Add webmin integration

[autinerd]

Proposed change

This adds the Webmin integration.

Webmin is a Web UI to manage and administrate servers, mostly in the Linux environment.

The data is polled via a XML-RPC API.

My goal is it to have the sensors as much as possible similar to the System Monitor integration.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
• Link to documentation pull request: Add webmin documentation home-assistant.io#30617

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the development checklist
• I have followed the perfect PR recommendations
• The code has been formatted using Ruff (ruff format homeassistant tests)
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

If the code communicates with devices, web services, or third-party tools:

• The manifest file has all fields filled out correctly.
  Updated and included derived files by running: python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
• For the updated dependencies - a link to the changelog, or at minimum a diff between library versions is added to the PR description.
• Untested files have been added to .coveragerc.

To help with the load of incoming pull requests:

• I have reviewed two other open pull requests in this repository.

[jpbede]

First of all thanks for the integration 👍 Here is my first quick review

[home-assistant]

Please take a look at the requested changes, and use the Ready for review button when you are done, thanks 👍

Learn more about our pull request process.

[jpbede]

To keep this going :)

[autinerd]

One question to the translation strings: Would it be better to first create a PR for the System Monitor integration to switch to strings.json? Then I can reference them here as well, because the sensors will be quite similar.

[jpbede]

Hm that would reduce the duplication of strings yes, but the entity names from System Monitor slightly differ from yours. System Monitor appends something to then name:

self._attr_name: str = f"{sensor_description.name} {argument}".rstrip()

[jpbede]

Talked about that with an other member, integrations should not reference to other strings from other integrations

[autinerd]

Hm that would reduce the duplication of strings yes, but the entity names from System Monitor slightly differ from yours. System Monitor appends something to then name:

self._attr_name: str = f"{sensor_description.name} {argument}".rstrip()

I will use placeholders as well when I add the disk and network sensors.

Talked about that with an other member, integrations should not reference to other strings from other integrations

Okay, then I will create the strings for my integration.

[jpbede]

Two minor things and then I think we're good to go 👍
But I would like a other member also have a look

[autinerd]

One question I have, should I disable all entites per default like systemmonitor does or should I keep them enabled and the user can disable the ones they don't want?

[jpbede]

I guess that would be a good idea as you plan to add more sensors. Depending on the system Webmin is running on, that could be a lot.

[autinerd]

Is done :)

[jpbede]

Just two things

[jpbede]

Thanks a lot @autinerd, great job! This looks good to me now 👍

Comments addressed