Support [os_brick] lock_path

Recent os-brick supports supports configuration os-brick specific
lock_path. This adds the new class to manage the [os_brick] lock_path
option.

Depends-on: https://review.opendev.org/865771
Change-Id: Ib3b914b83bb61de1592553f7b43d0eace7c26903

manifests/os_brick.pp

@@ -0,0 +1,18 @@
+# == Class: nova::os_brick
+#
+# Configure os_brick options
+#
+# === Parameters:
+#
+# [*lock_path*]
+#   (Optional) Directory to use for os-brick lock files.
+#   Defaults to $facts['os_service_default']
+#
+class nova::os_brick(
+  $lock_path = $facts['os_service_default'],
+) {
+
+  oslo::os_brick { 'nova_config':
+    lock_path => $lock_path
+  }
+}

releasenotes/notes/os_brick-d7164dfcb0319654.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    The new ``nova::os_brick`` class has been added. This class manages
+    the ``[os_brick]`` options.

spec/classes/nova_os_brick_spec.rb

@@ -0,0 +1,41 @@
+require 'spec_helper'
+
+describe 'nova::os_brick' do
+
+  shared_examples 'nova::os_brick' do
+
+    context 'with defaults' do
+      it 'configures the default values' do
+        is_expected.to contain_oslo__os_brick('nova_config').with(
+          :lock_path => '<SERVICE DEFAULT>',
+        )
+      end
+    end
+
+    context 'with parameters overridden' do
+      let :params do
+        {
+          :lock_path => '/var/lib/openstack/lock'
+        }
+      end
+
+      it 'configures the overridden values' do
+        is_expected.to contain_oslo__os_brick('nova_config').with(
+          :lock_path => '/var/lib/openstack/lock',
+        )
+      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
+
+      include_examples 'nova::os_brick'
+    end
+  end
+end