Merge pull request #50582 from dixudx/support_fieldSelector_spec.schedulerName

Automatic merge from submit-queue (batch tested with PRs 50889, 51347, 50582, 51297, 51264)

support fieldSelector spec.schedulerName

**What this PR does / why we need it**:

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #49190

**Special notes for your reviewer**:
/assign @davidopp  @bsalamat
/cc @lavalamp

**Release note**:

```release-note
add fieldSelector spec.schedulerName
```

pkg/registry/core/pod/strategy.go

@@ -196,9 +196,10 @@ func PodToSelectableFields(pod *api.Pod) fields.Set {
 	// amount of allocations needed to create the fields.Set. If you add any
 	// field here or the number of object-meta related fields changes, this should
 	// be adjusted.
-	podSpecificFieldsSet := make(fields.Set, 6)
+	podSpecificFieldsSet := make(fields.Set, 7)
 	podSpecificFieldsSet["spec.nodeName"] = pod.Spec.NodeName
 	podSpecificFieldsSet["spec.restartPolicy"] = string(pod.Spec.RestartPolicy)
+	podSpecificFieldsSet["spec.schedulerName"] = string(pod.Spec.SchedulerName)
 	podSpecificFieldsSet["status.phase"] = string(pod.Status.Phase)
 	podSpecificFieldsSet["status.podIP"] = string(pod.Status.PodIP)
 	return generic.AddObjectMetaFieldsSet(podSpecificFieldsSet, &pod.ObjectMeta, true)

pkg/registry/core/pod/strategy_test.go

@@ -71,6 +71,20 @@ func TestMatchPod(t *testing.T) {
 			fieldSelector: fields.ParseSelectorOrDie("spec.restartPolicy=Never"),
 			expectMatch:   false,
 		},
+		{
+			in: &api.Pod{
+				Spec: api.PodSpec{SchedulerName: "scheduler1"},
+			},
+			fieldSelector: fields.ParseSelectorOrDie("spec.schedulerName=scheduler1"),
+			expectMatch:   true,
+		},
+		{
+			in: &api.Pod{
+				Spec: api.PodSpec{SchedulerName: "scheduler1"},
+			},
+			fieldSelector: fields.ParseSelectorOrDie("spec.schedulerName=scheduler2"),
+			expectMatch:   false,
+		},
 		{
 			in: &api.Pod{
 				Status: api.PodStatus{Phase: api.PodRunning},