Enable mongodb replicaset

This patch allows HA on mongodb for ceilometer use.

manifests/database/nosql.pp

@@ -29,10 +29,20 @@
 #   http://docs.mongodb.org/manual/reference/configuration-options/#nojournal
 #   Defaults to false
 #
+# [*replset_members*]
+#   (optional) Ceilometer Replica set members
+#   Default value in params
+#
+# [*mongo_primary*]
+#   (optional) MongoDB replicaset primary hostname
+#   Default value in params
+#
 
 class cloud::database::nosql(
-  $bind_ip   = $os_params::internal_netif_ip,
-  $nojournal = false,
+  $bind_ip         = $os_params::internal_netif_ip,
+  $nojournal       = false,
+  $replset_members = $os_params::mongo_nodes,
+  $mongo_primary   = $os_params::mongo_primary
 ) {
 
   # bind_ip should be an array
@@ -49,6 +59,28 @@ class cloud::database::nosql(
   class { 'mongodb':
     bind_ip   => $bind_ip_real,
     nojournal => $nojournal,
+    replset   => 'ceilometer',
+  }
+
+  exec {'check_mongodb' :
+    command   => "/usr/bin/mongo ${bind_ip}:27017",
+    logoutput => false,
+    tries     => 60,
+    try_sleep => 5,
+    require   => Service['mongodb'],
+  }
+
+  if $::hostname == $mongo_primary and !empty($replset_members) {
+
+    mongodb_replset{'ceilometer':
+      members => $replset_members,
+      before  => Anchor['mongodb setup done'],
+    }
+
+  }
+
+  anchor {'mongodb setup done' :
+    require => Exec['check_mongodb'],
   }
 
 }

manifests/telemetry/server.pp

@@ -21,25 +21,27 @@ class cloud::telemetry::server(
   $ks_keystone_internal_proto     = $os_params::ks_keystone_internal_proto,
   $ks_ceilometer_internal_port    = $os_params::ks_ceilometer_internal_port,
   $ks_ceilometer_password         = $os_params::ks_ceilometer_password,
-  $ceilometer_database_connection = $os_params::ceilometer_database_connection,
   $api_eth                        = $os_params::api_eth,
+  $mongo_nodes                    = $os_params::mongo_nodes,
+  $mongo_primary                  = $os_params::mongo_primary,
 ){
 
   include 'cloud::telemetry'
 
-  $db_conn = regsubst($ceilometer_database_connection, 'mongodb:\/\/(\.*)', '\2')
-  exec {'check_mongodb' :
-    command   => "/usr/bin/mongo ${db_conn}",
-    logoutput => false,
-    tries     => 60,
-    try_sleep => 5,
+  $s_mongo_nodes = join($mongo_nodes, ',')
+  $db_conn = "mongodb://${s_mongo_nodes}/ceilometer?replicaSet=ceilometer"
+
+  if $::hostname == $mongo_primary {
+    $sync_db = true
+  } else {
+    $sync_db = false
   }
-  Service <| title == 'mongodb' |> -> Exec['check_mongodb']
 
   # Install MongoDB database
   class { 'ceilometer::db':
-    database_connection => $ceilometer_database_connection,
-    require             => Exec['check_mongodb'],
+    database_connection => $db_conn,
+    sync_db             => $sync_db,
+    require             => Anchor['mongodb setup done'],
   }
 
 # Install Ceilometer-collector