module-nginx/templates/vhost/locations/proxy.erb

    proxy_pass            <%= @proxy %>;
    proxy_read_timeout    <%= @proxy_read_timeout %>;
    proxy_connect_timeout <%= @proxy_connect_timeout %>;
    proxy_redirect        <%= @proxy_redirect %>;
<% if @proxy_method -%>
    proxy_method          <%= @proxy_method %>;
<% end -%>
<% if @proxy_set_body -%>
    proxy_set_body        <%= @proxy_set_body %>;
<% end -%>
<% unless @proxy_set_header.nil? -%>

    <%- @proxy_set_header.each do |header| -%>
    proxy_set_header      <%= header %>;
    <%- end -%>

<% end -%>
<% if @proxy_cache -%>
    proxy_cache           <%= @proxy_cache %>;
<% end -%>
<% if @proxy_cache_valid -%>
    proxy_cache_valid     <%= @proxy_cache_valid %>;
<% end -%>
<% if instance_variables.any? { |iv| iv.to_s.include? 'auth_basic' } -%>

    <%- if @auth_basic -%>
    auth_basic           "<%= @auth_basic %>";
    <%- end -%>
    <%- if defined? @auth_basic_user_file -%>
    auth_basic_user_file <%= @auth_basic_user_file %>;
    <%- end -%>
<% end -%>