111214 node conf

CloudFoundrytransports{[‘websocket’]} 2011/12/14(wed) Node 3

• (@komasshu)• html5• WebSocket• Google API Expert (HTML5)• Microsoft Valuable Professional (IE)

CloudFoundryWebSocket ...

aboutCloud Foundry

Cloud Foundry ?• VMWare PaaS https://github.com/cloudfoundry

easy demo just push apps$ vmc push hogehoge http://cloudfoundry.com/

Heroku• private PaaS•• CloudFoundry PaaS • Active State • AppFog • Joyent

Architecture of Cloud Foundryhttp://www.slideshare.net/derekcollison/design-of-cloud-foundry

• • Cloud Controller • router • DEA • ...• NATS •

hoge.com 3000 app0 (3000) fuga.com 3001 routerhoge.com app1 (3001) DEA register deploy cloud controller push

aboutwebsocket

WebSocket• HTML5 API/Protocol• Web •

• Web(port=80) VPN • SSL-VPN

Handshake

HandshakeFrames

HTTPGET200GET200GET200

point : UpgradeRequest Header (client => server) GET /chat HTTP/1.1 Host: server.example.com Upgrade: websocketResponse Header (server => client) HTTP/1.1 101 Switching Protocols Upgrade: websocket Connection: Upgrade Upgrade HTTP WebSocket

HTTP Compatible• VPN • FW, Proxy • HTTP/1.1 • • Web VPN

http://www.ericom.com/html5_client_vmware_view.asp http://www.publickey1.jp/blog/11/webhtml5.html

WebSocket onCloud Foundry

CloudFoundry WebSocket orz• why? • nginx 2 • router HTTP/1.1 rails sinatra nginx router node.js DEA

• nginx • zip Access log HTTPS• router • URL routing URL routing unix domain tcp socket socket rails (tcp socket ) 80/443 sinatra nginx router node.js DEA

2 socket.io +transports{‘xhr-polling’}

WebSocket nginx • Request HTTP (502) • tcp_proxy Patch •https://github.com/yaoweibin/nginx_tcp_proxy_module

nginx.conftcp { upstream vcap_router { server unix:/tmp/router.sock;# server 127.0.0.1:2222;# check interval=3000 rise=2 fall=5 timeout=1000; } tcp_nodelay off; server { listen 80; server_name _; proxy_read_timeout 200000; proxy_send_timeout 200000; proxy_pass vcap_router; }}

WebSocket router• HTTP Request/Response HTTP• WebSocket Frames• HTTP

dialog of router.rb request Header router request/sec Router on_headers _complete() unix module module node.jsnginx domain TCP socket socket ClientConnection AppConnection on_headers _complete() response Header response latency

WebSocketUpgrade: websocketWebsocketConnection router module TCP socket node.js on_headers AppConnection _complete() on_headers unix module _complete() nginx domain socket ClientConnection module WebsocketConne TCP socket node.js ction WS

client_connection.rbdef on_headers_complete(headers) .... # [kom] Check connection mode(websocket or not) @is_websocket = (headers[UPGRADE_HEADER] == WEBSOCKET) ? true : false Router.log.info "@is_websocket : #{@is_websocket}" .... if (@is_websocket) host, port = @droplet[:host], @droplet[:port] @bound_app_conn = EM.connect(host, port, WebsocketConnection, self,@headers, @droplet) return end ....end

websocket_connection.rbmodule WebsocketConnection def initialize client, header, droplet @client, @header, @droplet = client, header, droplet end def connection_completed send_data(@header) end def receive_data(data) @client.send_data(data) end def terminate end orzend

socket.io +transports{‘websocket’} :)

moveforward

timeline• cloud foundry• websocket• orz• code reading• ←

next step• • pull request• brush up

problem• vps ... Cent OS, 512MB plan• Cloud Foundry • 1GB memory • Ubuntu10.04.2•

router ( ∀ )http://www.slideshare.net/derekcollison/design-of-cloud-foundry

• NATS• routing

conﬁg/routing.yml

git clonehttps://github.com/KensakuKOMATSU/cf_router

$ cd bin$ ./router

I love BDD Benkyo-kai Driven Development

Thank you!!http://twitter.com/komasshu

http://www.cystein.net	186
http://paper.li	15
http://a0.twimg.com	6
http://us-w1.rockmelt.com	4
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111214 node conf

by Kensaku Komatsu on Dec 14, 2011

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