kalebr-pusher

How to use it

Requirements

• Ruby 2.1.2 or greater
• Redis

Server setup

Most linux distributions have by defualt a very low open files limit. In order to sustain more than 1024 ( default ) connections, you need to apply the following changes to your system: Add to /etc/sysctl.conf:

fs.file-max = 50000

Add to /etc/security/limits.conf:

* hard nofile 50000
* soft nofile 50000
* hard nproc 50000
* soft nproc 50000

$ kalerbr-pusher --app_key 765ec374ae0a69f4ce44 --secret your-pusher-secret

If all went to plan you should see the following output to STDOUT

kalebr-pusher API server listening on port 4567 kalebr-pusher WebSocket server listening on port 8080

Modifying your application code to use the Kalebr service

...

Pusher.host   = 'kalebr.example.com'
Pusher.port   = 4567

You will also need to do the same to the Pusher JavaScript client in your client side JavaScript, e.g

<script type="text/javascript">
  var pusher = new Pusher('#{Pusher.key}', {
    wsHost: "0.0.0.0",
    wsPort: "8080",
    wssPort: "8080",
    enabledTransports: ['ws', 'flash']
  });
</script>

Of course you could proxy all requests to ws.example.com to port 8080 of your kalerbr-pusher node and api.example.com to port 4567 of your kalerbr-pusher node for example, that way you would only need to set the host property of the Pusher client.

Author

• Nilanga Saluwadana

© 2016