railsfactory-kumaresan

echo "deb http://apt.postgresql.org/pub/repos/apt/ precise-pgdg main" | sudo tee /etc/apt/sources.list.d/pgdg.list
wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
sudo apt-get update
sudo apt-get install postgresql-9.3 postgresql-server-dev-9.3 postgresql-contrib-9.3 -y
 
sudo su - postgres -c "psql template1 -p 5433 -c 'CREATE EXTENSION IF NOT EXISTS hstore;'"
sudo su - postgres -c "psql template1 -p 5433 -c 'CREATE EXTENSION IF NOT EXISTS \"uuid-ossp\";'"
sudo su - postgres -c "service postgresql stop"
sudo su - postgres -c '/usr/lib/postgresql/9.3/bin/pg_upgrade -b /usr/lib/postgresql/9.1/bin -B /usr/lib/postgresql/9.3/bin -d /var/lib/postgresql/9.1/main/ -D /var/lib/postgresql/9.3/main/ -O "-c config_file=/etc/postgresql/9.3/main/postgresql.conf" -o "-c config_file=/etc/postgresql/9.1/main/postgresql.conf"'
 

railsfactory-kumaresan

sudo add-apt-repository ppa:pitti/postgresql
sudo apt-get update
sudo apt-get install postgresql-9.2 postgresql-server-dev-9.2 postgresql-contrib-9.2

sudo su -l postgres
psql -d template1 -p 5433
CREATE EXTENSION IF NOT EXISTS hstore;
CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
service postgresql stop
/usr/lib/postgresql/9.2/bin/pg_upgrade -b /usr/lib/postgresql/9.1/bin -B /usr/lib/postgresql/9.2/bin -d /var/lib/postgresql/9.1/main/ -D /var/lib/postgresql/9.2/main/ -O "-c config_file=/etc/postgresql/9.2/main/postgresql.conf" -o "-c config_file=/etc/postgresql/9.1/main/postgresql.conf"

railsfactory-kumaresan

Ubuntu 12.04, Ruby, Rails, Nginx, Unicorn and git-deploy

In the seemlingly endless search for the actual correct and easy way to deploy a Rails app, we have tried several ways. We tried out using Apache2 and running a cluster of Thin servers. With the built in threading of Puma we decided to use it with Nginx.

Server Setup

• Create new server
• Login to new server
  • ssh root@IPaddress (you can also use the domain name if you have the DNS setup already)
  • accept the RSA key

railsfactory-kumaresan

#!/bin/bash
 
###
# 
# Copyright (c) 2013 KimSia Sim
# 
# Ubuntu 12.10 based install jenkins and other related plugins
# Run this by executing the following from a fresh install of Ubuntu 12.10 server:
# 
#     bash -c "$(curl -fsSL https://gist.github.com/simkimsia/4473000/raw/5e301a3bd399096e7cbbe3b1a877997a117aa7a3/install-jenkins-on-ubuntu-12-10.sh)"

railsfactory-kumaresan

    context 'performance' do
      before do
        require 'benchmark'
        @posts = []
        @users = []
        8.times do |n|
          user = Factory.create(:user)
          @users << user
          aspect = user.aspects.create(:name => 'people')
          connect_users(@user, @aspect0, user, aspect)

railsfactory-kumaresan

#!/usr/bin/env ruby
#
# Ruby script to download a number of files
# from individual URLs via HTTP/HTTPS/FTP
# specified in an external file.
#
# Author: Tobias Preuss
# Revision: 2013-04-18 16:26 +0100 UTC
# License: Creative Commons Attribution-ShareAlike 3.0 Unported

railsfactory-kumaresan

  require 'httparty'

  class Webservice
    CANDIDATE = <<XML  
<Candidate xmlns="com.mysite/2010/10/10" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
  <FirstName>%s</FirstName>
  <LastName>%s</LastName>
  <Email>%s</Email>
  <Gender>%s</Gender>
</Candidate>

railsfactory-kumaresan

OK, Let's begin. Hello, Everybody.
My name is Narihiro Nakamura.
Today, I'm talking about "Parallel worlds of CRuby's GC".

I'm very happy now, because I'm meeting attendee in rubyconf.
And, one of my dreams is to talk in rubyconf.
So, I'm very happy and exciting.

Today is my first presentation in English.
My English is not good.

railsfactory-kumaresan

#!/usr/bin/ruby -w

require 'csv'
require 'active_support/core_ext'

class Parser

  attr_accessor :input_folder
  attr_accessor :output_folder
  attr_accessor :filename

railsfactory-kumaresan

module HashConverter
  class << self
    def to_underscore hash
      convert hash, :underscore
    end
    def to_camel_case hash
      convert hash, :camelize, :lower
    end
    def convert obj, *method
      case obj