How to alter code in container?

[igorbpf]

I'm sorry for this newbie question, but I need to alter the moderation behavior and right now what I do is to copy files out and then copy them in with the modifications (so annoying). Tried to use vim or even nano inside the container, but they are no available and mediagoblin user is not a super user. I also tried to create a volume and share the core code with the outside world, but the container breaks before mounting.

[mateothegreat]

@igorbpf what container are you referring to?