Set default bind port for prometheus-relay

Change-Id: Iae9da7aa5c0a7c16d05c35d229d0039d2c3f959d
Closes-Bug: PROD-20117
diff --git a/prometheus/relay/init.yml b/prometheus/relay/init.yml
index a240458..2841850 100644
--- a/prometheus/relay/init.yml
+++ b/prometheus/relay/init.yml
@@ -1,3 +1,11 @@
 classes:
  - service.prometheus.relay
  - service.prometheus.relay.cluster
+parameters:
+  _param:
+    prometheus_relay_bind_port: 9094
+  prometheus:
+    relay:
+      enabled: true
+      bind:
+        port: ${_param:prometheus_relay_bind_port}