[Docker]——container和主机(host)之间的文件拷贝
1. 从 container 到 主机（host）使用 docker cp 命令
docker cp :/file/path/within/container /host/path/target
2. 从 主机（host） 到 container
[*] 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
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