Re: [libvirt] Is a libvirt connection remote?
On 04/18/2011 08:16 AM, Richard W.M. Jones wrote:
What's a good way to ask if a libvirt connection is remote or
not?
(Fundamentally I want to know if the disk images are openable as local
files, and I'm using "remote" as an proxy for this property.)
One way might be to compare virConnectGetHostname with the local
hostname. This would fail if the client and server had the hostname
set incorrectly (eg. "localhost.localdomain").
Another way might be some hairy libvirt URL parsing.
This is what we do in virt-manager, we just assume that presence of a hostname
== remote. Granted that will incorrectly match qemu+ssh://localhost/system but
I can't think of a valid use case for that besides testing.
- Cole
Another way would be to speculatively open the disk images. This
would fail if the client and server had guests with coincidentally
named disk images.
Or I could write a qemu block driver that could use
virDomainBlockPeek.
Rich.