Ha!!! That is a nice approach...
Let me try that one and I'll get back to you on this.
Thank you.
On Mar 14, 5:50 am, jcbollinger <john.bollin...@stjude.org> wrote:
> On Mar 10, 6:56 pm, Roberto Bouza <bouz...@gmail.com> wrote:
>
>
>
>
>
> > I have an array like this:
>
> > $items = [ "a", "-b" ]
>
> > That should generate something like this (let's say for the Cron
> > resource:
>
> > Cron <| (tag == "a" or title == "a") and (tag != "b" or title != "b") |
>
> > The reason is because we are grouping sets of virtual resources with
> > tags to be realized (as a whole) but sometimes we don't want an item
> > of that group to get realized.
>
> > Like:
>
> > @cron { "a":
> > tag => "a",
>
> > }
>
> > @cron { "b":
> > tag => "a",
>
> > }
>
> > @cron { "c":
> > tag => "a",
>
> > }
>
> > All this is generated dynamically... I can write a function to
> > generate the string like:
>
> > $to_realize = (tag == "a" or title == "a") and (tag != "b" or title !=
> > "b")
>
> > but if I do
>
> > Cron <| $to_realize |>
>
> > It fails... brutally.
>
> > Any ideas?
>
> If you're on 2.6, then this may be a good use case for Puppet's Ruby
> DSL.
>
> Depending on how general the facility needs to be, you may be able to
> implement it in ordinary Puppet DSL with via of defines. By "how
> general", I'm mostly thinking about whether you can live with separate
> definitions behind the scenes for excluding zero items, one item,
> etc.. I think it ought to be possible to hide all such mess behind a
> common front end definition, but I don't think this approach can
> support an arbitrary number of exclusions.
>
> The simplest approach, however, may be to tweak the tags on your
> virtual resources to avoid their realization, instead of using filter
> conditions for the same job. That might not work well for exported
> resources, but it should be fine for simple virtual ones. For
> example,
>
> @cron { "b":
> tag => $realize_me ? {
> "no" => undef,
> default => "b"
> }
>
> }
>
> Or you could even do this:
>
> if $suppress_b != "yes" {
> @cron { "b":
> tag => "b"
> }
>
> }
>
> John
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