93 lines
3.4 KiB
Ruby
93 lines
3.4 KiB
Ruby
#rails_env = ENV['RAILS_ENV'] || 'production'
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worker_processes 4
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preload_app true
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#working_directory "/path/to/app/current" # available in 0.94.0+
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listen '/tmp/rosa_build.sock', :backlog => 2048
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#listen "/tmp/.sock", :backlog => 64
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#listen 8080, :tcp_nopush => true
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#
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#nuke workers after 30 seconds instead of 60 seconds (the default)
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timeout 120
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#
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#feel free to point this anywhere accessible on the filesystem
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pid "/var/www/rosa_build/current/tmp/pids/unicorn.pid"
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#
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# REE
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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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# By default, the Unicorn logger will write to stderr.
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# Additionally, ome applications/frameworks log to stderr or stdout,
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# so prevent them from going to /dev/null when daemonized here:
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stderr_path "/var/www/rosa_build/shared/log/unicorn.stderr.log"
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stdout_path "/var/www/rosa_build/shared/log/unicorn.stdout.log"
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# combine REE with "preload_app true" for memory savings
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# http://rubyenterpriseedition.com/faq.html#adapt_apps_for_cow
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preload_app true
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before_fork do |server, worker|
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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 = '/var/www/rosa_build/current/tmp/pids/unicorn.pid.oldbin'
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if File.exists?(old_pid) && server.pid != old_pid
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begin
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Process.kill("QUIT", 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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before_fork do |server, worker|
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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 = File.expand_path(File.join(File.dirname(__FILE__), "..")) + '/tmp/pids/unicorn.pid.oldbin'
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if File.exists?(old_pid) && server.pid != old_pid
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begin
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Process.kill("QUIT", 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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# This option works in together with preload_app true setting
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# What is does is prevent the master process from holding
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# the database connection
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defined?(ActiveRecord::Base) and ActiveRecord::Base.connection.disconnect!
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end
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after_fork do |server, worker|
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# Here we are establishing the connection after forking worker processes
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defined?(ActiveRecord::Base) and ActiveRecord::Base.establish_connection
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# if preload_app is true, then you may also want to check and
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# restart any other shared sockets/descriptors such as Memcached,
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# and Redis. TokyoCabinet file handles are safe to reuse
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# between any number of forked children (assuming your kernel
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# correctly implements pread()/pwrite() system calls)
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srand
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end
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