从docker容器内部``快照''失败

我从hub.docker.com提取了最新的Ubuntu映像

$ docker pull ubuntu

一切都下载正确，所以我启动了容器

$ docker run -it ubuntu

我snapd装进了容器

# apt update
...
All packages are up to date.
# apt install snapd
Get:1 http://security.ubuntu.com/...
...
done.

当我尝试登录时，出现故障

# snap login
2017/04/20 18:06:04.729212 main.go:220: WARNING: cannot create syslog logger
Email address: <me@email.com>
Password of "me@email.com":
error: cannot communicate with server: Post http://localhost/v2/login: dial unix /run/snapd-snap.socket: connect: no such file or directory

我什至试图sudo确保...

# sudo snap login
bash: sudo: command not found

要在Docker容器中工作要花更多的时间。在此处查看Ogra的容器：https： //github.com/ogra1/snapd-docker