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/algorithm/predicates/predicates_test.go

@@ -142,7 +142,7 @@ func newResourceInitPod(pod *v1.Pod, usage ...schedulercache.Resource) *v1.Pod {
 	return pod
 }
 
-func PredicateMetadata(p *v1.Pod, nodeInfo map[string]*schedulercache.NodeInfo) interface{} {
+func PredicateMetadata(p *v1.Pod, nodeInfo map[string]*schedulercache.NodeInfo) algorithm.PredicateMetadata {
 	pm := PredicateMetadataFactory{schedulertesting.FakePodLister{p}}
 	return pm.GetMetadata(p, nodeInfo)
 }
@@ -3015,7 +3015,7 @@ func TestInterPodAffinityWithMultipleNodes(t *testing.T) {
 			nodeInfo.SetNode(&node)
 			nodeInfoMap := map[string]*schedulercache.NodeInfo{node.Name: nodeInfo}
 
-			var meta interface{} = nil
+			var meta algorithm.PredicateMetadata = nil
 
 			if !test.nometa {
 				meta = PredicateMetadata(test.pod, nodeInfoMap)