Use memcached for token caching in heat authtoken

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

[1] Ied2b88c8cefe5655a88d0c2f334de04e588fa75a

Change-Id: I03026900a8727efc0d5b1d6a73426e96f75749d1

manifests/profile/base/heat.pp

@@ -96,6 +96,9 @@ class tripleo::profile::base::heat (
   $oslomsg_notify_username = hiera('oslo_messaging_notify_user_name', 'guest'),
   $oslomsg_notify_use_ssl  = hiera('oslo_messaging_notify_use_ssl', '0'),
 ) {
+
+  include ::tripleo::profile::base::heat::authtoken
+
   # Domain resources will be created at step5 on the node running keystone.pp
   # configure heat.conf at step3 and 4 but actually create the domain later.
   if $step >= 3 {
@@ -136,4 +139,3 @@ class tripleo::profile::base::heat (
     }
   }
 }
-

manifests/profile/base/heat/authtoken.pp

@@ -0,0 +1,44 @@
+# Copyright 2019 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::heat::authtoken
+#
+# Heat 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::heat::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 { '::heat::keystone::authtoken':
+      memcached_servers => $memcache_servers
+    }
+  }
+}

spec/classes/tripleo_profile_base_heat_authtoken_spec.rb

@@ -0,0 +1,70 @@
+#
+# Copyright (C) 2019 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::heat::authtoken' do
+  shared_examples_for 'tripleo::profile::base::heat::authtoken' do
+    context 'with step less than 3' do
+      let(:params) { {
+        :step => 1,
+      } }
+
+      it {
+        is_expected.to contain_class('tripleo::profile::base::heat::authtoken')
+        is_expected.to_not contain_class('heat::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::heat::authtoken')
+        is_expected.to contain_class('heat::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::heat::authtoken')
+        is_expected.to contain_class('heat::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::heat::authtoken'
+    end
+  end
+end

spec/fixtures/hieradata/default.yaml

@@ -47,7 +47,9 @@ gnocchi::storage::ceph::ceph_secret: 'password'
 # haproxy related items
 mysql_enabled: true
 controller_node_ips: '10.1.0.1,10.1.0.2'
-# mysql related
+# heat related items
+heat::keystone::authtoken::password: 'password'
+# mysql related items
 mysql_short_bootstrap_node_name: node
 # manila related items
 manila::rabbit_password: 'password'