[Slix]

> `docker build` is weirdly slow on btrfs, I always set up a separate ext4 `/var/lib/docker` volume.

I'm currently doing this for a different reason. My docker builds started failing after some Ubuntu upgrade. I gave up and used ext4 for that docker directory to fix everything. https://serverfault.com/q/1127148

It unsettled me because now I'm not sure whether btrfs (or docker with btrfs) is production-ready.

[LukeShu]

Docker has 8 different storage drivers that it can use... that's a lot, so you know they don't all get equal attention. As much as I love btrfs, it's probably fair to say that the only Docker storage driver that receives adequate attention to be production-ready is "overlay2".

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