name : meteor-loader.rb #!/opt/cpanel/ea-ruby27/root/usr/bin/ruby # encoding: binary # Phusion Passenger - https://www.phusionpassenger.com/ # Copyright (c) 2010-2017 Phusion Holding B.V. # # "Passenger", "Phusion Passenger" and "Union Station" are registered # trademarks of Phusion Holding B.V. # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to deal # in the Software without restriction, including without limitation the rights # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell # copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included in # all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN # THE SOFTWARE. require 'socket' require 'thread' require 'logger' module PhusionPassenger module App def self.options @@options ||= {} return @@options end def self.try_write_file(path, contents) begin File.open(path, 'wb') do |f| f.write(contents) end rescue SystemCallError => e STDERR.puts "Warning: unable to write to #{path}: #{e}" end end def self.record_journey_step_begin(step, state, work_dir = nil) dir = work_dir || ENV['PASSENGER_SPAWN_WORK_DIR'] step_dir = "#{dir}/response/steps/#{step.downcase}" try_write_file("#{step_dir}/state", state) try_write_file("#{step_dir}/begin_time", Time.now.to_f) end def self.record_journey_step_end(step, state, work_dir = nil) dir = work_dir || ENV['PASSENGER_SPAWN_WORK_DIR'] step_dir = "#{dir}/response/steps/#{step.downcase}" try_write_file("#{step_dir}/state", state) if !File.exist?("#{step_dir}/begin_time") && !File.exist?("#{step_dir}/begin_time_monotonic") try_write_file("#{step_dir}/begin_time", Time.now.to_f) end try_write_file("#{step_dir}/end_time", Time.now.to_f) end def self.init_logging logger = Logger.new(STDOUT) logger.level = Logger::WARN logger.formatter = proc do |severity, datetime, progname, msg| "[ pid=#{Process.pid}, time=#{datetime} ]: #{msg.message}" end end def self.read_startup_arguments work_dir = ENV['PASSENGER_SPAWN_WORK_DIR'] @@options = File.open("#{work_dir}/args.json", 'rb') do |f| Utils::JSON.parse(f.read) end end def self.advertise_port(port) work_dir = ENV['PASSENGER_SPAWN_WORK_DIR'] path = work_dir + '/response/properties.json' doc = { 'sockets': [{ 'name': 'main', 'address': "tcp://127.0.0.1:#{port}", 'protocol': 'http', 'concurrency': 0, 'accept_http_requests': true }] } File.write(path, Utils::JSON.generate(doc)) end def self.advertise_readiness work_dir = ENV['PASSENGER_SPAWN_WORK_DIR'] path = work_dir + '/response/finish' File.write(path, '1') end def self.init_passenger STDOUT.sync = true STDERR.sync = true work_dir = ENV['PASSENGER_SPAWN_WORK_DIR'].to_s if work_dir.empty? abort "This program may only be invoked from Passenger (error: $PASSENGER_SPAWN_WORK_DIR not set)." end ruby_libdir = File.read("#{work_dir}/args/ruby_libdir").strip passenger_root = File.read("#{work_dir}/args/passenger_root").strip require "#{ruby_libdir}/phusion_passenger" PhusionPassenger.locate_directories(passenger_root) PhusionPassenger.require_passenger_lib 'loader_shared_helpers' PhusionPassenger.require_passenger_lib 'preloader_shared_helpers' PhusionPassenger.require_passenger_lib 'utils/json' require 'socket' end def self.ping_port(port) socket_domain = Socket::Constants::AF_INET sockaddr = Socket.pack_sockaddr_in(port, '127.0.0.1') begin socket = Socket.new(socket_domain, Socket::Constants::SOCK_STREAM, 0) begin socket.connect_nonblock(sockaddr) rescue Errno::ENOENT, Errno::EINPROGRESS, Errno::EAGAIN, Errno::EWOULDBLOCK if select(nil, [socket], nil, 0.1) begin socket.connect_nonblock(sockaddr) rescue Errno::EISCONN end else raise Errno::ECONNREFUSED end end return true rescue Errno::ECONNREFUSED, Errno::ENOENT return false ensure socket.close if socket end end def self.load_app port = nil tries = 0 while port.nil? && tries < 200 port = 1024 + rand(9999) if ping_port(port) || ping_port(port + 1) || ping_port(port + 2) port = nil tries += 1 end end if port.nil? abort "Cannot find a suitable port to start Meteor on" end production = options["environment"] == "production" ? "--production" : "" pid = fork do # Meteor is quite !@#$% here: if we kill its start script # with *any* signal, it'll leave a ton of garbage processes # around. Apparently it expects the user to press Ctrl-C in a # terminal which happens to send a signal to all processes # in the session. We emulate that behavior here by giving # Meteor its own process group, and sending signals to the # entire process group. Process.setpgrp if options["environment"] == "production" logger.warn("Warning: meteor running in simulated production mode (--production). For real production use, bundle your app.") end if options["meteor_app_settings"] PhusionPassenger.require_passenger_lib 'utils/shellwords' app_settings_file = Shellwords.escape(options["meteor_app_settings"]) logger.info("Using application settings from file #{app_settings_file}") exec("meteor run -p #{port} --settings #{app_settings_file} #{production}") else exec("meteor run -p #{port} #{production}") end exec("meteor run -p #{port} #{production} --settings settings.json") end $0 = options["process_title"] if options["process_title"] $0 = "#{$0} (#{pid})" return [pid, port] end def self.wait_for_exit_message begin STDIN.readline rescue EOFError end end ################## Main code ################## init_passenger init_logging record_journey_step_end('SUBPROCESS_EXEC_WRAPPER', 'STEP_PERFORMED') record_journey_step_begin('SUBPROCESS_WRAPPER_PREPARATION', 'STEP_IN_PROGRESS') begin read_startup_arguments rescue Exception record_journey_step_end('SUBPROCESS_WRAPPER_PREPARATION', 'STEP_ERRORED') raise else record_journey_step_end('SUBPROCESS_WRAPPER_PREPARATION', 'STEP_PERFORMED') end record_journey_step_begin('SUBPROCESS_APP_LOAD_OR_EXEC', 'STEP_IN_PROGRESS') begin pid, port = load_app rescue Exception record_journey_step_end('SUBPROCESS_APP_LOAD_OR_EXEC', 'STEP_ERRORED') raise else record_journey_step_end('SUBPROCESS_APP_LOAD_OR_EXEC', 'STEP_PERFORMED') end record_journey_step_begin('SUBPROCESS_LISTEN', 'STEP_IN_PROGRESS') begin while !ping_port(port) sleep 0.01 end rescue Exception record_journey_step_end('SUBPROCESS_LISTEN', 'STEP_ERRORED') raise else record_journey_step_end('SUBPROCESS_LISTEN', 'STEP_PERFORMED') end advertise_port(port) advertise_readiness begin wait_for_exit_message ensure if pid Process.kill('INT', -pid) rescue nil Process.waitpid(pid) rescue nil Process.kill('INT', -pid) rescue nil end end end # module App end # module PhusionPassenger