diff --git a/controllers/database/controllers/database_controller.go b/controllers/database/controllers/database_controller.go
index 235fdb5371..1b268a1661 100644
--- a/controllers/database/controllers/database_controller.go
+++ b/controllers/database/controllers/database_controller.go
@@ -22,6 +22,7 @@ import (
 	databasev1 "github.com/labring/laf/controllers/database/api/v1"
 	"github.com/labring/laf/controllers/database/dbm"
 	"k8s.io/apimachinery/pkg/runtime"
+	"laf/pkg/util"
 	"net/url"
 	ctrl "sigs.k8s.io/controller-runtime"
 	"sigs.k8s.io/controller-runtime/pkg/client"
@@ -70,7 +71,7 @@ func (r *DatabaseReconciler) Reconcile(ctx context.Context, req ctrl.Request) (c
 func (r *DatabaseReconciler) apply(ctx context.Context, database *databasev1.Database) (ctrl.Result, error) {
 	// add the finalizer
 	if database.ObjectMeta.DeletionTimestamp.IsZero() {
-		if !containsString(database.ObjectMeta.Finalizers, "database.laf.dev") {
+		if !util.ContainsString(database.ObjectMeta.Finalizers, "database.laf.dev") {
 			database.ObjectMeta.Finalizers = append(database.ObjectMeta.Finalizers, "database.laf.dev")
 			if err := r.Update(ctx, database); err != nil {
 				return ctrl.Result{}, err
@@ -249,13 +250,3 @@ func (r *DatabaseReconciler) SetupWithManager(mgr ctrl.Manager) error {
 		For(&databasev1.Database{}).
 		Complete(r)
 }
-
-// TODO: move it to pkg/util
-func containsString(finalizers []string, s string) bool {
-	for _, f := range finalizers {
-		if f == s {
-			return true
-		}
-	}
-	return false
-}
diff --git a/go.work b/go.work
new file mode 100644
index 0000000000..d2489fbf30
--- /dev/null
+++ b/go.work
@@ -0,0 +1,9 @@
+go 1.18
+
+use (
+	.
+	./controllers/application
+	./controllers/database
+	./controllers/oss
+	./controllers/gateway
+)
\ No newline at end of file
diff --git a/go.work.sum b/go.work.sum
new file mode 100644
index 0000000000..901cdf599d
--- /dev/null
+++ b/go.work.sum
@@ -0,0 +1 @@
+github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=
diff --git a/pkg/util/string.go b/pkg/util/string.go
new file mode 100644
index 0000000000..1672691c23
--- /dev/null
+++ b/pkg/util/string.go
@@ -0,0 +1,10 @@
+package util
+
+func ContainsString(finalizers []string, s string) bool {
+	for _, f := range finalizers {
+		if f == s {
+			return true
+		}
+	}
+	return false
+}