Open Stack

On Tue, Nov 13, 2012 at 8:22 PM, Robert Collins
<robertc at robertcollins.net>wrote:

> At the moment its a bit of a black art getting setup so that
> ./run_tests.sh will work in e.g. nova.
>
> (For instance, you need python-dev on Ubuntu, and there isn't, AFAICT,
> any documentation of that other than group-knowledge).
>

Isn't devstack installing those packages?

Doug


>
> I'd like to encode this stuff in a repeatable form, so that one can
> run some hypothetical tool to get setup for developing on nova, or
> glance, or ...; with the knowledge about what is needed localised to
> the particular codebase (so that having pristine environments is
> easy).
>
> As a strawman:
>  - pull the devstack code for interpreting operating system package
> dependencies out of devstack into an oslo tool
>  - create directories under tools/ in-tree that contain appropriate
> lists for the tree, split into three groups:
>    - build (enough to make an egg for redistribution, no more)
>    - test (needed to run tests)
>    - use (needed to use this)
>
> The split of three is needed to deal with circular dependencies should
> they arise (you use build to build eggs for an arbitrary point in the
> cycle, then use test for everything else, and when you circle around,
> use the tested elements for the thing you just built to start with).
>
> Then to get going on (say) nova, you would:
>  install the common oslo tool
>  clone nova
>  run oslo-os-deps install # or whatever we call it
>  ./run_tests.sh
>  $profit
>
> This would also (if desired) allow shrinking this aspect out of devstack.
>
> If this sounds good, I'll look closer at the devstack code to see if
> its sensible to factor it out, or do something similar but parallel.
>
> -Rob
>
> --
> Robert Collins <rbtcollins at hp.com>
> Distinguished Technologist
> HP Cloud Services
>
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