Add support for [docker_registry] parameters

Change-Id: I95e3a312cd429d7c95c2c734408f03774e552186

manifests/docker_registry.pp

@@ -0,0 +1,25 @@
+# == Class: magnum::docker_registry
+#
+# Setup magnum docker_registry.
+#
+# === Parameters
+#
+# [*swift_region*]
+#   (optional) Region name of Swift.
+#   Defaults to $::os_service_default
+#
+# [*swift_registry_container*]
+#   (optional) Name of the container in Swift which docker registry stores
+#   images in.
+#   Defaults to $::os_service_default
+#
+class magnum::docker_registry (
+  $swift_region             = $::os_service_default,
+  $swift_registry_container = $::os_service_default,
+) {
+
+  magnum_config {
+    'docker_registry/swift_region':             value => $swift_region;
+    'docker_registry/swift_registry_container': value => $swift_registry_container;
+  }
+}

releasenotes/notes/docker_registry-3033836003445561.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - |
+    The new ``magnum::docker_registry`` class has been added.

spec/classes/magnum_docker_registry_spec.rb

@@ -0,0 +1,38 @@
+
+require 'spec_helper'
+
+describe 'magnum::docker_registry' do
+  shared_examples 'magnum::docker_registry' do
+
+    it 'contains default values' do
+      is_expected.to contain_magnum_config('docker_registry/swift_region').with_value('<SERVICE DEFAULT>')
+      is_expected.to contain_magnum_config('docker_registry/swift_registry_container').with_value('<SERVICE DEFAULT>')
+    end
+
+    context 'configure docker_registry with parameters' do
+      let :params do
+        {
+          :swift_region             => 'regionOne',
+          :swift_registry_container => 'docker_registry',
+        }
+      end
+
+      it 'contains overrided values' do
+        is_expected.to contain_magnum_config('docker_registry/swift_region').with_value('regionOne')
+        is_expected.to contain_magnum_config('docker_registry/swift_registry_container').with_value('docker_registry')
+      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_behaves_like 'magnum::docker_registry'
+    end
+  end
+end