defunkt

##
# Returns the command that will check out +revision+ from the
# repository into directory +destination+.  +revision+ can be any
# SHA1 or equivalent (e.g. branch, tag, etc...)

def checkout(revision, destination)
  destination = File.join(destination, 'repo')
  revision = 'HEAD' if revision =~ /head/i

  [ "rm -rf #{destination}",

defunkt

set :normal_symlinks, %w(
  config/solr.yml
  config/memcached.yml
  config/database.yml
  config/mongrel_cluster.yml
)

set :weird_symlinks, {
  'network_data_cache' => 'tmp/network_data_cache',
  'impact_data_cache'  => 'tmp/impact_data_cache',

defunkt

# basics
load 'config/deploy/sudo_everywhere'
load 'config/deploy/settings'

# daemons
load 'config/deploy/services'
load 'config/deploy/queue'
load 'config/deploy/import'
load 'config/deploy/gem_eval'

defunkt

desc "Shrink the js"
task :minimize_js, :roles => :app, :except => { :no_release => true } do
  require 'lib/js_minimizer'
  paths  = []
  paths += Dir['public/javascripts/jquery.*.js'].sort
  paths += Dir['public/javascripts/github.*.js'].sort
  paths  = paths.flatten

  put JSMinimizer.minimize_files(*paths), "#{release_path}/public/javascripts/bundle.js"
end

defunkt

desc "Shrink and bundle js and css"
task :bundle, :roles => :app, :except => { :no_release => true } do
  run "cd #{current_path}; RAILS_ROOT=#{current_path} rake bundle:all"
end

defunkt

Poor Man's Deploy

• Start a Sinatra server on port 4000
• GET / to that server triggers a git pull and mod_rails restart
• Hit port 4000 locally after pushing

Why?

defunkt

RAILS_ROOT ||= ENV["RAILS_ROOT"]

namespace :bundle do
  task :all => [ :js, :gist_js, :css ]

  task :js do
    require 'lib/js_minimizer'
    paths  = []
    paths += Dir[RAILS_ROOT + '/public/javascripts/jquery.*.js'].sort
    paths += Dir[RAILS_ROOT + '/public/javascripts/github.*.js'].sort

defunkt

# 9 workers and 1 master
worker_processes 9

# Load rails+github.git into the master before forking workers
# for super-fast worker spawn times
preload_app true

# Restart any workers that haven't responded in 30 seconds
timeout 30

defunkt

after_fork do |server, worker|
  ##
  # Set the listening HTTP port for each of the workers dynamically

  port = 5000 + worker.nr

  begin
    server.listen("127.0.0.1:#{port}")
  rescue Errno::EADDRINUSE
    # we couldn't grab the port we want so just keep

defunkt

# port 3000 is haproxy
upstream github {
    server 127.0.0.1:3000;
}

# unicorn master opens a unix domain socket
upstream github {
    server unix:/data/github/current/tmp/sockets/unicorn.sock;
}