Re: [libvirt] New Libvirt Implementation - OpenNebula
On Mon, Nov 03, 2008 at 12:23:47PM +0100, Ruben S. Montero wrote:
Dear all,
You may find of interest a new implementation of the libvirt
virtualization API. This new implementation adds support to OpenNebula, a
distributed VM manager system. The implementation of libvirt on top of a
distributed VM manager, like OpenNebula, provides an abstraction of a whole
cluster of resources (each one with its hypervisor). In this way, you can use
any libvirt tool (e.g. virsh, virt-manager) and XML domain descriptions at a
distributed level.
For example, you may create a new domain with 'virsh create', then OpenNebula
will look for a suitable resource, transfer the VM images and boot your VM
using any of the supported hypervisors. The distributed management is
completely transparent to the libvirt application. This is, a whole cluster
can be managed as any other libvirt node.
The current implementation is targeted for libvirt 0.4.4, and includes a patch
to the libvirt source tree (mainly to modify the autotools files), and a
libvirt driver.
More information and download instructions can be found at:
* http://trac.opennebula.org/wiki/LibvirtOpenNebula
* http://www.opennebula.org
Interesting, but this raises a couple of questions:
- isn't OpenNebula in some way also an abstraction layer for the
hypervisors, so in a sense a libvirt driver for OpenNebula
is a bit 'redundant' ? Maybe i didn't understood well the
principles behind OpenNebula :-) (sorry first time I learn about
this).
- what is the future of that patch ? Basically libvirt internals
changes extremely fast, so unless a driver gets included as part
of libvirt own code source, there is a lot of maintainance and
usability problems resulting from the split. Do you intent to
submit it for inclusion, or is that more a trial to gauge interest ?
Submitting the driver for inclusion means the code will have to be
reviewed, released under LGPL, and a voluteer should be available
for future maintainance and integration issues.
thanks !
Daniel
--
Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/
daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/
http://veillard.com/ | virtualization library http://libvirt.org/