add prometheus

templates/haproxy_head.erb

@@ -54,15 +54,24 @@ defaults
     timeout check           <%= @hy_timeout_check %>
     maxconn                 <%= @hy_maxconn %>
 
-listen stats
-    bind 127.0.0.1:8404  # Bind to localhost if only local access is needed #
-    mode http
-    stats enable
-    stats uri /haproxy?stats
-    stats realm Strictly\ Private
-    stats auth <%= @hy_stats_auth %>
-    stats refresh 30s
-    stats admin if TRUE  # Allow admin actions if logged in
+#listen stats
+#    bind 127.0.0.1:8404  # Bind to localhost if only local access is needed #
+#    mode http
+#    stats enable
+#    stats uri /haproxy?stats
+#    stats realm Strictly\ Private
+#    stats auth <%= @hy_stats_auth %>
+#    stats refresh 30s
+#    stats admin if TRUE  # Allow admin actions if logged in
+
+
+frontend stats
+   bind *:8404
+   option http-use-htx
+   http-request use-service prometheus-exporter if { path /metrics }
+   stats enable
+   stats uri /stats
+   stats refresh 10s
 
 <% if @hy_manage_be_users == true -%>
   <%= @hy_be_userlist %>