use ubuntu 24.04 for the simple image

[zardus]

The existing simple image is too weird. Python in /usr/local/bin? That's lame. Let's use use ubuntu?

[ConnorNelson]

I wanted just python and exec-suid in this image, and I wanted the image to be tiny.

Probably this is decently bigger, and also suddenly it comes with two python packages. Should we install anything else too? Or create another Dockerfile? :)

Nix nix nix.

On a more serious note (or at least on a less poke poke poke note), this repo’s contents/purpose now also belongs in pwncollege/challenges.

[zardus]

I removed the two packages. I do think that having python randomly in /usr/local/bin has challenge impact, and while I agree that eventually (very soon!) this repo should no longer be necessary, I think we should have an image here that has python in /usr/bin. I think we'll survive the extra 30mb or so of the image :-)

[ConnorNelson]

Yeah, beyond size though, we would need to PR anything currently using this image to change the path to the python interpreter from /usr/local/bin/python to /usr/bin/python, e.g.:

https://github.com/pwncollege/example-dojo/blob/10b0b68c57b87c7b963b50e01f279797e10d0c4c/hello/apple/apple#L1

[ConnorNelson]

To be fair, after a very quick glance, that might be the only spot.

[zardus]

To be safe, I added a symlink for backwards compatibility!

[snowy-fluff]

I'm curious is there a reason behind not using python in /usr/local/bin/python? Without it wouldn't pip install packages directly to /usr/bin/python, aka system python?