Future code base components? (python 3.12 / pyproject.toml vs setup.py / poetry vs pip-pipenv-twine-... / docker improvements)

[stynoo]

When working on the last PR I came across the statements that "The recommended way of using Setuptools has shifted in the direction of using the pyproject.toml in favour of setup.py and setup.cfg."
Combining this with "pkg_resources is deprecated" in python 3.12 and the docker wishlist in #133 I realized that we probably will have to introduce some breaking changes in the future.
Hence introducing this PR, primarily as a proposition of a possible way forwards. This introduces the following changes:

1. move away from setuptools/setup.py/requirements.txt and start using poetry as a package/venv builder-manager based on pyproject.toml
2. base everything on python3.12 and eliminate all deprecated dependencies and warnings
3. build a small lightweight docker image based on some best practices such as layer optimization & running the app as a non-priviledged user
4. update github actions to make use of this new way of working

Again, this will introduce breaking changes, this PR is incomplete but I wanted to share this early to start a discussion/collaboration. If this is not the correct way forwards or not what you envisioned, just let me know.

todo:

• update/cleanup README, especially the parts that involve crontab & the use of /root directory in the container
• test/update release mechanism, I am not sure how versioning is handled nowadays
• test on previous python versions (is 3.12 a hard cutoff?)

Need help with Kubernetes/K8s files in /contrib

[longstone]

I've taken a quick look and appreciate the changes overall. However, I have a few concerns about releasing with GitHub Actions that could use some improvement.

In summary:

• We should eliminate do_release.sh.
• The release version should be taken directly from Git tags, as it currently works this way.
• Running Docker as a non-root user is a significant advantage.

Unfortunately, I’ll have limited availability over the next two weeks.

[stynoo]

Thx for taking the time already, I don't think we need to rush this, nothing is on fire atm.
I'll try to dive deeper into the questions during the next weeks but my availability is also scarce.
I may need some help to optimize the release/version process.

[stynoo]

It's at a point now where I think the building and publishing of both package & container image should work (triggered from the Github create-new-release function). I am not sure if you would be able to test that separately.

The non-root user / python 3.12 requirement still introduces some breaking changes to end users setups so extra steps need to be taken to tackle this.

[stynoo]

Right we are getting somewhere, lot's of changes in the readme and covering all items in #133 . I am moving my own install over to containers built from https://github.com/stynoo/withings-sync to test the changes.
My main test env will be PI5 / ARM / dietpi / docker-compose / supercronic option.

Please have a look, especially at the way the readme is progressing and let me know what you think (at your convenience ofc).