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
- 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"
- learn many thing from docker-rc, but I feel it could impelment more lightly
- log output to /var/log/docker-cleanup.log, you can change it to other place
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
- 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
- 从docker-rc学到了不少，就是觉得可以写的更精简一些
- 报错信息输出到/var/log/docker-cleanup.log, 你可以选择换个地方输出