[openstack-dev] [ironic] usage of ironic-lib

Pavlo Shchelokovskyy pshchelokovskyy at mirantis.com
Mon May 16 15:25:59 UTC 2016


I'd like to point that ironic-lib is already used outside of Ironic tree -
for the third-party deployment drivers, e.g this fuel-agent based one [0].


Best regards,

Dr. Pavlo Shchelokovskyy
Senior Software Engineer
Mirantis Inc

On Mon, May 16, 2016 at 6:14 PM, Lucas Alvares Gomes <lucasagomes at gmail.com>

> Hi,
> On Mon, May 16, 2016 at 3:56 PM, Sam Betts (sambetts)
> <sambetts at cisco.com> wrote:
> > I personally disagree with saying that if we wanted it make it usable by
> > projects other than ones in the Ironic umbrella it should go into oslo. I
> > think that non-ironic projects directly related to Ironic such as out of
> > tree drivers etc, should be able to utilise the code placed into
> > ironic-lib.
> >
> > Neutron are doing a very similar thing for all their drivers/extensions
> > they have broken out over the last 2 cycles,
> >
> http://specs.openstack.org/openstack/neutron-specs/specs/liberty/neutron-li
> > b.html.
> >
> > Making ironic-lib available to out of tree drivers etc also puts us into
> a
> > good position to begin the work to stabilise things like the driver API.
> > Neutron is making the rule that out of tree drivers shouldn¹t
> > inherit/import anything from the neutron core code base, only
> neutron-lib,
> > they are doing this to provide a stable interface that shouldn¹t be
> broken
> > by changes to neutron core. I think we could do the same, with in-tree
> > drivers dog-fooding the driver api we provide in ironic-lib.
> >
> I'm personally fine with that goal, if we as a community agree that in
> the soon future of ironic-lib should target a broader audience. The
> thing is that I don't think the lib was conceived with that in mind,
> we started small (baby-steps) sharing partitioning code from Ironic
> and Ironic-Python-Agent, now that it's done we can start working
> towards making it a more generic library.
> What I don't think we should do is say that the library's _right now_
> ready for it, the interfaces we have at the moment should not be
> considered stable, Ironic is very opinionated in many aspects
> (specially when partitioning the disk), there's no documentation, no
> release notes, etc...
> So, if agreed, let's do it, but let's do it properly.
> Cheers,
> Lucas
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