serve kubernetes exec websocket

[Jorge]

Hello,

I would like to serve my kubernetes exec websocket through gevent-websocket, but I'm not sure how I can do it.

In other words, I want to serve my kubernetes.stream.ws_client.WSClient instance, which contains a websocket.WebSocket object, through a flask app by using the request.environment['wsgi.websocket'] object.

Many thanks,

Jorge

[Matt Billenstein]

Hi, I've used gevent-websocket and gunicorn for this -- so in the gunicorn
config you use a GeventWebSocketWorker:


```
$ grep worker_class webapp/gconfig.py
worker_class = 'geventwebsocket.gunicorn.workers.GeventWebSocketWorker'

$ cat webapp/run.sh
#!/bin/bash

pushd $(dirname $0) > /dev/null
HERE="$(pwd)"
popd > /dev/null

exec gunicorn -c $HERE/gconfig.py $* main:app
```

Then in flask you define a route and a handler:

```
from flask import request, Flask

app = Flask(__name__)

def handler():
ws = request.environ['wsgi.websocket']
while 1:
msg = ws.receive()
ws.send(msg)

app.route('/ws/')(handler)
```

More or less -- code I mocked here is untested...

m

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