copy file from host to the docker container

copy file from host to the docker container:

Steps:

1: Get container name or short container id :
  1a. docker ps
  1b. Get full container id
docker inspect -f '{{.Id}}' SHORT_CONTAINER_ID-or-CONTAINER_NAME

  1c. copy file :
  sudo cp path-file-host /var/lib/docker/aufs/mnt/FULL_CONTAINER_ID/PATH-NEW-FILE


EXAMPLE :

$docker ps

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
450b4b6a87e7 amit/ssh:latest /usr/sbin/sshd -D cranky_pare

$docker inspect -f '{{.Id}}' cranky_pare

or

$docker inspect -f '{{.Id}}' 450b4b6a87e7
450b4b6a87e734ba68d1c077de5d3d9ac617b1b9b6e829fe28c917abf1dce44f

From your docker server:
$ sudo cp file.txt /var/lib/docker/aufs/mnt/450b4b6a87e734ba68d1c077de5d3d9ac617b1b9b6e829fe28c917abf1dce44f/root/file.txt