[sysadmin-bin] Attempt reconnecting in case of LDAP server going into maintenance/downtime

[Andrea Veri <averi src gnome org>]

commit 90e92daa846d9bb28c8405717234e0fb67b75c70
Author: Andrea Veri <averi redhat com>
Date:   Tue May 11 16:46:57 2021 +0200

    Attempt reconnecting in case of LDAP server going into maintenance/downtime

 gnome_ldap_utils.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/gnome_ldap_utils.py b/gnome_ldap_utils.py
index 2f0bb26..7485d8a 100755
--- a/gnome_ldap_utils.py
+++ b/gnome_ldap_utils.py
@@ -19,8 +19,12 @@ class Gnome_ldap_utils:
             self.conn = ldap.initialize("ldaps://%s:636" % self.LDAP_HOST)
             self.conn.simple_bind_s(self.LDAP_USER, self.LDAP_PASSWORD)
         except ldap.LDAPError as e:
-            print(e, file=sys.stderr)
-            sys.exit(1)
+            if e.errno == 11:
+                self.conn = ldap.ReconnectLDAPObject("ldaps://%s:636" % self.LDAP_HOST,
+                                                     retry_max=10, retry_delay=3)
+            else:
+                print(e, file=sys.stderr)
+                sys.exit(1)
 
     def get_group_from_ldap(self, group):
         import ldap.filter