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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/puppetlabs/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 The function can be called in one of three ways: 1. Using 1 to 3 arguments where the arguments are: 'key' [String] Required The key to lookup. 'default` [Any] Optional A value to return when there's no match for `key`. Optional `override` [Any] Optional An 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. 2. Using a 'key' and an optional 'override' parameter like in #1 but with a block to provide the default value. The block is called with one parameter (the key) and should return the array to be used in the subsequent call to include. 3. Like #1 but with all arguments passed in an array. More thorough examples of `hiera_include` are available at: <http://docs.puppetlabs.com/hiera/1/puppet.html#hiera-lookup-functions> ") do |*args| function_fail(["hiera_include() has been converted to 4x API"]) end end
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21 entries across 21 versions & 1 rubygems