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#!/bin/bash

echo "Setting up chef..."

sudo apt-get -y update  
sudo apt-get -y install ruby ruby1.8-dev libopenssl-ruby1.8 rdoc ri irb build-essential wget ssl-cert

cd /tmp
wget http://rubyforge.org/frs/download.php/57643/rubygems-1.3.6.tgz
tar zxf rubygems-1.3.6.tgz

mguterl

# Because Unicorn is such a brilliant piece of software, it wraps older,
# non-Rack versions of Rails in a Rack handler. That way Unicorn
# itself can target Rack and not have to worry about monkey patching
# Rails' dispatcher.
#
# This means we can do the same, and even more.
#
# Starting Rackhub locally:
#
# Thin:

mguterl

require 'sunspot'
require 'sunspot/session_proxy/abstract_session_proxy'
require 'resque'
require 'resque-retry'

class SunspotResqueSessionProxy < Sunspot::SessionProxy::AbstractSessionProxy
  attr_reader :session
  
  delegate  :config, :delete_dirty?, :dirty?, 
            :new_search, :search, 

mguterl

# backup redis databases to s3 on the engineyard platform

require 'zlib'
require 'rubygems'
require 'crack/json'
require 'aws/s3'

class Redis2S3

  DATABASE = '/db/redis/redis_state.rdb'

mguterl

  * executing `deploy'
  * executing `deploy:update'
 ** transaction: start
  * executing `deploy:update_code'
    updating the cached checkout on all servers
    executing locally: "git ls-remote git@github.com:ryw/peoplebest.git master"
  * executing "if [ -d /home/deploy/public_html/peoplebest/shared/cached-copy ]; then cd /home/deploy/public_html/peoplebest/shared/cached-copy && git fetch -q origin && git reset -q --hard e18b14000c60255f8a438bba465f25c11899a44c && git submodule -q init && for mod in `git submodule status | awk '{ print $2 }'`; do git config -f .git/config submodule.${mod}.url `git config -f .gitmodules --get submodule.${mod}.url` && echo Synced $mod; done && git submodule -q sync && git submodule -q update && git clean -q -d -x -f; else git clone -q git@github.com:ryw/peoplebest.git /home/deploy/public_html/peoplebest/shared/cached-copy && cd /home/deploy/public_html/peoplebest/shared/cached-copy && git checkout -q -b deploy e18b14000c60255f8a438bba465f25c11899a44c && git submodule -q ini

mguterl

require 'uri'
require 'psych'
require 'net/http'

require 'meme' # Install meme_generator

module Campfire
  class API
    attr_reader :uri, :token, :pass

mguterl

class BusinessStore < ActiveRecord::Base
  attr_accessible :website, :name, :address,  :phone_number, :online_store
  has_many :products
end

mguterl

#!/usr/bin/env bash

# This is an RVM Project .rvmrc file, used to automatically load the ruby
# development environment upon cd'ing into the directory

# First we specify our desired <ruby>[@<gemset>], the @gemset name is optional,
# Only full ruby name is supported here, for short names use:
#     echo "rvm use 1.9.3" > .rvmrc
environment_id="ruby-1.9.3-p0@cincirb_katas"

mguterl

Don't be blind when making adjustments for performance. Measure, measure, measure.

Overview

New Relic is a great product for monitoring the peformance of your application. They provide performance management for Ruby, PHP, .Net, Java and Python. Today's presentation is going to focus on Ruby and specifically Rails, however, the basic New Relic overview will be applicable to any of the platforms mentioned. Integrating New Relic into your Rails application is as easy as signing up and adding the gem to your Rails application's Gemfile.

Apdex

When measuring performance in the browser or on the server New Relic provides Apdex scores. Apdex is

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Latency Comparison Numbers
--------------------------
L1 cache reference                            0.5 ns
Branch mispredict                             5   ns
L2 cache reference                            7   ns             14x L1 cache
Mutex lock/unlock                            25   ns
Main memory reference                       100   ns             20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy              3,000   ns
Send 1K bytes over 1 Gbps network        10,000   ns    0.01 ms
Read 4K randomly from SSD*              150,000   ns    0.15 ms