Better logging. Errors without stacktrace are now printed to stderr

ucloud/common/etcd_wrapper.py

@@ -33,7 +33,6 @@ def readable_errors(func):
         except etcd3.exceptions.ConnectionTimeoutError as err:
             raise etcd3.exceptions.ConnectionTimeoutError('etcd connection timeout') from err
         except Exception:
-            print('Some error occurred, most probably it is etcd that is erroring out.')
             logger.exception('Some etcd error occurred')
     return wrapper
 

ucloud/common/network.py

@@ -36,6 +36,7 @@ def create_dev(script, _id, dev, ip=None):
     try:
         output = sp.check_output(command, stderr=sp.PIPE)
     except Exception as e:
+        logger.exception('Creation of interface %s failed.', dev)
         print(e)
         return None
     else:

ucloud/common/storage_handlers.py

@@ -51,7 +51,6 @@ class ImageStorageHandler(ABC):
             output = sp.check_output(command, stderr=sp.PIPE)
         except Exception as e:
             if report:
-                print(e)
                 logger.exception(e)
             return False
         return True