Re: Publishing raw generic{,cloud} images without tar, and without compression, plus versionning of point releases

[Andrew Ruthven <andrew@etc.gen.nz>]

On Tue, 2020-05-26 at 21:26 +0200, Bastian Blank wrote:
> 
> Yes, but you point it to the _qcow2_ image.  Which, for generic, is
> about 250-300MB in size, as it is somewhat compressed, and can be
> read
> by all the OpenStack tools.

That may be the case, but not all *backends* can use qcow2 images. On
our public and private OpenStack clouds we only work with raw images.
We have to convert all qcow2 images.

Please ignore the fact that the tools mention they can accept qcow2.
These are merely examples of what could be passed in.

> (Fun fact: even the OpenStack provided tool to generate the Octavia
> images does qcow2 by default.)
> [
> https://docs.openstack.org/octavia/latest/admin/amphora-image-build.html
> ]

Guess what, we convert the amphora images to raw before we upload them
as well.

While Jeremy quite rightly points out there is the "tasks" API in
Glance, we don't use it. We've occasionally thought about it, but it
moves the problem elsewhere and causes other complexities.

Andrew 'OpenStack Cloud Operator' Ruthven

-- 
Andrew Ruthven, Wellington, New Zealand
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