`host.docker.internal` is rewritten to `localhost` for no reason

[pkit]

Issue submitter TODO list

• I've looked up my issue in FAQ
• I've searched for an already existing issues here
• I've tried running main-labeled docker image and the issue still persists there
• I'm running a supported version of the application which is listed here

Describe the bug (actual behavior)

@Haarolean the issue lies with rewriting requests as localhost for host.docker.internal within kafka-ui
Lo and behold:

$ docker run --rm -it -p 8083:8080 \
--add-host=host.docker.internal:host-gateway \
-e DYNAMIC_CONFIG_ENABLED=true \
ghcr.io/kafbat/kafka-ui

In the UI enter host.docker.internal and 39092
What I see in the log?

2025-03-23 16:33:39,223 WARN  [kafka-admin-client-thread | kui-admin-client-validation-1742747619215] o.a.k.c.NetworkClient: [AdminClient clientId=kui-admin-client-validation-1742747619215] Connection to node 1 (localhost/127.0.0.1:39092) could not be established. Node may not be available.

Why TF it's localhost???

Expected behavior

No response

Your installation details

See above

Steps to reproduce

See above

Screenshots

No response

Logs

No response

Additional context

No response

[github-actions]

Hi pkit! 👋

Welcome, and thank you for opening your first issue in the repo!

Please wait for triaging by our maintainers.

As development is carried out in our spare time, you can support us by sponsoring our activities or even funding the development of specific issues.
Sponsorship link

If you plan to raise a PR for this issue, please take a look at our contributing guide.

[Haarolean]

It can not be 'rewritten', at least not by the app. Please check your (advertised) listeners configs for the kafka cluster and consult with the (kafka) docs on how you should set them up. Can't help further without related configs.

Also, our compose examples: https://github.com/kafbat/kafka-ui/tree/main/documentation/compose