On 11/15/2017 06:57 PM, Richard W.M. Jones wrote:
On Tue, Nov 14, 2017 at 05:25:03PM +0000, Daniel P. Berrange wrote:
I would anticipate a standalone process "libvirt-qemu" that an application can spawn, providing a normal domain XML file via the command line or stdin. It would then connect to libvirtd to register its existance and claim its ownership of the guest name + UUID. Assuming that succeeds, 'libvirt-qemu' would directly spawn QEMU.
To be really clear about this, the application would run something like:
libvirt_xml = sprintf ("<domain><uuid>%s</uuid> etc etc", uuid); libvirt_xml_file = /* write libvirt_xml to a temporary file */;
if (fork () == 0) { execlp ("libvirt-qemu", "libvirt-qemu", "--config", libvirt_xml_file, NULL);
Problem with this is libvirt-qemu binary would need a connection object so that ...
}
dom = virDomainLookupByUUID (conn, uuid);
... it registers the domain under @conn connection (= it needs to register the domain at the right libvirtd [or whomever is going to keep list of running domains]). Michal