Merge pull request #50949 from bsalamat/preemption_eviction

Automatic merge from submit-queue

Add pod preemption to the scheduler

**What this PR does / why we need it**:
This is the last of a series of PRs to add priority-based preemption to the scheduler. This PR connects the preemption logic to the scheduler workflow.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #48646

**Special notes for your reviewer**:
This PR includes other PRs which are under review (#50805, #50405, #50190). All the new code is located in 43627afdf9.

**Release note**:

```release-note
Add priority-based preemption to the scheduler.
```

ref/ #47604

/assign @davidopp 

@kubernetes/sig-scheduling-pr-reviews

plugin/pkg/scheduler/algorithmprovider/defaults/defaults.go

@@ -52,7 +52,7 @@ const (
 func init() {
 	// Register functions that extract metadata used by predicates and priorities computations.
 	factory.RegisterPredicateMetadataProducerFactory(
-		func(args factory.PluginFactoryArgs) algorithm.MetadataProducer {
+		func(args factory.PluginFactoryArgs) algorithm.PredicateMetadataProducer {
 			return predicates.NewPredicateMetadataFactory(args.PodLister)
 		})
 	factory.RegisterPriorityMetadataProducerFactory(
@@ -155,7 +155,7 @@ func defaultPredicates() sets.String {
 		),
 		// Fit is determined by inter-pod affinity.
 		factory.RegisterFitPredicateFactory(
-			"MatchInterPodAffinity",
+			predicates.MatchInterPodAffinity,
 			func(args factory.PluginFactoryArgs) algorithm.FitPredicate {
 				return predicates.NewPodAffinityPredicate(args.NodeInfo, args.PodLister)
 			},