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Contents
require 'hiera_puppet'
module Puppet::Parser::Functions
newfunction(:hiera_include, :arity => -2, :doc => "Assigns classes to a node
using an array merge lookup that retrieves the value for a user-specified key
from a Hiera data source.
To use `hiera_include`, the following configuration is required:
- A key name to use for classes, e.g. `classes`.
- A line in the puppet `sites.pp` file (e.g. `/etc/puppet/manifests/sites.pp`)
reading `hiera_include('classes')`. Note that this line must be outside any node
definition and below any top-scope variables in use for Hiera lookups.
- Class keys in the appropriate data sources. In a data source keyed to a node's role,
one might have:
---
classes:
- apache
- apache::passenger
In addition to the required `key` argument, `hiera_include` accepts two additional
arguments:
- a `default` argument in the second position, providing an array to be returned
in the absence of matches to the `key` argument
- an `override` argument in the third position, providing a data source to consult
for matching values, even if it would not ordinarily be part of the matched hierarchy.
If Hiera doesn't find a matching key in the named override data source, it will continue
to search through the rest of the hierarchy.
More thorough examples of `hiera_include` are available at:
<http://docs.puppetlabs.com/hiera/1/puppet.html#hiera-lookup-functions>
") do |*args|
key, default, override = HieraPuppet.parse_args(args)
if answer = HieraPuppet.lookup(key, default, self, override, :array)
method = Puppet::Parser::Functions.function(:include)
send(method, [answer])
else
raise Puppet::ParseError, "Could not find data item #{key}"
end
end
end
Version data entries
58 entries across 58 versions & 2 rubygems