gistfile1.rb

# unicorn_rails -c uni.rb -E production -D
 
rails_env = ENV['RAILS_ENV'] || 'production'
 
# 16 workers and 1 master
worker_processes (rails_env == 'production' ? 16 : 4)
 
# 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
 
# Listen on a Unix data socket
#listen '/data/github/current/tmp/sockets/unicorn.sock', :backlog => 2048
 
 
##
# REE
 
# http://www.rubyenterpriseedition.com/faq.html#adapt_apps_for_cow
if GC.respond_to?(:copy_on_write_friendly=)
  GC.copy_on_write_friendly = true
end
 
 
before_fork do |server, worker|
  ##
  # When sent a USR2, Unicorn will suffix its pidfile with .oldbin and
  # immediately start loading up a new version of itself (loaded with a new
  # version of our app). When this new Unicorn is completely loaded
  # it will begin spawning workers. The first worker spawned will check to
  # see if an .oldbin pidfile exists. If so, this means we've just booted up
  # a new Unicorn and need to tell the old one that it can now die. To do so
  # we send it a QUIT.
  #
  # Using this method we get 0 downtime deploys.
 
  old_pid = RAILS_ROOT + '/tmp/pids/unicorn.pid.oldbin'
  if File.exists?(old_pid) && server.pid != old_pid
    begin
      Process.kill("QUIT", File.read(old_pid).to_i)
    rescue Errno::ENOENT, Errno::ESRCH
      # someone else did our job for us
    end
  end
end



ass_start = lambda do
  require "vendor/gems/services/versapay.rb"
  settings = defined?(AMQP_SETTINGS) ? AMQP_SETTINGS : {}

  # Set vhost to current db name when a TEST_ENV_NUMBER is set – '/' otherwise
  settings[:vhost] = ActiveRecord::Base.connection.current_database if ENV['TEST_ENV_NUMBER']

  ass_format = ASS::BERT
  
  th = Thread.current
  Thread.new{
    ASS.start(settings.merge(:format => ass_format)) {
      th.wakeup
    }
  } 
  Thread.stop
end

after_fork do |server, worker|
  ##
  # Unicorn master loads the app then forks off workers - because of the way
  # Unix forking works, we need to make sure we aren't using any of the parent's
  # sockets, e.g. db connection
 
  ActiveRecord::Base.establish_connection
  ass_start.call
  
  #CHIMNEY.client.connect_to_server
  # Redis and Memcached would go here but their connections are established
  # on demand, so the master never opens a socket
 
 
  ##
  # Unicorn master is started as root, which is fine, but let's
  # drop the workers to git:git
 
  # begin
#     uid, gid = Process.euid, Process.egid
#     user, group = 'git', 'git'
#     target_uid = Etc.getpwnam(user).uid
#     target_gid = Etc.getgrnam(group).gid
#     worker.tmp.chown(target_uid, target_gid)
#     if uid != target_uid || gid != target_gid
#       Process.initgroups(user, target_gid)
#       Process::GID.change_privilege(target_gid)
#       Process::UID.change_privilege(target_uid)
#     end
#   rescue => e
#     if RAILS_ENV == 'development'
#       STDERR.puts "couldn't change user, oh well"
#     else
#       raise e
#     end
#   end
  
end