Use memcached for token caching in designate authtoken

Use memcached to cache token in designate authtoken, as in-process
cache, which we currently use, was already deprecated[1].

[1] Ied2b88c8cefe5655a88d0c2f334de04e588fa75a

Change-Id: Iaa8e4fb26cf4677fe151c699a3911f02e30f8d32

manifests/profile/base/designate/api.pp

@@ -38,10 +38,10 @@ class tripleo::profile::base::designate::api (
 ) {
 
   include tripleo::profile::base::designate
+  include tripleo::profile::base::designate::authtoken
 
   if ($step >= 3) {
     $listen_uri = normalize_ip_for_uri($listen_ip)
-    include designate::keystone::authtoken
     class { 'designate::api':
       listen => "${listen_uri}:${listen_port}",
     }

manifests/profile/base/designate/authtoken.pp

@@ -0,0 +1,44 @@
+# Copyright 2020 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::designate::authtoken
+#
+# Designate authtoken profile for TripleO
+#
+# [*step*]
+#   (Optional) The current step in deployment. See tripleo-heat-templates
+#   for more details.
+#   Defaults to hiera('step')
+#
+# [*memcached_ips*]
+#   (Optional) Array of ipv4 or ipv6 addresses for memcache.
+#   Defaults to hiera('memcached_node_ips')
+#
+class tripleo::profile::base::designate::authtoken (
+  $step                = Integer(hiera('step')),
+  $memcached_ips       = hiera('memcached_node_ips'),
+) {
+
+  if $step >= 3 {
+    if is_ipv6_address($memcached_ips[0]) {
+      $memcache_servers = prefix(suffix(any2array(normalize_ip_for_uri($memcached_ips)), ':11211'), 'inet6:')
+    } else {
+      $memcache_servers = suffix(any2array(normalize_ip_for_uri($memcached_ips)), ':11211')
+    }
+
+    class { 'designate::keystone::authtoken':
+      memcached_servers => $memcache_servers
+    }
+  }
+}

spec/classes/tripleo_profile_base_designate_authtoken_spec.rb

@@ -0,0 +1,70 @@
+#
+# Copyright (C) 2020 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::designate::authtoken' do
+  shared_examples_for 'tripleo::profile::base::designate::authtoken' do
+    context 'with step less than 3' do
+      let(:params) { {
+        :step => 1,
+      } }
+
+      it {
+        is_expected.to contain_class('tripleo::profile::base::designate::authtoken')
+        is_expected.to_not contain_class('designate::keystone::authtoken')
+      }
+    end
+
+    context 'with step 3' do
+      let(:params) { {
+        :step => 3,
+        :memcached_ips => '127.0.0.1',
+      } }
+
+      it {
+        is_expected.to contain_class('tripleo::profile::base::designate::authtoken')
+        is_expected.to contain_class('designate::keystone::authtoken').with(
+            :memcached_servers => ['127.0.0.1:11211'])
+      }
+    end
+
+    context 'with step 3 with ipv6' do
+      let(:params) { {
+        :step     => 3,
+        :memcached_ips => '::1',
+      } }
+
+      it {
+        is_expected.to contain_class('tripleo::profile::base::designate::authtoken')
+        is_expected.to contain_class('designate::keystone::authtoken').with(
+            :memcached_servers => ['[::1]:11211'])
+      }
+    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::designate::authtoken'
+    end
+  end
+end

spec/fixtures/hieradata/default.yaml

@@ -39,6 +39,9 @@ cinder_volume_short_node_names:
 cinder::backup::nfs::backup_share: '/mnt/backup'
 cinder::rabbit_password: 'password'
 cinder::keystone::authtoken::password: 'password'
+# designate related items
+designate_api_short_bootstrap_node_name: node
+designate::keystone::authtoken::password: 'password'
 # glance related items
 glance_api_short_bootstrap_node_name : node
 glance::api::authtoken::password: 'password'