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bocker/README.md
Peter Wilmott a500e2768a Update README.md
2015-07-21 19:52:20 +01:00

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Bocker

Docker implemented in 100 lines of bash.

Prerequisites

The following packages are needed to run bocker.

  • util-linux >= 2.25.2
  • btrfs-progs
  • iptables
  • iproute2

Because most distributions do not ship a new enough version of util-linux you will probably need grab the sources from here and compile it yourself.

Additionally your system will need to be configured with the following.

  • A btrfs filesystem mounted under /var/bocker
  • A network bridge called bridge0 and an IP of 10.0.0.1/24
  • IP forwarding enabled in /proc/sys/net/ipv4/ip_forward
  • A firewall routing traffic from bridge0 to a physical interface.

For ease of use a Vagrantfile is included which will build the needed environment.

Even if you meet the above prerequisites you probably still want to run bocker in a virtual machine. Bocker runs as root and among other things needs to make changes to your network interfaces, routing table, and firewall rules. I can make no guarantees that it wont trash your system.

Example Usage

$ bocker init base-image/
img_74432

$ bocker images
IMAGE_ID
img_74432

$ bocker run img_74432 uname -sro
Linux 3.10.0-123.20.1.el7.x86_64 GNU/Linux

$ bocker ps
CONTAINER_ID       COMMAND
ps_43529           uname -sro

$ bocker rm ps_43529
ps_43529

$ bocker rm img_74432
img_74432

Functionality: Currently Implemented

  • docker build †
  • docker images
  • docker ps
  • docker run
  • docker rm / docker rmi
  • Networking

† bocker init provides a very limited implemetation of docker build

Functionality: Not Yet Implemented

  • DNS
  • Port Forwarding
  • Data Volumes
  • Data Volume Containers
  • docker commit

License

Copyright (C) 2015 Peter Wilmott

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.