Usermanager/Database/Seeders/PermissionsSeeder.php

<?php

    namespace Modules\Usermanager\Database\Seeders;

    use Illuminate\Database\Seeder;
    use Spatie\Permission\Models\Permission;
    use Spatie\Permission\Models\Role;

    class PermissionsSeeder extends Seeder
    {
        /**
         * Run the database seeds.
         *
         * @return void
         */
        public function run()
        {
            //app()[\Spatie\Permission\PermissionRegistrar::class]->forgetCachedPermissions();

            $data = $this->data();

            foreach ($data as $value) {
                $permission = Permission::create([
                    'name'                => $value['name'],
                    'guard_name'          => 'web', // or 'api
                    'permission_group_id' => $value['group']
                ]);

                $roles = Role::all();
                foreach ($roles as $role) {
                    if ($role->name == 'administrator') {
                        $role->givePermissionTo($permission);
                    } else {
                        if ($permission->name == 'user.read' || $permission->name == 'role.read' || $permission->name == 'permission.read') {
                            $role->givePermissionTo($permission);
                        }
                    }
                }

            }
        }

        public function data()
        {
            $data = [];
            // list of model permission
            $model = ['user', 'role', 'permission'];

            $i = 1;
            foreach ($model as $value) {
                foreach ($this->crudActions($value) as $action) {
                    $data[] = ['name' => $action, 'group' => $i];
                }
                $i++;
            }

            return $data;
        }

        public function crudActions($name)
        {
            $actions = [];
            // list of permission actions
            $crud = ['create', 'read', 'update', 'delete', 'authorize', 'report'];

            foreach ($crud as $value) {
                $actions[] = $name . '.' . $value;
            }

            return $actions;
        }
    }