two features:

1. receive data through tcp and forward it through websocket connection

2. receive data through websocket and forward it to upstream tcp port

on server side, listen for websocket connection and forward it to ssh port, example config

proxy_config:
    - listen: ws://127.0.0.1:2222/p1
      remote: tcp://127.0.0.1:22

start server side proxy by wstunnel -c server.yaml

on client side, forward the connection through websocket, example config

proxy_config:
    -  listen: tcp://127.0.0.1:9001
       remote: ws://127.0.0.1:2222/p1

start client side proxy by wstunnel -c client.yaml

now, you can connect to ssh server by ssh -p 9001 127.0.0.1, your ssh connection hide in websocket

the websocket can be proxied by nginx also