Accessing files at the root of a container

Hi guys, sorry for my stupid.
How can I mount a volume to a container so that I can access files at the root of the container from the host?
run -v only works if mounted as a separate folder inside the container.
run -v /home/user/folder_name conteyner_name/latest
Thith is runs, but nothing appears in the folder.

Can you rephrase that? A specific example of what you tried (docker run ..., what you expected to happen (ls x inside the container should show y) and what actually happens (it shows z instead) would be helpful as well.