2014-09-04

Docker - 给容器瘦身

通过导出然后再导入,可以减小容器的磁盘占用大小, 首先需要通过一个镜像在后台启动一个容器

给容器瘦身

# 非交互式方式,启动后立即停止,我们通过这种方式获取一个容器的ID
root@localhost:~# ID=$(docker run -d developerworks/base /bin/bash)
# 查看容器ID
root@localhost:~# echo $ID
dbbd685a6391418a24493f8a07df62b3be6e813fc217841a80b739c96a12e426
root@localhost:~# docker export dbbd685a6391418a24493f8a07df62b3be6e813fc217841a80b739c96a12e426 | docker import - base

备份容器

root@localhost:~# ID=$(docker run -d developerworks/base /bin/bash)
root@localhost:~# echo $ID
dbbd685a6391418a24493f8a07df62b3be6e813fc217841a80b739c96a12e426
# 导出并压缩
root@localhost:~# docker export dbbd685a6391418a24493f8a07df62b3be6e813fc217841a80b739c96a12e426 | gzip -c > developerworks-base.tgz

参考资料

1. http://www.hnwatcher.com/r/650964/Slimming-down-Docker-containers-Intercity-Blog

./configure –enable-mysqlnd –with-pdo-mysql –prefix=/root/runtimes/php –enable-fpm –with-gettext –with-mcrypt –with-mysql

Docker

container, docker