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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"'
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"

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
#!/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)"
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)
#!/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
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>
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.
#!/usr/bin/ruby -w
require 'csv'
require 'active_support/core_ext'
class Parser
attr_accessor :input_folder
attr_accessor :output_folder
attr_accessor :filename
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