Make Rapi backed set node tags correctly

Since the htools representation of a node now allows adding
the node tags, populate this field correctly in the Rapi
backend.

Signed-off-by: Klaus Aehlig <aehlig@google.com>
Reviewed-by: Guido Trotter <ultrotter@google.com>

src/Ganeti/HTools/Backend/Rapi.hs

@@ -166,8 +166,10 @@ parseNode ktg a = do
               dtotal  <- extract "dtotal"
               dfree   <- extract "dfree"
               ctotal  <- extract "ctotal"
-              return $ Node.create name mtotal mnode mfree
-                     dtotal dfree ctotal False spindles guuid'
+              tags    <- extract "tags"
+              return . flip Node.setNodeTags tags $
+                Node.create name mtotal mnode mfree dtotal dfree ctotal False
+                            spindles guuid'
   return (name, node)
 
 -- | Construct a group from a JSON object.