[Labs-l] exposing web socket on labs

Wed Jan 21 09:33:45 UTC 2015

Hey,

I've experimented with WebSockets on Tools some months ago, it was 
highly implementation specific if WebSocket servers worked. As far as I 
remember the situation was as following:

socket.io 0.9 with python/gevent backend: total failure (regarding 
WebSockets)

socket.io 1.0 with nodejs: WebSocket connection is established, client 
receives everything, messages from client to server get lost somewhere 
inbetween

native WebSocket library 'ws' on nodejs: same as above

sockjs with nodejs or python backend (tornado): works flawlessly

Best wishes
Jan

On 01/21/2015 09:12 AM, Anthony Di Franco wrote:
> Hi all,
>   Max Klein and I have been working on a service that listens to the
> recent changes stream <https://wikitech.wikimedia.org/wiki/RCStream> and
> looks at the edits to the pages and extracts information about what was
> edited and re-publishes that on another websocket. We've modified Ed
> Summers' wikistream <https://github.com/edsu/wikistream> to display the
> changes by making it listen on a websocket for changes instead of an IRC
> connection as the original did. Now we're trying to get it all deployed
> and running and some questions have come up around how the tools-labs
> resources work in exposing things to the outside network.
>   We first tried setting up our server using webservice start as
> described here <https://wikitech.wikimedia.org/wiki/Help:Tool_Labs/Web>
> under "other web servers", but while the changes stream was being
> published from the server app and webapp got served properly into the
> browser we couldn't see our websocket from the outside network to
> receive the changes stream. We then moved on to trying to deploy to own
> subdomain as is done in the original but had similar problems (though by
> that point we were more disorganized after the accumulated changes we
> made to the original in our first attempt).
>   That being the case I'd like to ask in general about how proxing works
> in the labs environments for the different deployment options and
> specifically what would be the best strategy for deploying this service
> in a way that it can expose a websocket to the outside network.
> Thanks for the help
> Anthony
>
>
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