Thanks, I'll check it out. On Mon, Jul 5, 2021 at 4:30 PM Daniel P. Berrangé <berra...@redhat.com> wrote:
> 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 :| > > -- Best Regards, Jiatong Shen
