[b]1. 从 container 到 主机（host）[/b]
使用 docker cp 命令
docker cp <containerId>:/file/path/within/container /host/path/target
比如安装mysql之后，复制的到my.cnf
docker cp 088ea61c775a:/etc/my.cnf /home/pandy/docker/mysql/
[b]2. 从 主机（host） 到 container[/b]
Get container name or short container id :
docker ps
Get full container id
docker inspect -f '{{.Id}}' SHORT_CONTAINER_ID-or-CONTAINER_NAME
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
d8e703d7e303 solidleon/ssh:latest /usr/sbin/sshd -D cranky_pare
$docker inspect -f '{{.Id}}' cranky_pare
or
$docker inspect -f '{{.Id}}' d8e703d7e303
d8e703d7e3039a6df6d01bd7fb58d1882e592a85059eb16c4b83cf91847f88e5
$sudo cp file.txt /var/lib/docker/aufs/mnt/d8e703d7e3039a6df6d01bd7fb58d1882e592a85059eb16c4b83cf91847f88e5/root/file.txt
