+++ /dev/null
-require 'active_support'
-require 'optparse'
-require 'socket'
-require 'fileutils'
-
-def daemonize #:nodoc:
- exit if fork # Parent exits, child continues.
- Process.setsid # Become session leader.
- exit if fork # Zap session leader. See [1].
-# Dir.chdir "/" # Release old working directory.
- File.umask 0000 # Ensure sensible umask. Adjust as needed.
- STDIN.reopen "/dev/null" # Free file descriptors and
- STDOUT.reopen "/dev/null", "a" # point them somewhere sensible.
- STDERR.reopen STDOUT # STDOUT/ERR should better go to a logfile.
-end
-
-class Spawner
- def self.record_pid(name = "#{OPTIONS[:process]}.spawner", id = Process.pid)
- FileUtils.mkdir_p(OPTIONS[:pids])
- File.open(File.expand_path(OPTIONS[:pids] + "/#{name}.pid"), "w+") { |f| f.write(id) }
- end
-
- def self.spawn_all
- OPTIONS[:instances].times do |i|
- port = OPTIONS[:port] + i
- print "Checking if something is already running on #{OPTIONS[:address]}:#{port}..."
-
- begin
- srv = TCPServer.new(OPTIONS[:address], port)
- srv.close
- srv = nil
-
- puts "NO"
- puts "Starting dispatcher on port: #{OPTIONS[:address]}:#{port}"
-
- FileUtils.mkdir_p(OPTIONS[:pids])
- spawn(port)
- rescue
- puts "YES"
- end
- end
- end
-end
-
-class FcgiSpawner < Spawner
- def self.spawn(port)
- cmd = "#{OPTIONS[:spawner]} -f #{OPTIONS[:dispatcher]} -p #{port} -P #{OPTIONS[:pids]}/#{OPTIONS[:process]}.#{port}.pid"
- cmd << " -a #{OPTIONS[:address]}" if can_bind_to_custom_address?
- system(cmd)
- end
-
- def self.can_bind_to_custom_address?
- @@can_bind_to_custom_address ||= /^\s-a\s/.match `#{OPTIONS[:spawner]} -h`
- end
-end
-
-class MongrelSpawner < Spawner
- def self.spawn(port)
- cmd =
- "mongrel_rails start -d " +
- "-a #{OPTIONS[:address]} " +
- "-p #{port} " +
- "-P #{OPTIONS[:pids]}/#{OPTIONS[:process]}.#{port}.pid " +
- "-e #{OPTIONS[:environment]} " +
- "-c #{OPTIONS[:rails_root]} " +
- "-l #{OPTIONS[:rails_root]}/log/mongrel.log"
-
- # Add prefix functionality to spawner's call to mongrel_rails
- # Digging through mongrel's project subversion server, the earliest
- # Tag that has prefix implemented in the bin/mongrel_rails file
- # is 0.3.15 which also happens to be the earliest tag listed.
- # References: http://mongrel.rubyforge.org/svn/tags
- if Mongrel::Const::MONGREL_VERSION.to_f >=0.3 && !OPTIONS[:prefix].nil?
- cmd = cmd + " --prefix #{OPTIONS[:prefix]}"
- end
- system(cmd)
- end
-
- def self.can_bind_to_custom_address?
- true
- end
-end
-
-
-begin
- require_library_or_gem 'fcgi'
-rescue Exception
- # FCGI not available
-end
-
-begin
- require_library_or_gem 'mongrel'
-rescue Exception
- # Mongrel not available
-end
-
-server = case ARGV.first
- when "fcgi", "mongrel"
- ARGV.shift
- else
- if defined?(Mongrel)
- "mongrel"
- elsif RUBY_PLATFORM !~ /(:?mswin|mingw)/ && !silence_stderr { `spawn-fcgi -version` }.blank? && defined?(FCGI)
- "fcgi"
- end
-end
-
-case server
- when "fcgi"
- puts "=> Starting FCGI dispatchers"
- spawner_class = FcgiSpawner
- when "mongrel"
- puts "=> Starting mongrel dispatchers"
- spawner_class = MongrelSpawner
- else
- puts "Neither FCGI (spawn-fcgi) nor Mongrel was installed and available!"
- exit(0)
-end
-
-
-
-OPTIONS = {
- :environment => "production",
- :spawner => '/usr/bin/env spawn-fcgi',
- :dispatcher => File.expand_path(RELATIVE_RAILS_ROOT + '/public/dispatch.fcgi'),
- :pids => File.expand_path(RELATIVE_RAILS_ROOT + "/tmp/pids"),
- :rails_root => File.expand_path(RELATIVE_RAILS_ROOT),
- :process => "dispatch",
- :port => 8000,
- :address => '0.0.0.0',
- :instances => 3,
- :repeat => nil,
- :prefix => nil
-}
-
-ARGV.options do |opts|
- opts.banner = "Usage: spawner [platform] [options]"
-
- opts.separator ""
-
- opts.on <<-EOF
- Description:
- The spawner is a wrapper for spawn-fcgi and mongrel that makes it
- easier to start multiple processes running the Rails dispatcher. The
- spawn-fcgi command is included with the lighttpd web server, but can
- be used with both Apache and lighttpd (and any other web server
- supporting externally managed FCGI processes). Mongrel automatically
- ships with with mongrel_rails for starting dispatchers.
-
- The first choice you need to make is whether to spawn the Rails
- dispatchers as FCGI or Mongrel. By default, this spawner will prefer
- Mongrel, so if that's installed, and no platform choice is made,
- Mongrel is used.
-
- Then decide a starting port (default is 8000) and the number of FCGI
- process instances you'd like to run. So if you pick 9100 and 3
- instances, you'll start processes on 9100, 9101, and 9102.
-
- By setting the repeat option, you get a protection loop, which will
- attempt to restart any FCGI processes that might have been exited or
- outright crashed.
-
- You can select bind address for started processes. By default these
- listen on every interface. For single machine installations you would
- probably want to use 127.0.0.1, hiding them form the outside world.
-
- Examples:
- spawner # starts instances on 8000, 8001, and 8002
- # using Mongrel if available.
- spawner fcgi # starts instances on 8000, 8001, and 8002
- # using FCGI.
- spawner mongrel -i 5 # starts instances on 8000, 8001, 8002,
- # 8003, and 8004 using Mongrel.
- spawner -p 9100 -i 10 # starts 10 instances counting from 9100 to
- # 9109 using Mongrel if available.
- spawner -p 9100 -r 5 # starts 3 instances counting from 9100 to
- # 9102 and attempts start them every 5
- # seconds.
- spawner -a 127.0.0.1 # starts 3 instances binding to localhost
- EOF
-
- opts.on(" Options:")
-
- opts.on("-p", "--port=number", Integer, "Starting port number (default: #{OPTIONS[:port]})") { |v| OPTIONS[:port] = v }
-
- if spawner_class.can_bind_to_custom_address?
- opts.on("-a", "--address=ip", String, "Bind to IP address (default: #{OPTIONS[:address]})") { |v| OPTIONS[:address] = v }
- end
-
- opts.on("-p", "--port=number", Integer, "Starting port number (default: #{OPTIONS[:port]})") { |v| OPTIONS[:port] = v }
- opts.on("-i", "--instances=number", Integer, "Number of instances (default: #{OPTIONS[:instances]})") { |v| OPTIONS[:instances] = v }
- opts.on("-r", "--repeat=seconds", Integer, "Repeat spawn attempts every n seconds (default: off)") { |v| OPTIONS[:repeat] = v }
- opts.on("-e", "--environment=name", String, "test|development|production (default: #{OPTIONS[:environment]})") { |v| OPTIONS[:environment] = v }
- opts.on("-P", "--prefix=path", String, "URL prefix for Rails app. [Used only with Mongrel > v0.3.15]: (default: #{OPTIONS[:prefix]})") { |v| OPTIONS[:prefix] = v }
- opts.on("-n", "--process=name", String, "default: #{OPTIONS[:process]}") { |v| OPTIONS[:process] = v }
- opts.on("-s", "--spawner=path", String, "default: #{OPTIONS[:spawner]}") { |v| OPTIONS[:spawner] = v }
- opts.on("-d", "--dispatcher=path", String, "default: #{OPTIONS[:dispatcher]}") { |dispatcher| OPTIONS[:dispatcher] = File.expand_path(dispatcher) }
-
- opts.separator ""
-
- opts.on("-h", "--help", "Show this help message.") { puts opts; exit }
-
- opts.parse!
-end
-
-ENV["RAILS_ENV"] = OPTIONS[:environment]
-
-if OPTIONS[:repeat]
- daemonize
- trap("TERM") { exit }
- spawner_class.record_pid
-
- loop do
- spawner_class.spawn_all
- sleep(OPTIONS[:repeat])
- end
-else
- spawner_class.spawn_all
-end
projects / rails.git / blobdiff