czarneckid

Zero downtime deploys with unicorn + nginx + runit + rvm + chef

Below are the actual files we use in one of our latest production applications at Agora Games to achieve zero downtime deploys with unicorn. You've probably already read the GitHub blog post on Unicorn and would like to try zero downtime deploys for your application. I hope these files and notes help. I am happy to update these files or these notes if there are comments/questions. YMMV (of course).

Other application notes:

• Our application uses MongoDB, so we don't have database migrations to worry about as with MySQL or postgresql. That does not mean that we won't have to worry about issues with the database with indexes being built in MongoDB or what have you.
• We use capistrano for deployment.

Salient points for each file:

shmatov

# lib/tasks/deploy.rake
namespace :deploy do
  desc 'Deploy to staging environment'
  task :staging do
    exec 'mina deploy -f config/deploy/staging.rb'
  end
end

sunny

# encoding: UTF-8
class ActiveRecord::Base

  # Class method to add destroyable paperclip attachments.
  #
  # Example:
  #   has_attached_file :image
  #   has_destroyable_file :image
  #   attr_accessible :image_delete
  #

mikhailov

# Nginx+Unicorn best-practices congifuration guide. Heartbleed fixed.
# We use latest stable nginx with fresh **openssl**, **zlib** and **pcre** dependencies.
# Some extra handy modules to use: --with-http_stub_status_module --with-http_gzip_static_module
#
# Deployment structure
#
# SERVER:
#  /etc/init.d/nginx                             (1. nginx)
#  /home/app/public_html/app_production/current  (Capistrano directory)
#

erikh

#!/usr/bin/env sh

##
# This is script with usefull tips taken from:
#   https://github.com/mathiasbynens/dotfiles/blob/master/.osx
#
# install it:
#   curl -sL https://raw.github.com/gist/2108403/hack.sh | sh
#

burke

ruby-1.9.3-p327 cumulative performance patch for rbenv

This installs a patched ruby 1.9.3-p327 with various performance improvements and a backported COW-friendly GC, all courtesy of funny-falcon.

Requirements

• rbenv
• ruby-build

You will also need a C Compiler. If you're on Linux, you probably already have one or know how to install one. On OS X, you should install XCode, and brew install autoconf using homebrew.

bryanveloso

#!/usr/bin/env ruby -w

# brew-services(1) - Easily start and stop formulas via launchctl
# ===============================================================
#
# ## SYNOPSIS
#
# [<sudo>] `brew services` `list`<br>
# [<sudo>] `brew services` `restart` <formula><br>
# [<sudo>] `brew services` `start` <formula> [<plist>]<br>

nhocki

heroku addons:add pgbackups --remote staging
heroku addons:add pgbackups --remote production
heroku pgbackups:capture --remote production
heroku pgbackups:restore DATABASE `heroku pgbackups:url --remote production` --remote staging

patmcnally

# load libraries
require 'rubygems' rescue nil
require 'wirble'
#require 'json'

alias q exit

class Object
  def local_methods
    (methods - Object.instance_methods).sort

makevoid

# v 1.0.1 

~$ ARCHFLAGS='-arch i386 -arch x86_64'
~$ rvm install 1.8.7 --debug --reconfigure -C --enable-shared=yes
~$ wget http://sourceforge.net/projects/rubycocoa/files/RubyCocoa/1.0.1/RubyCocoa-1.0.1.tar.gz/download
~$ tar xzf RubyCocoa-1.0.1.tar.gz && rm RubyCocoa-1.0.1.tar.gz && cd RubyCocoa-1.0.1
~/RubyCocoa-1.0.1$ ruby install.rb config --build-universal=yes
~/RubyCocoa-1.0.1$ ruby install.rb setup
~/RubyCocoa-1.0.1$ sudo ruby install.rb install