Comment by kazinator

> And if you know where to look, you can even find that process in /proc.

This is very important for debugging! Not just that process, but the processes running in that Docker can be found in /proc.

Why this is useful is that you can run gdb outside of that docker and point it to a process in the docker, including setting the file system root to the docker one, so that it gdb reads the correct objects from the correct paths, to get the right symbols and addresses.