[DOC] ldap2 auth documentation missing

[Martin-Kemp]

What do you want to do?

• [ ] Request a change to existing documentation
• [x] Add new documentation
• [ ] Report a technical problem with the documentation
• [ ] Other

Tell us about your request. Provide a summary of the request and all versions that are affected.

Opensearch supports features that are not documented anywhere.

There is an auth type called ldap2 which supports ldap connection pooling. This auth type is not documented anywhere, I only found it after (through desperation) searching through the code base.

Where it probably should be: https://opensearch.org/docs/latest/security-plugin/configuration/ldap/

Where to find it in the code: https://github.com/opensearch-project/security/tree/main/src/main/java/com/amazon/dlic/auth/ldap2

What other resources are available? Provide links to related issues, POCs, steps for testing, etc.

[hdhalter]

@scrawfor99 - Can you please see if this is adequately addressed in the documentation? https://opensearch.org/docs/latest/security/authentication-backends/ldap/. Thank you!

[AntonEliatra]

@hdhalter I can take this one

[AntonEliatra]

After speaking with @nibix it appears that this feature was not fully implemented, as a result the pooling is not actually working. Should we close this issue?