When I try to run openstack/Nova-LXD, I get the 'There is no LXD Bridge found on your system which usually means this is your first time running LXD' error.
If you drop out to start the service you get
Warning: Stopping lxd-service, but it can still be activated by: ld.socket Failed to start lxd-bridge.service: Unit lxd-bridge.service not found
and indeed if you try to start the service manually:
systemctl start lxd-bridge ==== AUTHENTICATING FOR org.freedesktop.systemd1.manage-units === Authentication is required to start 'lxd-bridge.service'. Authenticating as: .... Password: ==== AUTHENTICATION COMPLETE === Failed to start lxd-bridge.service: Unit lxd-bridge.service not found. $ service lxd-bridge status ● lxd-bridge.service Loaded: not-found (Reason: No such file or directory) Active: inactive (dead)
I have done some experiments with lxdbr0, lxcbr0 and testbr0 along the way.