libvirt VMs not persisted across reboot
I followed the nixops manual for libvirtd deployment (https://nixos.org/nixops/manual/#idm140737318336624). Then I rebooted my (host) machine and my nixops deployment disappeared from virt-manager! Looking in the system log it seems libvirt-guests.sh perhps drops the nixops deployment because it is a "transient guest" (whatever that means):
libvirt-guests.sh: Not suspending transient guests on URI: default: nixops-854089ab-66e8-11e7-8deb-02421296f7a0-example
Other guest VMs I have created manually are saved and restored by libvirt-guests.sh (they are not called "transient guests") in the system log, so this looks like a nixops issue to me.
This issue means that, for me, the libvirt backend is unuseable.
Running nixops 1.5.1 on NixOS 17.03.