delete non-existent nodes with Ready condition Unknown

pkg/controller/cloud/node_lifecycle_controller.go

@@ -146,18 +146,6 @@ func (c *CloudNodeLifecycleController) MonitorNodes() {
 			continue
 		}
 
-		// node condition is unknown so we should not try to update it
-		if status == v1.ConditionUnknown {
-			continue
-		}
-
-		// status for NodeReady should be false at this point, this check
-		// is here as a fail safe in the case a new node condition is added
-		// without consideration of this controller
-		if status != v1.ConditionFalse {
-			continue
-		}
-
 		// we need to check this first to get taint working in similar in all cloudproviders
 		// current problem is that shutdown nodes are not working in similar way ie. all cloudproviders
 		// does not delete node from kubernetes cluster when instance it is shutdown see issue #46442

pkg/controller/cloud/node_lifecycle_controller_test.go

@@ -24,6 +24,7 @@ import (
 
 	"k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/client-go/informers"
 	coreinformers "k8s.io/client-go/informers/core/v1"
 	"k8s.io/client-go/kubernetes/fake"
@@ -164,7 +165,9 @@ func Test_NodesDeleted(t *testing.T) {
 			fakeCloud: &fakecloud.FakeCloud{
 				ExistsByProviderID: false,
 			},
-			deleteNodes: []*v1.Node{},
+			deleteNodes: []*v1.Node{
+				testutil.NewNode("node0"),
+			},
 		},
 		{
 			name: "node ready condition is unknown, node exists",
@@ -191,7 +194,11 @@ func Test_NodesDeleted(t *testing.T) {
 				Clientset:    fake.NewSimpleClientset(),
 			},
 			fakeCloud: &fakecloud.FakeCloud{
+				NodeShutdown:       false,
 				ExistsByProviderID: true,
+				ExtID: map[types.NodeName]string{
+					types.NodeName("node0"): "foo://12345",
+				},
 			},
 			deleteNodes: []*v1.Node{},
 		},