app/views/cdx/admin/shared/_main_sidebar.html.erb
<aside class="main-sidebar">
<section class="sidebar">
<div class="user-panel">
<div class="pull-left image">
<%= image_tag current_admin_user.avatar_url, class: 'img-circle' %>
</div>
<div class="pull-left info">
<p><%= current_admin_user.full_name %></p>
<a href="#"><%= fa_icon :circle, class: %w(text-success) %> <%= t('admin.online')%></a>
</div>
</div>
<ul class="sidebar-menu tree" data-widget="tree">
<%= yield :main_sidebar_menu %>
</ul>
</section>
</aside>