Based on testing and https://github.com/FoldingAtHome/fah-issues/issues/1066 it seems that GPU slot auto-configure only works if no slots at all are defined. So the slot config has to remain in XML, the rest can go into /etc/default which FAHClient seems to handle better.
Also update FAH version. Use UTC time to match FAHClient.
Now using Openstack inventory plugin. Dynamic grouping does not seem to work as expected, the groups are
meta-terrafold_group_cpu_nodes (based on Terraform-injected metadata), does not seem possible to modify this via configuration of the Openstack inventory module, but at least this functions.
Inventory dump script uses Ansible inventory instead of gathering facts.
Should fix #3 (closed)