How to use docker tramp?

I just... don't understand... No matter what, I can't access files inside docker... After doing C-x C-f /docker:(Here I put in docker id):/ But after that, I can access nothing. No matter what path I enter afterwards, it will result in asking me to make-directory, since it doesn't exist. Nothing. I tried volumes as well, yet, nothing.

I haven't used the docker tramp integration (yet) but I thought that's only available in Emacs 29. Are you running that version of Emacs already?

What docker image are you using? Can you use docker cp commands to move files into the container? Can you docker exec a bash shell and move around the file system?

I've used it a few times over the years on Emacs 27,28, or 26, not sure exactly which was the earliest version

Indeed. But there's a package on MELPA that does it for older versions.

It should be listing running container ids. Maybe all that is left is to press tab? Hate to be that guy, but: For me it works. (On Emacs 28.) I've even been able to go tramp SSH into docker container on a server and edit files there.

try docker.el