docker run on diskless

 https://serverfault.com/questions/763805/how-to-place-docker-images-ontop-of-an-nfs-share-in-coreos

https://stackoverflow.com/questions/44942790/docker-error-failed-to-register-layer-symlink/61847010

https://stackoverflow.com/questions/66071815/docker-failed-to-register-layer-symlink-when-custom-data-root-is-set?noredirect=1&lq=1

https://blog.csdn.net/lj6052317/article/details/110095736

https://blog.csdn.net/weiguang1017/article/details/76212203

https://stackoverflow.com/questions/41453263/docker-networking-disabled-warning-ipv4-forwarding-is-disabled-networking-wil

https://newbedev.com/docker-error-failed-to-register-layer-symlink

https://stackoverflow.com/questions/19234831/where-are-docker-images-stored-on-the-host-machine

#good

https://coolshell.cn/articles/17200.html

https://docs.docker.com/storage/storagedriver/select-storage-driver/

https://blog.51cto.com/dengaosky/2062021

https://www.jianshu.com/p/63fdb0c0659c

## other

https://stackoverflow.com/questions/37672018/clean-docker-environment-devicemapper

https://github.com/moby/moby/issues/18867#issuecomment-169020478

https://stackoverflow.com/questions/31620825/usage-of-loopback-devices-is-strongly-discouraged-for-production-use

https://www.itread01.com/content/1547139087.html

https://jasonlee.xyz/docker-storage-drivershe-ding-wei-overlayfs/

https://ithelp.ithome.com.tw/articles/10197423?sc=iThelpR

https://opensource.com/article/20/5/systemd-units

https://blog.51cto.com/daibaiyang119/2160923

https://github.com/moby/moby/issues/21531#issuecomment-204184490

https://unix.stackexchange.com/questions/398304/how-can-i-run-docker-on-diskless-machines

https://unix.stackexchange.com/questions/436643/using-overlay2-on-centos-7-4