$auth = Yii::$app->authManager;

            $userRule = new UserGroupRule;
            $auth->add($userRule);

            $userRole = $auth->createRole('user');
            $userRole->ruleName = $userRule->name;
            $auth->add($userRole);

            $managerRole = $auth->createRole('manager');
            $managerRole->ruleName = $userRule->name;
            $auth->add($managerRole);
            $auth->addChild($managerRole, $userRole);

            $adminRole = $auth->createRole('administrator');
            $adminRole->ruleName = $userRule->name;
            $auth->add($adminRole);
            $auth->addChild($adminRole, $managerRole);

            $auth->assign($adminRole, $admin->id);