Test redis sentinel coordination backend

tooz 6.1.0 introduced support for authentication and SSL for Redis
Sentinel connections. Switch the coordination backend to Sentinel to
test this deployment pattern.

Note that redis storage driver in gnocchi does not yet support SSL and
authentication for Sentinel so it still continues using Redis.

Change-Id: Ie429773523280aa15d2da3eec9bd775364b44333

README.md

@@ -52,7 +52,7 @@ scenario](#all-in-one).
 | nova       |     rbd     |       X     |       X     |     rbd     |      X      |      X       |
 | placement  |      X      |       X     |       X     |      X      |      X      |      X       |
 | neutron    |     ovs     |      ovs    |      ovn    |     ovs     |     ovn     |     ovs      |
-| cinder     |     rbd     |     iscsi   |             |             |    iscsi    |   iscsi      |
+| cinder     |     rbd     |     iscsi   |             |             |    iscsi    |    iscsi     |
 | manila     |             |             |             |   cephfs    |     lvm     |              |
 | ceilometer |      X      |       X     |             |             |             |              |
 | aodh       |      X      |       X     |             |             |             |              |
@@ -84,6 +84,7 @@ scenario](#all-in-one).
 | om rpc     |    rabbit   |    rabbit   |    rabbit   |    rabbit   |    rabbit   |    rabbit    |
 | om notify  |    rabbit   |    rabbit   |    rabbit   |    rabbit   |    rabbit   |    rabbit    |
 | oslo.cache |    redis    |   sentinel  |   memcache  |   memcache  |   memcache  |   memcache   |
+| tooz       |    redis    |   sentinel  |    redis    |    redis    |    redis    |   (redis)    |
 
 When the Jenkins slave is created, the *run_tests.sh* script will be executed.
 This script will execute *install_modules.sh* that prepare /etc/puppet/modules

fixtures/scenario002.pp

@@ -24,10 +24,12 @@ case $facts['os']['family'] {
   'Debian': {
     $ipv6 = false
     $cache_backend = 'memcached'
+    $tooz_backend = 'redis'
   }
   'RedHat': {
     $ipv6 = false
     $cache_backend = 'redis_sentinel'
+    $tooz_backend = 'redis_sentinel'
   }
   default: {
     fail("Unsupported osfamily (${facts['os']['family']})")
@@ -39,6 +41,7 @@ class { 'openstack_integration::config':
   ssl           => $ssl,
   ipv6          => $ipv6,
   cache_backend => $cache_backend,
+  tooz_backend  => $tooz_backend,
 }
 if $ssl {
   include openstack_integration::cacert

manifests/config.pp

@@ -20,12 +20,17 @@
 #   (optional) The oslo.cache backend
 #   Defaults to 'memcached'.
 #
+# [*tooz_backend*]
+#   (optional) The tooz backend
+#   Defaults to 'redis'
+#
 class openstack_integration::config (
   $ssl            = false,
   $ipv6           = false,
   $rpc_backend    = 'rabbit',
   $notify_backend = 'rabbit',
   $cache_backend  = 'memcached',
+  $tooz_backend   = 'redis',
 ) {
 
   include openstack_integration::params
@@ -89,7 +94,7 @@ class openstack_integration::config (
     default          => false,
   }
 
-  $tooz_url = os_url({
+  $redis_url = os_url({
     'scheme'   => 'redis',
     'password' => 'a_big_secret',
     'host'     => $ip_for_url,
@@ -99,6 +104,24 @@ class openstack_integration::config (
     }
   })
 
+  $sentinel_url = os_url({
+    'scheme'   => 'redis',
+    'password' => 'a_big_secret',
+    'host'     => $ip_for_url,
+    'port'     => '26379',
+    'query'    => {
+      'sentinel'          => 'mymaster',
+      'sentinel_password' => 'a_big_secret',
+      'ssl'               => $ssl,
+      'sentinel_ssl'      => $ssl,
+    }
+  })
+
+  $tooz_url = $tooz_backend ? {
+    'redis_sentinel' => $sentinel_url,
+    default          => $redis_url,
+  }
+
   $ovn_nb_connection = "${ovn_proto}:${ip_for_url}:6641"
   $ovn_sb_connection = "${ovn_proto}:${ip_for_url}:6642"
 }

manifests/gnocchi.pp

@@ -118,7 +118,7 @@ class openstack_integration::gnocchi (
         swift_key          => 'a_big_secret',
       }
       class { 'gnocchi::storage::incoming::redis':
-        redis_url => $::openstack_integration::config::tooz_url,
+        redis_url => $::openstack_integration::config::redis_url,
       }
     }
     'file': {