remove old backup files locally prior to generation of new backup file

cbpi/__init__.py

@@ -1,3 +1,3 @@
-__version__ = "4.4.1.a9"
+__version__ = "4.4.1.a10"
 __codename__ = "Yeast Starter"
 

cbpi/controller/system_controller.py

@@ -16,6 +16,7 @@ import socket
 import importlib
 from tabulate import tabulate
 from datetime import datetime, timedelta, date
+import glob
 
 try:
     from systemd import journal
@@ -48,6 +49,13 @@ class SystemController:
         pass
 
     async def backupConfig(self):
+        files=glob.glob('*cbpi4_config*.zip')
+        for f in files:
+            try:
+                os.remove(f)
+            except Exception as e:
+                logging.error("Cannot remove old config backup: {}".format(e))
+
         try:
             current_date = date.today()
             current_date=str(current_date).replace("-","_")

cbpi/http_endpoints/http_system.py

@@ -143,8 +143,7 @@ class SystemHttpEndpoints:
         filename = await self.controller.backupConfig()
         #filename = "cbpi4_config.zip"
         file_name = pathlib.Path(os.path.join(".", filename))
-        logging.error(file_name)
-
+        
         response = web.StreamResponse(
             status=200,
             reason='OK',