unicorn config for Rails dev with nginx

unicorn.rb

# See http://unicorn.bogomips.org/Unicorn/Configurator.html for complete
# documentation.

application_root = File.expand_path(File.join(File.dirname(__FILE__), '..'))

preload_app true
worker_processes 1
working_directory application_root

listen File.join(application_root, "tmp/sockets/unicorn.sock"), :backlog => 64
pid    File.join(application_root, "tmp/pids/unicorn.pid")

#stderr_path File.join(application_root, "log/unicorn.stderr.log")
#stdout_path File.join(application_root, "log/unicorn.stdout.log")

GC.respond_to?(:copy_on_write_friendly=) and
  GC.copy_on_write_friendly = true

before_fork do |server, worker|
  # the following is highly recomended for Rails + "preload_app true"
  # as there's no need for the master process to hold a connection
  defined?(ActiveRecord::Base) and
    ActiveRecord::Base.connection.disconnect!
end

after_fork do |server, worker|
  # per-process listener ports for debugging/admin/migrations
  # addr = "127.0.0.1:#{9293 + worker.nr}"
  # server.listen(addr, :tries => -1, :delay => 5, :tcp_nopush => true)

  # the following is *required* for Rails + "preload_app true",
  defined?(ActiveRecord::Base) and
    ActiveRecord::Base.establish_connection

  # if preload_app is true, then you may also want to check and
  # restart any other shared sockets/descriptors such as Memcached,
  # and Redis.  TokyoCabinet file handles are safe to reuse
  # between any number of forked children (assuming your kernel
  # correctly implements pread()/pwrite() system calls)
end