Update Containerfile

[jauderho]

Using bullseye-slim instead of bullseye saves about 100MB in the resulting image. Not huge but every little bit helps.

REPOSITORY                        TAG             IMAGE ID       CREATED          SIZE
owrt                              latest          e63400b3f114   14 seconds ago   1.11GB
owrt-slim                         latest          6fae00390136   9 minutes ago    1.01GB

[jauderho]

Actually, should the image be ubuntu instead given that the actual workflow currently uses ubuntu-latest? Using ubuntu results in an image about the same size as bullseye-slim.

REPOSITORY                        TAG             IMAGE ID       CREATED          SIZE
owrt-ubuntu                       latest          aaf239b4988a   2 minutes ago    1.02GB
owrt                              latest          e63400b3f114   13 minutes ago   1.11GB
owrt-slim                         latest          6fae00390136   22 minutes ago   1.01GB

[dangowrt]

I'd rather have the workflow changed to also run on debian/bullseye-slim...

[jauderho]

AFAIK, GitHub Actions only run on Ubuntu, macOS and Windows.

https://github.com/actions/runner-images

[dangowrt]

AFAIK, GitHub Actions only run on Ubuntu, macOS and Windows. That's sad. But ok, I'm not complaining about having CI resources thrown at me for free.

Let's use Ubuntu for the Containerfile as well then, like you suggested.

[jauderho]

I've updated the PR and also changed the workflow to use ubuntu-22.04 instead of ubuntu-latest to match.