Authentification ldap + Graphite

[Mon Jul 17 17:35:26.492303 2017] [:error] [pid 21630] Traceback (most recent call last):
[Mon Jul 17 17:35:26.492414 2017] [:error] [pid 21630]   File "/var/lib/graphite/webapp/graphite/account/ldapBackend.py", line 27, in authenticate
[Mon Jul 17 17:35:26.492562 2017] [:error] [pid 21630]     conn.simple_bind_s( settings.LDAP_BASE_USER, settings.LDAP_BASE_PASS )
[Mon Jul 17 17:35:26.492582 2017] [:error] [pid 21630]   File "/usr/lib64/python2.7/site-packages/ldap/ldapobject.py", line 208, in simple_bind_s
[Mon Jul 17 17:35:26.493009 2017] [:error] [pid 21630]     resp_type, resp_data, resp_msgid, resp_ctrls = self.result3(msgid,all=1,timeout=self.timeout)
[Mon Jul 17 17:35:26.493035 2017] [:error] [pid 21630]   File "/usr/lib64/python2.7/site-packages/ldap/ldapobject.py", line 469, in result3
[Mon Jul 17 17:35:26.493066 2017] [:error] [pid 21630]     resp_ctrl_classes=resp_ctrl_classes
[Mon Jul 17 17:35:26.493076 2017] [:error] [pid 21630]   File "/usr/lib64/python2.7/site-packages/ldap/ldapobject.py", line 476, in result4
[Mon Jul 17 17:35:26.493092 2017] [:error] [pid 21630]     ldap_result = self._ldap_call(self._l.result4,msgid,all,timeout,add_ctrls,add_intermediates,add_extop)
[Mon Jul 17 17:35:26.493102 2017] [:error] [pid 21630]   File "/usr/lib64/python2.7/site-packages/ldap/ldapobject.py", line 99, in _ldap_call
[Mon Jul 17 17:35:26.493116 2017] [:error] [pid 21630]     result = func(*args,**kwargs)
[Mon Jul 17 17:35:26.493151 2017] [:error] [pid 21630] NO_SUCH_OBJECT: {'matched': 'ou=groups,dc=mydomain,dc=com', 'desc': 'No such object'}

## LDAP / ActiveDirectory authentication setup
USE_LDAP_AUTH = True

LDAP_URI = "ldap://myserver.mydomain.com"
LDAP_SEARCH_BASE = "OU=groups,DC=mydomain,DC=com"
LDAP_BASE_USER = "uid=admin,ou=admin,dc=mydomain,dc=com"
LDAP_BASE_PASS = "mysecretpasswd"
LDAP_USER_QUERY = "(uid=%s)"  #For Active Directory use "(sAMAccountName=%s)"

# User DN template to use for binding (and authentication) against the
# LDAP server. %(username) is replaced with the username supplied at
# graphite login.
LDAP_USER_DN_TEMPLATE = "CN=%(username)s,OU=groups,DC=mydomain,DC=com"

ldapsearch -x -D "uid=admin,ou=admin,dc=mydomain,dc=com" -W -H ldap://myserver.mydomain.com -b "ou=groups,dc=mydomain,dc=com" -s sub 'uid=test'