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| require "redis" | |
| worker_processes 8 | |
| preload_app true | |
| timeout 600 | |
| listen '/tmp/vodeclic.sock', :backlog => 1024 | |
| pid '/tmp/vodeclic.pid' | |
| ## | |
| # REE | |
| # 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_exec do |server| | |
| ENV["BUNDLE_GEMFILE"] = "/home/vodeclic/public_html/vodeclic/current/Gemfile" | |
| end | |
| before_fork do |server, worker| | |
| ## | |
| # 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. | |
| # Disconnect since the database connection will not carry over | |
| if defined? ActiveRecord::Base | |
| ActiveRecord::Base.connection_handler.clear_all_connections! | |
| end | |
| old_pid = '/tmp/vodeclic.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| | |
| ## | |
| # 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 | |
| # Start up the database connection again in the worker | |
| if defined?(ActiveRecord::Base) | |
| ActiveRecord::Base.establish_connection | |
| end | |
| #CHIMNEY.client.connect_to_server | |
| # Redis and Memcached would go here but their connections are established | |
| # on demand, so the master never opens a socket | |
| if Rails.cache.is_a?(ActiveSupport::Cache::MemCacheStore) | |
| Rails.cache.instance_variable_get(:@data).reset | |
| end | |
| Redis.current.quit | |
| ## | |
| # Unicorn master is started as root, which is fine, but let's | |
| # drop the workers to git:git | |
| begin | |
| uid, gid = Process.euid, Process.egid | |
| user, group = 'vodeclic', 'vodeclic' | |
| target_uid = Etc.getpwnam(user).uid | |
| target_gid = Etc.getgrnam(group).gid | |
| worker.tmp.chown(target_uid, target_gid) | |
| if uid != target_uid || gid != target_gid | |
| Process.initgroups(user, target_gid) | |
| Process::GID.change_privilege(target_gid) | |
| Process::UID.change_privilege(target_uid) | |
| end | |
| rescue => e | |
| if RAILS_ENV == 'development' | |
| STDERR.puts "couldn't change user, oh well" | |
| else | |
| raise e | |
| end | |
| end | |
| end |
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