[openstack-dev] [nova][all] Architecture Diagrams in ascii art?

Joe Gordon joe.gordon0 at gmail.com
Fri May 15 21:26:34 UTC 2015


On Tue, May 12, 2015 at 5:25 AM, Thierry Carrez <thierry at openstack.org>
wrote:

> Sean Dague wrote:
> > They can be modified if you provide source files, or use a source
> > oriented format like SVG, or ISO standard ODG (used by OpenOffice /
> > LibreOffice). There is a reason the "spider" diagram has ended up in
> > every single OpenStack presentation I've seen for the last 2 years.
>
> And there is also a reason the "spider" diagram was never updated (or
> fixed for accuracy, for that matter).
>

I tried creating the spider diagram pragmatically with pydot, but it didn't
work very well, it just looks like plate of spaghetti

Diagram: https://i.imgur.com/fDqpB9m.png
source: https://github.com/jogo/graphing-openstack

>
> I'm not saying we should use ASCII art, I'm saying we should use a
> source-oriented format so that we reduce the likeliness of stale
> information. I was mostly reacting to Matt's mention of "real image
> files" (taking as an example the pictures in
> https://wiki.openstack.org/wiki/QA/AuthInterface which are PNGs without
> any source).
>
> If only one person can easily update a picture, it *will* go stale. And
> I think I prefer "ugly" to "plain wrong". With source-oriented formats
> you can take advantage of more dimensions without sacrificing the
> ability to update it.
>
> --
> Thierry Carrez (ttx)
>
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