Private tenants not available for indexes with FGAC domains[DOC]

[cwillum]

What do you want to do?

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

Tell us about your request.
Add note to the server_username setting in config.yml to alert users that when they change from the default kibanaserver the system drops the indices:admin/index_template* permissions, which leads to missing private tenants.

What other resources are available?
Based on Security Dashboards PR #1418.

[hdhalter]

https://github.com/opensearch-project/documentation-website/edit/main/_security/multi-tenancy/multi-tenancy-config.md

[AntonEliatra]

@hdhalter I can take this one

[AntonEliatra]

PR raised #7066