容器平台磁盘管理的思路，用4个词来总结就是：规划->监控->清理→扩容。

遇到一个Docker 报错，rpc error: code = 2 desc = oci runtime error: exec failed: container_linux.go:247: starting container process caused "process_linux.go:75: starting setns process caused \"fork/exec /proc/self/exe: no such file or directory\""，简单解决方法。