Excerpts from Nick Coghlan's message of 2014-11-19 10:48 +10:00:
Is there a way to get a whole group's SSH keys onto a system without going through the scheduler?
No, short of adding an explicit ks_appends which writes to /root/.ssh/authorized_keys the same way the Beaker ssh_keys snippet does.
Or is manual provisioning currently restricted to only added the SSH key of the user provisioning the system?
Yes it is.