sf_nodeless_provisional_changes

diff --git a/scalefactory.com/modules/sf_nodeless/lib/facter/sf_nodeless.rb b/scalefactory.com/modules/sf_nodeless/lib/facter/sf_nodeless.rb
index dbbbe3b..45842de 100644
--- a/scalefactory.com/modules/sf_nodeless/lib/facter/sf_nodeless.rb
+++ b/scalefactory.com/modules/sf_nodeless/lib/facter/sf_nodeless.rb
@@ -40,7 +40,8 @@ if ec2_userdata
 end
 
 #################################################################################
-# Cloudstack fact finding
+# JSON http response fact finding 
+# - used for Cloudstack, as well as generic http ENC, on port 8844
 
 if Facter.value('is_virtual') == 'true'
 
@@ -48,6 +49,8 @@ if Facter.value('is_virtual') == 'true'
 
         virtual_router = nil
 
+        ## Cloudstack user-data/meta-data is kept within the virtual_router,
+        ## it's the same server that assigns dhcp addresses:
         Dir.glob("/var/lib/{dhclient,dhcp,dhcp3}/dhclient*.leases").each do |lease|
             next unless File.size( lease )
             File.open( lease ).each do |line|
@@ -59,7 +62,19 @@ if Facter.value('is_virtual') == 'true'
             break unless virtual_router.nil?
         end
 
-        uri = URI.parse( "http://#{virtual_router}/latest/user-data" )
+        ## use cloudstack virtual_router, if found, otherwise fall back to 
+        ## enc known hostname, at port 8844
+        if ! virtual_router.nil?
+            uri = URI.parse( "http://#{virtual_router}/latest/user-data" )
+        else
+            if File.exists?( '/usr/lib/sf_nodeless/sf_nodesless_url' )
+                url = File.open('/usr/lib/sf_nodeless/sf_nodesless_url', 'rb') { |f| f.read }
+                uri = URI.parse( url )
+            else
+                uri = URI.parse( "http://enc:8844/latest/user-data" )
+            end
+        end
+
         http = Net::HTTP::new( uri.host, uri.port )
         http.open_timeout = 3 # time out connects after 3s
         request = Net::HTTP::Get.new( uri.request_uri )