Since Dockerhub is now rate-limited now [1], it's better to use registry.fedoraproject.org/fedora:32.

[1] https://www.docker.com/increase-rate-limit

This requires a comment. Where is this variable coming from and what are the possible values? From the code below it seems that it's assumed to be either "0" or empty/unset.

Why not fedora:33? So we don't have to upgrade it very soon.

PEP8: E302 2 blank lines needed

same as above

no parentheses needed

this line seems too long

And this line too

Feedback should be addressed, PR rebased on top of develop.

+1 Thanks!

+1