libvirt users - Apr 2014 - Deriving VMs from a reference image via scripts

Hi.

I have a reference .vmdk (and .xml) reference VM.  I need to instantiate
multiple new VM’s from this, but changing various parameters: name, MAC address,
network connections, cores, memory size, disk size and backing store, etc. and
then start these new VM’s… all via ‘virsh’ et al from a script.

What are the steps to do this?  I was looking at the command help and some
tutorials but apparently not the right ones.

Thanks,

-Philip

On 04/25/2014 11:49 AM, Philip Prindeville wrote:
> Hi.
> 
> I have a reference .vmdk (and .xml) reference VM.  I need to instantiate
multiple new VM’s from this, but changing various parameters: name, MAC address,
network connections, cores, memory size, disk size and backing store, etc. and
then start these new VM’s… all via ‘virsh’ et al from a script.
You may want to look at virt-sysprep, part of the libguestfs suite of
tools, which can automate a number of these tasks when creating
derivative cloned VMs.  From the tools perspective, most of your work
will be done outside of virsh, in prepping the new disk images and
creating new derivative xml, then finally calling into virsh to start
the new xml.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org