Merge "Add the api works num for watcher"

ansible/roles/watcher/templates/watcher.conf.j2

@@ -9,6 +9,7 @@ transport_url = rabbit://{% for host in groups['rabbitmq'] %}{{ rabbitmq_user }}
 [api]
 host = {{ api_interface_address }}
 port = {{ watcher_api_port }}
+workers = {{ openstack_service_workers }}
 {% endif %}
 
 [database]