docker cleanup

a tiny all in one shell, which removes:

• containers that not running more than 1 Day ago
• images that don't belong to any remaining container(so keep the image cache since 1 Day runned)

intend to run as crontab job

feature

• it will remove all <none>:<none> image
• if the image has multiple repo:tag reference it, it will remove all repo:tag except with running container. Actually it is a nature of "docker rmi"
• few error messages will be show on screen, you can decide 2>/dev/null or not
• learn many thing from docker-rc, but I feel it could impelment more lightly

have fun!

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docker cleanup

这是一个简单的docker清理脚本，会删除:

• 停止超过1天的容器
• 1天之内没有运行容器的镜像

特性

• 会删除<none>:<none>的镜像
• 如果这个镜像有多个repo:tag指向，会删除多余的repo:tag，除了正在跑的容器对应的repo:tag，实际上这是docker rmi的特性
• 少量报错信息，你可以决定要不要2>/dev/null来不显示这些信息
• 从docker-rc学到了不少，就是觉得可以写的更精简一些

玩的开心!