app/views/shared/_header.html.erb
<ul class="nav navbar-nav navbar-avatar pull-right">
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">
<span class="hidden-xs-only"><%= current_user %></span>
<b class="caret hidden-xs-only"></b>
</a>
<ul class="dropdown-menu pull-right">
<li><%= link_to "Dados pessoais", user_path(current_user) %></li>
<li><%= link_to "Sair", destroy_user_session_path, method: :delete %></li>
</ul>
</li>
</ul>
<a class="navbar-brand" href="#">Admin</a>
<button type="button" class="btn btn-link pull-left nav-toggle visible-xs" data-toggle="class:slide-nav slide-nav-left" data-target="body">
<i class="fa fa-bars fa-lg text-default"></i>
</button>