Split pod evictor and evictor filter

pkg/descheduler/descheduler.go

@@ -45,6 +45,7 @@ import (
 	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
 	"sigs.k8s.io/descheduler/pkg/descheduler/strategies"
 	"sigs.k8s.io/descheduler/pkg/descheduler/strategies/nodeutilization"
+	"sigs.k8s.io/descheduler/pkg/utils"
 )
 
 func Run(ctx context.Context, rs *options.DeschedulerServer) error {
@@ -87,7 +88,7 @@ func Run(ctx context.Context, rs *options.DeschedulerServer) error {
 	return runFn()
 }
 
-type strategyFunction func(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc)
+type strategyFunction func(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, evictorFilter *evictions.EvictorFilter, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc)
 
 func cachedClient(
 	realClient clientset.Interface,
@@ -283,18 +284,25 @@ func RunDeschedulerStrategies(ctx context.Context, rs *options.DeschedulerServer
 			deschedulerPolicy.MaxNoOfPodsToEvictPerNode,
 			deschedulerPolicy.MaxNoOfPodsToEvictPerNamespace,
 			nodes,
-			getPodsAssignedToNode,
-			evictLocalStoragePods,
-			evictSystemCriticalPods,
-			ignorePvcPods,
-			evictBarePods,
 			!rs.DisableMetrics,
 		)
 
 		for name, strategy := range deschedulerPolicy.Strategies {
 			if f, ok := strategyFuncs[name]; ok {
 				if strategy.Enabled {
-					f(ctx, rs.Client, strategy, nodes, podEvictor, getPodsAssignedToNode)
+					nodeFit := false
+					if name != "PodLifeTime" {
+						if strategy.Params != nil {
+							nodeFit = strategy.Params.NodeFit
+						}
+					}
+					thresholdPriority, err := utils.GetPriorityFromStrategyParams(ctx, rs.Client, strategy.Params)
+					if err != nil {
+						klog.ErrorS(err, "Failed to get threshold priority from strategy's params")
+						continue
+					}
+					evictorFilter := evictions.NewEvictorFilter(nodes, getPodsAssignedToNode, evictLocalStoragePods, evictSystemCriticalPods, ignorePvcPods, evictBarePods, evictions.WithNodeFit(nodeFit), evictions.WithPriorityThreshold(thresholdPriority))
+					f(ctx, rs.Client, strategy, nodes, podEvictor, evictorFilter, getPodsAssignedToNode)
 				}
 			} else {
 				klog.ErrorS(fmt.Errorf("unknown strategy name"), "skipping strategy", "strategy", name)

pkg/descheduler/evictions/evictions.go

@@ -51,17 +51,12 @@ type namespacePodEvictCount map[string]uint
 type PodEvictor struct {
 	client                     clientset.Interface
 	nodes                      []*v1.Node
-	nodeIndexer                podutil.GetPodsAssignedToNodeFunc
 	policyGroupVersion         string
 	dryRun                     bool
 	maxPodsToEvictPerNode      *uint
 	maxPodsToEvictPerNamespace *uint
 	nodepodCount               nodePodEvictedCount
 	namespacePodCount          namespacePodEvictCount
-	evictFailedBarePods        bool
-	evictLocalStoragePods      bool
-	evictSystemCriticalPods    bool
-	ignorePvcPods              bool
 	metricsEnabled             bool
 }
 
@@ -72,11 +67,6 @@ func NewPodEvictor(
 	maxPodsToEvictPerNode *uint,
 	maxPodsToEvictPerNamespace *uint,
 	nodes []*v1.Node,
-	nodeIndexer podutil.GetPodsAssignedToNodeFunc,
-	evictLocalStoragePods bool,
-	evictSystemCriticalPods bool,
-	ignorePvcPods bool,
-	evictFailedBarePods bool,
 	metricsEnabled bool,
 ) *PodEvictor {
 	var nodePodCount = make(nodePodEvictedCount)
@@ -89,17 +79,12 @@ func NewPodEvictor(
 	return &PodEvictor{
 		client:                     client,
 		nodes:                      nodes,
-		nodeIndexer:                nodeIndexer,
 		policyGroupVersion:         policyGroupVersion,
 		dryRun:                     dryRun,
 		maxPodsToEvictPerNode:      maxPodsToEvictPerNode,
 		maxPodsToEvictPerNamespace: maxPodsToEvictPerNamespace,
 		nodepodCount:               nodePodCount,
 		namespacePodCount:          namespacePodCount,
-		evictLocalStoragePods:      evictLocalStoragePods,
-		evictSystemCriticalPods:    evictSystemCriticalPods,
-		evictFailedBarePods:        evictFailedBarePods,
-		ignorePvcPods:              ignorePvcPods,
 		metricsEnabled:             metricsEnabled,
 	}
 }
@@ -230,21 +215,26 @@ func WithLabelSelector(labelSelector labels.Selector) func(opts *Options) {
 
 type constraint func(pod *v1.Pod) error
 
-type evictable struct {
+type EvictorFilter struct {
 	constraints []constraint
 }
 
-// Evictable provides an implementation of IsEvictable(IsEvictable(pod *v1.Pod) bool).
+func NewEvictorFilter(
-// The method accepts a list of options which allow to extend constraints
+	nodes []*v1.Node,
-// which decides when a pod is considered evictable.
+	nodeIndexer podutil.GetPodsAssignedToNodeFunc,
-func (pe *PodEvictor) Evictable(opts ...func(opts *Options)) *evictable {
+	evictLocalStoragePods bool,
+	evictSystemCriticalPods bool,
+	ignorePvcPods bool,
+	evictFailedBarePods bool,
+	opts ...func(opts *Options),
+) *EvictorFilter {
 	options := &Options{}
 	for _, opt := range opts {
 		opt(options)
 	}
 
-	ev := &evictable{}
+	ev := &EvictorFilter{}
-	if pe.evictFailedBarePods {
+	if evictFailedBarePods {
 		ev.constraints = append(ev.constraints, func(pod *v1.Pod) error {
 			ownerRefList := podutil.OwnerRef(pod)
 			// Enable evictFailedBarePods to evict bare pods in failed phase
@@ -263,7 +253,7 @@ func (pe *PodEvictor) Evictable(opts ...func(opts *Options)) *evictable {
 			return nil
 		})
 	}
-	if !pe.evictSystemCriticalPods {
+	if !evictSystemCriticalPods {
 		ev.constraints = append(ev.constraints, func(pod *v1.Pod) error {
 			// Moved from IsEvictable function to allow for disabling
 			if utils.IsCriticalPriorityPod(pod) {
@@ -281,7 +271,7 @@ func (pe *PodEvictor) Evictable(opts ...func(opts *Options)) *evictable {
 			})
 		}
 	}
-	if !pe.evictLocalStoragePods {
+	if !evictLocalStoragePods {
 		ev.constraints = append(ev.constraints, func(pod *v1.Pod) error {
 			if utils.IsPodWithLocalStorage(pod) {
 				return fmt.Errorf("pod has local storage and descheduler is not configured with evictLocalStoragePods")
@@ -289,7 +279,7 @@ func (pe *PodEvictor) Evictable(opts ...func(opts *Options)) *evictable {
 			return nil
 		})
 	}
-	if pe.ignorePvcPods {
+	if ignorePvcPods {
 		ev.constraints = append(ev.constraints, func(pod *v1.Pod) error {
 			if utils.IsPodWithPVC(pod) {
 				return fmt.Errorf("pod has a PVC and descheduler is configured to ignore PVC pods")
@@ -299,7 +289,7 @@ func (pe *PodEvictor) Evictable(opts ...func(opts *Options)) *evictable {
 	}
 	if options.nodeFit {
 		ev.constraints = append(ev.constraints, func(pod *v1.Pod) error {
-			if !nodeutil.PodFitsAnyOtherNode(pe.nodeIndexer, pod, pe.nodes) {
+			if !nodeutil.PodFitsAnyOtherNode(nodeIndexer, pod, nodes) {
 				return fmt.Errorf("pod does not fit on any other node because of nodeSelector(s), Taint(s), or nodes marked as unschedulable")
 			}
 			return nil
@@ -318,7 +308,7 @@ func (pe *PodEvictor) Evictable(opts ...func(opts *Options)) *evictable {
 }
 
 // IsEvictable decides when a pod is evictable
-func (ev *evictable) IsEvictable(pod *v1.Pod) bool {
+func (ef *EvictorFilter) Filter(pod *v1.Pod) bool {
 	checkErrs := []error{}
 
 	ownerRefList := podutil.OwnerRef(pod)
@@ -338,7 +328,7 @@ func (ev *evictable) IsEvictable(pod *v1.Pod) bool {
 		checkErrs = append(checkErrs, fmt.Errorf("pod is terminating"))
 	}
 
-	for _, c := range ev.constraints {
+	for _, c := range ef.constraints {
 		if err := c(pod); err != nil {
 			checkErrs = append(checkErrs, err)
 		}

pkg/descheduler/evictions/evictions_test.go

@@ -21,7 +21,6 @@ import (
 	"testing"
 
 	v1 "k8s.io/api/core/v1"
-	policyv1 "k8s.io/api/policy/v1"
 	"k8s.io/apimachinery/pkg/api/resource"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/client-go/informers"
@@ -639,19 +638,6 @@ func TestIsEvictable(t *testing.T) {
 			sharedInformerFactory.Start(ctx.Done())
 			sharedInformerFactory.WaitForCacheSync(ctx.Done())
 
-			podEvictor := &PodEvictor{
-				client:                     fakeClient,
-				nodes:                      nodes,
-				nodeIndexer:                getPodsAssignedToNode,
-				policyGroupVersion:         policyv1.SchemeGroupVersion.String(),
-				dryRun:                     false,
-				maxPodsToEvictPerNode:      nil,
-				maxPodsToEvictPerNamespace: nil,
-				evictLocalStoragePods:      test.evictLocalStoragePods,
-				evictSystemCriticalPods:    test.evictSystemCriticalPods,
-				evictFailedBarePods:        test.evictFailedBarePods,
-			}
-
 			var opts []func(opts *Options)
 			if test.priorityThreshold != nil {
 				opts = append(opts, WithPriorityThreshold(*test.priorityThreshold))
@@ -659,9 +645,18 @@ func TestIsEvictable(t *testing.T) {
 			if test.nodeFit {
 				opts = append(opts, WithNodeFit(true))
 			}
-			evictable := podEvictor.Evictable(opts...)
 
-			result := evictable.IsEvictable(test.pods[0])
+			evictorFilter := NewEvictorFilter(
+				nodes,
+				getPodsAssignedToNode,
+				test.evictLocalStoragePods,
+				test.evictSystemCriticalPods,
+				false,
+				test.evictFailedBarePods,
+				opts...,
+			)
+
+			result := evictorFilter.Filter(test.pods[0])
 			if result != test.result {
 				t.Errorf("IsEvictable should return for pod %s %t, but it returns %t", test.pods[0].Name, test.result, result)
 			}

pkg/descheduler/strategies/duplicates.go

@@ -66,17 +66,13 @@ func RemoveDuplicatePods(
 	strategy api.DeschedulerStrategy,
 	nodes []*v1.Node,
 	podEvictor *evictions.PodEvictor,
+	evictorFilter *evictions.EvictorFilter,
 	getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc,
 ) {
 	if err := validateRemoveDuplicatePodsParams(strategy.Params); err != nil {
 		klog.ErrorS(err, "Invalid RemoveDuplicatePods parameters")
 		return
 	}
-	thresholdPriority, err := utils.GetPriorityFromStrategyParams(ctx, client, strategy.Params)
-	if err != nil {
-		klog.ErrorS(err, "Failed to get threshold priority from strategy's params")
-		return
-	}
 
 	var includedNamespaces, excludedNamespaces sets.String
 	if strategy.Params != nil && strategy.Params.Namespaces != nil {
@@ -84,20 +80,13 @@ func RemoveDuplicatePods(
 		excludedNamespaces = sets.NewString(strategy.Params.Namespaces.Exclude...)
 	}
 
-	nodeFit := false
-	if strategy.Params != nil {
-		nodeFit = strategy.Params.NodeFit
-	}
-
-	evictable := podEvictor.Evictable(evictions.WithPriorityThreshold(thresholdPriority), evictions.WithNodeFit(nodeFit))
-
 	duplicatePods := make(map[podOwner]map[string][]*v1.Pod)
 	ownerKeyOccurence := make(map[podOwner]int32)
 	nodeCount := 0
 	nodeMap := make(map[string]*v1.Node)
 
 	podFilter, err := podutil.NewOptions().
-		WithFilter(evictable.IsEvictable).
+		WithFilter(evictorFilter.Filter).
 		WithNamespaces(includedNamespaces).
 		WithoutNamespaces(excludedNamespaces).
 		BuildFilterFunc()

pkg/descheduler/strategies/duplicates_test.go

@@ -319,16 +319,26 @@ func TestFindDuplicatePods(t *testing.T) {
 				false,
 				nil,
 				nil,
+				testCase.nodes,
+				false,
+			)
+
+			nodeFit := false
+			if testCase.strategy.Params != nil {
+				nodeFit = testCase.strategy.Params.NodeFit
+			}
+
+			evictorFilter := evictions.NewEvictorFilter(
 				testCase.nodes,
 				getPodsAssignedToNode,
 				false,
 				false,
 				false,
 				false,
-				false,
+				evictions.WithNodeFit(nodeFit),
 			)
 
-			RemoveDuplicatePods(ctx, fakeClient, testCase.strategy, testCase.nodes, podEvictor, getPodsAssignedToNode)
+			RemoveDuplicatePods(ctx, fakeClient, testCase.strategy, testCase.nodes, podEvictor, evictorFilter, getPodsAssignedToNode)
 			podsEvicted := podEvictor.TotalEvicted()
 			if podsEvicted != testCase.expectedEvictedPodCount {
 				t.Errorf("Test error for description: %s. Expected evicted pods count %v, got %v", testCase.description, testCase.expectedEvictedPodCount, podsEvicted)
@@ -748,15 +758,19 @@ func TestRemoveDuplicatesUniformly(t *testing.T) {
 				nil,
 				nil,
 				testCase.nodes,
-				getPodsAssignedToNode,
 				false,
+			)
+
+			evictorFilter := evictions.NewEvictorFilter(
+				testCase.nodes,
+				getPodsAssignedToNode,
 				false,
 				false,
 				false,
 				false,
 			)
 
-			RemoveDuplicatePods(ctx, fakeClient, testCase.strategy, testCase.nodes, podEvictor, getPodsAssignedToNode)
+			RemoveDuplicatePods(ctx, fakeClient, testCase.strategy, testCase.nodes, podEvictor, evictorFilter, getPodsAssignedToNode)
 			podsEvicted := podEvictor.TotalEvicted()
 			if podsEvicted != testCase.expectedEvictedPodCount {
 				t.Errorf("Test error for description: %s. Expected evicted pods count %v, got %v", testCase.description, testCase.expectedEvictedPodCount, podsEvicted)

pkg/descheduler/strategies/failedpods.go

@@ -33,6 +33,7 @@ func RemoveFailedPods(
 	strategy api.DeschedulerStrategy,
 	nodes []*v1.Node,
 	podEvictor *evictions.PodEvictor,
+	evictorFilter *evictions.EvictorFilter,
 	getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc,
 ) {
 	strategyParams, err := validateAndParseRemoveFailedPodsParams(ctx, client, strategy.Params)
@@ -41,19 +42,13 @@ func RemoveFailedPods(
 		return
 	}
 
-	evictable := podEvictor.Evictable(
-		evictions.WithPriorityThreshold(strategyParams.ThresholdPriority),
-		evictions.WithNodeFit(strategyParams.NodeFit),
-		evictions.WithLabelSelector(strategyParams.LabelSelector),
-	)
-
 	var labelSelector *metav1.LabelSelector
 	if strategy.Params != nil {
 		labelSelector = strategy.Params.LabelSelector
 	}
 
 	podFilter, err := podutil.NewOptions().
-		WithFilter(evictable.IsEvictable).
+		WithFilter(evictorFilter.Filter).
 		WithNamespaces(strategyParams.IncludedNamespaces).
 		WithoutNamespaces(strategyParams.ExcludedNamespaces).
 		WithLabelSelector(labelSelector).

pkg/descheduler/strategies/failedpods_test.go

@@ -46,7 +46,7 @@ func TestRemoveFailedPods(t *testing.T) {
 	}{
 		{
 			description:             "default empty strategy, 0 failures, 0 evictions",
-			strategy:                api.DeschedulerStrategy{},
+			strategy:                api.DeschedulerStrategy{Params: &api.StrategyParameters{NodeFit: false}},
 			nodes:                   []*v1.Node{test.BuildTestNode("node1", 2000, 3000, 10, nil)},
 			expectedEvictedPodCount: 0,
 			pods:                    []*v1.Pod{}, // no pods come back with field selector phase=Failed
@@ -274,16 +274,21 @@ func TestRemoveFailedPods(t *testing.T) {
 				false,
 				nil,
 				nil,
+				tc.nodes,
+				false,
+			)
+
+			evictorFilter := evictions.NewEvictorFilter(
 				tc.nodes,
 				getPodsAssignedToNode,
 				false,
 				false,
 				false,
 				false,
-				false,
+				evictions.WithNodeFit(tc.strategy.Params.NodeFit),
 			)
 
-			RemoveFailedPods(ctx, fakeClient, tc.strategy, tc.nodes, podEvictor, getPodsAssignedToNode)
+			RemoveFailedPods(ctx, fakeClient, tc.strategy, tc.nodes, podEvictor, evictorFilter, getPodsAssignedToNode)
 			actualEvictedPodCount := podEvictor.TotalEvicted()
 			if actualEvictedPodCount != tc.expectedEvictedPodCount {
 				t.Errorf("Test %#v failed, expected %v pod evictions, but got %v pod evictions\n", tc.description, tc.expectedEvictedPodCount, actualEvictedPodCount)

pkg/descheduler/strategies/node_affinity.go

@@ -29,7 +29,6 @@ import (
 	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
 	nodeutil "sigs.k8s.io/descheduler/pkg/descheduler/node"
 	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
-	"sigs.k8s.io/descheduler/pkg/utils"
 )
 
 func validatePodsViolatingNodeAffinityParams(params *api.StrategyParameters) error {
@@ -48,16 +47,11 @@ func validatePodsViolatingNodeAffinityParams(params *api.StrategyParameters) err
 }
 
 // RemovePodsViolatingNodeAffinity evicts pods on nodes which violate node affinity
-func RemovePodsViolatingNodeAffinity(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc) {
+func RemovePodsViolatingNodeAffinity(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, evictorFilter *evictions.EvictorFilter, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc) {
 	if err := validatePodsViolatingNodeAffinityParams(strategy.Params); err != nil {
 		klog.ErrorS(err, "Invalid RemovePodsViolatingNodeAffinity parameters")
 		return
 	}
-	thresholdPriority, err := utils.GetPriorityFromStrategyParams(ctx, client, strategy.Params)
-	if err != nil {
-		klog.ErrorS(err, "Failed to get threshold priority from strategy's params")
-		return
-	}
 
 	var includedNamespaces, excludedNamespaces sets.String
 	if strategy.Params.Namespaces != nil {
@@ -65,13 +59,6 @@ func RemovePodsViolatingNodeAffinity(ctx context.Context, client clientset.Inter
 		excludedNamespaces = sets.NewString(strategy.Params.Namespaces.Exclude...)
 	}
 
-	nodeFit := false
-	if strategy.Params != nil {
-		nodeFit = strategy.Params.NodeFit
-	}
-
-	evictable := podEvictor.Evictable(evictions.WithPriorityThreshold(thresholdPriority), evictions.WithNodeFit(nodeFit))
-
 	podFilter, err := podutil.NewOptions().
 		WithNamespaces(includedNamespaces).
 		WithoutNamespaces(excludedNamespaces).
@@ -94,7 +81,7 @@ func RemovePodsViolatingNodeAffinity(ctx context.Context, client clientset.Inter
 					node.Name,
 					getPodsAssignedToNode,
 					podutil.WrapFilterFuncs(podFilter, func(pod *v1.Pod) bool {
-						return evictable.IsEvictable(pod) &&
+						return evictorFilter.Filter(pod) &&
 							!nodeutil.PodFitsCurrentNode(getPodsAssignedToNode, pod, node) &&
 							nodeutil.PodFitsAnyNode(getPodsAssignedToNode, pod, nodes)
 					}),

pkg/descheduler/strategies/node_affinity_test.go

@@ -221,16 +221,26 @@ func TestRemovePodsViolatingNodeAffinity(t *testing.T) {
 				false,
 				tc.maxPodsToEvictPerNode,
 				tc.maxNoOfPodsToEvictPerNamespace,
+				tc.nodes,
+				false,
+			)
+
+			nodeFit := false
+			if tc.strategy.Params != nil {
+				nodeFit = tc.strategy.Params.NodeFit
+			}
+
+			evictorFilter := evictions.NewEvictorFilter(
 				tc.nodes,
 				getPodsAssignedToNode,
 				false,
 				false,
 				false,
 				false,
-				false,
+				evictions.WithNodeFit(nodeFit),
 			)
 
-			RemovePodsViolatingNodeAffinity(ctx, fakeClient, tc.strategy, tc.nodes, podEvictor, getPodsAssignedToNode)
+			RemovePodsViolatingNodeAffinity(ctx, fakeClient, tc.strategy, tc.nodes, podEvictor, evictorFilter, getPodsAssignedToNode)
 			actualEvictedPodCount := podEvictor.TotalEvicted()
 			if actualEvictedPodCount != tc.expectedEvictedPodCount {
 				t.Errorf("Test %#v failed, expected %v pod evictions, but got %v pod evictions\n", tc.description, tc.expectedEvictedPodCount, actualEvictedPodCount)

pkg/descheduler/strategies/node_taint.go

@@ -49,7 +49,7 @@ func validateRemovePodsViolatingNodeTaintsParams(params *api.StrategyParameters)
 }
 
 // RemovePodsViolatingNodeTaints evicts pods on the node which violate NoSchedule Taints on nodes
-func RemovePodsViolatingNodeTaints(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc) {
+func RemovePodsViolatingNodeTaints(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, evictorFilter *evictions.EvictorFilter, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc) {
 	if err := validateRemovePodsViolatingNodeTaintsParams(strategy.Params); err != nil {
 		klog.ErrorS(err, "Invalid RemovePodsViolatingNodeTaints parameters")
 		return
@@ -68,21 +68,8 @@ func RemovePodsViolatingNodeTaints(ctx context.Context, client clientset.Interfa
 		labelSelector = strategy.Params.LabelSelector
 	}
 
-	thresholdPriority, err := utils.GetPriorityFromStrategyParams(ctx, client, strategy.Params)
-	if err != nil {
-		klog.ErrorS(err, "Failed to get threshold priority from strategy's params")
-		return
-	}
-
-	nodeFit := false
-	if strategy.Params != nil {
-		nodeFit = strategy.Params.NodeFit
-	}
-
-	evictable := podEvictor.Evictable(evictions.WithPriorityThreshold(thresholdPriority), evictions.WithNodeFit(nodeFit))
-
 	podFilter, err := podutil.NewOptions().
-		WithFilter(evictable.IsEvictable).
+		WithFilter(evictorFilter.Filter).
 		WithNamespaces(includedNamespaces).
 		WithoutNamespaces(excludedNamespaces).
 		WithLabelSelector(labelSelector).

pkg/descheduler/strategies/node_taint_test.go

@@ -338,11 +338,6 @@ func TestDeletePodsViolatingNodeTaints(t *testing.T) {
 				tc.maxPodsToEvictPerNode,
 				tc.maxNoOfPodsToEvictPerNamespace,
 				tc.nodes,
-				getPodsAssignedToNode,
-				tc.evictLocalStoragePods,
-				tc.evictSystemCriticalPods,
-				false,
-				false,
 				false,
 			)
 
@@ -354,7 +349,17 @@ func TestDeletePodsViolatingNodeTaints(t *testing.T) {
 				},
 			}
 
-			RemovePodsViolatingNodeTaints(ctx, fakeClient, strategy, tc.nodes, podEvictor, getPodsAssignedToNode)
+			evictorFilter := evictions.NewEvictorFilter(
+				tc.nodes,
+				getPodsAssignedToNode,
+				tc.evictLocalStoragePods,
+				tc.evictSystemCriticalPods,
+				false,
+				false,
+				evictions.WithNodeFit(tc.nodeFit),
+			)
+
+			RemovePodsViolatingNodeTaints(ctx, fakeClient, strategy, tc.nodes, podEvictor, evictorFilter, getPodsAssignedToNode)
 			actualEvictedPodCount := podEvictor.TotalEvicted()
 			if actualEvictedPodCount != tc.expectedEvictedPodCount {
 				t.Errorf("Test %#v failed, Unexpected no of pods evicted: pods evicted: %d, expected: %d", tc.description, actualEvictedPodCount, tc.expectedEvictedPodCount)

pkg/descheduler/strategies/nodeutilization/highnodeutilization.go

@@ -29,28 +29,16 @@ import (
 	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
 	nodeutil "sigs.k8s.io/descheduler/pkg/descheduler/node"
 	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
-	"sigs.k8s.io/descheduler/pkg/utils"
 )
 
 // HighNodeUtilization evicts pods from under utilized nodes so that scheduler can schedule according to its strategy.
 // Note that CPU/Memory requests are used to calculate nodes' utilization and not the actual resource usage.
-func HighNodeUtilization(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc) {
+func HighNodeUtilization(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, evictorFilter *evictions.EvictorFilter, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc) {
 	if err := validateNodeUtilizationParams(strategy.Params); err != nil {
 		klog.ErrorS(err, "Invalid HighNodeUtilization parameters")
 		return
 	}
 
-	nodeFit := false
-	if strategy.Params != nil {
-		nodeFit = strategy.Params.NodeFit
-	}
-
-	thresholdPriority, err := utils.GetPriorityFromStrategyParams(ctx, client, strategy.Params)
-	if err != nil {
-		klog.ErrorS(err, "Failed to get threshold priority from strategy's params")
-		return
-	}
-
 	thresholds := strategy.Params.NodeResourceUtilizationThresholds.Thresholds
 	targetThresholds := strategy.Params.NodeResourceUtilizationThresholds.TargetThresholds
 	if err := validateHighUtilizationStrategyConfig(thresholds, targetThresholds); err != nil {
@@ -108,8 +96,6 @@ func HighNodeUtilization(ctx context.Context, client clientset.Interface, strate
 		return
 	}
 
-	evictable := podEvictor.Evictable(evictions.WithPriorityThreshold(thresholdPriority), evictions.WithNodeFit(nodeFit))
-
 	// stop if the total available usage has dropped to zero - no more pods can be scheduled
 	continueEvictionCond := func(nodeInfo NodeInfo, totalAvailableUsage map[v1.ResourceName]*resource.Quantity) bool {
 		for name := range totalAvailableUsage {
@@ -129,7 +115,7 @@ func HighNodeUtilization(ctx context.Context, client clientset.Interface, strate
 		sourceNodes,
 		highNodes,
 		podEvictor,
-		evictable.IsEvictable,
+		evictorFilter.Filter,
 		resourceNames,
 		"HighNodeUtilization",
 		continueEvictionCond)

pkg/descheduler/strategies/nodeutilization/highnodeutilization_test.go

@@ -507,11 +507,6 @@ func TestHighNodeUtilization(t *testing.T) {
 				nil,
 				nil,
 				testCase.nodes,
-				getPodsAssignedToNode,
-				false,
-				false,
-				false,
-				false,
 				false,
 			)
 
@@ -524,7 +519,18 @@ func TestHighNodeUtilization(t *testing.T) {
 					NodeFit: true,
 				},
 			}
-			HighNodeUtilization(ctx, fakeClient, strategy, testCase.nodes, podEvictor, getPodsAssignedToNode)
+
+			evictorFilter := evictions.NewEvictorFilter(
+				testCase.nodes,
+				getPodsAssignedToNode,
+				false,
+				false,
+				false,
+				false,
+				evictions.WithNodeFit(strategy.Params.NodeFit),
+			)
+
+			HighNodeUtilization(ctx, fakeClient, strategy, testCase.nodes, podEvictor, evictorFilter, getPodsAssignedToNode)
 
 			podsEvicted := podEvictor.TotalEvicted()
 			if testCase.expectedPodsEvicted != podsEvicted {
@@ -713,15 +719,19 @@ func TestHighNodeUtilizationWithTaints(t *testing.T) {
 				&item.evictionsExpected,
 				nil,
 				item.nodes,
-				getPodsAssignedToNode,
 				false,
+			)
+
+			evictorFilter := evictions.NewEvictorFilter(
+				item.nodes,
+				getPodsAssignedToNode,
 				false,
 				false,
 				false,
 				false,
 			)
 
-			HighNodeUtilization(ctx, fakeClient, strategy, item.nodes, podEvictor, getPodsAssignedToNode)
+			HighNodeUtilization(ctx, fakeClient, strategy, item.nodes, podEvictor, evictorFilter, getPodsAssignedToNode)
 
 			if item.evictionsExpected != podEvictor.TotalEvicted() {
 				t.Errorf("Expected %v evictions, got %v", item.evictionsExpected, podEvictor.TotalEvicted())

pkg/descheduler/strategies/nodeutilization/lownodeutilization.go

@@ -29,27 +29,17 @@ import (
 	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
 	nodeutil "sigs.k8s.io/descheduler/pkg/descheduler/node"
 	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
-	"sigs.k8s.io/descheduler/pkg/utils"
 )
 
 // LowNodeUtilization evicts pods from overutilized nodes to underutilized nodes. Note that CPU/Memory requests are used
 // to calculate nodes' utilization and not the actual resource usage.
-func LowNodeUtilization(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc) {
+func LowNodeUtilization(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, evictorFilter *evictions.EvictorFilter, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc) {
 	// TODO: May be create a struct for the strategy as well, so that we don't have to pass along the all the params?
 	if err := validateNodeUtilizationParams(strategy.Params); err != nil {
 		klog.ErrorS(err, "Invalid LowNodeUtilization parameters")
 		return
 	}
-	thresholdPriority, err := utils.GetPriorityFromStrategyParams(ctx, client, strategy.Params)
-	if err != nil {
-		klog.ErrorS(err, "Failed to get threshold priority from strategy's params")
-		return
-	}
 
-	nodeFit := false
-	if strategy.Params != nil {
-		nodeFit = strategy.Params.NodeFit
-	}
 	useDeviationThresholds := strategy.Params.NodeResourceUtilizationThresholds.UseDeviationThresholds
 	thresholds := strategy.Params.NodeResourceUtilizationThresholds.Thresholds
 	targetThresholds := strategy.Params.NodeResourceUtilizationThresholds.TargetThresholds
@@ -152,8 +142,6 @@ func LowNodeUtilization(ctx context.Context, client clientset.Interface, strateg
 		return
 	}
 
-	evictable := podEvictor.Evictable(evictions.WithPriorityThreshold(thresholdPriority), evictions.WithNodeFit(nodeFit))
-
 	// stop if node utilization drops below target threshold or any of required capacity (cpu, memory, pods) is moved
 	continueEvictionCond := func(nodeInfo NodeInfo, totalAvailableUsage map[v1.ResourceName]*resource.Quantity) bool {
 		if !isNodeAboveTargetUtilization(nodeInfo.NodeUsage, nodeInfo.thresholds.highResourceThreshold) {
@@ -176,7 +164,7 @@ func LowNodeUtilization(ctx context.Context, client clientset.Interface, strateg
 		sourceNodes,
 		lowNodes,
 		podEvictor,
-		evictable.IsEvictable,
+		evictorFilter.Filter,
 		resourceNames,
 		"LowNodeUtilization",
 		continueEvictionCond)

pkg/descheduler/strategies/nodeutilization/lownodeutilization_test.go

@@ -772,11 +772,6 @@ func TestLowNodeUtilization(t *testing.T) {
 				nil,
 				nil,
 				test.nodes,
-				getPodsAssignedToNode,
-				false,
-				false,
-				false,
-				false,
 				false,
 			)
 
@@ -791,7 +786,18 @@ func TestLowNodeUtilization(t *testing.T) {
 					NodeFit: true,
 				},
 			}
-			LowNodeUtilization(ctx, fakeClient, strategy, test.nodes, podEvictor, getPodsAssignedToNode)
+
+			evictorFilter := evictions.NewEvictorFilter(
+				test.nodes,
+				getPodsAssignedToNode,
+				false,
+				false,
+				false,
+				false,
+				evictions.WithNodeFit(strategy.Params.NodeFit),
+			)
+
+			LowNodeUtilization(ctx, fakeClient, strategy, test.nodes, podEvictor, evictorFilter, getPodsAssignedToNode)
 
 			podsEvicted := podEvictor.TotalEvicted()
 			if test.expectedPodsEvicted != podsEvicted {
@@ -1087,15 +1093,19 @@ func TestLowNodeUtilizationWithTaints(t *testing.T) {
 				&item.evictionsExpected,
 				nil,
 				item.nodes,
-				getPodsAssignedToNode,
 				false,
+			)
+
+			evictorFilter := evictions.NewEvictorFilter(
+				item.nodes,
+				getPodsAssignedToNode,
 				false,
 				false,
 				false,
 				false,
 			)
 
-			LowNodeUtilization(ctx, fakeClient, strategy, item.nodes, podEvictor, getPodsAssignedToNode)
+			LowNodeUtilization(ctx, fakeClient, strategy, item.nodes, podEvictor, evictorFilter, getPodsAssignedToNode)
 
 			if item.evictionsExpected != podEvictor.TotalEvicted() {
 				t.Errorf("Expected %v evictions, got %v", item.evictionsExpected, podEvictor.TotalEvicted())

pkg/descheduler/strategies/pod_antiaffinity.go

@@ -49,7 +49,7 @@ func validateRemovePodsViolatingInterPodAntiAffinityParams(params *api.StrategyP
 }
 
 // RemovePodsViolatingInterPodAntiAffinity evicts pods on the node which are having a pod affinity rules.
-func RemovePodsViolatingInterPodAntiAffinity(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc) {
+func RemovePodsViolatingInterPodAntiAffinity(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, evictorFilter *evictions.EvictorFilter, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc) {
 	if err := validateRemovePodsViolatingInterPodAntiAffinityParams(strategy.Params); err != nil {
 		klog.ErrorS(err, "Invalid RemovePodsViolatingInterPodAntiAffinity parameters")
 		return
@@ -65,19 +65,6 @@ func RemovePodsViolatingInterPodAntiAffinity(ctx context.Context, client clients
 		labelSelector = strategy.Params.LabelSelector
 	}
 
-	thresholdPriority, err := utils.GetPriorityFromStrategyParams(ctx, client, strategy.Params)
-	if err != nil {
-		klog.ErrorS(err, "Failed to get threshold priority from strategy's params")
-		return
-	}
-
-	nodeFit := false
-	if strategy.Params != nil {
-		nodeFit = strategy.Params.NodeFit
-	}
-
-	evictable := podEvictor.Evictable(evictions.WithPriorityThreshold(thresholdPriority), evictions.WithNodeFit(nodeFit))
-
 	podFilter, err := podutil.NewOptions().
 		WithNamespaces(includedNamespaces).
 		WithoutNamespaces(excludedNamespaces).
@@ -98,7 +85,7 @@ func RemovePodsViolatingInterPodAntiAffinity(ctx context.Context, client clients
 		podutil.SortPodsBasedOnPriorityLowToHigh(pods)
 		totalPods := len(pods)
 		for i := 0; i < totalPods; i++ {
-			if checkPodsWithAntiAffinityExist(pods[i], pods) && evictable.IsEvictable(pods[i]) {
+			if checkPodsWithAntiAffinityExist(pods[i], pods) && evictorFilter.Filter(pods[i]) {
 				success, err := podEvictor.EvictPod(ctx, pods[i], node, "InterPodAntiAffinity")
 				if err != nil {
 					klog.ErrorS(err, "Error evicting pod")

pkg/descheduler/strategies/pod_antiaffinity_test.go

@@ -218,11 +218,6 @@ func TestPodAntiAffinity(t *testing.T) {
 				test.maxPodsToEvictPerNode,
 				test.maxNoOfPodsToEvictPerNamespace,
 				test.nodes,
-				getPodsAssignedToNode,
-				false,
-				false,
-				false,
-				false,
 				false,
 			)
 			strategy := api.DeschedulerStrategy{
@@ -231,7 +226,17 @@ func TestPodAntiAffinity(t *testing.T) {
 				},
 			}
 
-			RemovePodsViolatingInterPodAntiAffinity(ctx, fakeClient, strategy, test.nodes, podEvictor, getPodsAssignedToNode)
+			evictorFilter := evictions.NewEvictorFilter(
+				test.nodes,
+				getPodsAssignedToNode,
+				false,
+				false,
+				false,
+				false,
+				evictions.WithNodeFit(test.nodeFit),
+			)
+
+			RemovePodsViolatingInterPodAntiAffinity(ctx, fakeClient, strategy, test.nodes, podEvictor, evictorFilter, getPodsAssignedToNode)
 			podsEvicted := podEvictor.TotalEvicted()
 			if podsEvicted != test.expectedEvictedPodCount {
 				t.Errorf("Unexpected no of pods evicted: pods evicted: %d, expected: %d", podsEvicted, test.expectedEvictedPodCount)

pkg/descheduler/strategies/pod_lifetime.go

@@ -29,7 +29,6 @@ import (
 	"sigs.k8s.io/descheduler/pkg/api"
 	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
 	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
-	"sigs.k8s.io/descheduler/pkg/utils"
 )
 
 func validatePodLifeTimeParams(params *api.StrategyParameters) error {
@@ -57,32 +56,24 @@ func validatePodLifeTimeParams(params *api.StrategyParameters) error {
 }
 
 // PodLifeTime evicts pods on nodes that were created more than strategy.Params.MaxPodLifeTimeSeconds seconds ago.
-func PodLifeTime(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc) {
+func PodLifeTime(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, evictorFilter *evictions.EvictorFilter, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc) {
 	if err := validatePodLifeTimeParams(strategy.Params); err != nil {
 		klog.ErrorS(err, "Invalid PodLifeTime parameters")
 		return
 	}
 
-	thresholdPriority, err := utils.GetPriorityFromStrategyParams(ctx, client, strategy.Params)
-	if err != nil {
-		klog.ErrorS(err, "Failed to get threshold priority from strategy's params")
-		return
-	}
-
 	var includedNamespaces, excludedNamespaces sets.String
 	if strategy.Params.Namespaces != nil {
 		includedNamespaces = sets.NewString(strategy.Params.Namespaces.Include...)
 		excludedNamespaces = sets.NewString(strategy.Params.Namespaces.Exclude...)
 	}
 
-	evictable := podEvictor.Evictable(evictions.WithPriorityThreshold(thresholdPriority))
+	filter := evictorFilter.Filter
-
-	filter := evictable.IsEvictable
 	if strategy.Params.PodLifeTime.PodStatusPhases != nil {
 		filter = func(pod *v1.Pod) bool {
 			for _, phase := range strategy.Params.PodLifeTime.PodStatusPhases {
 				if string(pod.Status.Phase) == phase {
-					return evictable.IsEvictable(pod)
+					return evictorFilter.Filter(pod)
 				}
 			}
 			return false

pkg/descheduler/strategies/pod_lifetime_test.go

@@ -339,16 +339,20 @@ func TestPodLifeTime(t *testing.T) {
 				false,
 				tc.maxPodsToEvictPerNode,
 				tc.maxPodsToEvictPerNamespace,
+				tc.nodes,
+				false,
+			)
+
+			evictorFilter := evictions.NewEvictorFilter(
 				tc.nodes,
 				getPodsAssignedToNode,
 				false,
 				false,
 				tc.ignorePvcPods,
 				false,
-				false,
 			)
 
-			PodLifeTime(ctx, fakeClient, tc.strategy, tc.nodes, podEvictor, getPodsAssignedToNode)
+			PodLifeTime(ctx, fakeClient, tc.strategy, tc.nodes, podEvictor, evictorFilter, getPodsAssignedToNode)
 			podsEvicted := podEvictor.TotalEvicted()
 			if podsEvicted != tc.expectedEvictedPodCount {
 				t.Errorf("Test error for description: %s. Expected evicted pods count %v, got %v", tc.description, tc.expectedEvictedPodCount, podsEvicted)

pkg/descheduler/strategies/toomanyrestarts.go

@@ -28,7 +28,6 @@ import (
 	"sigs.k8s.io/descheduler/pkg/api"
 	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
 	podutil "sigs.k8s.io/descheduler/pkg/descheduler/pod"
-	"sigs.k8s.io/descheduler/pkg/utils"
 )
 
 func validateRemovePodsHavingTooManyRestartsParams(params *api.StrategyParameters) error {
@@ -50,33 +49,20 @@ func validateRemovePodsHavingTooManyRestartsParams(params *api.StrategyParameter
 // RemovePodsHavingTooManyRestarts removes the pods that have too many restarts on node.
 // There are too many cases leading this issue: Volume mount failed, app error due to nodes' different settings.
 // As of now, this strategy won't evict daemonsets, mirror pods, critical pods and pods with local storages.
-func RemovePodsHavingTooManyRestarts(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc) {
+func RemovePodsHavingTooManyRestarts(ctx context.Context, client clientset.Interface, strategy api.DeschedulerStrategy, nodes []*v1.Node, podEvictor *evictions.PodEvictor, evictorFilter *evictions.EvictorFilter, getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc) {
 	if err := validateRemovePodsHavingTooManyRestartsParams(strategy.Params); err != nil {
 		klog.ErrorS(err, "Invalid RemovePodsHavingTooManyRestarts parameters")
 		return
 	}
 
-	thresholdPriority, err := utils.GetPriorityFromStrategyParams(ctx, client, strategy.Params)
-	if err != nil {
-		klog.ErrorS(err, "Failed to get threshold priority from strategy's params")
-		return
-	}
-
 	var includedNamespaces, excludedNamespaces sets.String
 	if strategy.Params.Namespaces != nil {
 		includedNamespaces = sets.NewString(strategy.Params.Namespaces.Include...)
 		excludedNamespaces = sets.NewString(strategy.Params.Namespaces.Exclude...)
 	}
 
-	nodeFit := false
-	if strategy.Params != nil {
-		nodeFit = strategy.Params.NodeFit
-	}
-
-	evictable := podEvictor.Evictable(evictions.WithPriorityThreshold(thresholdPriority), evictions.WithNodeFit(nodeFit))
-
 	podFilter, err := podutil.NewOptions().
-		WithFilter(evictable.IsEvictable).
+		WithFilter(evictorFilter.Filter).
 		WithNamespaces(includedNamespaces).
 		WithoutNamespaces(excludedNamespaces).
 		WithLabelSelector(strategy.Params.LabelSelector).

pkg/descheduler/strategies/toomanyrestarts_test.go

@@ -249,16 +249,21 @@ func TestRemovePodsHavingTooManyRestarts(t *testing.T) {
 				false,
 				tc.maxPodsToEvictPerNode,
 				tc.maxNoOfPodsToEvictPerNamespace,
+				tc.nodes,
+				false,
+			)
+
+			evictorFilter := evictions.NewEvictorFilter(
 				tc.nodes,
 				getPodsAssignedToNode,
 				false,
 				false,
 				false,
 				false,
-				false,
+				evictions.WithNodeFit(tc.strategy.Params.NodeFit),
 			)
 
-			RemovePodsHavingTooManyRestarts(ctx, fakeClient, tc.strategy, tc.nodes, podEvictor, getPodsAssignedToNode)
+			RemovePodsHavingTooManyRestarts(ctx, fakeClient, tc.strategy, tc.nodes, podEvictor, evictorFilter, getPodsAssignedToNode)
 			actualEvictedPodCount := podEvictor.TotalEvicted()
 			if actualEvictedPodCount != tc.expectedEvictedPodCount {
 				t.Errorf("Test %#v failed, expected %v pod evictions, but got %v pod evictions\n", tc.description, tc.expectedEvictedPodCount, actualEvictedPodCount)

pkg/descheduler/strategies/topologyspreadconstraint.go

@@ -46,12 +46,14 @@ type topology struct {
 	pods []*v1.Pod
 }
 
+// nolint: gocyclo
 func RemovePodsViolatingTopologySpreadConstraint(
 	ctx context.Context,
 	client clientset.Interface,
 	strategy api.DeschedulerStrategy,
 	nodes []*v1.Node,
 	podEvictor *evictions.PodEvictor,
+	evictorFilter *evictions.EvictorFilter,
 	getPodsAssignedToNode podutil.GetPodsAssignedToNodeFunc,
 ) {
 	strategyParams, err := validation.ValidateAndParseStrategyParams(ctx, client, strategy.Params)
@@ -60,11 +62,13 @@ func RemovePodsViolatingTopologySpreadConstraint(
 		return
 	}
 
-	evictable := podEvictor.Evictable(
+	isEvictable := evictorFilter.Filter
-		evictions.WithPriorityThreshold(strategyParams.ThresholdPriority),
+
-		evictions.WithNodeFit(strategyParams.NodeFit),
+	if strategyParams.LabelSelector != nil && !strategyParams.LabelSelector.Empty() {
-		evictions.WithLabelSelector(strategyParams.LabelSelector),
+		isEvictable = podutil.WrapFilterFuncs(isEvictable, func(pod *v1.Pod) bool {
-	)
+			return strategyParams.LabelSelector.Matches(labels.Set(pod.Labels))
+		})
+	}
 
 	nodeMap := make(map[string]*v1.Node, len(nodes))
 	for _, node := range nodes {
@@ -168,12 +172,12 @@ func RemovePodsViolatingTopologySpreadConstraint(
 				klog.V(2).InfoS("Skipping topology constraint because it is already balanced", "constraint", constraint)
 				continue
 			}
-			balanceDomains(client, getPodsAssignedToNode, podsForEviction, constraint, constraintTopologies, sumPods, evictable.IsEvictable, nodes)
+			balanceDomains(client, getPodsAssignedToNode, podsForEviction, constraint, constraintTopologies, sumPods, evictorFilter.Filter, nodes)
 		}
 	}
 
 	for pod := range podsForEviction {
-		if !evictable.IsEvictable(pod) {
+		if !isEvictable(pod) {
 			continue
 		}
 		if _, err := podEvictor.EvictPod(ctx, pod, nodeMap[pod.Spec.NodeName], "PodTopologySpread"); err != nil {
@@ -234,6 +238,7 @@ func balanceDomains(
 
 	idealAvg := sumPods / float64(len(constraintTopologies))
 	sortedDomains := sortDomains(constraintTopologies, isEvictable)
+
 	// i is the index for belowOrEqualAvg
 	// j is the index for aboveAvg
 	i := 0

pkg/descheduler/strategies/topologyspreadconstraint_test.go

@@ -970,15 +970,26 @@ func TestTopologySpreadConstraint(t *testing.T) {
 				false,
 				nil,
 				nil,
+				tc.nodes,
+				false,
+			)
+
+			nodeFit := false
+			if tc.strategy.Params != nil {
+				nodeFit = tc.strategy.Params.NodeFit
+			}
+
+			evictorFilter := evictions.NewEvictorFilter(
 				tc.nodes,
 				getPodsAssignedToNode,
 				false,
 				false,
 				false,
 				false,
-				false,
+				evictions.WithNodeFit(nodeFit),
 			)
-			RemovePodsViolatingTopologySpreadConstraint(ctx, fakeClient, tc.strategy, tc.nodes, podEvictor, getPodsAssignedToNode)
+
+			RemovePodsViolatingTopologySpreadConstraint(ctx, fakeClient, tc.strategy, tc.nodes, podEvictor, evictorFilter, getPodsAssignedToNode)
 			podsEvicted := podEvictor.TotalEvicted()
 			if podsEvicted != tc.expectedEvictedCount {
 				t.Errorf("Test error for description: %s. Expected evicted pods count %v, got %v", tc.name, tc.expectedEvictedCount, podsEvicted)

test/e2e/e2e_duplicatepods_test.go

@@ -145,11 +145,6 @@ func TestRemoveDuplicates(t *testing.T) {
 				nil,
 				nil,
 				nodes,
-				getPodsAssignedToNode,
-				true,
-				false,
-				false,
-				false,
 				false,
 			)
 
@@ -165,6 +160,14 @@ func TestRemoveDuplicates(t *testing.T) {
 				},
 				workerNodes,
 				podEvictor,
+				evictions.NewEvictorFilter(
+					nodes,
+					getPodsAssignedToNode,
+					true,
+					false,
+					false,
+					false,
+				),
 				getPodsAssignedToNode,
 			)
 

test/e2e/e2e_failedpods_test.go

@@ -15,6 +15,7 @@ import (
 	"k8s.io/utils/pointer"
 
 	deschedulerapi "sigs.k8s.io/descheduler/pkg/api"
+	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
 	"sigs.k8s.io/descheduler/pkg/descheduler/strategies"
 )
 
@@ -96,6 +97,14 @@ func TestFailedPods(t *testing.T) {
 				},
 				nodes,
 				podEvictor,
+				evictions.NewEvictorFilter(
+					nodes,
+					getPodsAssignedToNode,
+					true,
+					false,
+					false,
+					false,
+				),
 				getPodsAssignedToNode,
 			)
 			t.Logf("Finished RemoveFailedPods strategy for %s", name)

test/e2e/e2e_test.go

@@ -177,10 +177,7 @@ func runPodLifetimeStrategy(
 	}
 
 	maxPodLifeTimeSeconds := uint(1)
-	strategies.PodLifeTime(
+	strategy := deschedulerapi.DeschedulerStrategy{
-		ctx,
-		clientset,
-		deschedulerapi.DeschedulerStrategy{
 		Enabled: true,
 		Params: &deschedulerapi.StrategyParameters{
 			PodLifeTime:                &deschedulerapi.PodLifeTime{MaxPodLifeTimeSeconds: &maxPodLifeTimeSeconds},
@@ -189,7 +186,17 @@ func runPodLifetimeStrategy(
 			ThresholdPriorityClassName: priorityClass,
 			LabelSelector:              labelSelector,
 		},
-		},
+	}
+
+	thresholdPriority, err := utils.GetPriorityFromStrategyParams(ctx, clientset, strategy.Params)
+	if err != nil {
+		t.Fatalf("Failed to get threshold priority from strategy's params")
+	}
+
+	strategies.PodLifeTime(
+		ctx,
+		clientset,
+		strategy,
 		nodes,
 		evictions.NewPodEvictor(
 			clientset,
@@ -197,13 +204,17 @@ func runPodLifetimeStrategy(
 			false,
 			nil,
 			maxPodsToEvictPerNamespace,
+			nodes,
+			false,
+		),
+		evictions.NewEvictorFilter(
 			nodes,
 			getPodsAssignedToNode,
 			false,
 			evictCritical,
 			false,
 			false,
-			false,
+			evictions.WithPriorityThreshold(thresholdPriority),
 		),
 		getPodsAssignedToNode,
 	)
@@ -326,7 +337,16 @@ func TestLowNodeUtilization(t *testing.T) {
 	// Run LowNodeUtilization strategy
 	podEvictor := initPodEvictorOrFail(t, clientSet, getPodsAssignedToNode, nodes)
 
-	podFilter, err := podutil.NewOptions().WithFilter(podEvictor.Evictable().IsEvictable).BuildFilterFunc()
+	evictorFilter := evictions.NewEvictorFilter(
+		nodes,
+		getPodsAssignedToNode,
+		true,
+		false,
+		false,
+		false,
+	)
+
+	podFilter, err := podutil.NewOptions().WithFilter(evictorFilter.Filter).BuildFilterFunc()
 	if err != nil {
 		t.Errorf("Error initializing pod filter function, %v", err)
 	}
@@ -356,12 +376,13 @@ func TestLowNodeUtilization(t *testing.T) {
 		},
 		workerNodes,
 		podEvictor,
+		evictorFilter,
 		getPodsAssignedToNode,
 	)
 
 	waitForTerminatingPodsToDisappear(ctx, t, clientSet, rc.Namespace)
 
-	podFilter, err = podutil.NewOptions().WithFilter(podEvictor.Evictable().IsEvictable).BuildFilterFunc()
+	podFilter, err = podutil.NewOptions().WithFilter(evictorFilter.Filter).BuildFilterFunc()
 	if err != nil {
 		t.Errorf("Error initializing pod filter function, %v", err)
 	}
@@ -1410,11 +1431,6 @@ func initPodEvictorOrFail(t *testing.T, clientSet clientset.Interface, getPodsAs
 		nil,
 		nil,
 		nodes,
-		getPodsAssignedToNode,
-		true,
-		false,
-		false,
-		false,
 		false,
 	)
 }

test/e2e/e2e_toomanyrestarts_test.go

@@ -138,13 +138,9 @@ func TestTooManyRestarts(t *testing.T) {
 				nil,
 				nil,
 				nodes,
-				getPodsAssignedToNode,
-				true,
-				false,
-				false,
-				false,
 				false,
 			)
+
 			// Run RemovePodsHavingTooManyRestarts strategy
 			t.Log("Running RemovePodsHavingTooManyRestarts strategy")
 			strategies.RemovePodsHavingTooManyRestarts(
@@ -161,6 +157,14 @@ func TestTooManyRestarts(t *testing.T) {
 				},
 				workerNodes,
 				podEvictor,
+				evictions.NewEvictorFilter(
+					nodes,
+					getPodsAssignedToNode,
+					true,
+					false,
+					false,
+					false,
+				),
 				getPodsAssignedToNode,
 			)
 

test/e2e/e2e_topologyspreadconstraint_test.go

@@ -11,6 +11,7 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 
 	deschedulerapi "sigs.k8s.io/descheduler/pkg/api"
+	"sigs.k8s.io/descheduler/pkg/descheduler/evictions"
 	"sigs.k8s.io/descheduler/pkg/descheduler/strategies"
 )
 
@@ -92,6 +93,14 @@ func TestTopologySpreadConstraint(t *testing.T) {
 				},
 				nodes,
 				podEvictor,
+				evictions.NewEvictorFilter(
+					nodes,
+					getPodsAssignedToNode,
+					true,
+					false,
+					false,
+					false,
+				),
 				getPodsAssignedToNode,
 			)
 			t.Logf("Finished RemovePodsViolatingTopologySpreadConstraint strategy for %s", name)