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Contents
# Unicorn configuration
APP_ROOT = File.expand_path('../..', __FILE__)
require 'dotenv'
Dotenv.load
if ENV['UNICORN_BEHIND_NGINX']
listen '/tmp/unicorn.<%= @config.app_name %>.sock'
else
listen Integer(ENV['UNICORN_PORT'] || 3000)
end
worker_processes Integer(ENV['UNICORN_WORKERS'] || 1)
timeout Integer(ENV['UNICORN_TIMEOUT'] || 60)
working_directory APP_ROOT
pid "#{APP_ROOT}/tmp/pids/unicorn.pid"
stderr_path "#{APP_ROOT}/log/unicorn.log"
stdout_path "/#{APP_ROOT}/log/unicorn.log"
# load the application in the master process before forking worker processes
preload_app true
GC.respond_to?(:copy_on_write_friendly=) and GC.copy_on_write_friendly = true
before_fork do |server, worker|
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 = "#{APP_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
after_fork do |server, worker|
defined?(ActiveRecord::Base) and ActiveRecord::Base.establish_connection
end
Version data entries
33 entries across 33 versions & 1 rubygems