add resource cleanup feature gate for registration (#290)

Signed-off-by: ZhiweiYin <[email protected]>

cluster/v1/types.go

@@ -262,15 +262,19 @@ const (
 	// ManagedClusterConditionDeleting is a condition which means the cluster is in deletion process.
 	ManagedClusterConditionDeleting string = "Deleting"
 
-	// ConditionDeletingReasonResourceRemaining is a reason for the condition ManagedClusterIsDeleting, which means
+	// ConditionDeletingReasonResourceRemaining is a reason for the condition ManagedClusterConditionDeleting, which means
 	// there are resources are remaining during deletion process.
 	ConditionDeletingReasonResourceRemaining string = "ResourceRemaining"
 
-	// ConditionDeletingReasonResourceError is a reason for the condition ManagedClusterIsDeleting, which means
+	// ConditionDeletingReasonNoResource is a reason for the condition ManagedClusterConditionDeleting, which means
+	// there is no resources left in the cluster ns during the deletion process.
+	ConditionDeletingReasonNoResource string = "NoResource"
+
+	// ConditionDeletingReasonResourceError is a reason for the condition ManagedClusterConditionDeleting, which means
 	// meet errors during the deletion process.
 	ConditionDeletingReasonResourceError string = "DeletingError"
 
-	// CleanupPriorityAnnotationKey is a annotation for the resources deployed in cluster ns which are waiting to
+	// CleanupPriorityAnnotationKey is an annotation for the resources deployed in cluster ns which are waiting to
 	// be cleaned up after cluster is deleted.
 	// The value is an integer value [0,100], The larger the value, the later the order of deletion.
 	// The deletion order is :

feature/feature.go

@@ -67,6 +67,9 @@ const (
 	// RawFeedbackJsonString will make the work agent to return the feedback result as a json string if the result
 	// is not a scalar value.
 	RawFeedbackJsonString featuregate.Feature = "RawFeedbackJsonString"
+
+	// ResourceCleanup will start gc controller to clean up resources in cluster ns after cluster is deleted.
+	ResourceCleanup featuregate.Feature = "ResourceCleanup"
 )
 
 // DefaultSpokeRegistrationFeatureGates consists of all known ocm-registration
@@ -85,6 +88,7 @@ var DefaultHubRegistrationFeatureGates = map[featuregate.Feature]featuregate.Fea
 	DefaultClusterSet:          {Default: false, PreRelease: featuregate.Alpha},
 	V1beta1CSRAPICompatibility: {Default: false, PreRelease: featuregate.Alpha},
 	ManagedClusterAutoApproval: {Default: false, PreRelease: featuregate.Alpha},
+	ResourceCleanup:            {Default: false, PreRelease: featuregate.Alpha},
 }
 
 var DefaultHubAddonManagerFeatureGates = map[featuregate.Feature]featuregate.FeatureSpec{