cookbooks/fb_smokeping/templates/target_hash.erb

<% @indent = 1 if not @indent %>
<% ind = '+' * @indent %>
<% @config.each do |key, val| %>
<%   if val.is_a?(Hash) %>
<%=    ind %> <%= key %>
<%=     render 'target_hash.erb',
         :variables => { :config => val, :indent => @indent + 1} -%>
 <% else %>
  <%= key %> = <%= val %>
 <% end %>
 <% end %>