begin to switch to configparser

To not have unwanted environment influence

scripts/ucloud

@@ -3,10 +3,8 @@
 import argparse
 import logging
 import importlib
-
-# For the exception
-import decouple
 import sys
+import os
 
 COMMANDS = ['api', 'scheduler', 'host', 'filescanner', 'imagescanner', 'metadata']
 
@@ -15,20 +13,25 @@ if __name__ == "__main__":
 
     arg_parser = argparse.ArgumentParser(prog='ucloud',
                                          description='Open Source Cloud Management Software')
+    arg_parser.add_argument('-c', '--conf-dir', help="Configuration directory")
     arg_parser.add_argument('component', choices=COMMANDS)
     arg_parser.add_argument('component_args', nargs='*')
     args = arg_parser.parse_args()
 
     try:
         name = args.component
-
         mod = importlib.import_module("ucloud.{}.main".format(name))
         main = getattr(mod, "main")
+
+        if args.conf_dir:
+            print("setting conf")
+            os.environ['UCLOUD_CONF_DIR'] = args.conf_dir
+
         main()
 
-    except decouple.UndefinedValueError as e:
-        print(e)
-        sys.exit(1)
+    # except decouple.UndefinedValueError as e:
+    #     print(e)
+    #     sys.exit(1)
 
     except Exception as e:
         logging.exception(e)