pigallery2/frontend/app/admin/admin.component.html

<app-frame>
  <div body class="container">

    <div class="panel panel-default" *ngIf="notificationService.notifications.length>0">
      <div class="panel-heading">
        <h3 class="panel-title">Server notifications</h3>
      </div>
      <div class="panel-body">
        <ng-container *ngFor="let notification of notificationService.notifications">

          <div class="alert alert-{{NotificationType[notification.type]}}" role="alert">
            {{notification.message}}
            <br *ngIf="notification.details"/>
            {{notification.details | json}}
          </div>
        </ng-container>
      </div>

      <div class="panel-footer">
        To dismiss these notifications, restart the server.
      </div>
    </div>

    <settings-usermanager *ngIf="userManagementEnable"></settings-usermanager>
    <settings-database></settings-database>
    <settings-map></settings-map>
  </div>
</app-frame>