Cheers, haven't checked out zerotier before.
I'm curious, do you run GlusterFS on nomad or standalone? Seems like it could work fine as raw_exec, but I'm not sure if that's a good idea or not.
The only thing I still need to figure out about this setup is that I currently use a single glusterfs volume for most of my nomad tasks, I would love to have a nomad integration that could provision and mount the gluster volume when I specify a volume for a docker task in nomad.