ambari/ambari-web/app/templates/main/host/details.hbs

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<div id="host-details">
  <a href="javascript:void(null)" data-toggle="modal" {{action backToHostsList}}><i class="icon-arrow-left"></i>&nbsp;Back to Hosts</a>
  &nbsp;/&nbsp;
  <span {{bindAttr class=":host-title view.content.healthClass"}}>{{unbound view.content.publicHostName}}</span>
  {{#if controller.isAdmin}}
  <div class="host-maintenance">
    <div class="host-maintenance-btn btn-group display-inline-block">
      <a class="btn dropdown-toggle" data-toggle="dropdown" href="#">
        {{t services.service.actions.maintenance}}
        <span class="caret"></span>
      </a>
      <ul class="dropdown-menu">
      <!-- dropdown menu links -->
        {{#each option in view.maintenance}}
        <li>
        <a {{action validateDeletion target="controller"}} href="#">{{option.label}}</a>
        </li>
        {{/each}}
      </ul>
    </div>
  </div>
  {{/if}}
  <div class="content">
    {{view App.MainHostMenuView}}
    {{outlet}}
  </div>
</div>