Network Module class structure for Kube support

Related-PROD: PROD-35903

Change-Id: I474a347452b472df3e2272357d1a036b4893e844
diff --git a/cfg_checker/nodes.py b/cfg_checker/nodes.py
index e568cec..615a1a4 100644
--- a/cfg_checker/nodes.py
+++ b/cfg_checker/nodes.py
@@ -196,6 +196,9 @@
             logger_cli.warning(
                 "Multiple domains detected: {}".format(",".join(_domains))
             )
+            # TODO: Use domain with biggest node count by default
+            # or force it via config option
+            
         else:
             self.domain = _domains[0]
         logger_cli.info("-> {} nodes inactive".format(len(self.skip_list)))