Proxy: attempt to move ipsilon back to a VM in staging

Signed-off-by: Aurélien Bompard <aurelien@bompard.org>

roles/haproxy/templates/haproxy.cfg

@@ -267,6 +267,20 @@ backend pps-backend
 
 {% endif %}
 
+{% if env == "staging" %}
+frontend ipsilon-frontend
+    bind 0.0.0.0:10020
+    default_backend ipsilon-backend
+
+backend ipsilon-backend
+    balance hdr(appserver)
+    server  ipsilon01 ipsilon01:80 check inter 10s rise 1 fall 2
+{% if env == "production" %}
+    server  ipsilon02 ipsilon02:80 check inter 10s rise 1 fall 2
+{% endif %}
+    option httpchk GET /
+{% endif %}
+
 frontend ipa-frontend
     bind 0.0.0.0:10053
     default_backend ipa-backend