重装`docker`问题

问题描述：

level=error msg="devmapper: Udev sync is not supported. This will lead to data loss and unexpected behavior. Install a dynamic binary to use devicemapper or select a different storage driver. For more information, see https://docs.docker.com/engine/refere

解决办法

rm -rf /var/lib/docker

如果没有/var/lib/docker这个路径，则需要安装包

yum install udev udev-devel  device-mapper-libs