Re: [Engine-devel] restapi - removing template from a specified storage-domain
On 01/01/2012 05:59 PM, Omer Frenkel wrote:
----- Original Message -----
> From: "Ori Liel"<oliel(a)redhat.com>
> To: engine-devel(a)ovirt.org
> Sent: Sunday, January 1, 2012 3:15:18 PM
> Subject: [Engine-devel] restapi - removing template from a specified storage-domain
>
> I'm about to implement removing template from a specified
> storage-domain.
>
> A template is meta-data + disks. The meta-data is in the ovirt-engine
> database, the disks are (potentially) scattered across several
> storage-domains. Removing a template from a specified storage domain
> means removing that template's disks from that storage-domain.
> API-wise, it's better to enable the deletion at the single-disk
> level, otherwise rollback and all sorts of unnecessary complexities
> enter the picture. So what I would like to go forward with is the
> following API:
>
> DELETE /api/templates/{template_xxx}/disks/{disk_yyy}
>
> <storage_domain id="domain_zzz"/>
>
> This means: "delete the disk 'disk_yyy' (which belongs to template
> 'template_xxx' from the storage-domain 'domain_zzz'.
>
> Any comments?
just that CURRENT backend only allows removing per storage domain(s),
this functionallity is in plan, though (if that was what you meant..)
I think the implementation for this can/should wait for the new support
in the backend if makes more sense api-wise, rather than implementing
based on the current limitations and later changing the api.
the question is with the move to multiple storage domains, will an
atomic[1] verb to delete all disks from a specific storage domain (per
vm/template) will be provided, or only per disk.
[1] well, delete is rollforward, so not sure i understand Ori's point
about rollback. OTOH, the API should probably behave the same for
move/copy of disks, etc.