Bocker 是一個用大約 100 行代碼實現(xiàn)的 Docker。

依賴：

• btrfs-progs

• curl

• iproute2

• iptables

• libcgroup-tools

• util-linux >= 2.25.2

• coreutils >= 7.5

基本使用方法：

$?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

$?bocker?run?img_42150?cat?/proc/1/cgroup
...
4:memory:/ps_42152
3:cpuacct,cpu:/ps_42152

$?cat?/sys/fs/cgroup/cpu/ps_42152/cpu.shares
512

$?cat?/sys/fs/cgroup/memory/ps_42152/memory.limit_in_bytes
512000000

$?BOCKER_CPU_SHARE=1024?\
????BOCKER_MEM_LIMIT=1024?\
????bocker?run?img_42150?cat?/proc/1/cgroup
...
4:memory:/ps_42188
3:cpuacct,cpu:/ps_42188

$?cat?/sys/fs/cgroup/cpu/ps_42188/cpu.shares
1024

$?cat?/sys/fs/cgroup/memory/ps_42188/memory.limit_in_bytes
1024000000

當前實現(xiàn)的功能：

• docker build ?

• docker pull

• docker images

• docker ps

• docker run

• docker exec

• docker logs

• docker commit

• docker rm / docker rmi

• Networking

• Quota Support / CGroups

?