Define a constant for the finaliser key (#1209)

Signed-off-by: Mikalai Radchuk <mradchuk@redhat.com>

Author: m1kola

cmd/manager/main.go

@@ -200,12 +200,10 @@ func main() {
 	}
 
 	clusterExtensionFinalizers := crfinalizer.NewFinalizers()
-	domain := ocv1alpha1.GroupVersion.Group
-	cleanupUnpackCacheKey := fmt.Sprintf("%s/cleanup-unpack-cache", domain)
-	if err := clusterExtensionFinalizers.Register(cleanupUnpackCacheKey, finalizerFunc(func(ctx context.Context, obj client.Object) (crfinalizer.Result, error) {
+	if err := clusterExtensionFinalizers.Register(controllers.ClusterExtensionCleanupUnpackCacheFinalizer, finalizerFunc(func(ctx context.Context, obj client.Object) (crfinalizer.Result, error) {
 		return crfinalizer.Result{}, os.RemoveAll(filepath.Join(unpacker.BaseCachePath, obj.GetName()))
 	})); err != nil {
-		setupLog.Error(err, "unable to register finalizer", "finalizerKey", cleanupUnpackCacheKey)
+		setupLog.Error(err, "unable to register finalizer", "finalizerKey", controllers.ClusterExtensionCleanupUnpackCacheFinalizer)
 		os.Exit(1)
 	}
 

internal/controllers/clusterextension_controller.go

@@ -57,6 +57,10 @@ import (
 	rukpaksource "github.com/operator-framework/operator-controller/internal/rukpak/source"
 )
 
+const (
+	ClusterExtensionCleanupUnpackCacheFinalizer = "olm.operatorframework.io/cleanup-unpack-cache"
+)
+
 // ClusterExtensionReconciler reconciles a ClusterExtension object
 type ClusterExtensionReconciler struct {
 	client.Client