I won't update it any more and just leave it here.
So you can use it if you want, but it has been moved to https://github.com/bargees/barge. Thanks.

DockerRoot (formerly RancherOS Lite) is a lightweight Linux distribution made with Buildroot especially to run a Docker daemon as PID 1.

It's designed for a local development with Docker in a virtual machine.

It's inspired by the following projects.

• Only Docker
• RancherOS
• RancherOS Base System
• Boot2Docker
• DhyveOS

• Based on Buildroot 2016.02 with Linux kernel v4.4.8 and GLIBC.

• Runs a Docker daemon as PID 1

• Strip down the Linux kernel modules and drivers

• Busybox + the following utilities from Buildroot

  • sudo, bash, wget, xz, sntp, logrotate
  • ssh, scp, sftp, rsync
  • acpid, sshd, dhcpcd, xtables-multi
  • e2fsck, mke2fs, resize2fs, tune2fs

• Default username: docker

• Default password: docker

• dumb-init binary is built-in /usr/bin.

  e.g., docker run -d -v /usr/bin/dumb-init:/dumb-init:ro --entrypoint=/dumb-init <image> <command>

• pkg command is built-in. You can install individual packages from Buildroot + α.

   [docker@docker-root ~]$ pkg
   Usage: pkg {build|install} [-f] <package-name> [build options]
          pkg show <package-name>
          pkg list

  e.g., sudo pkg install vim

• Enable to switch between Docker versions.

   [docker@docker-root ~]$ sudo /etc/init.d/docker
   Usage /etc/init.d/docker {start|stop|restart|status} [<version>|latest|default]

  e.g., sudo /etc/init.d/docker restart latest

• How to build DockerRoot
• Customization of DockerRoot

Copyright (c) 2015-2016 A.I. <[email protected]>

Licensed under the GNU General Public License, version 2 (GPL-2.0)
https://opensource.org/licenses/GPL-2.0

• DockerRoot Packer for VirtualBox and QEMU
• DockerRoot running on xhyve hypervisor
• Package Installer for DockerRoot
• DockerRoot docker image