I'm not able to launch instances on a compute node using LXC containers in the latest OpenStack Stein. I'm using Ubuntu 18.04 on both controller and compute node. I was previously working with LXC containers on OpenStack Ocata, Ubuntu 16.04 and everything worked. Now I get this error when launching an instance
ERROR nova.virt.libvirt.driver [req-373085f5-c49b-4e29-81c1-e40b255a649b 53a796e5302d4ff7aa5c1e0d0a1bf0ab 5a665480f95b465d9f83179f17e845a5 - default default] [instance: 0376c536-2cc1-48fa-ab79-c02d75be87b3] Failed to start libvirt guest
Does anybody have an idea why?