remove 1.27 deterministic support for resource claims

Author: kannon92

pkg/controller/resourceclaim/controller.go

@@ -678,23 +678,20 @@ func (ec *Controller) findPodResourceClaim(pod *v1.Pod, podClaim v1.PodResourceC
 	if err != nil {
 		return nil, err
 	}
-	deterministicName := pod.Name + "-" + podClaim.Name // Kubernetes <= 1.27 behavior.
 	for _, claimObj := range claims {
 		claim, ok := claimObj.(*resourceapi.ResourceClaim)
 		if !ok {
 			return nil, fmt.Errorf("unexpected object of type %T returned by claim cache", claimObj)
 		}
 		podClaimName, ok := claim.Annotations[podResourceClaimAnnotation]
-		if ok && podClaimName != podClaim.Name {
+		// No annotation? Then it cannot be an automatically generated claim
+		// and we need to ignore it.
+		if !ok {
 			continue
 		}
 
-		// No annotation? It might a ResourceClaim created for
-		// the pod with a previous Kubernetes release where the
-		// ResourceClaim name was deterministic, in which case
-		// we have to use it and update the new pod status
-		// field accordingly.
-		if !ok && claim.Name != deterministicName {
+		// Not the claim for this particular pod claim?
+		if podClaimName != podClaim.Name {
 			continue
 		}
 

pkg/controller/resourceclaim/controller_test.go

@@ -190,19 +190,6 @@ func TestSyncHandler(t *testing.T) {
 			},
 			expectedMetrics: expectedMetrics{0, 0},
 		},
-		{
-			name:           "find-existing-claim-by-name",
-			pods:           []*v1.Pod{testPodWithResource},
-			key:            podKey(testPodWithResource),
-			claims:         []*resourceapi.ResourceClaim{testClaim},
-			expectedClaims: []resourceapi.ResourceClaim{*testClaim},
-			expectedStatuses: map[string][]v1.PodResourceClaimStatus{
-				testPodWithResource.Name: {
-					{Name: testPodWithResource.Spec.ResourceClaims[0].Name, ResourceClaimName: &testClaim.Name},
-				},
-			},
-			expectedMetrics: expectedMetrics{0, 0},
-		},
 		{
 			name:          "find-created-claim-in-cache",
 			pods:          []*v1.Pod{testPodWithResource},