-modified readme

- add config example for signaling server behing varnish

README.md

@@ -1 +1,3 @@
-Audio/Video and Messaging WebRTC chat inspired by http://symple.sourcey.com/
+Audio/Video and Messaging WebRTC chat inspired by [symple.sourcey.com](http://symple.sourcey.com/)
+
+A working version is hosted under [chat.lookshe.org](http://chat.lookshe.org/)

signaling-server/varnish.config

@@ -0,0 +1,37 @@
+#################################################################################################################################
+# inspired by http://serverfault.com/questions/370890/best-way-to-deploy-my-node-js-app-on-a-varnish-nginx-server/371008#371008 #
+#################################################################################################################################
+
+# to use the signaling server behind a varnish cache server you need to define a backend for it
+
+backend nodejs {
+    .host = "127.0.0.1";
+    #.host = "148.251.154.68";
+    .port = "4500";
+}
+
+
+# and also some modifications in vcl_recv
+
+if (req.http.Upgrade ~ "(?i)websocket") {
+  set req.backend = nodejs;
+  return (pipe);
+}
+if (req.http.host == "chat.lookshe.org") {
+  if (req.url ~ "^/socket.io/") {
+    set req.backend = nodejs;
+    return (pipe);
+  }
+}
+
+
+# and at least vcl_pipe
+
+sub vcl_pipe {
+   #Need to copy the upgrade for websockets to work
+   if (req.http.upgrade) {
+      set bereq.http.upgrade = req.http.upgrade;
+   }
+   set bereq.http.Connection = "close";
+   return (pipe);
+}