use k8s sets

Signed-off-by: Omer Aplatony <[email protected]>

Author: omerap12

vertical-pod-autoscaler/pkg/updater/logic/updater.go

@@ -26,6 +26,7 @@ import (
 	apiv1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/fields"
 	"k8s.io/apimachinery/pkg/labels"
+	"k8s.io/apimachinery/pkg/util/sets"
 	kube_client "k8s.io/client-go/kubernetes"
 	"k8s.io/client-go/kubernetes/fake"
 	corescheme "k8s.io/client-go/kubernetes/scheme"
@@ -167,7 +168,7 @@ func (u *updater) RunOnce(ctx context.Context) {
 	inPlaceFeatureEnable := features.Enabled(features.InPlaceOrRecreate)
 
 	var podsList []*apiv1.Pod
-	seenPods := make(map[string]struct{})
+	seenPods := sets.New[string]()
 
 	for _, vpa := range vpaList {
 		if slices.Contains(u.ignoredNamespaces, vpa.Namespace) {
@@ -196,9 +197,8 @@ func (u *updater) RunOnce(ctx context.Context) {
 
 		// handle the case of overlapping VPA selectors
 		for _, pod := range podsWithSelector {
-			uid := string(pod.UID)
-			if _, seen := seenPods[uid]; !seen {
-				seenPods[uid] = struct{}{}
+			if !seenPods.Has(pod.Name) {
+				seenPods.Insert(pod.Name)
 				podsList = append(podsList, pod)
 			}
 		}