[openstack-dev] [Fuel] Wildcards instead of
Bogdan Dobrelya
bdobrelia at mirantis.com
Mon Feb 22 09:33:48 UTC 2016
On 22.02.2016 10:28, Kyrylo Galanov wrote:
> Would namespaces be compatible with existing plugins?
It should be, if the default namespace will be "core"
>
> On Mon, Feb 22, 2016 at 7:33 PM, Bogdan Dobrelya <bdobrelia at mirantis.com
> <mailto:bdobrelia at mirantis.com>> wrote:
>
> On 20.02.2016 10:29, Evgeniy L wrote:
> > Hi,
> >
> > +1 to Igor, plugin developer should be able to granularly define what
> > she/he wants to be executed on the node, without assumptions from our side.
> >
> > `exclude` - field doesn't look like a good solution to me, it will be
> > hard to support and migrate plugins to newer version OpenStack release.
> >
> > I would suggest to solve it differently, lets define namespaces, which
> > we will be able to use to identify tasks from core, with prefix
> > "std:role-name" or "core:role-name", also in the same way plugin or a
> > group of plugins will be able to define their namespaces "lma:role-name"
> > or "detached:keystone", so for library tasks you will have something
> > like that:
> >
> > groups: ['/std:.*/']
> >
> > or
> >
> > groups: ['/core:.*/']
> >
> > It's natural to have such thing, because it's similar to what is in
> > Python/Ruby (modules) or in C++ (namespaces).
> >
>
> Big +1 to namespaces
>
> > Thanks,
> >
> > On Fri, Feb 19, 2016 at 6:02 PM, Aleksandr Didenko
> > <adidenko at mirantis.com <mailto:adidenko at mirantis.com>
> <mailto:adidenko at mirantis.com <mailto:adidenko at mirantis.com>>> wrote:
> >
> > > I vote to abandon it. Let's do not break existing plugins, and do not
> > > add *undo* tasks for plugin developers. If they want to configure
> > > network, they'll ask it explicitly.
> >
> > +1 to this gentleman. It's safe to add wildcards only to tasks that
> > were moved from pre/post deployment stages, which were executed
> > everywhere anyway.
> >
> > Regards,
> > Alex
> >
> > On Fri, Feb 19, 2016 at 3:22 PM, Bulat Gaifullin
> > <bgaifullin at mirantis.com <mailto:bgaifullin at mirantis.com>
> <mailto:bgaifullin at mirantis.com <mailto:bgaifullin at mirantis.com>>>
> wrote:
> >
> >
> > > On 19 Feb 2016, at 17:09, Igor Kalnitsky
> > <ikalnitsky at mirantis.com <mailto:ikalnitsky at mirantis.com>
> <mailto:ikalnitsky at mirantis.com <mailto:ikalnitsky at mirantis.com>>>
> wrote:
> > >
> > > Kyrylo G. wrote:
> > >> So who is voting for the path to be abandoned?
> > >
> > > I vote to abandon it. Let's do not break existing
> plugins, and
> > do not
> > > add *undo* tasks for plugin developers. If they want to
> configure
> > > network, they'll ask it explicitly.
> > >
> > >
> > > Kyrylo G. wrote:
> > >> By the way, there is already a task running by the
> wildcard:
> > >>
> >
> https://github.com/openstack/fuel-library/blob/master/deployment/puppet/osnailyfacter/modular/fuel_pkgs/tasks.yaml#L4
> > >
> > > Yes, exactly, but the thing is that our original task
> for setuping
> > > repos was executed on all nodes before, including ones
> provided by
> > > plugins. Making it executing on core nodes only may break
> > plugins that
> > > rely on it. So generally, it's about backward compatibility.
> > >
> > >
> > > Bulat G. wrote:
> > >> This tasks should run on all nodes and it does not matter,
> > the node
> > >> has role from plugin or core-role.
> > >
> > > Nope, they shouldn't. Why do I need to install the following
> > packages
> > >
> > > 'screen',
> > > 'tmux',
> > > 'htop',
> > > 'tcpdump',
> > > 'strace',
> > > 'fuel-misc',
> > > 'man-db',
> > > 'fuel-misc',
> > > 'fuel-ha’
> > >
> > It is big problem?
> >
> > > if I have no plans to use them? As a deployer engineer,
> I'd prefer to
> > > keep my role as clear as possible, and decide what to
> install in my
> > > own way.
> >
> > IMO: The plugin developer wants to install additional
> > applications to extend functionality, It do not want configure
> > low-level things, like specify some banch of task for
> configure
> > network, configure repositories etc.
> > How can we manage new node if network is not configured or
> > fuel-agent is not installed?
> >
> > >
> > >
> > > On Fri, Feb 19, 2016 at 1:06 PM, Bulat Gaifullin
> > > <bgaifullin at mirantis.com <mailto:bgaifullin at mirantis.com>
> <mailto:bgaifullin at mirantis.com <mailto:bgaifullin at mirantis.com>>>
> wrote:
> > >> +1 to use wildcards for common tasks like netconfig and setup
> > repositories.
> > >> This tasks should run on all nodes and it does not matter,
> > the node has role
> > >> from plugin or core-role.
> > >> In my opinion we should one approach for basic configuration
> > of node.
> > >>
> > >> Regards,
> > >> Bulat Gaifullin
> > >> Mirantis Inc.
> > >>
> > >>
> > >>
> > >> On 19 Feb 2016, at 13:36, Kyrylo Galanov
> > <kgalanov at mirantis.com <mailto:kgalanov at mirantis.com>
> <mailto:kgalanov at mirantis.com <mailto:kgalanov at mirantis.com>>> wrote:
> > >>
> > >> Hi,
> > >>
> > >> So who is voting for the path to be abandoned?
> > >>
> > >> By the way, there is already a task running by the wildcard:
> > >>
> > https://github.com/openstack/fuel-library/blob/master/deployment/puppet/osnailyfacter/modular/fuel_pkgs/tasks.yaml#L4
> > >> However, it this case it might work with plugins.
> > >>
> > >> Best regards,
> > >> Kyrylo
> > >>
> > >> On Fri, Feb 19, 2016 at 1:09 AM, Igor Kalnitsky
> > <ikalnitsky at mirantis.com <mailto:ikalnitsky at mirantis.com>
> <mailto:ikalnitsky at mirantis.com <mailto:ikalnitsky at mirantis.com>>>
> > >> wrote:
> > >>>
> > >>> Hey Kyrylo,
> > >>>
> > >>> As it was mentioned in the review: you're about to break
> > roles defined
> > >>> by plugins. That's not good move, I believe.
> > >>>
> > >>> Regarding 'exclude' directive, I have no idea what you're
> > talking
> > >>> about. We don't support it now, and, anyway, there should be no
> > >>> difference between roles defined by plugins and core roles.
> > >>>
> > >>> - Igor
> > >>>
> > >>> On Thu, Feb 18, 2016 at 12:53 PM, Kyrylo Galanov
> > <kgalanov at mirantis.com <mailto:kgalanov at mirantis.com>
> <mailto:kgalanov at mirantis.com <mailto:kgalanov at mirantis.com>>>
> > >>> wrote:
> > >>>> Hello,
> > >>>>
> > >>>> We are about to switch to wildcards instead of listing all
> > groups in
> > >>>> tasks
> > >>>> explicitly [0].
> > >>>> This change must make deployment process more obvious for
> > developers.
> > >>>> However, it might lead to confusion when new groups are
> > added either by
> > >>>> plugin or fuel team in future.
> > >>>>
> > >>>> As mention by Bogdan, it is possible to use 'exclude'
> > directive to
> > >>>> mitigate
> > >>>> the risk.
> > >>>> Any thoughts on the topic are appreciated.
> > >>>>
> > >>>>
> > >>>> [0] https://review.openstack.org/#/c/273596/
> > >>>>
> > >>>> Best regards,
> > >>>> Kyrylo
> > >>>>
> > >>>>
> > >>>>
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> --
> Best regards,
> Bogdan Dobrelya,
> Irc #bogdando
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--
Best regards,
Bogdan Dobrelya,
Irc #bogdando
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