Add NFS backend for cinder-backup service

Add a Cinder backup profile that uses NFS for the backend.

Related-Bug: #1744174
Change-Id: Ic0adb294aa2e60243f8adaf167bdd75e42c8e20e
(cherry picked from commit 364c76158f)

manifests/profile/base/cinder/backup/nfs.pp

@@ -0,0 +1,36 @@
+# Copyright 2018 Red Hat, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+# == Class: tripleo::profile::base::cinder::backup::nfs
+#
+# Cinder Backup NFS profile for tripleo
+#
+# === Parameters
+#
+# [*step*]
+#   (Optional) The current step in deployment. See tripleo-heat-templates
+#   for more details.
+#   Defaults to hiera('step')
+#
+class tripleo::profile::base::cinder::backup::nfs (
+  $step = Integer(hiera('step')),
+) {
+
+  include ::tripleo::profile::base::cinder::backup
+
+  if $step >= 4 {
+    include ::cinder::backup::nfs
+  }
+
+}

releasenotes/notes/cinder-backup-nfs-backend-59bf771a58af65f6.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - |
+    Add the ability to deploy an NFS backend for the Cinder Backup service.

spec/classes/tripleo_profile_base_cinder_backup_nfs_spec.rb

@@ -0,0 +1,59 @@
+#
+# Copyright (C) 2018 Red Hat, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+
+require 'spec_helper'
+
+describe 'tripleo::profile::base::cinder::backup::nfs' do
+  shared_examples_for 'tripleo::profile::base::cinder::backup::nfs' do
+    let(:pre_condition) do
+      <<-EOF
+      class { '::tripleo::profile::base::cinder': step => #{params[:step]}, oslomsg_rpc_hosts => ['127.0.0.1'] }
+      class { '::tripleo::profile::base::cinder::backup': step => #{params[:step]} }
+      EOF
+    end
+
+    context 'with step less than 4' do
+      let(:params) { { :step => 3 } }
+
+      it 'should do nothing' do
+        is_expected.to contain_class('tripleo::profile::base::cinder::backup::nfs')
+        is_expected.to contain_class('tripleo::profile::base::cinder::backup')
+        is_expected.to_not contain_class('cinder::backup::nfs')
+      end
+    end
+
+    context 'with step 4' do
+      let(:params) { {
+        :step => 4,
+      } }
+
+      it 'should trigger complete configuration' do
+        is_expected.to contain_class('cinder::backup::nfs')
+      end
+    end
+  end
+
+
+  on_supported_os.each do |os, facts|
+    context "on #{os}" do
+      let(:facts) do
+        facts.merge({ :hostname => 'node.example.com' })
+      end
+
+      it_behaves_like 'tripleo::profile::base::cinder::backup::nfs'
+    end
+  end
+end

spec/fixtures/hieradata/default.yaml

@@ -35,6 +35,7 @@ cinder_volume_short_bootstrap_node_name: 'node.example.com'
 cinder_volume_short_node_names:
  - 'c-vol-1'
  - 'c-vol-2'
+cinder::backup::nfs::backup_share: '/mnt/backup'
 cinder::rabbit_password: 'password'
 cinder::keystone::authtoken::password: 'password'
 # gnocchi related items