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Glancing at the code[0], it looks like cotyledon has this built in already.
Though, you'll probably want to pass in reload_method='mutate' like the
oslo docs suggest[1].

[0]
https://github.com/sileht/cotyledon/blob/master/cotyledon/oslo_config_glue.py#L68
[1]
https://docs.openstack.org/oslo.config/latest/reference/mutable.html#calling-mutate-config-files



// jim

On Tue, Mar 27, 2018 at 12:20 PM, Michael Johnson <johnsomor at gmail.com>
wrote:

> Does anyone know how this will work with services that are using
> cotyledon instead of oslo.service (for eliminating eventlet)?
>
> Michael
>
> On Mon, Mar 26, 2018 at 5:35 AM, Sławomir Kapłoński <slawek at kaplonski.pl>
> wrote:
> > Hi,
> >
> >
> >> Wiadomość napisana przez ChangBo Guo <glongwave at gmail.com> w dniu
> 26.03.2018, o godz. 14:15:
> >>
> >>
> >> 2018-03-22 16:12 GMT+08:00 Sławomir Kapłoński <slawek at kaplonski.pl>:
> >> Hi,
> >>
> >> I took care of implementation of [1] in Neutron and I have couple
> questions to about this goal.
> >>
> >> 1. Should we only change "restart_method" to mutate as is described in
> [2] ? I did already something like that in [3] - is it what is expected?
> >>
> >>      Yes , let's the only  thing.  we need test if that if it works .
> >
> > Ok, so please take a look at my patch for neutron if that is what we
> should do :)
> >
> >>
> >> 2. How I can check if this change is fine and config option are mutable
> exactly? For now when I change any config option for any of neutron agents
> and send SIGHUP to it it is in fact "restarted" and config is reloaded even
> with this old restart method.
> >>
> >>     good question, we indeed thought this question when we proposal
> the goal.  But It seems difficult to test  that consuming projects like
> Neutron automatically.
> >
> > I was asking rather about some manual test instead of automatic one.
> >
> >>
> >> 3. Should we add any automatic tests for such change also? Any examples
> of such tests in other projects maybe?
> >>      There is no example for tests now, we only have some unit tests
> in oslo.service .
> >>
> >> [1] https://governance.openstack.org/tc/goals/rocky/enable-
> mutable-configuration.html
> >> [2] https://docs.openstack.org/oslo.config/latest/reference/
> mutable.html
> >> [3] https://review.openstack.org/#/c/554259/
> >>
> >> —
> >> Best regards
> >> Slawek Kaplonski
> >> slawek at kaplonski.pl
> >>
> >>
> >> ____________________________________________________________
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> >>
> >>
> >>
> >> --
> >> ChangBo Guo(gcb)
> >> Community Director @EasyStack
> >> ____________________________________________________________
> ______________
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> >
> > —
> > Best regards
> > Slawek Kaplonski
> > slawek at kaplonski.pl
> >
> >
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