anchor.diff:  
   <% if @nginx_status_url %>
   # nginx
  -# See http://support.serverdensity.com/knowledgebase/articles/75885-nginx-monitoring-linux-mac-and-freebsd
  -
  +# See http://www.serverdensity.com/docs/agent/nginx/
   nginx_status_url: <%= @nginx_status_url %>
   <% end %>
   
   <% if @rabbitmq_status_url %>
   # RabbitMQ
  -# See http://support.serverdensity.com/knowledgebase/articles/75888-rabbitmq-monitoring-linux-mac-and-freebsd
  -
  +# See http://www.serverdensity.com/docs/agent/rabbitmq/
   rabbitmq_status_url: <%= @rabbitmq_status_url %>
  -rabbitmq_user: <% if @rabbitmq_user %><%= @rabbitmq_user %><% else %>guest<% end %>
  -rabbitmq_pass: <% if @rabbitmq_pass %><%= @rabbitmq_pass %><% else %>guest<% end %>
  +rabbitmq_user: <%= @rabbitmq_user || 'guest' %>
  +rabbitmq_pass: <%= @rabbitmq_pass || 'guest' %>
   <% end %>
   
  -<% if @tmp_directory %>
  -# Temporary file location
  -# See http://support.serverdensity.com/knowledgebase/articles/69360-agent-config-variables-linux-mac-freebsd
  -
  -tmp_directory: <%= @tmp_directory %>
  -<% end %>
  -
  -<% if @pidfile_directory %>
  -# Pid file location
  -# See http://support.serverdensity.com/knowledgebase/articles/69360-agent-config-variables-linux-mac-freebsd
  -
  -pidfile_directory: <%= @pidfile_directory %>
  -<% end %>
  -
  -<% if @logging_level %>
  -# Set log level
  -# See http://support.serverdensity.com/knowledgebase/articles/69360-agent-config-variables-linux-mac-freebsd
  -
  -logging_level: <%= @logging_level %>
  -<% end %>
  +# Plugins
  +# See http://www.serverdensity.com/docs/agent/writingplugins/
  +plugin_directory: <%= @plugin_dir %>
   
   <% unless @plugin_options.nil? or @plugin_options.empty? %>
  -# Plugin options
   <% @plugin_options.reject { |k, v| v.class == Hash } .each do |name, value| %>
   <%= name %> = <%= value %>
   <% end %>
  
positive.code: #
  # Server Density Agent Config
  # Docs: http://support.serverdensity.com/knowledgebase/articles/69360-agent-config-variables-linux-mac-freebsd
  #
  
  [Main]
  sd_url: <%= @sd_url %>
  agent_key: <%= @agent_key %>
  
  #
  # Plugins
  #
  # Leave blank to ignore. See http://support.serverdensity.com/knowledgebase/articles/76018-writing-a-plugin-linux-mac-and-freebsd
  #
  
  plugin_directory: <%= @plugin_dir %>
  
  #
  # Optional status monitoring
  #
  # See http://support.serverdensity.com/knowledgebase/topics/10921-configuration
  # Ignore these if you do not wish to monitor them
  #
  
  <% if @apache_status_url %>
  # Apache
  # See http://support.serverdensity.com/knowledgebase/articles/71145-apache-monitoring-linux-mac-and-freebsd
  
  apache_status_url: <%= @apache_status_url %>
  apache_status_user: <%= @apache_status_user %>
  apache_status_pass: <%= @apache_status_pass %>
  
negative.code: 
  <% if @mongodb_server %>
  # MongoDB
  # See http://www.serverdensity.com/docs/agent/mongodb/
  mongodb_server: <%= @mongodb_server %>
  mongodb_dbstats: <%= @mongodb_dbstats ? 'yes' : 'no' %>
  mongodb_replset: <%= @mongodb_replset ? 'yes' : 'no' %>
  <% end %>
  
  <% if @mysql_server %>
  # MySQL
  # See http://www.serverdensity.com/docs/agent/mysql/
  mysql_server: <%= @mysql_server %>
  mysql_user: <%= @mysql_user %>
  mysql_pass: <%= @mysql_pass %>
  