Add automatic Docker image build

[vlnst]

I think it would be convenient to have latest images build automatically (so people don't have to build them on their servers), except I think I also should add dev version of a container since releases are quite rare.

This code allows for automatic image build on release.

[syeopite]

Thanks for the PR!

I'll prefer it if Priviblur can be published on Quay though similar to how other Privacy frontend projects are.

And yes a tag for the latest unstable commit from the master branch would be great to have

[TheFrenchGhosty]

I'm not an "expert" of GitHub CI, but this PR seems okay to me, even if it's far from perfect:

• ARM isn't supported for example
• Images never expires
• ...

I never personally made images with releases so I don't really know if the way you did it is correct, but it should be fine.

The rest seems OK

[syeopite]

Following a discussion I had with @TheFrenchGhosty, I'm only going to be officially supporting the release-image.

The "official" unstable image that builds off master would instead be pussthecat.org's image here https://github.com/PussTheCat-org/docker-priviblur-quay

Please remove the CI for the unstable-image, and address the issues @TheFrenchGhosty mentioned for the release-image.

My apologies about the extra work. Also, you do not have to force-push the branch each time you make any changes. GitHub's UI allows me to squish the commits when merging.

[vlnst]

I'm not an "expert" of GitHub CI

I'm not an expert in this either, I waited for someone to make an automatic build but no one has taken on it for a while.
I will try to implement what you wrote and once again carefully check everything to see what and how can be improved.

I never personally made images with releases so I don't really know if the way you did it is correct, but it should be fine.

I don't have an account on quay.io so I can't test if its correct

Please remove the CI for the unstable-image, and address the issues @TheFrenchGhosty mentioned for the release-image.

Okay

My apologies about the extra work.

Don't worry about it!

Also, you do not have to force-push the branch each time you make any changes. GitHub's UI allows me to squish the commits when merging.

Forgot that feature exists :D

@TheFrenchGhosty I've asked you a few questions about Dockerfile on XMPP. Your response would be greatly appreciated.

[vlnst]

I'm not sure if its preferable to build different images for different architectures as it is done in here or just one image with support for multiple.