[dandarie]

You start from a base image of your choice. You only build the user replacement part.

You run docker-compose build ONCE and you're set. On my machine, it takes five seconds.

Heck, you can even run docker-compose build everytime you start the application, it will use the cached build and take less than one second.

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Correction: the docker-compose up -d takes care of the build process the first time it runs.

Literally, it takes more to complain about the issue than build the image ONCE.

[oauea]

And reproducibility goes straight out the window. And how do you even interop this with kubernetes?

[dandarie]

The solution is for docker-compose (or plain docker).

I don't think the reproducibility is out. It's the same app, the same image, the same intended user, you just inject, once, the local user and group ids.