Thanks Chad ...
I understand it from the syntax point of view, but my point is more of a
conceptual question in how to apply Craig's concepts using hiera with
parasitized classes ... in that case, the node definition using hiera
declares one (and only one role). The profile would define the technology
stack with all the modules.
That's what Craig's article suggests (he doesn't mention hiera in the
article). A role could specify 1+ profiles. So far, great.
The thing is, in the node definition, using hiera, I'd break what they're
proposing, because I'm actually not totally separating and externalizing
the data. The yaml file would be (the way I see).
x.y.z.w.yaml:
role::zabbix20::server::dc2
a.b.c.d.yaml:
role::zabbix20::server::dc1
Now, what I expected to have, for example, is the bind_ip parameter passed
here in hiera, not in the profile definition.
I hope I'm being clear ... :-)
-frederiko
On Tue, Sep 3, 2013 at 2:19 PM, Chad Huneycutt <chad.huneyc...@gmail.com>wrote:
> LIke this:
>
> class profile::zabbix20::server (
> bind_ip,
> ...
> ) {
> class { '::zabbix20::server':
> bind_ip => $bind_ip,
> ...
> }
> }
>
> Then your hieradata would set
>
> in a.b.c.d.yaml:
> profile::zabbix20::server::bind_ip: 1.2.2.3
>
> in x.y.z.w.yaml:
> profile::zabbix20::server::bind_ip: 1.2.3.4
>
> That way you have a single profile for all datacenters.
>
> - Chad
>
>
> On Tue, Sep 3, 2013 at 11:49 AM, Frederiko Costa <freder...@gmail.com>
> wrote:
> > Excellent.. thanks!
> >
> > And now sorry for the long email... hopefully I'm clear enough.
> >
> > I'd also to expose one example that I have here in my company. I'm not
> too
> > confident of how we setup roles and profiles, specially when it comes to
> add
> > hiera into the game.
> >
> > Say we have a module called zabbix20::agent. The configuration file will
> be
> > generated using erb templated with data coming from parametized classes.
> So
> > far, it looks good. Data separation, modules look portable, etc.
> >
> > As far as I understood going through the article is that you define the
> > technology stack in the profile, and the role as collection of profiles.
> > Well, in that case I'd say I would have something similar to this:
> >
> > class profile::zabbix20::server {
> > class { '::zabbix20::server' :
> > bind_ip => "1.2.2.3",
> > ...
> > }
> > }
> >
> > and then it would probably go to a base profile (profile::base) and
> > inherited by a base role. That fits perfectly with single site scenario.
> Say
> > you now have multiple data centers with different zabbix servers on each.
> > The way I understood ...
> >
> > class profile::zabbix20::server::dc1 {
> > class { '::zabbix20::server' :
> > bind_ip => "1.2.2.3",
> > ...
> > }
> > }
> >
> > class profile::zabbix20::server::dc2 {
> > class { '::zabbix20::server' :
> > bind_ip => "1.2.3.4",
> > ...
> > }
> >
> > include httpd
> > ...
> > }
> >
> > then the roles:
> > class role::zabbix20::server::dc1 {
> > include profile::zabbix20::server::dc1
> > }
> >
> > and the nodes ...
> >
> > node 'a.b.c.d' { include include profile::zabbix20::server::dc1 }
> > node 'x.y.z.w' { include include profile::zabbix20::server::dc2 }
> >
> > That being said ... How would I actually add hiera into the game? I
> don't a
> > straightforward way to use hiera and benefit the data separation. I have
> to
> > include the business logic in the profile. How would I actually do that
> > using hiera? Can't see a direct way.
> >
> > The other discussion I had with my co-worker is ... they actually created
> > two modules: roles and profiles. If I want to change, I have to actually
> > change the modules. Isn't it desirable to have these out of the
> modulespath?
> > I don't see why we have to do this way if are trying to abstract things
> and
> > avoiding touching modules whenever we can.
> >
> > Thanks in advance.
> >
> > On Friday, August 30, 2013 4:09:39 PM UTC-7, Ramin K wrote:
> >>
> >> On 8/30/2013 3:48 PM, Frederiko Costa wrote:
> >> > Hi everyone,
> >> >
> >> > Do you guys know any article/doc talking about the use of
> roles/profiles
> >> > approach with hiera?
> >> >
> >> > I'm particularly interested in how to organize the manifests when
> having
> >> > multiple data centers, parametized classes and wants to use hiera.
> >> >
> >> > Being even more specific, how to organize the code using the Craig's
> >> > article (http://www.craigdunn.org/2012/05/239/) and use hiera to
> >> > provide node specific data.
> >> >
> >> > thank you,
> >> > -fred
> >>
> >> Couple of links on the subject that I like.
> >>
> >> Craig Dunn at Puppet Camp Feb 2013 which is a good addendum to his
> >> original articles, http://www.slideshare.net/PuppetLabs/roles-talk
> >>
> >> Carla Souza's Puppet Conf talk on managing Hiera values. IMO this will
> >> become a very influential presentation over the next year as generally
> >> available tooling catches up to the ideas presented. I'm surprised there
> >> hasn't been more discussion about it.
> >> http://carlasouza.com/puppetconf13/#/slide1
> >>
> >> Hunner's github repo for his Role/Profile session at Puppet Conf.
> >> https://github.com/hunner/roles_and_profiles
> >>
> >> My example of using role/profile. I skipped over most of the design and
> >> philosophy which Craig covered quite well and dove straight into what it
> >> might looks like with a complicated set of data in a real world
> >> application.
> >>
> >>
> https://ask.puppetlabs.com/question/1655/an-end-to-end-roleprofile-example-using-hiera/
> >>
> >> Ramin
> >>
> >>
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>
> --
> Chad M. Huneycutt
>
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