[virt-tools-list] Adding support for cloud-init in virt-manager

[Daniel P. Berrange]

On Wed, Jul 19, 2017 at 11:21:33AM -0400, Alvin Starr wrote:
> On 07/19/2017 08:48 AM, Cedric Bosdonnat wrote:
> 
> > On Wed, 2017-07-19 at 11:59 +0000, Delemotte Barthelemy wrote:
> > > Hello everybody,
> > > 
> > > What do you think about allowing users to send cloud-init customization script directly from virt-manager ? (for
> > > instance open-stack's GUI horizon includes this feature)
> > > Here a blog article showing how to do with the CLI: http://blog.oddbit.com/2015/03/10/booting-cloud-images-with-libvir
> > > t/
> > > Would it be difficult to implement in virt-manger ?
> > > 
> > > I think pre-installed images are useful, but can't figure out how to use them efficiently with virt-manager.
> > > 
> > > Any suggestions ?
> > Sounds like a cool feature to me. The iso image creation sounds hacky: there surely is
> > a cleaner way to feed the config to cloud-init.
> > 
> > Something that could be interesting too is to allow creating a guest out of a virt-builder
> > template. Note that you can already clone an existing VM with virt-manager.
> > 
> > 
> 
> This may be a stupid idea but what about a metadata server?
> Since libvirt does the network setup it should be possible for libvirt to
> add in some iptables rules to redirect requests to a simple metadata server
> running alongside libvirtd.
> The metadata could be encoded in the vm's xml file.

We don't really want to hardcode knowledge about the cloud-init protocol
in libvirt. So any such setup needs to be done by the layer above libvirt,
using the libvirt APIs that exist as the mechanism.

Regards,
Daniel
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