Comment 4 for bug 1742734

What I am trying to say is that the settings in the file:

https://github.com/openstack/kolla-ansible/blob/master/ansible/roles/nova/templates/qemu.conf.j2

is getting applied to "nova-libvirt".

These don't take effect inside 'nova-libvirt' as after some time the group gets reset to '78' causing libvirt's operations to fail.

It should get applied to "nova-compute" instead, and the proper values that seem to work are:

user = "root"
group = "kvm"

in that conf.