Add InfluxDB relay service

Change-Id: I96e8b0b0bfd328180826d6f72d7fb1b072d62278
diff --git a/classes/cluster/sl_os_contrail/stacklight/server.yml b/classes/cluster/sl_os_contrail/stacklight/server.yml
index 819404c..243ec03 100755
--- a/classes/cluster/sl_os_contrail/stacklight/server.yml
+++ b/classes/cluster/sl_os_contrail/stacklight/server.yml
@@ -11,8 +11,9 @@
 - system.kibana.server.single
 - system.haproxy.proxy.listen.stacklight.elasticsearch
 - system.haproxy.proxy.listen.stacklight.kibana
-- system.haproxy.proxy.listen.stacklight.influxdb
+- system.haproxy.proxy.listen.stacklight.influxdb_relay
 - service.haproxy.proxy.single
+- system.influxdb.relay.cluster
 - system.influxdb.server.single
 - system.influxdb.database.prometheus
 - system.keepalived.cluster.instance.prometheus_server_vip
@@ -31,6 +32,7 @@
     keepalived_prometheus_vip_password: 'password'
     keepalived_prometheus_vip_interface: ens4
     cluster_vip_address: ${_param:stacklight_monitor_address}
+    cluster_local_address: ${_param:single_address}
     cluster_elasticsearch_port: 9200
     cluster_kibana_port: 5601
     cluster_node01_hostname: ${_param:stacklight_monitor_node01_hostname}
@@ -80,4 +82,4 @@
   elasticsearch:
     server:
       heap:
-        size: 1
\ No newline at end of file
+        size: 1