chore: major cleanup

[shanduur]

Describe your changes

Based on the commit messages provided, here is a description of the changes made:

1. Reworking Dockerfile to use multistage build:

   • The Dockerfile has been reworked to utilize a multistage build approach.
   • The build process now uses separate images for the build stage and the runtime stage.

2. Cleanup and update tooling:

   • The Makefile has been cleaned up, removing unused or outdated variables and task.
   • The pre-commit hooks have been updated to ensure code quality and adherence to coding standards.

3. Reducing dependencies and cleaning up code:

   • The dependency on the Cobra and Viper libraries has been removed.
   • Parsing of environment variables has been added, which is a replacement for the removed dependencies.

4. Extending documentation for servers:

   • The godoc documentation has been extended for both the Provisioner and Identity servers.
   • This may include additional explanations, comments, and examples to help other developers understand and use these servers more effectively.

5. Standardizing labels on container:

   • The commit involves adding labels that conform to the org.opencontainers.image.* standard.
   • These labels include metadata about the container image, such as its name, version, and other important information, and help maintain consistency and compatibility with various tools and platforms.

Issue ticket number and link

N/A

Checklist before requesting a review

• I have performed a self-review of my code.
• If it is a core feature, I have added thorough tests.
• CHANGELOG.md has been updated should there be relevant changes in this PR.

[shanduur]

I hope I didn't broke any CI, but I tried to maintain all defaults and behaviour of both the driver and Makefile.

[jecluis]

Hi @shanduur - thank you for the submission!

I'll review it in the coming days, if not earlier. :)

[jecluis]

Other than a typo in the Dockerfile, and a few non-blocking nits, this looks absolutely amazing work.

Thank you so much for all the effort you put into it, and sincere apologies for the delay in reviewing. :)

[jecluis]

@shanduur lint failed for some reason - mind checking whether this looks like it's coming from your changes?

https://github.com/s3gw-tech/s3gw-cosi-driver/actions/runs/9042470387/job/24849064117?pr=6#step:4:123

Let me know if not and I'll try figuring it out.

[jecluis]

@shanduur merged - thank you for your patience and effort! :)