Add support of OSSysLogHandler logging handler

Change-Id: I5932c575c14e21b81aee776977b448fba5e9669f
diff --git a/metadata/service/server/single.yml b/metadata/service/server/single.yml
index 0325c48..68fc4c1 100644
--- a/metadata/service/server/single.yml
+++ b/metadata/service/server/single.yml
@@ -7,6 +7,7 @@
     keystone_aodh_endpoint_type: internalURL
     openstack_log_appender: false
     openstack_fluentd_handler_enabled: false
+    openstack_ossyslog_handler_enabled: false
   aodh:
     server:
       enabled: true
@@ -37,6 +38,8 @@
             enabled: true
           fluentd:
             enabled: ${_param:openstack_fluentd_handler_enabled}
+          ossyslog:
+            enabled: ${_param:openstack_ossyslog_handler_enabled}
       message_queue:
         engine: rabbit
         host: ${_param:single_address}
@@ -47,4 +50,4 @@
         # Workaround for https://bugs.launchpad.net/ceilometer/+bug/1337715
         rpc_thread_pool_size: 5
       notifications:
-        store_events: true
\ No newline at end of file
+        store_events: true