Libvirt itself supports hook(http://libvirt.org/hooks.html), but seems it doesn't support change VM XML spec file. I am thinking about adding a plugin system in kvm agent, before starting vm, kvm agent will call a python script, which can change vm xml file on the fly, then send the modified xml file to libvirt.
> -----Original Message----- > From: DE Clay [mailto:dec...@zeromachine.net] > Sent: Monday, November 26, 2012 6:32 AM > To: cloudstack-dev@incubator.apache.org > Subject: libvirt XML settings for KVM guests > > I would like to be able to change and persist libvirt XML settings for guests > (similar to the way that VMware allows you to edit/change the VMX file). > > Example use cases would be to change the default drivers to virtio and also > change qemu disk settings to other caching policies. > > It seems that now when I manually edit (via virsh edit), I lose those changes > when the instance is stopped/restarted. > > Is there a way to do this now? > > --Daron > -- > ***************************************** > Daron E. Clay, CTO > ZeroMachine.net LLC > Information Technology Architect > VMware Certified Professional > > ----------------------------------------- > Specializing in Cloud Computing Services and x86 Virtual Infrastructure > Solutions > ----------------------------------------- > > Phone: 970-769-4805 > Email: dec...@zeromachine.net > Web: http://zeromachine.net > *****************************************
