67 lines
2.3 KiB
Plaintext
67 lines
2.3 KiB
Plaintext
# path to app dir
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app_dir = "/home/the/e2s/"
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worker_processes 2
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working_directory app_dir
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# Load app into the master before forking workers for super-fast
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# worker spawn times
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preload_app true
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# nuke workers after 30 seconds (60 is the default)
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timeout 30
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# listen on a Unix domain socket and/or a TCP port,
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#listen 8080 # listen to port 8080 on all TCP interfaces
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#listen "127.0.0.1:8080" # listen to port 8080 on the loopback interface
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listen "#{app_dir}/tmp/sockets/e2s.socket"
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pid "#{app_dir}/tmp/pids/unicorn.pid"
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stderr_path "#{app_dir}/log/unicorn.stderr.log"
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stdout_path "#{app_dir}/log/unicorn.stdout.log"
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# http://www.rubyenterpriseedition.com/faq.html#adapt_apps_for_cow
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if GC.respond_to?(:copy_on_write_friendly=)
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GC.copy_on_write_friendly = true
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end
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before_fork do |server, worker|
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# the following is highly recomended for Rails + "preload_app true"
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# as there's no need for the master process to hold a connection
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# defined?(ActiveRecord::Base) and ActiveRecord::Base.connection.disconnect!
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##
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# When sent a USR2, Unicorn will suffix its pidfile with .oldbin and
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# immediately start loading up a new version of itself (loaded with a new
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# version of our app). When this new Unicorn is completely loaded
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# it will begin spawning workers. The first worker spawned will check to
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# see if an .oldbin pidfile exists. If so, this means we've just booted up
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# a new Unicorn and need to tell the old one that it can now die. To do so
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# we send it a QUIT.
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#
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# Using this method we get 0 downtime deploys.
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old_pid = "#{server.config[:pid]}.oldbin"
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if File.exists?(old_pid) && server.pid != old_pid
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begin
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sig = (worker.nr + 1) >= server.worker_processes ? :QUIT : :TTOU
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Process.kill(sig, File.read(old_pid).to_i)
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rescue Errno::ENOENT, Errno::ESRCH
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# someone else did our job for us
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end
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end
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end
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after_fork do |server, worker|
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# Unicorn master loads the app then forks off workers - because of the way
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# Unix forking works, we need to make sure we aren't using any of the parent's
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# sockets, e.g. db connection
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# defined?(ActiveRecord::Base) and ActiveRecord::Base.establish_connection
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# Redis and Memcached would go here but their connections are established
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# on demand, so the master never opens a socket
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end
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