Correct reraising of exception

When an exception was caught and rethrown, it should call 'raise'
without any arguments because it shows the place where an exception
occured initially instead of place where the exception re-raised.

Change-Id: If180215bda5592c0cba92cb2c9b3a61c13d62ccf

magnum/api/controllers/v1/bay.py

@@ -76,7 +76,7 @@ class Bay(base.APIBase):
                 # Change error code because 404 (NotFound) is inappropriate
                 # response for a POST request to create a Bay
                 e.code = 400  # BadRequest
-                raise e
+                raise
         elif value == wtypes.Unset:
             self._baymodel_id = wtypes.Unset
 

magnum/api/controllers/v1/certificate.py

@@ -53,7 +53,7 @@ class Certificate(base.APIBase):
                 # Change error code because 404 (NotFound) is inappropriate
                 # response for a POST request to create a Bay
                 e.code = 400  # BadRequest
-                raise e
+                raise
         elif value == wtypes.Unset:
             self._bay_uuid = wtypes.Unset
 

magnum/conductor/k8s_api.py

@@ -37,7 +37,7 @@ class K8sAPI(apiv_api.ApivApi):
             tmp.flush()
         except Exception as err:
             LOG.error("Error while creating temp file: %s", err)
-            raise err
+            raise
         return tmp
 
     def __init__(self, context, bay):