improve OS preparation, change config structure
diff --git a/wally/fuel_rest_api.py b/wally/fuel_rest_api.py
index 737bf2e..0567e71 100644
--- a/wally/fuel_rest_api.py
+++ b/wally/fuel_rest_api.py
@@ -287,6 +287,7 @@
             if net['name'] == network:
                 iface_name = net['dev']
                 for iface in self.get_info()['meta']['interfaces']:
+                    print iface, net['ip']
                     if iface['name'] == iface_name:
                         try:
                             return iface['ip']