websocket

Example

tcp {
  upstream backend1 {
	server 192.168.0.1:2000;
  }

  upstream backend2 {
	server 192.168.0.2:2000;
  }

  upstream backend3 {
	server 192.168.0.3:2000;
  }

  server {
	#default block if there is no host
	listen 80 default;
	server_name foo.example.com

	websocket_pass backend1;
  }

   server {
	listen 80;
	#request from host name 'bar.example.com' 
	server_name bar.example.com

	#default location process handler
	websocket_pass backend2;
	#the request from the path of 'cat'
	websocket_pass /cat backend3;
  }
}