From 0b60a31cc9cb5c62b23940d7e8f0fe104b4ce804 Mon Sep 17 00:00:00 2001
From: Ben Vincent <ben@unkin.net>
Date: Wed, 24 Dec 2025 21:30:19 +1100
Subject: [PATCH] chore: testing a simple data_hash hiera plugin

testing testing ....
---
 hiera.yaml                                       |  2 ++
 .../functions/custom_hiera_plugin/data_hash.rb   | 16 ++++++++++++++++
 site/profiles/manifests/base.pp                  |  9 +++++++++
 3 files changed, 27 insertions(+)
 create mode 100644 modules/custom_hiera_plugin/lib/puppet/functions/custom_hiera_plugin/data_hash.rb

diff --git a/hiera.yaml b/hiera.yaml
index d46d2ee..7a1132e 100644
--- a/hiera.yaml
+++ b/hiera.yaml
@@ -4,6 +4,8 @@ defaults:
   datadir: "hieradata"
   data_hash: "yaml_data"
 hierarchy:
+  - name: Custom Hiera Plugin
+    data_hash: custom_hiera_plugin::data_hash
   - name: Consolidated Data
     paths:
       - "nodes/%{trusted.certname}.yaml"
diff --git a/modules/custom_hiera_plugin/lib/puppet/functions/custom_hiera_plugin/data_hash.rb b/modules/custom_hiera_plugin/lib/puppet/functions/custom_hiera_plugin/data_hash.rb
new file mode 100644
index 0000000..20200f5
--- /dev/null
+++ b/modules/custom_hiera_plugin/lib/puppet/functions/custom_hiera_plugin/data_hash.rb
@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+require 'socket'
+
+# Custom Hiera Plugin
+# This plugin returns static data for testing purposes
+Puppet::Functions.create_function(:'custom_hiera_plugin::data_hash') do
+  # :reek:UtilityFunction
+  def data_hash(_options, _context)
+    # Return a simple hash with the required key-value pairs
+    {
+      'custom_hiera_plugin::var1' => 'foo',
+      'custom_hiera_plugin::hostname' => Socket.gethostname
+    }
+  end
+end
diff --git a/site/profiles/manifests/base.pp b/site/profiles/manifests/base.pp
index f9d2f80..87f928b 100644
--- a/site/profiles/manifests/base.pp
+++ b/site/profiles/manifests/base.pp
@@ -1,6 +1,15 @@
 # this is the base class, which will be used by all servers
 class profiles::base () {
 
+  # Test custom hiera plugin
+  notify { 'custom_hiera_plugin_test':
+    message => "Custom hiera plugin value: ${lookup('custom_hiera_plugin::var1')}",
+  }
+
+  notify { 'custom_hiera_plugin_hostname':
+    message => "Custom hiera plugin hostname: ${lookup('custom_hiera_plugin::hostname')}",
+  }
+
   # run a limited set of classes on the first run aimed at bootstrapping the new node
   if $facts['firstrun'] {
     include profiles::firstrun::init