diff --git a/bin/ucloud-run-reinstall b/bin/ucloud-run-reinstall
old mode 100644
new mode 100755
diff --git a/scripts/ucloud b/scripts/ucloud
index b8ef32d..0780fb4 100755
--- a/scripts/ucloud
+++ b/scripts/ucloud
@@ -18,21 +18,16 @@ if __name__ == "__main__":
     arg_parser.add_argument('component_args', nargs='*')
     args = arg_parser.parse_args()
 
+    if args.conf_dir:
+        os.environ['UCLOUD_CONF_DIR'] = args.conf_dir
+
     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 Exception as e:
         logging.exception(e)
         print(e)
diff --git a/ucloud/api/main.py b/ucloud/api/main.py
index d3ddd5d..bbda7e9 100644
--- a/ucloud/api/main.py
+++ b/ucloud/api/main.py
@@ -28,7 +28,7 @@ class CreateVM(Resource):
         validator = schemas.CreateVMSchema(data)
         if validator.is_valid():
             vm_uuid = uuid4().hex
-            vm_key = join_path(config['api']["VM_PREFIX"), vm_uuid)
+            vm_key = join_path(config['etcd']["VM_PREFIX"], vm_uuid)
             specs = {
                 "cpu": validator.specs["cpu"],
                 "ram": validator.specs["ram"],
@@ -56,7 +56,7 @@ class CreateVM(Resource):
             # Create ScheduleVM Request
             r = RequestEntry.from_scratch(
                 type=RequestType.ScheduleVM, uuid=vm_uuid,
-                request_prefix=config['api']["REQUEST_PREFIX")
+                request_prefix=config['etcd']["REQUEST_PREFIX"]
             )
             request_pool.put(r)
 
@@ -71,7 +71,7 @@ class VmStatus(Resource):
         validator = schemas.VMStatusSchema(data)
         if validator.is_valid():
             vm = vm_pool.get(
-                join_path(config['api']["VM_PREFIX"), data["uuid"])
+                join_path(config['etcd']["VM_PREFIX"], data["uuid"])
             )
             vm_value = vm.value.copy()
             vm_value["ip"] = []
@@ -79,7 +79,7 @@ class VmStatus(Resource):
                 network_name, mac, tap = network_mac_and_tap
                 network = etcd_client.get(
                     join_path(
-                        config['api']["NETWORK_PREFIX"),
+                        config['etcd']["NETWORK_PREFIX"],
                         data["name"],
                         network_name,
                     ),
@@ -100,7 +100,7 @@ class CreateImage(Resource):
         validator = schemas.CreateImageSchema(data)
         if validator.is_valid():
             file_entry = etcd_client.get(
-                join_path(config['api']["FILE_PREFIX"), data["uuid"])
+                join_path(config['etcd']["FILE_PREFIX"], data["uuid"])
             )
             file_entry_value = json.loads(file_entry.value)
 
@@ -113,7 +113,7 @@ class CreateImage(Resource):
                 "visibility": "public",
             }
             etcd_client.put(
-                join_path(config['etcd']["IMAGE_PREFIX"), data["uuid"]),
+                join_path(config['etcd']["IMAGE_PREFIX"], data["uuid"]),
                 json.dumps(image_entry_json),
             )
 
@@ -125,7 +125,7 @@ class ListPublicImages(Resource):
     @staticmethod
     def get():
         images = etcd_client.get_prefix(
-            config['etcd']["IMAGE_PREFIX"), value_in_json=True
+            config['etcd']["IMAGE_PREFIX"], value_in_json=True
         )
         r = {
             "images": []
@@ -148,7 +148,7 @@ class VMAction(Resource):
 
         if validator.is_valid():
             vm_entry = vm_pool.get(
-                join_path(config['etcd']["VM_PREFIX"), data["uuid"])
+                join_path(config['etcd']["VM_PREFIX"], data["uuid"])
             )
             action = data["action"]
 
@@ -326,7 +326,7 @@ class GetSSHKeys(Resource):
 
                 # {user_prefix}/{realm}/{name}/key/{key_name}
                 etcd_key = join_path(
-                    config['etcd']['USER_PREFIX'),
+                    config['etcd']['USER_PREFIX'],
                     data["realm"],
                     data["name"],
                     "key",
@@ -430,9 +430,7 @@ class CreateNetwork(Resource):
 
                 prefix = nb_prefix.available_prefixes.create(
                     data={
-                        "prefix_length": config['network'][
-                            "PREFIX_LENGTH"]
-                        ),
+                        "prefix_length": config['network']["PREFIX_LENGTH"],
                         "description": '{}\'s network "{}"'.format(
                             data["name"], data["network_name"]
                         ),
diff --git a/ucloud/config.py b/ucloud/config.py
index 834d51e..4a067cb 100644
--- a/ucloud/config.py
+++ b/ucloud/config.py
@@ -25,8 +25,7 @@ config_file = os.path.join(conf_dir, conf_name)
 config = configparser.ConfigParser()
 
 try:
-    with open(config_file, "r") as conf_fd:
-        conf.read(conf_fd)
+    config.read(config_file)
 except FileNotFoundError:
     log.warn("Configuration file not found - using defaults")