Migrate LDAP to new server with GSSAPI authentication#384
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hluk wants to merge 1 commit intorelease-engineering:masterfrom
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Migrate LDAP to new server with GSSAPI authentication#384hluk wants to merge 1 commit intorelease-engineering:masterfrom
hluk wants to merge 1 commit intorelease-engineering:masterfrom
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Some groups are only available in LDAP, so we cannot rely solely on OIDC token groups. Migrate to new IPA LDAP server with GSSAPI authentication, following the same approach as product-listings-manager. Keep existing OIDC groups check as the first path to avoid unnecessary LDAP queries when groups are available in the token. Downgrade LDAP fallback log messages from warnings to debug since falling back to LDAP is now expected behavior. Fix HTTP status codes for LDAP connection errors from 401 Unauthorized to 502 Bad Gateway, since these are server-side failures. JIRA: RHELWF-13972 Assisted-by: Claude Code (claude-opus-4-6)
lslebodn
reviewed
Apr 14, 2026
| con = ldap.initialize(ldap_host) | ||
| if use_gssapi: | ||
| _init_gssapi_credentials() | ||
| con.sasl_interactive_bind_s("", ldap.sasl.gssapi()) |
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It worked for me even without your init function
(venv) sh$ rpm -qa | grep sasl
cyrus-sasl-lib-2.1.28-30.fc42.x86_64
cyrus-sasl-2.1.28-30.fc42.x86_64
cyrus-sasl-devel-2.1.28-30.fc42.x86_64
cyrus-sasl-gssapi-2.1.28-30.fc42.x86_64
(venv) sh$ klist
klist: No credentials cache found (filename: /tmp/krb5cc_1000)
(venv) sh$ pip freeze
pyasn1==0.6.3
pyasn1_modules==0.4.2
python-ldap==3.4.5
(venv) sh$ python
Python 3.13.3 (main, Apr 22 2025, 00:00:00) [GCC 15.0.1 20250418 (Red Hat 15.0.1-0)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>
(venv) sh$ export KRB5_CLIENT_KTNAME=/tmp/my_sa_name.keytab
(venv) sh$ python
Python 3.13.3 (main, Apr 22 2025, 00:00:00) [GCC 15.0.1 20250418 (Red Hat 15.0.1-0)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import ldap
>>> ldap_conn = ldap.initialize('ldap://ldap.example.com')
>>> ldap_conn.sasl_non_interactive_bind_s('GSSAPI')
>>> ldap_conn.whoami_s()
'dn: uid=my_sa_name,ou=users,dc=example,dc=com'
(venv) sh$ klist
Ticket cache: FILE:/tmp/krb5cc_1000
Default principal: my_sa_name@EXAMPLE.COM
Valid starting Expires Service principal
04/14/2026 13:46:43 04/14/2026 23:46:43 krbtgt/EXAMPLE.COM@EXAMPLECOM
renew until 04/21/2026 13:46:42
04/14/2026 13:46:43 04/14/2026 23:46:43 ldap/ldap.example.com@
renew until 04/21/2026 13:46:42
Ticket server: ldap/ldap.example.com@EXAMPLE.COM
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Some groups are only available in LDAP, so we cannot rely solely on OIDC token groups. Migrate to new IPA LDAP server with GSSAPI authentication, following the same approach as product-listings-manager.
Keep existing OIDC groups check as the first path to avoid unnecessary LDAP queries when groups are available in the token. Downgrade LDAP fallback log messages from warnings to debug since falling back to LDAP is now expected behavior.
Fix HTTP status codes for LDAP connection errors from 401 Unauthorized to 502 Bad Gateway, since these are server-side failures.
JIRA: RHELWF-13972
Assisted-by: Claude Code (claude-opus-4-6)