Allow configuring the new notifier settings

This change adds four new parameters for the new notifier added in the
Mistral Rocky release.

Change-Id: I005a49d21842661e944f45d44f08bf6bcec0a2a5

manifests/notifier.pp

@@ -0,0 +1,46 @@
+# == Class: mistral::notifier
+#
+# Configure the mistral notifier
+#
+# === Parameters
+#
+# [*type*]
+#   Type of notifier. Use local to run the notifier within the
+#   engine server. Use remote if the notifier is launched as
+#   a separate server to process events.
+#   (string value)
+#   Defaults to $::os_service_default.
+# [*host*]
+#   Name of the notifier node. This can be an opaque
+#   identifier. It is not necessarily a hostname,
+#   FQDN, or IP address.
+#   (string value)
+#   Defaults to $::os_service_default.
+# [*topic*]
+#   The message topic that the notifier server listens on.
+#   (string value)
+#   Defaults to $::os_service_default.
+# [*notify_publishers*]
+#   List of publishers to publish notification.
+#   Note: This maps to the mistral config option `notify` but this is reserved
+#   in Puppet.
+#   (list of dicts)
+#   Defaults to $::os_service_default.
+
+class mistral::notifier(
+  $type               = $::os_service_default,
+  $host               = $::os_service_default,
+  $topic              = $::os_service_default,
+  $notify_publishers  = $::os_service_default,
+) {
+
+  include ::mistral::deps
+  include ::mistral::params
+
+  mistral_config {
+    'notifier/type':             value => $type;
+    'notifier/host':             value => $host;
+    'notifier/topic':            value => $topic;
+    'notifier/notify':           value => $notify_publishers;
+  }
+}

releasenotes/notes/add-notfier-support-1e0645068547f64f.yaml

@@ -0,0 +1,3 @@
+---
+features:
+  - Add new parameters that allow configuring notifier settings.

spec/classes/mistral_notifier_spec.rb

@@ -0,0 +1,43 @@
+require 'spec_helper'
+
+describe 'mistral::notifier' do
+
+  shared_examples_for 'mistral notifier' do
+    it 'configure notifier default params' do
+      is_expected.to contain_mistral_config('notifier/type').with_value('<SERVICE DEFAULT>')
+      is_expected.to contain_mistral_config('notifier/host').with_value('<SERVICE DEFAULT>')
+      is_expected.to contain_mistral_config('notifier/topic').with_value('<SERVICE DEFAULT>')
+      is_expected.to contain_mistral_config('notifier/notify').with_value('<SERVICE DEFAULT>')
+    end
+
+    context 'with specific parameters' do
+      let :params do
+        { :type => "remote",
+          :host => "localhost",
+          :topic => "mistral-event-stream",
+          :notify_publishers => "[{'type': 'noop'}]",
+        }
+      end
+
+      it 'configure notifier params' do
+        is_expected.to contain_mistral_config('notifier/type').with_value('remote')
+        is_expected.to contain_mistral_config('notifier/host').with_value('localhost')
+        is_expected.to contain_mistral_config('notifier/topic').with_value('mistral-event-stream')
+        is_expected.to contain_mistral_config('notifier/notify').with_value("[{'type': 'noop'}]")
+      end
+    end
+  end
+
+  on_supported_os({
+    :supported_os   => OSDefaults.get_supported_os
+  }).each do |os,facts|
+    context "on #{os}" do
+      let (:facts) do
+        facts.merge!(OSDefaults.get_facts())
+      end
+
+      it_configures 'mistral notifier'
+    end
+  end
+
+end