EC2でnode.js, socket.ioのテスト

app.js

var app = require('http').createServer(handler),
    io = require('socket.io').listen(app),
    fs = require('fs');
app.listen(3000);
io.set('log level', 1);
function handler(req, res) {
    fs.readFile(__dirname + '/index.html', function(err, data) {
        if (err) {
            res.writeHead(500);
            return res.end('Error');
        }
        res.writeHead(200);
        res.write(data);
        res.end();
    })
}
io.sockets.on('connection', function(socket) {
    socket.on('emit_from_client', function(data) {
        socket.join(data.room);
        socket.emit('emit_from_server', 'you are in ' + data.room);
        socket.broadcast.to(data.room).emit('emit_from_server', data.msg);
    });
});

gistfile1.txt

作業ログ

$ sudo yum update -y
$ sudo yum install git
$ git clone https://github.com/creationix/nvm.git ~/.nvm
$ source ~/.nvm/nvm.sh
$ nvm ls-remote
$ nvm install v0.12.1

http.js

//httpモジュールをインポート
var http = require('http');
 
//Webサーバーの設定
http.createServer(function (req, res) {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.end('Hello World\n');
}).listen(3000);
 
console.log('Server running. ');

node.js起動時エラー

node.js起動時エラー : Error: listen EADDRINUSE
http://qiita.com/kkam0907/items/65ceedbf3c71ae086838

[ec2-user@ip-172-16-0-55 ~]$ ps aux | grep node
ec2-user  5725  0.0  2.0 760544 21144 pts/0    Tl   01:32   0:00 node app.js
ec2-user  5761  0.0  0.0 114620   916 pts/0    S+   01:43   0:00 grep node
[ec2-user@ip-172-16-0-55 ~]$ sudo kill -9 5725
[1]+  強制終了            node app.js
[ec2-user@ip-172-16-0-55 ~]$ 
[ec2-user@ip-172-16-0-55 ~]$ 

socket.ioインストール

$ npm install socket.io
 
> [email protected] install /home/ec2-user/node_modules/socket.io/node_modules/engine.io/node_modules/ws
> (node-gyp rebuild 2> builderror.log) || (exit 0)

make: ディレクトリ `/home/ec2-user/node_modules/socket.io/node_modules/engine.io/node_modules/ws/build' に入ります
  CXX(target) Release/obj.target/bufferutil/src/bufferutil.o
make: ディレクトリ `/home/ec2-user/node_modules/socket.io/node_modules/engine.io/node_modules/ws/build' から出ます

> [email protected] install /home/ec2-user/node_modules/socket.io/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws
> (node-gyp rebuild 2> builderror.log) || (exit 0)

make: ディレクトリ `/home/ec2-user/node_modules/socket.io/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/build' に入ります
  CXX(target) Release/obj.target/bufferutil/src/bufferutil.o
make: ディレクトリ `/home/ec2-user/node_modules/socket.io/node_modules/socket.io-client/node_modules/engine.io-client/node_modules/ws/build' から出ます
[email protected] node_modules/socket.io
├── [email protected] ([email protected])
├── [email protected] ([email protected])
├── [email protected] ([email protected], [email protected], [email protected], [email protected], [email protected])
├── [email protected] ([email protected], [email protected], [email protected])
├── [email protected] ([email protected], [email protected], [email protected], [email protected])
└── [email protected] ([email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected])

参考1: http://d.hatena.ne.jp/TROUBLE_MAKER/20141020/1413743196
参考2: http://www.atmarkit.co.jp/ait/articles/1501/09/news040.html

あいかわらずドットインストールがすごい
参考:http://dotinstall.com/lessons/basic_socketio