[HIVE-27311] Improve LDAP auth to support generic search bind authentication

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.0.0-alpha-2
• Fix Version/s: 4.0.0-beta-1
• Component/s: HiveServer2
• Labels: pull-request-available
• Target Version/s: 4.0.0
• Assignee: Naveen Gangam
• Reporter: Naveen Gangam
• Created: 03/May/23 15:03
• Updated: 15/Aug/23 06:33
• Resolved: 24/May/23 17:24

Description

Hive's LDAP auth configuration is home-baked and a bit specific to hive. This was by design intending to be as flexible as it can be for accommodating various LDAP implementations. But this does not necessarily make it easy to configure hive with such custom values for ldap filtering when most other components accept generic ldap filters, for example: search bind filters.

There has to be a layer of translation to have it configured. Instead we can enhance Hive to support generic search bind filters.

To support this, I am proposing adding NEW alternate configurations.
hive.server2.authentication.ldap.userSearchFilter
hive.server2.authentication.ldap.groupSearchFilter
hive.server2.authentication.ldap.groupBaseDN

Search bind filtering will also use EXISTING config param
hive.server2.authentication.ldap.baseDN

This is alternate configuration and will be used first if specified. So users can continue to use existing configuration as well. These changes should not interfere with existing configurations.

Issue Links

• links to: GitHub Pull Request #4284