Same docker image with differrent application config in multiple environment

[g0tbread]

Hello
When using microconfig, it can generate application configurations for different environments based on parameters, which is pretty good.
However, I want the docker image to use the same image from stage -> pre-production -> production environment, How to specify corresponding configuration files according to different environments?
This problem actually has nothing to do with microconfig, I just want to know how to solve it.
Thanks