotPresent", TerminationMessagePolicy: "File"}},
@@ -5057,7 +5057,6 @@ func TestValidatePodWithDisabledAffinityInAnnotations(t *testing.T) {
 		return spec
 	}
 
-	utilfeature.DefaultFeatureGate.Set("AffinityInAnnotations=False")
 	errorCases := []api.Pod{
 		{
 			ObjectMeta: metav1.ObjectMeta{Name: "123", Namespace: "ns"},
@@ -5129,29 +5128,30 @@ func TestValidatePodWithDisabledAffinityInAnnotations(t *testing.T) {
 			}),
 		},
 		{
-			ObjectMeta: metav1.ObjectMeta{Name: "123", Namespace: "ns"},
-			Spec: validPodSpec(&api.Affinity{
-				PodAntiAffinity: &api.PodAntiAffinity{
-					PreferredDuringSchedulingIgnoredDuringExecution: []api.WeightedPodAffinityTerm{
-						{
-							Weight: 10,
-							PodAffinityTerm: api.PodAffinityTerm{
-								LabelSelector: &metav1.LabelSelector{
-									MatchExpressions: []metav1.LabelSelectorRequirement{
-										{
-											Key:      "key2",
-											Operator: metav1.LabelSelectorOpNotIn,
-											Values:   []string{"value1", "value2"},
-										},
+		/* TODO: Re-enable if/when topologykey is required.
+		ObjectMeta: metav1.ObjectMeta{Name: "123", Namespace: "ns"},
+		Spec: validPodSpec(&api.Affinity{
+			PodAntiAffinity: &api.PodAntiAffinity{
+				PreferredDuringSchedulingIgnoredDuringExecution: []api.WeightedPodAffinityTerm{
+					{
+						Weight: 10,
+						PodAffinityTerm: api.PodAffinityTerm{
+							LabelSelector: &metav1.LabelSelector{
+								MatchExpressions: []metav1.LabelSelectorRequirement{
+									{
+										Key:      "key2",
+										Operator: metav1.LabelSelectorOpNotIn,
+										Values:   []string{"value1", "value2"},
 									},
 								},
-								Namespaces:  []string{"ns"},
-								TopologyKey: "",
 							},
+							Namespaces:  []string{"ns"},
+							TopologyKey: "",
 						},
 					},
 				},
-			}),
+			},
+		}),*/
 		},
 	}
 

pkg/features/kube_features.go

@@ -67,13 +67,6 @@ const (
 	// Note: This feature is not supported for `BestEffort` pods.
 	ExperimentalCriticalPodAnnotation utilfeature.Feature = "ExperimentalCriticalPodAnnotation"
 
-	// owner: @davidopp
-	// alpha: v1.6
-	//
-	// Determines if affinity defined in annotations should be processed
-	// TODO: remove when alpha support for affinity is removed
-	AffinityInAnnotations utilfeature.Feature = "AffinityInAnnotations"
-
 	// owner: @vishh
 	// alpha: v1.6
 	//
@@ -137,7 +130,6 @@ var defaultKubernetesFeatureGates = map[utilfeature.Feature]utilfeature.FeatureS
 	DynamicVolumeProvisioning:                   {Default: true, PreRelease: utilfeature.Alpha},
 	ExperimentalHostUserNamespaceDefaultingGate: {Default: false, PreRelease: utilfeature.Beta},
 	ExperimentalCriticalPodAnnotation:           {Default: false, PreRelease: utilfeature.Alpha},
-	AffinityInAnnotations:                       {Default: false, PreRelease: utilfeature.Alpha},
 	Accelerators:                                {Default: false, PreRelease: utilfeature.Alpha},
 	TaintBasedEvictions:                         {Default: false, PreRelease: utilfeature.Alpha},
 	RotateKubeletServerCertificate:              {Default: false, PreRelease: utilfeature.Alpha},

plugin/pkg/scheduler/algorithm/predicates/BUILD

@@ -59,7 +59,6 @@ go_test(
         "//vendor/k8s.io/apimachinery/pkg/api/resource:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/labels:go_default_library",
-        "//vendor/k8s.io/apiserver/pkg/util/feature:go_default_library",
     ],
 )
 

plugin/pkg/scheduler/algorithm/predicates/predicates.go

@@ -663,7 +663,7 @@ func podMatchesNodeLabels(pod *v1.Pod, node *v1.Node) bool {
 	// 5. zero-length non-nil []NodeSelectorRequirement matches no nodes also, just for simplicity
 	// 6. non-nil empty NodeSelectorRequirement is not allowed
 	nodeAffinityMatches := true
-	affinity := schedulercache.ReconcileAffinity(pod)
+	affinity := pod.Spec.Affinity
 	if affinity != nil && affinity.NodeAffinity != nil {
 		nodeAffinity := affinity.NodeAffinity
 		// if no required NodeAffinity requirements, will do no-op, means select all nodes.
@@ -985,7 +985,7 @@ func (c *PodAffinityChecker) InterPodAffinityMatches(pod *v1.Pod, meta interface
 	}
 
 	// Now check if <pod> requirements will be satisfied on this node.
-	affinity := schedulercache.ReconcileAffinity(pod)
+	affinity := pod.Spec.Affinity
 	if affinity == nil || (affinity.PodAffinity == nil && affinity.PodAntiAffinity == nil) {
 		return true, nil, nil
 	}
@@ -1089,7 +1089,7 @@ func getMatchingAntiAffinityTerms(pod *v1.Pod, nodeInfoMap map[string]*scheduler
 		}
 		var nodeResult []matchingPodAntiAffinityTerm
 		for _, existingPod := range nodeInfo.PodsWithAffinity() {
-			affinity := schedulercache.ReconcileAffinity(existingPod)
+			affinity := existingPod.Spec.Affinity
 			if affinity == nil {
 				continue
 			}
@@ -1116,7 +1116,7 @@ func getMatchingAntiAffinityTerms(pod *v1.Pod, nodeInfoMap map[string]*scheduler
 func (c *PodAffinityChecker) getMatchingAntiAffinityTerms(pod *v1.Pod, allPods []*v1.Pod) ([]matchingPodAntiAffinityTerm, error) {
 	var result []matchingPodAntiAffinityTerm
 	for _, existingPod := range allPods {
-		affinity := schedulercache.ReconcileAffinity(existingPod)
+		affinity := existingPod.Spec.Affinity
 		if affinity != nil && affinity.PodAntiAffinity != nil {
 			existingPodNode, err := c.info.GetNodeInfo(existingPod.Spec.NodeName)
 			if err != nil {

plugin/pkg/scheduler/algorithm/priorities/BUILD

@@ -71,7 +71,6 @@ go_test(
         "//vendor/k8s.io/api/extensions/v1beta1:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/api/resource:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
-        "//vendor/k8s.io/apiserver/pkg/util/feature:go_default_library",
     ],
 )
 

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

@@ -117,7 +117,7 @@ func (p *podAffinityPriorityMap) processTerms(terms []v1.WeightedPodAffinityTerm
 // Symmetry need to be considered for preferredDuringSchedulingIgnoredDuringExecution from podAffinity & podAntiAffinity,
 // symmetry need to be considered for hard requirements from podAffinity
 func (ipa *InterPodAffinity) CalculateInterPodAffinityPriority(pod *v1.Pod, nodeNameToInfo map[string]*schedulercache.NodeInfo, nodes []*v1.Node) (schedulerapi.HostPriorityList, error) {
-	affinity := schedulercache.ReconcileAffinity(pod)
+	affinity := pod.Spec.Affinity
 	hasAffinityConstraints := affinity != nil && affinity.PodAffinity != nil
 	hasAntiAffinityConstraints := affinity != nil && affinity.PodAntiAffinity != nil
 
@@ -138,7 +138,7 @@ func (ipa *InterPodAffinity) CalculateInterPodAffinityPriority(pod *v1.Pod, node
 		if err != nil {
 			return err
 		}
-		existingPodAffinity := schedulercache.ReconcileAffinity(existingPod)
+		existingPodAffinity := existingPod.Spec.Affinity
 		existingHasAffinityConstraints := existingPodAffinity != nil && existingPodAffinity.PodAffinity != nil
 		existingHasAntiAffinityConstraints := existingPodAffinity != nil && existingPodAffinity.PodAntiAffinity != nil
 

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

@@ -38,6 +38,6 @@ func PriorityMetadata(pod *v1.Pod, nodeNameToInfo map[string]*schedulercache.Nod
 	return &priorityMetadata{
 		nonZeroRequest: getNonZeroRequests(pod),
 		podTolerations: tolerationsPreferNoSchedule,
-		affinity:       schedulercache.ReconcileAffinity(pod),
+		affinity:       pod.Spec.Affinity,
 	}
 }

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

@@ -43,7 +43,7 @@ func CalculateNodeAffinityPriorityMap(pod *v1.Pod, meta interface{}, nodeInfo *s
 		affinity = priorityMeta.affinity
 	} else {
 		// We couldn't parse metadata - fallback to the podspec.
-		affinity = schedulercache.ReconcileAffinity(pod)
+		affinity = pod.Spec.Affinity
 	}
 
 	var count int32

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

@@ -22,7 +22,6 @@ import (
 
 	"k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	schedulerapi "k8s.io/kubernetes/plugin/pkg/scheduler/api"
 	"k8s.io/kubernetes/plugin/pkg/scheduler/schedulercache"
 )
@@ -178,147 +177,3 @@ func TestNodeAffinityPriority(t *testing.T) {
 		}
 	}
 }
-
-// TODO: remove when alpha support for affinity is removed
-func TestNodeAffinityAnnotationsPriority(t *testing.T) {
-	utilfeature.DefaultFeatureGate.Set("AffinityInAnnotations=true")
-	label1 := map[string]string{"foo": "bar"}
-	label2 := map[string]string{"key": "value"}
-	label3 := map[string]string{"az": "az1"}
-	label4 := map[string]string{"abc": "az11", "def": "az22"}
-	label5 := map[string]string{"foo": "bar", "key": "value", "az": "az1"}
-
-	affinity1 := map[string]string{
-		v1.AffinityAnnotationKey: `
-		{"nodeAffinity": {"preferredDuringSchedulingIgnoredDuringExecution": [
-			{
-				"weight": 2,
-				"preference": {
-					"matchExpressions": [
-						{
-							"key": "foo",
-							"operator": "In", "values": ["bar"]
-						}
-					]
-				}
-			}
-		]}}`,
-	}
-
-	affinity2 := map[string]string{
-		v1.AffinityAnnotationKey: `
-		{"nodeAffinity": {"preferredDuringSchedulingIgnoredDuringExecution": [
-			{
-				"weight": 2,
-				"preference": {"matchExpressions": [
-					{
-						"key": "foo",
-						"operator": "In", "values": ["bar"]
-					}
-				]}
-			},
-			{
-				"weight": 4,
-				"preference": {"matchExpressions": [
-					{
-						"key": "key",
-						"operator": "In", "values": ["value"]
-					}
-				]}
-			},
-			{
-				"weight": 5,
-				"preference": {"matchExpressions": [
-					{
-						"key": "foo",
-						"operator": "In", "values": ["bar"]
-					},
-					{
-						"key": "key",
-						"operator": "In", "values": ["value"]
-					},
-					{
-						"key": "az",
-						"operator": "In", "values": ["az1"]
-					}
-				]}
-			}
-		]}}`,
-	}
-
-	tests := []struct {
-		pod          *v1.Pod
-		nodes        []*v1.Node
-		expectedList schedulerapi.HostPriorityList
-		test         string
-	}{
-		{
-			pod: &v1.Pod{
-				ObjectMeta: metav1.ObjectMeta{
-					Annotations: map[string]string{},
-				},
-			},
-			nodes: []*v1.Node{
-				{ObjectMeta: metav1.ObjectMeta{Name: "machine1", Labels: label1}},
-				{ObjectMeta: metav1.ObjectMeta{Name: "machine2", Labels: label2}},
-				{ObjectMeta: metav1.ObjectMeta{Name: "machine3", Labels: label3}},
-			},
-			expectedList: []schedulerapi.HostPriority{{Host: "machine1", Score: 0}, {Host: "machine2", Score: 0}, {Host: "machine3", Score: 0}},
-			test:         "all machines are same priority as NodeAffinity is nil",
-		},
-		{
-			pod: &v1.Pod{
-				ObjectMeta: metav1.ObjectMeta{
-					Annotations: affinity1,
-				},
-			},
-			nodes: []*v1.Node{
-				{ObjectMeta: metav1.ObjectMeta{Name: "machine1", Labels: label4}},
-				{ObjectMeta: metav1.ObjectMeta{Name: "machine2", Labels: label2}},
-				{ObjectMeta: metav1.ObjectMeta{Name: "machine3", Labels: label3}},
-			},
-			expectedList: []schedulerapi.HostPriority{{Host: "machine1", Score: 0}, {Host: "machine2", Score: 0}, {Host: "machine3", Score: 0}},
-			test:         "no machine macthes preferred scheduling requirements in NodeAffinity of pod so all machines' priority is zero",
-		},
-		{
-			pod: &v1.Pod{
-				ObjectMeta: metav1.ObjectMeta{
-					Annotations: affinity1,
-				},
-			},
-			nodes: []*v1.Node{
-				{ObjectMeta: metav1.ObjectMeta{Name: "machine1", Labels: label1}},
-				{ObjectMeta: metav1.ObjectMeta{Name: "machine2", Labels: label2}},
-				{ObjectMeta: metav1.ObjectMeta{Name: "machine3", Labels: label3}},
-			},
-			expectedList: []schedulerapi.HostPriority{{Host: "machine1", Score: 10}, {Host: "machine2", Score: 0}, {Host: "machine3", Score: 0}},
-			test:         "only machine1 matches the preferred scheduling requirements of pod",
-		},
-		{
-			pod: &v1.Pod{
-				ObjectMeta: metav1.ObjectMeta{
-					Annotations: affinity2,
-				},
-			},
-			nodes: []*v1.Node{
-				{ObjectMeta: metav1.ObjectMeta{Name: "machine1", Labels: label1}},
-				{ObjectMeta: metav1.ObjectMeta{Name: "machine5", Labels: label5}},
-				{ObjectMeta: metav1.ObjectMeta{Name: "machine2", Labels: label2}},
-			},
-			expectedList: []schedulerapi.HostPriority{{Host: "machine1", Score: 1}, {Host: "machine5", Score: 10}, {Host: "machine2", Score: 3}},
-			test:         "all machines matches the preferred scheduling requirements of pod but with different priorities ",
-		},
-	}
-
-	for _, test := range tests {
-		nodeNameToInfo := schedulercache.CreateNodeNameToInfoMap(nil, test.nodes)
-		nap := priorityFunction(CalculateNodeAffinityPriorityMap, CalculateNodeAffinityPriorityReduce)
-		list, err := nap(test.pod, nodeNameToInfo, test.nodes)
-		if err != nil {
-			t.Errorf("unexpected error: %v", err)
-		}
-		if !reflect.DeepEqual(test.expectedList, list) {
-			t.Errorf("%s: \nexpected %#v, \ngot      %#v", test.test, test.expectedList, list)
-		}
-	}
-}

plugin/pkg/scheduler/algorithm/priorities/util/BUILD

@@ -8,6 +8,17 @@ load(
     "go_test",
 )
 
+go_test(
+    name = "go_default_test",
+    srcs = ["topologies_test.go"],
+    library = ":go_default_library",
+    tags = ["automanaged"],
+    deps = [
+        "//vendor/k8s.io/api/core/v1:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
+    ],
+)
+
 go_library(
     name = "go_default_library",
     srcs = [
@@ -17,12 +28,10 @@ go_library(
     ],
     tags = ["automanaged"],
     deps = [
-        "//pkg/features:go_default_library",
         "//vendor/k8s.io/api/core/v1:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/labels:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/util/sets:go_default_library",
-        "//vendor/k8s.io/apiserver/pkg/util/feature:go_default_library",
     ],
 )
 
@@ -38,14 +47,3 @@ filegroup(
     srcs = [":package-srcs"],
     tags = ["automanaged"],
 )
-
-go_test(
-    name = "go_default_test",
-    srcs = ["topologies_test.go"],
-    library = ":go_default_library",
-    tags = ["automanaged"],
-    deps = [
-        "//vendor/k8s.io/api/core/v1:go_default_library",
-        "//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
-    ],
-)

plugin/pkg/scheduler/algorithm/priorities/util/topologies.go

@@ -20,8 +20,6 @@ import (
 	"k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/labels"
 	"k8s.io/apimachinery/pkg/util/sets"
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
-	"k8s.io/kubernetes/pkg/features"
 )
 
 // GetNamespacesFromPodAffinityTerm returns a set of names
@@ -79,15 +77,5 @@ type Topologies struct {
 // NodesHaveSameTopologyKey checks if nodeA and nodeB have same label value with given topologyKey as label key.
 // If the topologyKey is empty, check if the two nodes have any of the default topologyKeys, and have same corresponding label value.
 func (tps *Topologies) NodesHaveSameTopologyKey(nodeA, nodeB *v1.Node, topologyKey string) bool {
-	if utilfeature.DefaultFeatureGate.Enabled(features.AffinityInAnnotations) && len(topologyKey) == 0 {
-		// assumes this is allowed only for PreferredDuringScheduling pod anti-affinity (ensured by api/validation)
-		for _, defaultKey := range tps.DefaultKeys {
-			if NodesHaveSameTopologyKey(nodeA, nodeB, defaultKey) {
-				return true
-			}
-		}
-		return false
-	} else {
-		return NodesHaveSameTopologyKey(nodeA, nodeB, topologyKey)
-	}
+	return NodesHaveSameTopologyKey(nodeA, nodeB, topologyKey)
 }

plugin/pkg/scheduler/schedulercache/BUILD

@@ -14,30 +14,24 @@ go_library(
         "cache.go",
         "interface.go",
         "node_info.go",
-        "reconcile_affinity.go",
         "util.go",
     ],
     tags = ["automanaged"],
     deps = [
         "//pkg/api/v1/helper:go_default_library",
-        "//pkg/features:go_default_library",
         "//plugin/pkg/scheduler/algorithm/priorities/util:go_default_library",
         "//vendor/github.com/golang/glog:go_default_library",
         "//vendor/k8s.io/api/core/v1:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/api/resource:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/labels:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/util/wait:go_default_library",
-        "//vendor/k8s.io/apiserver/pkg/util/feature:go_default_library",
         "//vendor/k8s.io/client-go/tools/cache:go_default_library",
     ],
 )
 
 go_test(
     name = "go_default_test",
-    srcs = [
-        "cache_test.go",
-        "reconcile_affinity_test.go",
-    ],
+    srcs = ["cache_test.go"],
     library = ":go_default_library",
     tags = ["automanaged"],
     deps = [
@@ -48,7 +42,6 @@ go_test(
         "//vendor/k8s.io/apimachinery/pkg/api/resource:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/labels:go_default_library",
-        "//vendor/k8s.io/apiserver/pkg/util/feature:go_default_library",
     ],
 )
 

plugin/pkg/scheduler/schedulercache/node_info.go

@@ -257,7 +257,7 @@ func (n *NodeInfo) String() string {
 }
 
 func hasPodAffinityConstraints(pod *v1.Pod) bool {
-	affinity := ReconcileAffinity(pod)
+	affinity := pod.Spec.Affinity
 	return affinity != nil && (affinity.PodAffinity != nil || affinity.PodAntiAffinity != nil)
 }
 

plugin/pkg/scheduler/schedulercache/reconcile_affinity.go

-/*
-Copyright 2017 The Kubernetes 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 schedulercache
-
-import (
-	"k8s.io/api/core/v1"
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
-	v1helper "k8s.io/kubernetes/pkg/api/v1/helper"
-	"k8s.io/kubernetes/pkg/features"
-)
-
-// Reconcile api and annotation affinity definitions.
-// When alpha affinity feature is not enabled, always take affinity
-// from PodSpec.When alpha affinity feature is enabled, if affinity
-// is not set in PodSpec, take affinity from annotation.
-// When alpha affinity feature is enabled, if affinity is set in PodSpec,
-// take node affinity, pod affinity, and pod anti-affinity individually
-// using the following rule: take affinity from PodSpec if it is defined,
-// otherwise take from annotation if it is defined.
-// TODO: remove when alpha support for affinity is removed
-func ReconcileAffinity(pod *v1.Pod) *v1.Affinity {
-	affinity := pod.Spec.Affinity
-	if utilfeature.DefaultFeatureGate.Enabled(features.AffinityInAnnotations) {
-		annotationsAffinity, _ := v1helper.GetAffinityFromPodAnnotations(pod.Annotations)
-		if affinity == nil && annotationsAffinity != nil {
-			affinity = annotationsAffinity
-		} else if annotationsAffinity != nil {
-			if affinity != nil && affinity.NodeAffinity == nil && annotationsAffinity.NodeAffinity != nil {
-				affinity.NodeAffinity = annotationsAffinity.NodeAffinity
-			}
-			if affinity != nil && affinity.PodAffinity == nil && annotationsAffinity.PodAffinity != nil {
-				affinity.PodAffinity = annotationsAffinity.PodAffinity
-			}
-			if affinity != nil && affinity.PodAntiAffinity == nil && annotationsAffinity.PodAntiAffinity != nil {
-				affinity.PodAntiAffinity = annotationsAffinity.PodAntiAffinity
-			}
-		}
-	}
-	return affinity
-}

plugin/pkg/scheduler/schedulercache/reconcile_affinity_test.go

-/*
-Copyright 2017 The Kubernetes 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 schedulercache
-
-import (
-	"fmt"
-	"reflect"
-	"testing"
-
-	"k8s.io/api/core/v1"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
-)
-
-// TODO: remove when alpha support for affinity is removed
-func TestReconcileAffinity(t *testing.T) {
-	baseAffinity := &v1.Affinity{
-		NodeAffinity: &v1.NodeAffinity{
-			RequiredDuringSchedulingIgnoredDuringExecution: &v1.NodeSelector{
-				NodeSelectorTerms: []v1.NodeSelectorTerm{
-					{
-						MatchExpressions: []v1.NodeSelectorRequirement{
-							{
-								Key:      "foo",
-								Operator: v1.NodeSelectorOpIn,
-								Values:   []string{"bar", "value2"},
-							},
-						},
-					},
-				},
-			},
-		},
-		PodAffinity: &v1.PodAffinity{
-			RequiredDuringSchedulingIgnoredDuringExecution: []v1.PodAffinityTerm{
-				{
-					LabelSelector: &metav1.LabelSelector{
-						MatchExpressions: []metav1.LabelSelectorRequirement{
-							{
-								Key:      "security",
-								Operator: metav1.LabelSelectorOpDoesNotExist,
-								Values:   []string{"securityscan"},
-							},
-						},
-					},
-					TopologyKey: "topologyKey1",
-				},
-			},
-		},
-		PodAntiAffinity: &v1.PodAntiAffinity{
-			RequiredDuringSchedulingIgnoredDuringExecution: []v1.PodAffinityTerm{
-				{
-					LabelSelector: &metav1.LabelSelector{
-						MatchExpressions: []metav1.LabelSelectorRequirement{
-							{
-								Key:      "service",
-								Operator: metav1.LabelSelectorOpIn,
-								Values:   []string{"S1", "value2"},
-							},
-						},
-					},
-					TopologyKey: "topologyKey2",
-					Namespaces:  []string{"ns1"},
-				},
-			},
-		},
-	}
-
-	nodeAffinityAnnotation := map[string]string{
-		v1.AffinityAnnotationKey: `
-		{"nodeAffinity": {"preferredDuringSchedulingIgnoredDuringExecution": [
-			{
-				"weight": 2,
-				"preference": {"matchExpressions": [
-					{
-						"key": "foo",
-						"operator": "In", "values": ["bar"]
-					}
-				]}
-			}
-		]}}`,
-	}
-
-	testCases := []struct {
-		pod                *v1.Pod
-		expected           *v1.Affinity
-		annotationsEnabled bool
-	}{
-		{
-			// affinity is set in both PodSpec and annotations; take from PodSpec.
-			pod: &v1.Pod{
-				ObjectMeta: metav1.ObjectMeta{
-					Annotations: nodeAffinityAnnotation,
-				},
-				Spec: v1.PodSpec{
-					Affinity: baseAffinity,
-				},
-			},
-			expected:           baseAffinity,
-			annotationsEnabled: true,
-		},
-		{
-			// affinity is only set in annotation; take from annotation.
-			pod: &v1.Pod{
-				ObjectMeta: metav1.ObjectMeta{
-					Annotations: nodeAffinityAnnotation,
-				},
-			},
-			expected: &v1.Affinity{
-				NodeAffinity: &v1.NodeAffinity{
-					PreferredDuringSchedulingIgnoredDuringExecution: []v1.PreferredSchedulingTerm{
-						{
-							Weight: 2,
-							Preference: v1.NodeSelectorTerm{
-								MatchExpressions: []v1.NodeSelectorRequirement{
-									{
-										Key:      "foo",
-										Operator: v1.NodeSelectorOpIn,
-										Values:   []string{"bar"},
-									},
-								},
-							},
-						},
-					},
-				},
-			},
-			annotationsEnabled: true,
-		},
-	}
-
-	for i, tc := range testCases {
-		utilfeature.DefaultFeatureGate.Set(fmt.Sprintf("AffinityInAnnotations=%t", tc.annotationsEnabled))
-		affinity := ReconcileAffinity(tc.pod)
-		if !reflect.DeepEqual(affinity, tc.expected) {
-			t.Errorf("[%v] Did not get expected affinity:\n\n%v\n\n. got:\n\n %v", i, tc.expected, affinity)
-		}
-	}
-}

staging/src/k8s.io/api/core/v1/annotation_key_constants.go

@@ -72,11 +72,6 @@ const (
 	// This annotation can be attached to node.
 	ObjectTTLAnnotationKey string = "node.alpha.kubernetes.io/ttl"
 
-	// AffinityAnnotationKey represents the key of affinity data (json serialized)
-	// in the Annotations of a Pod.
-	// TODO: remove when alpha support for affinity is removed
-	AffinityAnnotationKey string = "scheduler.alpha.kubernetes.io/affinity"
-
 	// annotation key prefix used to identify non-convertible json paths.
 	NonConvertibleAnnotationPrefix = "non-convertible.kubernetes.io"