Change Docker runtime directory

[jolivares]

I'm running Docker on a CentOS 7 and I'd like to use a partition different than the default one to store Docker data. I've come across this guide: https://docs.docker.com/engine/admin/systemd/#runtime-directory-and-storage-driver But I cannot find the graph parameter on the puppet module. Is there a way to achieve this by using some other param or is it not supported at all?

[mendhak]

I found a root_dir - that gets used as a -g parameter