Add rpcinterface extensions support

README.md

@@ -43,6 +43,19 @@ Attributes
 	 'serialrestart'=> 'supervisorserialrestart.controllerplugin:make_serialrestart_controllerplugin'
      })
 	 ```
+- `node['supervisor']['rpcplugins']` - entries for `rpcinterface` extensions.
+  For instance, to install [twiddler](https://pypi.python.org/pypi/supervisor-twiddler), you'd manually add this to your config:
+
+    ```text
+    [rpcinterface:twiddler]
+    supervisor.rpcinterface_factory = supervisor_twiddler.rpcinterface:make_twiddler_rpcinterface
+	```
+  Which can be achieved using
+    ```ruby
+	node.default['supervisor']['rpcplugins'] = ({
+	 'twiddler'=> 'supervisor_twiddler.rpcinterface:make_twiddler_rpcinterface'
+     })
+	 ```
 
 
 Resources/Providers

attributes/default.rb

@@ -39,3 +39,4 @@
 default['supervisor']['nocleanup'] = false
 default['supervisor']['socket_file'] = '/var/run/supervisor.sock'
 default['supervisor']['ctlplugins'] = {}
+default['supervisor']['rpcplugins'] = {}

recipes/default.rb

@@ -31,6 +31,13 @@
   version node['supervisor']['version'] if node['supervisor']['version']
 end
 
+# If rpcplugins are presented, try to install them
+node['supervisor']['rpcplugins'].each_key do |k|
+  python_pip "supervisor_#{k}" do
+    action :upgrade
+  end
+end
+
 directory node['supervisor']['dir'] do
   owner "root"
   group "root"

templates/default/supervisord.conf.erb

@@ -41,6 +41,13 @@ nocleanup=<%= @supervisord_nocleanup %>
 [rpcinterface:supervisor]
 supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
 
+<% @node['supervisor']['rpcplugins'] && @node['supervisor']['rpcplugins'].each do |k,v| %>
+
+[rpcinterface:<%=k%>]
+supervisor.rpcinterface_factory = <%=v%>
+
+<%end%>
+
 [supervisorctl]
 serverurl=unix:///var/run//supervisor.sock ; use a unix:// URL  for a unix socket