Use correct LB image

templates/postgres/0/docker-compose.yml

@@ -1,11 +1,9 @@
 version: '2'
 services:
   postgres-lb:
-    image: rancher/load-balancer-service
+    image: rancher/lb-service-haproxy
-    links:
-      - postgres
     ports:
-      - ${lb_port}:5432
+      - ${lb_port}
 
   postgres-data:
     image: busybox