test add acl backend websocket

templates/haproxy.cfg.j2

@@ -137,7 +137,6 @@ frontend http
 
 {% endif %}
     mode http
-    option http-keep-alive
     option httplog
     option forwardfor
     # HSTS (63072000 seconds)
@@ -145,6 +144,11 @@ frontend http
     http-request set-header X-Forwarded-Proto https if { ssl_fc }
     # Remove the port from the host endpoint.
     http-request replace-value Host (.*):.* \1
+
+
+    acl is_websocket hdr(Upgrade) -i WebSocket 
+    use_backend dev_itineris_italian_seas_bck if is_websocket
+
 {% if docker_swarm_cluster_portainer_install %}
     acl portainer_srv hdr(host) -i {{ docker_swarm_portainer_hostname }}
 {% endif %}