Re: host identifier

On Mon, Jul 05, 2021 at 08:31:15AM +0800, Jiatong Shen wrote: > Hello community, > > I am using OpenStack nova and realize that nova now uses host fqdn from > libvirt as a uniq identifier for a compute node. The issue is that host > might need to change its fqdn under some > rare circumstances and lose some usage data due to the nova manages > compute node resources. > > My question is: does libvirt already export host uuid identifier to other > applications? I skim through the code base and find there is host uuid > related code which reads /etc/machine-id to obtain a uniq uuid for > migration, but seems this uuid cannot be obtained through virsh interface. Libvirt has long exposed a host UUID in the capabilities XML Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|