mirror of
https://github.com/p8952/bocker.git
synced 2025-11-08 22:43:59 +01:00
121 lines
3.7 KiB
Markdown
121 lines
3.7 KiB
Markdown
# Bocker
|
|
Docker implemented in 100 lines of bash.
|
|
|
|
* [Prerequisites](#prerequisites)
|
|
* [Example Usage](#example-usage)
|
|
* [Functionality: Currently Implemented](#functionality-currently-implemented)
|
|
* [Functionality: Not Yet Implemented](#functionality-not-yet-implemented)
|
|
* [License](#license)
|
|
|
|
## Prerequisites
|
|
|
|
The following packages are needed to run bocker.
|
|
|
|
* btrfs-progs
|
|
* curl
|
|
* iproute2
|
|
* iptables
|
|
* util-linux >= 2.25.2
|
|
* coreutils >= 7.5
|
|
|
|
Because most distributions do not ship a new enough version of util-linux you will probably need grab the sources from [here](https://www.kernel.org/pub/linux/utils/util-linux/v2.25/) 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.
|
|
* A `base-image` which contains the filesystem to seed your container with.
|
|
|
|
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 pull centos 7
|
|
######################################################################## 100.0%
|
|
######################################################################## 100.0%
|
|
######################################################################## 100.0%
|
|
Created: img_42150
|
|
|
|
$ bocker images
|
|
IMAGE_ID SOURCE
|
|
img_42150 centos:7
|
|
|
|
$ bocker run img_42150 cat /etc/centos-release
|
|
CentOS Linux release 7.1.1503 (Core)
|
|
|
|
$ bocker ps
|
|
CONTAINER_ID COMMAND
|
|
ps_42045 cat /etc/centos-release
|
|
|
|
$ bocker logs ps_42045
|
|
CentOS Linux release 7.1.1503 (Core)
|
|
|
|
$ bocker rm ps_42045
|
|
Removed: ps_42045
|
|
|
|
$ bocker run img_42150 which wget
|
|
which: no wget in (/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin)
|
|
|
|
$ bocker run img_42150 yum install -y wget
|
|
Installing : wget-1.14-10.el7_0.1.x86_64 1/1
|
|
Verifying : wget-1.14-10.el7_0.1.x86_64 1/1
|
|
Installed : wget.x86_64 0:1.14-10.el7_0.1
|
|
Complete!
|
|
|
|
$ bocker ps
|
|
CONTAINER_ID COMMAND
|
|
ps_42018 yum install -y wget
|
|
ps_42182 which wget
|
|
|
|
$ bocker commit ps_42018 img_42150
|
|
Removed: img_42150
|
|
Created: img_42150
|
|
|
|
$ bocker run img_42150 which wget
|
|
/usr/bin/wget
|
|
```
|
|
|
|
## Functionality: Currently Implemented
|
|
|
|
* `docker build` †
|
|
* `docker pull`
|
|
* `docker images`
|
|
* `docker ps`
|
|
* `docker run`
|
|
* `docker exec`
|
|
* `docker logs`
|
|
* `docker commit`
|
|
* `docker rm` / `docker rmi`
|
|
* Networking
|
|
|
|
† `bocker init` provides a very limited implementation of `docker build`
|
|
|
|
## Functionality: Not Yet Implemented
|
|
|
|
* Data Volume Containers
|
|
* Data Volumes
|
|
* Port Forwarding
|
|
* Quota Support / CGroups
|
|
|
|
## 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/>.
|