How to copy files from host to Docker container?

Question

I am trying to build a backup and restore solution for the Docker containers that we work with.

I have Docker base image that I have created, ubuntu:base

Answer 1

There are good answers, but too specific. I find out docker ps is good way to get container id you're interested in. Then do

mount | grep 

to see where the volume is mounted. That's

/var/lib/docker/devicemapper/mnt//rootfs/

for me, but it might be a different path depending on the OS and configuration. Now simply copy files to that path.

Using -v is not always practical.