参考docker官方：https://docs.docker.com/develop/develop-images/baseimages/

安装

$ sudo apt-get install debootstrap
$ sudo debootstrap xenial xenial > /dev/null
$ sudo tar -C xenial -c . | docker import - xenial

验证

$ docker images
$ docker run xenial cat /etc/lsb-release

镜像大小230M

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root@Ubunt-16:~# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
xenial latest 75f64e754992 About an hour ago 230MB