make sure that at least one admin user is added to DB in release mode

database/testdata.go

@@ -309,10 +309,18 @@ var WidgetE = Widget{
 func DBAddAdminUser(db *gorm.DB) error {
 	db.AutoMigrate(&User{})
 
-	//create a copy of global test data
-	user0 := User0
-	// add admin user to DB
-	err := db.Create(&user0).Error
+	// Check if admin user exists in DB
+	var users []User
+	err := db.Where("Role = ?", "Admin").Find(&users).Error
+
+	if len(users) == 0 {
+		fmt.Println("No admin user found in DB, adding default admin user.")
+		//create a copy of global test data
+		user0 := User0
+		// add admin user to DB
+		err = db.Create(&user0).Error
+	}
+
 	return err
 }
 

start.go

@@ -133,6 +133,7 @@ func main() {
 		return
 	}
 	if mode == "test" {
+		// test mode: drop all tables and add test data to DB
 		database.DropTables(db)
 		log.Println("Database tables dropped, adding test data to DB")
 		err = database.DBAddTestData(db, basePath, r)
@@ -142,6 +143,14 @@ func main() {
 			panic(err)
 		}
 		log.Println("Database initialized with test data")
+	} else {
+		// release mode: make sure that at least one admin user exists in DB
+		err = database.DBAddAdminUser(db)
+		if err != nil {
+			fmt.Println(err.Error())
+			fmt.Println("error: adding admin user failed, aborting")
+			panic(err)
+		}
 	}
 
 	amqpurl, _ := configuration.GolbalConfig.String("amqp.url")