[libvirt] [PATCH alt] conf: Allow user define their own alias

[Daniel P. Berrange]

On Fri, Sep 29, 2017 at 09:06:01AM +0200, Michal Privoznik wrote:
> https://bugzilla.redhat.com/show_bug.cgi?id=1434451
> 
> It comes handy for management application to be able to have a
> per-device label so that it can uniquely identify devices it
> cares about. The advantage of this approach is that we don't have
> to generate aliases at define time (non trivial amount of work
> and problems). The only thing we do is parse the user supplied
> tag and format it back. For instance:
> 
>     <disk type='block' device='disk'>
>       <driver name='qemu' type='raw'/>
>       <source dev='/dev/HostVG/QEMUGuest1'/>
>       <target dev='hda' bus='ide'/>
>       <alias user='myDisk0'/>

I really do not like this - having two arbitrary string alias names is
just crazy.  If we want to add a second attribute to uniquely identify
devices, then it should be a UUID IMHO, so it at least has some tangible
benefit instead of just duplicating the existing id format


Regards,
Daniel
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