energylink/public/app/plugins/datasource/opentsdb/partials/config.html

<datasource-http-settings current="ctrl.current"></datasource-http-settings>

<br>
<h5>Opentsdb settings</h5>
<div class="tight-form last">
  <ul class="tight-form-list">
    <li class="tight-form-item" style="width: 80px">
      Version
    </li>
    <li class="tight-form-item">
      <select class="input-medium tight-form-input" ng-model="ctrl.current.jsonData.tsdbVersion" ng-options="v.value as v.name for v in ctrl.tsdbVersions"></select>
    </li>
  </ul>
  <div class="clearfix"></div>
</div>