I hear great things about Faye: http://faye.jcoglan.com/
You can also get something up an running in Go very quickly that should scale pretty well and might make deploys easy since you can just compile to binaries.
eg: https://github.com/joncalhoun/sockets is a server that just allows POSTs with a message, and relays that message to all websocket subscribers. If you use any of that code be sure to change the hardcoded key here: https://github.com/joncalhoun/sockets/blob/master/main.go#L2... (I don't use this key in prod. It was just a test one.)
I hear great things about Faye: http://faye.jcoglan.com/
You can also get something up an running in Go very quickly that should scale pretty well and might make deploys easy since you can just compile to binaries.
eg: https://github.com/joncalhoun/sockets is a server that just allows POSTs with a message, and relays that message to all websocket subscribers. If you use any of that code be sure to change the hardcoded key here: https://github.com/joncalhoun/sockets/blob/master/main.go#L2... (I don't use this key in prod. It was just a test one.)