OpenContrail 3.0.3.x requires api_host parameter

Change-Id: Ic864cbd73fdaaf5853b4c7ce317c850bf81f7a0a
diff --git a/opencontrail/files/3.0/contrail-analytics-api.conf b/opencontrail/files/3.0/contrail-analytics-api.conf
index 072b811..4a0a0f5 100644
--- a/opencontrail/files/3.0/contrail-analytics-api.conf
+++ b/opencontrail/files/3.0/contrail-analytics-api.conf
@@ -3,6 +3,7 @@
 host_ip = {{ collector.bind.address }}
 cassandra_server_list={% for member in collector.database.members %}{{ member.host }}:9042 {% endfor %}
 http_server_port = 8090
+api_host={{ collector.discovery.host }}:8082
 rest_api_port = {{ collector.bind.get('port', '8081') }}
 rest_api_ip = 0.0.0.0 
 log_local = 1