Docker Copying file from host to container

Question

I am trying to copy a set of files from docker host to container. On a AUFS system directly going into /var/lib/docker/aufs/... works. However I am another system with Fedor

Answer 1

UPDATE: Now docker cp command line command works both ways. See the docker cp documentation

Usage

docker cp [OPTIONS] CONTAINER:SRC_PATH DEST_PATH|-

docker cp [OPTIONS] SRC_PATH|- CONTAINER:DEST_PATH

=======Original Answer ==============

Found the most easiest way that works across storage drivers:

cd /proc/`docker inspect --format "{{.State.Pid}}" `/root

Have tested this on Fedora with Devicemapper as the storage driver and on Ubuntu with AUFS as the storage driver. Works for me in both the cases.