docker挂载pinpoint文件时报错，invalid ro

docker 在部署pinpoint时，报错：

Error response from daemon: failed to create task for container: failed to create shim task: OCI runtime create failed: runc create failed: invalid rootfs: not an absolute path, or a symlink: unknown
解决方法：
1、找到docker的daemon.json
2、找到"data-root": "/var/lib/docker"这一项，将其修改完正确的docker根路径
3、重启docker：
systemctl restart docker