update

rov_server_grayscale_update_with_num.py

@@ -269,7 +269,7 @@ def remove_instances(create_client, slb_client, instance_ids):
 def main():
     try:
         version = sys.argv[1]
-        num = sys.argv[2]
+        num = int(sys.argv[2])
         slb_client = utils.connect_client(access_key_id=rov_server_config.slb_client_params['access_key_id'],
                                           access_key_secret=rov_server_config.slb_client_params['access_key_secret'],
                                           region_id=rov_server_config.slb_client_params['region_id'])