Pass same parameter value to multiple classes using Puppet Hiera

Question

I'm using Hiera with Puppet and I want to pass the same parameter value to multiple classes without repeating it. Right now I've got (in Yaml):

---
class_a::database_server: myoraclebox.example.com
class_b::database_server: myoraclebox.example.com

This works, but how can I specify the server only once and still use Puppet's automatic parameter lookup? (I'd rather not embed an explicit Hiera lookup in my manifest, since that would couple it to Hiera.)

I think Hiera supports [YAML anchors and references](http://en.wikipedia.org/wiki/YAML#References). — Nic, Aug 26 '13 at 05:37

score 2 · Answer 1 · edited Jul 17 '14 at 10:41

2

Using a & YAML anchor should work

database_server: &dbserver myoraclebox.example.com

class_a::database_server: *dbserver
class_b::database_server: *dbserver

edited Jul 17 '14 at 10:41

dgorniak

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answered Jan 17 '14 at 16:42

Chris Montanaro

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score 0 · Answer 2 · answered Dec 02 '14 at 16:27

0

Use the hiera() function to do a lookup as default values:

class class_a($database_server=hiera('database_server')){
}

class class_b($database_server=hiera('database_server')){
}

This uses the full Hiera machinery to do the lookup for you.

answered Dec 02 '14 at 16:27

François Beausoleil

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Pass same parameter value to multiple classes using Puppet Hiera

2 Answers2