[ovirt-devel] [engine-devel] Turn Blank template into defaults

[Michal Skrivanek]

On Jan 22, 2015, at 13:15 , Sven Kieske <S.Kieske at mittwald.de> wrote:

> 
> 
> On 22/01/15 11:28, Tomas Jelinek wrote:
>> Hi All,
>> 
>> I have started to work on a new feature[1] which will make it possible to edit the Blank template.
>> The proposal is available on the feature page[2]
>> 
>> Any comments are more than welcome,
>> Tomas
>> 
>> [1]: https://bugzilla.redhat.com/show_bug.cgi?id=1130174
>> [2]: http://www.ovirt.org/Features/Blank_to_Defaults
> 
> Well you can't just rename the blank template to "default".
> You would break any upgrade from 3.5. if you did.
> At least you could not run any pre 3.6. cluster level
> vms on this 3.6. engine.

it's not really that many changes in fact.
existing VMs are not affected as on create VM the fields are being copied to the new VM db entry and the association to the Blank template is no longer needed/useful.
Further edits of Default wouldn't affect existing VMs…so I think we can make it work for all cluster levels right away

Thanks,
michal

> 
> Is it intended to break compatibility in this release
> or not?
> 
> 3.5 cluster level vms (e.g. new created vms) need
> afaik the "blank" template. how do you want to handle that?
> 
> could you instead add this "default" template just for
> cluster/dc level 3.6, so just "3.6" vms use it?
> 
> In general I think this is a much anticipated and needed
> feature, so I'm looking forward to the 3.6 release! :)
> 
> -- 
> Mit freundlichen Grüßen / Regards
> 
> Sven Kieske
> 
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