[openstack-dev] [heat] [glance] Heater Proposal
clint at fewbar.com
Thu Dec 5 18:23:11 UTC 2013
Excerpts from Randall Burt's message of 2013-12-05 09:05:44 -0800:
> On Dec 5, 2013, at 10:10 AM, Clint Byrum <clint at fewbar.com>
> > Excerpts from Monty Taylor's message of 2013-12-04 17:54:45 -0800:
> >> Why not just use glance?
> > I've asked that question a few times, and I think I can collate the
> > responses I've received below. I think enhancing glance to do these
> > things is on the table:
> > 1. Glance is for big blobs of data not tiny templates.
> > 2. Versioning of a single resource is desired.
> > 3. Tagging/classifying/listing/sorting
> > 4. Glance is designed to expose the uploaded blobs to nova, not users
> > My responses:
> > 1: Irrelevant. Smaller things will fit in it just fine.
> Fitting is one thing, optimizations around particular assumptions about the size of data and the frequency of reads/writes might be an issue, but I admit to ignorance about those details in Glance.
Optimizations can be improved for various use cases. The design, however,
has no assumptions that I know about that would invalidate storing blobs
of yaml/json vs. blobs of kernel/qcow2/raw image.
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