Nova-lxd configuration problem of a nova module

[Dr. Martin Bobak]

Trying to install OpenStack devstack (Queens) with a nova-lxd plugin on a fresh xenial host, but it always fails to find any hypervisor. I used local.conf from a nova-lxd git repo as well as from a devstack installation page, however, it leads to the same result.

The installation scripts put the driver into nova.conf (as compute_driver = lxd.LXDDriver), however, it looks like the nova module doesn't start correctly.

I got a following error (during installation verification):

ID=
+:: [[ '' == '' ]]
+:: sleep 1
++:: openstack --os-cloud devstack-admin --os-region RegionOne compute service list --host ubuntu --service nova-compute -c ID -f value

Didn't find service registered by hostname after 60 seconds
+----+------------------+--------+----------+---------+-------+----------------------------+
| ID | Binary | Host | Zone | Status | State | Updated At |
+----+------------------+--------+----------+---------+-------+----------------------------+
| 3 | nova-scheduler | ubuntu | internal | enabled | up | 2018-09-12T09:36:20.000000 |
| 5 | nova-consoleauth | ubuntu | internal | enabled | up | 2018-09-12T09:36:16.000000 |
| 6 | nova-conductor | ubuntu | internal | enabled | up | 2018-09-12T09:36:16.000000 |
| 1 | nova-conductor | ubuntu | internal | enabled | up | 2018-09-12T09:36:15.000000 |
+----+------------------+--------+----------+---------+-------+----------------------------+
Error on exit

------------------
Host SW info
------------------
Host OS: Ubuntu 16.04.5 LTS
LXC/LXD version: 3.4
Preinstalled sw: pylxd (the newest version from the master branch)

[Dr. Martin Bobak (martin.bobak)]

After discussion with Alex Kavanagh, I fixed the bug by adding an [lxd] section in nova-cpu.conf (to control the storage pool in LXD for containers to use when launching instances).

[lxd]
allow_live_migration = True
pool = {{ storage_pool }}

The storage pool is need to be set up separately in lxd.