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Re: [rdo-list] Packstack refactor and future ideas



----- Original Message ----- 

> From: rdo-list-bounces redhat com <rdo-list-bounces redhat com> on behalf of
> Javier Pena <javier pena redhat com>
> Sent: Friday, June 17, 2016 10:45 AM
> To: rdo-list
> Cc: alan pevec
> Subject: Re: [rdo-list] Packstack refactor and future ideas

> ----- Original Message -----
> > > We could take an easier way and assume we only have 3 roles, as in the
> > > current refactored code: controller, network, compute. The logic would
> > > then be:
> > > - By default we install everything, so all in one
> > > - If our host is not CONFIG_CONTROLLER_HOST but is part of
> > > CONFIG_NETWORK_HOSTS, we apply the network manifest
> > > - Same as above if our host is part of CONFIG_COMPUTE_HOSTS
> > >
> > > Of course, the last two options would assume a first server is installed
> > > as
> > > controller.
> > >
> > > This would allow us to reuse the same answer file on all runs (one per
> > > host
> > > as you proposed), eliminate the ssh code as we are always running
> > > locally,
> > > and make some assumptions in the python code, like expecting OPM to be
> > > deployed and such. A contributed ansible wrapper to automate the runs
> > > would be straightforward to create.
> > >
> > > What do you think? Would it be worth the effort?
> >
> > +2 I like that proposal a lot! An ansible wrapper is then just an
> > example playbook in docs but could be done w/o ansible as well,
> > manually or using some other remote execution tooling of user's
> > choice.
> >
> Now that the phase 1 refactor is under review and passing CI, I think it's
> time to come to a conclusion on this.
> This option looks like the best compromise between keeping it simple and
> dropping the least possible amount of features. So unless someone has a
> better idea, I'll work on that as soon as the current review is merged.
>
> Would it be possible :-
>
> - By default we install everything, so all in one
> - If our host is not CONFIG_CONTROLLER_HOST but is part of
> CONFIG_NETWORK_HOSTS, we apply the network manifest
> - Same as above if our host is part of CONFIG_COMPUTE_HOSTS
> - If our host is not CONFIG_CONTROLLER_HOST but is part of
> CONFIG_STORAGE_HOSTS , we apply the storage manifest
>
> Just one more role. May we have 4 roles ?

This is a tricky one. There used to be support for separate CONFIG_STORAGE_HOSTS, but I think it has been removed (or at least not tested for quite a long time).

This would need to be a follow-up review, if it is finally decided to do so.

Regards,
Javier 

> Thanks
> Boris.

> Regards,
> Javier

> > Alan
> >

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