feat: support eviction of failed bare pods

This patch adds the policy(evictFailedBarePods) to allow the failed
pods without ownerReferences to be evicted. For backward compatibility,
disable the policy by default. Address #644.

test/e2e/e2e_duplicatepods_test.go

@@ -150,6 +150,7 @@ func TestRemoveDuplicates(t *testing.T) {
 				true,
 				false,
 				false,
+				false,
 			)
 
 			t.Log("Running DeschedulerStrategy strategy")

test/e2e/e2e_test.go

@@ -179,6 +179,7 @@ func runPodLifetimeStrategy(
 			false,
 			evictCritical,
 			false,
+			false,
 		),
 		getPodsAssignedToNode,
 	)
@@ -1316,5 +1317,6 @@ func initPodEvictorOrFail(t *testing.T, clientSet clientset.Interface, nodes []*
 		true,
 		false,
 		false,
+		false,
 	)
 }

test/e2e/e2e_toomanyrestarts_test.go

@@ -140,6 +140,7 @@ func TestTooManyRestarts(t *testing.T) {
 				true,
 				false,
 				false,
+				false,
 			)
 			// Run RemovePodsHavingTooManyRestarts strategy
 			t.Log("Running RemovePodsHavingTooManyRestarts strategy")