From a675fa18dca66482b08d0062fcd4cd7eb45903bf Mon Sep 17 00:00:00 2001
From: Alexander Kukushkin <cyberdemn@gmail.com>
Date: Fri, 20 Dec 2019 12:06:18 +0100
Subject: [PATCH] Handle case when replication password is set to null (#1330)

Fixes https://github.com/zalando/patroni/issues/1231
---
 patroni/dcs/__init__.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/patroni/dcs/__init__.py b/patroni/dcs/__init__.py
index de394b22..4768f894 100644
--- a/patroni/dcs/__init__.py
+++ b/patroni/dcs/__init__.py
@@ -167,7 +167,7 @@ class Member(namedtuple('Member', 'index,name,session,data')):
 
         # apply any remaining authentication parameters
         if auth and isinstance(auth, dict):
-            ret.update(auth)
+            ret.update({k: v for k, v in auth.items() if v is not None})
             if 'username' in auth:
                 ret['user'] = ret.pop('username')
         return ret