Race condition that only happens on the much faster production hardware: Allow me to introduce myself

I mean, isn't that kind of the point of containers? To basically have the same environment everywhere.

Yeah, and it's useful to just check everything so you don't forget to add some essential system package for e.g. SSL, especially when working with Alpine.

Unit tests? No matter where you run them, and normally this is done by CI in a prebuilt container image, so you don't have to wait for "docker building". Acceptance tests must be run in an environment as close to production as possible, but that's definitely not a programmer's job.