app/views/devise/registrations/new.html.erb
<h2><%= I18n.t 'user.signup' %></h2>
<%= form_for(resource, as: resource_name, url: registration_path(resource_name)) do |f| %>
<%= devise_error_messages! %>
<div class="field">
<%= f.label :username %><br />
<%= f.text_field :username, autofocus: true, class: 'form-control' %>
</div><br/>
<div class="field">
<%= f.label :email %><br />
<%= f.email_field :email, autofocus: true, class: 'form-control' %>
</div><br/>
<div class="field">
<%= f.label :password %>
<% if @minimum_password_length %>
<em>(<%= @minimum_password_length %> characters minimum)</em>
<% end %><br />
<%= f.password_field :password, autocomplete: "off", class: 'form-control' %>
</div><br/>
<div class="field">
<%= f.label :password_confirmation %><br />
<%= f.password_field :password_confirmation, autocomplete: "off", class: 'form-control' %>
</div>
<%= f.hidden_field :role_id, value: 1 %>
<hr/>
<div class="actions">
<%= f.submit class:"btn btn-primary" %>
</div>
<% end %>
<%= render "devise/shared/links" %>