app_dir = "/home/gitlab/gitlab/" worker_processes 2 working_directory app_dir # Load app into the master before forking workers for super-fast # worker spawn times preload_app true # nuke workers after 60 seconds (the default) timeout 30 # listen on a Unix domain socket and/or a TCP port, #listen 8080 # listen to port 8080 on all TCP interfaces #listen "127.0.0.1:8080" # listen to port 8080 on the loopback interface listen "/tmp/gitlab.socket" pid "#{app_dir}/pids/unicorn.pid" stderr_path "#{app_dir}/log/unicorn.stderr.log" stdout_path "#{app_dir}/log/unicorn.stdout.log" # 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| # 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! ## # 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 = "#{server.config[:pid]}.oldbin" if File.exists?(old_pid) && server.pid != old_pid begin sig = (worker.nr + 1) >= server.worker_processes ? :QUIT : :TTOU Process.kill(sig, File.read(old_pid).to_i) rescue Errno::ENOENT, Errno::ESRCH # someone else did our job for us end end 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 defined?(ActiveRecord::Base) and ActiveRecord::Base.establish_connection # Redis and Memcached would go here but their connections are established # on demand, so the master never opens a socket end