[Engine-devel] ovirt core MOM

[Itamar Heim]

On 01/19/2012 11:58 AM, Ayal Baron wrote:
>
>
> ----- Original Message -----
>> On 01/18/2012 05:53 PM, Livnat Peer wrote:
>>> Hi All,
>>>
>>> This is what we've discussed in the meeting today:
>>>
>>> Multiple storage domain:
>>> - Should have a single generic verb for removing a disk.
>>> - We block removing the last template disk - template is immutable.
>>
>> but it will be deleted when deleting the template, right?
>
> Of course.
> The point is that the template is an immutable object and should not change (until we support editing a template at which point the user would have to change the template to edit mode before being able to make such changes and maybe also be able to run it and make changes internally?).

When i hear "edit a template" i don't expect replacing the files.
I expect a new edition of disks appearing as a new version of the 
template. but they don't have to derive from same original template.
say i want to create a "Fedora 16 template", then update it every month 
with latest "yum update".
it doesn't matter if i use a VM from same template or just create a new one.
then specify it is V2 of the "Fedora 16 template".
when someone creates a VM from this template, default version would be 
latest (but we can let them choose specific older versions as well)