chore: advertise restserver in rolegroup configmap

[xeniape]

Description

Implementation of #669

Adds

• hbase.rest.hostname
• hbase.rest.port
• hbase.rest.info.port

properties to the restserver rolegroup configmap. hbase.rest.hostname and hbase.rest.info.port are not pre-existing hbase-site.xml keys, but were added with a similar naming scheme as master properties.

Advertisement of restservers was done to be consistent with master and regionserver advertisement.

Note

(also added to the issue)
Added by @adwk67 The aim here is not to implement full discoverability for role endpoints; that should be done when we tackle that for all operators. We actually reached a point in the original implementation of HBase listener-endpoints where there was a config map (like kafka, hdfs etc.) that listed the endpoints by pod/replica, and at that point we decided against doing that as

• it would have been premature without knowing what discovery-2.0 would look like in general (naming, structure etc.), and
• we didn't want to implement and advertise something that could then become a breaking change later on.

So I understand the scope of this ticket to be about bringing the rest-server inline with the other roles, without claiming this to be the final destination.

Definition of Done Checklist

• Not all of these items are applicable to all PRs, the author should update this template to only leave the boxes in that are relevant
• Please make sure all these things are done and tick the boxes

Author

• Changes are OpenShift compatible
• CRD changes approved
• CRD documentation for all fields, following the style guide.
• Helm chart can be installed and deployed operator works
• Integration tests passed (for non trivial changes)
• Changes need to be "offline" compatible
• Links to generated (nightly) docs added
• Release note snippet added

Reviewer

• Code contains useful comments
• Code contains useful logging statements
• (Integration-)Test cases added
• Documentation added or updated. Follows the style guide.
• Changelog updated
• Cargo.toml only contains references to git tags (not specific commits or branches)

Acceptance

• Feature Tracker has been updated
• Proper release label has been added
• Links to generated (nightly) docs added
• Release note snippet added
• Add type/deprecation label & add to the deprecation schedule
• Add type/experimental label & add to the experimental features tracker

[maltesander]

LGTM!

[lfrancke]

This is not in 25.11, correct?
Could you please add release notes?

[xeniape]

This is not in 25.11, correct? Could you please add release notes?

No, not in 25.11

Release Note

Add hbase.rest.hostname, hbase.rest.port, and hbase.rest.info.port values to the restserver rolegroup configmap for advertising the restservers in the same way as master and regionservers.

Adjusted Release Note in #716 (comment)