traefik/webui/src/app/sections/providers/providers.html

<div>
  <tabset>
    <tab data-ng-repeat="(providerId, provider) in providersCtrl.providers" heading="{{providerId}}">

      <div class="row tabset-row__providers">
        <div class="col-md-6">
          <div data-ng-repeat="(frontendId, frontend) in provider.frontends">
            <frontend-monitor data-provider-id="providerId" data-frontend-id="frontendId" data-frontend="frontend"></frontend-monitor>
          </div>
        </div>
        <div class="col-md-6">
          <div data-ng-repeat="(backendId, backend) in provider.backends">
            <backend-monitor data-provider-id="providerId" data-backend-id="backendId" data-backend="backend"></backend-monitor>
          </div>
        </div>
      </div>

    </tab>
  </tabset>
</div>