digital ocean node installation and stuff

install.sh

yum update -y
yum install -y git nodejs npm vim
npm install -g n
n stable
node --version
git --version

vim /etc/yum.repos.d/mongodb.repo
[mongodb]
name=MongoDB Repository
baseurl=http://downloads-distro.mongodb.org/repo/redhat/os/x86_64/
gpgcheck=0
enabled=1

service mongod start
mongo

wget http://download.redis.io/releases/redis-2.8.13.tar.gz
tar -xvzf redis-2.8.13.tar.gz
cd redis-2.8.13
make
make install
vim /etc/systemd/system/redis.service
[Service]
ExecStart=/usr/local/bin/redis-server
Restart=always

redis-cli

npm install --global gulp

su www
cd #/home/www
git clone https://github.com/dickeyxxx/mean-sample

vim /etc/systemd/system/mean-sample.service
[Service]
WorkingDirectory=/home/www/mean-sample
ExecStart=/usr/local/bin/npm start
User=www
Group=www
Restart=always
Environment='NODE_ENV=production'
StandardOutput=syslog
StandardError=syslog
SyslogIdentifier=mean-sample



#### LB

yum update -y
yum install -y git nodejs npm vim
npm install -g n
n stable
node --version
git --version

vim lb.js
var httpProxy = require('http-proxy')
var http = require('http')

var proxy = httpProxy.createProxyServer()

var urls = [
  'http://107.170.225.113:3000',
  'http://107.170.225.114:3000'
]

function randomUrl() {
   return urls[Math.floor(Math.random()*urls.length)]
}

var server = http.createServer(function (req, res) {
   proxy.web(req, res, { target: randomUrl() })
})

server.on('upgrade', function (req, socket, head) {
  proxy.ws(req, socket, head, { target: randomUrl() });
})

server.listen(80)