mirror of
https://github.com/mperham/sidekiq.git
synced 2022-11-09 13:52:34 -05:00
445 lines
13 KiB
Ruby
445 lines
13 KiB
Ruby
# frozen_string_literal: true
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$stdout.sync = true
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require 'yaml'
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require 'singleton'
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require 'optparse'
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require 'erb'
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require 'fileutils'
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require 'sidekiq'
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require 'sidekiq/util'
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module Sidekiq
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class CLI
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include Util
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include Singleton unless $TESTING
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PROCTITLES = [
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proc { 'sidekiq' },
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proc { Sidekiq::VERSION },
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proc { |me, data| data['tag'] },
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proc { |me, data| "[#{Processor::WORKER_STATE.size} of #{data['concurrency']} busy]" },
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proc { |me, data| "stopping" if me.stopping? },
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]
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# Used for CLI testing
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attr_accessor :code
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attr_accessor :launcher
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attr_accessor :environment
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def initialize
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@code = nil
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end
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def parse(args=ARGV)
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@code = nil
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setup_options(args)
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initialize_logger
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validate!
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daemonize
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write_pid
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end
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def jruby?
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defined?(::JRUBY_VERSION)
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end
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# Code within this method is not tested because it alters
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# global process state irreversibly. PRs which improve the
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# test coverage of Sidekiq::CLI are welcomed.
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def run
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boot_system
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print_banner
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self_read, self_write = IO.pipe
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sigs = %w(INT TERM TTIN TSTP)
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# USR1 and USR2 don't work on the JVM
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if !jruby?
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sigs << 'USR1'
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sigs << 'USR2'
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end
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sigs.each do |sig|
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begin
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trap sig do
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self_write.write("#{sig}\n")
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end
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rescue ArgumentError
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puts "Signal #{sig} not supported"
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end
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end
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logger.info "Running in #{RUBY_DESCRIPTION}"
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logger.info Sidekiq::LICENSE
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logger.info "Upgrade to Sidekiq Pro for more features and support: http://sidekiq.org" unless defined?(::Sidekiq::Pro)
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# touch the connection pool so it is created before we
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# fire startup and start multithreading.
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ver = Sidekiq.redis_info['redis_version']
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raise "You are using Redis v#{ver}, Sidekiq requires Redis v2.8.0 or greater" if ver < '2.8'
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# Since the user can pass us a connection pool explicitly in the initializer, we
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# need to verify the size is large enough or else Sidekiq's performance is dramatically slowed.
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cursize = Sidekiq.redis_pool.size
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needed = Sidekiq.options[:concurrency] + 2
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raise "Your pool of #{cursize} Redis connections is too small, please increase the size to at least #{needed}" if cursize < needed
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# cache process identity
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Sidekiq.options[:identity] = identity
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# Touch middleware so it isn't lazy loaded by multiple threads, #3043
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Sidekiq.server_middleware
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# Before this point, the process is initializing with just the main thread.
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# Starting here the process will now have multiple threads running.
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fire_event(:startup, reverse: false, reraise: true)
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logger.debug { "Client Middleware: #{Sidekiq.client_middleware.map(&:klass).join(', ')}" }
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logger.debug { "Server Middleware: #{Sidekiq.server_middleware.map(&:klass).join(', ')}" }
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if !options[:daemon]
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logger.info 'Starting processing, hit Ctrl-C to stop'
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end
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require 'sidekiq/launcher'
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@launcher = Sidekiq::Launcher.new(options)
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begin
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launcher.run
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while readable_io = IO.select([self_read])
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signal = readable_io.first[0].gets.strip
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handle_signal(signal)
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end
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rescue Interrupt
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logger.info 'Shutting down'
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launcher.stop
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# Explicitly exit so busy Processor threads can't block
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# process shutdown.
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logger.info "Bye!"
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exit(0)
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end
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end
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def self.banner
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%q{
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m,
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`$b
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.ss, $$: .,d$
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`$$P,d$P' .,md$P"'
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,$$$$$bmmd$$$P^'
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.d$$$$$$$$$$P'
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$$^' `"^$$$' ____ _ _ _ _
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$: ,$$: / ___|(_) __| | ___| | _(_) __ _
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`b :$$ \___ \| |/ _` |/ _ \ |/ / |/ _` |
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$$: ___) | | (_| | __/ <| | (_| |
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$$ |____/|_|\__,_|\___|_|\_\_|\__, |
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.d$$ |_|
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}
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end
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SIGNAL_HANDLERS = {
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# Ctrl-C in terminal
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'INT' => ->(cli) { raise Interrupt },
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# TERM is the signal that Sidekiq must exit.
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# Heroku sends TERM and then waits 30 seconds for process to exit.
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'TERM' => ->(cli) { raise Interrupt },
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'USR1' => ->(cli) {
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Sidekiq.logger.info "Received USR1, no longer accepting new work"
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cli.launcher.quiet
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},
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'TSTP' => ->(cli) {
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Sidekiq.logger.info "Received TSTP, no longer accepting new work"
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cli.launcher.quiet
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},
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'USR2' => ->(cli) {
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if Sidekiq.options[:logfile]
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Sidekiq.logger.info "Received USR2, reopening log file"
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Sidekiq::Logging.reopen_logs
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end
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},
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'TTIN' => ->(cli) {
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Thread.list.each do |thread|
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Sidekiq.logger.warn "Thread TID-#{(thread.object_id ^ ::Process.pid).to_s(36)} #{thread['sidekiq_label']}"
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if thread.backtrace
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Sidekiq.logger.warn thread.backtrace.join("\n")
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else
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Sidekiq.logger.warn "<no backtrace available>"
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end
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end
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},
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}
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def handle_signal(sig)
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Sidekiq.logger.debug "Got #{sig} signal"
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handy = SIGNAL_HANDLERS[sig]
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if handy
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handy.call(self)
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else
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Sidekiq.logger.info { "No signal handler for #{sig}" }
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end
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end
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private
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def print_banner
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# Print logo and banner for development
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if environment == 'development' && $stdout.tty?
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puts "\e[#{31}m"
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puts Sidekiq::CLI.banner
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puts "\e[0m"
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end
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end
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def daemonize
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return unless options[:daemon]
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raise ArgumentError, "You really should set a logfile if you're going to daemonize" unless options[:logfile]
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files_to_reopen = []
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ObjectSpace.each_object(File) do |file|
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files_to_reopen << file unless file.closed?
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end
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::Process.daemon(true, true)
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files_to_reopen.each do |file|
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begin
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file.reopen file.path, "a+"
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file.sync = true
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rescue ::Exception
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end
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end
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[$stdout, $stderr].each do |io|
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File.open(options[:logfile], 'ab') do |f|
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io.reopen(f)
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end
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io.sync = true
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end
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$stdin.reopen('/dev/null')
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initialize_logger
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end
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def set_environment(cli_env)
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@environment = cli_env || ENV['RAILS_ENV'] || ENV['RACK_ENV'] || 'development'
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end
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def symbolize_keys_deep!(hash)
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hash.keys.each do |k|
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symkey = k.respond_to?(:to_sym) ? k.to_sym : k
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hash[symkey] = hash.delete k
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symbolize_keys_deep! hash[symkey] if hash[symkey].kind_of? Hash
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end
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end
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alias_method :die, :exit
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alias_method :☠, :exit
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def setup_options(args)
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opts = parse_options(args)
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set_environment opts[:environment]
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cfile = opts[:config_file]
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opts = parse_config(cfile).merge(opts) if cfile
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opts[:strict] = true if opts[:strict].nil?
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opts[:concurrency] = Integer(ENV["RAILS_MAX_THREADS"]) if !opts[:concurrency] && ENV["RAILS_MAX_THREADS"]
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options.merge!(opts)
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end
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def options
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Sidekiq.options
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end
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def boot_system
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ENV['RACK_ENV'] = ENV['RAILS_ENV'] = environment
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raise ArgumentError, "#{options[:require]} does not exist" unless File.exist?(options[:require])
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if File.directory?(options[:require])
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require 'rails'
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if ::Rails::VERSION::MAJOR < 4
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raise "Sidekiq no longer supports this version of Rails"
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elsif ::Rails::VERSION::MAJOR == 4
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# Painful contortions, see 1791 for discussion
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# No autoloading, we want to force eager load for everything.
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require File.expand_path("#{options[:require]}/config/application.rb")
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::Rails::Application.initializer "sidekiq.eager_load" do
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::Rails.application.config.eager_load = true
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end
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require 'sidekiq/rails'
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require File.expand_path("#{options[:require]}/config/environment.rb")
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else
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require 'sidekiq/rails'
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require File.expand_path("#{options[:require]}/config/environment.rb")
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end
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options[:tag] ||= default_tag
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else
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not_required_message = "#{options[:require]} was not required, you should use an explicit path: " +
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"./#{options[:require]} or /path/to/#{options[:require]}"
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require(options[:require]) || raise(ArgumentError, not_required_message)
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end
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end
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def default_tag
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dir = ::Rails.root
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name = File.basename(dir)
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if name.to_i != 0 && prevdir = File.dirname(dir) # Capistrano release directory?
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if File.basename(prevdir) == 'releases'
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return File.basename(File.dirname(prevdir))
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end
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end
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name
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end
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def validate!
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options[:queues] << 'default' if options[:queues].empty?
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if !File.exist?(options[:require]) ||
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(File.directory?(options[:require]) && !File.exist?("#{options[:require]}/config/application.rb"))
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logger.info "=================================================================="
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logger.info " Please point sidekiq to a Rails 4/5 application or a Ruby file "
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logger.info " to load your worker classes with -r [DIR|FILE]."
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logger.info "=================================================================="
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logger.info @parser
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die(1)
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end
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[:concurrency, :timeout].each do |opt|
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raise ArgumentError, "#{opt}: #{options[opt]} is not a valid value" if options.has_key?(opt) && options[opt].to_i <= 0
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end
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end
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def parse_options(argv)
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opts = {}
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@parser = OptionParser.new do |o|
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o.on '-c', '--concurrency INT', "processor threads to use" do |arg|
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opts[:concurrency] = Integer(arg)
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end
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o.on '-d', '--daemon', "Daemonize process" do |arg|
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opts[:daemon] = arg
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end
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o.on '-e', '--environment ENV', "Application environment" do |arg|
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opts[:environment] = arg
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end
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o.on '-g', '--tag TAG', "Process tag for procline" do |arg|
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opts[:tag] = arg
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end
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# this index remains here for backwards compatibility but none of the Sidekiq
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# family use this value anymore. it was used by Pro's original reliable_fetch.
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o.on '-i', '--index INT', "unique process index on this machine" do |arg|
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opts[:index] = Integer(arg.match(/\d+/)[0])
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end
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o.on "-q", "--queue QUEUE[,WEIGHT]", "Queues to process with optional weights" do |arg|
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queue, weight = arg.split(",")
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parse_queue opts, queue, weight
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end
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o.on '-r', '--require [PATH|DIR]', "Location of Rails application with workers or file to require" do |arg|
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opts[:require] = arg
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end
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o.on '-t', '--timeout NUM', "Shutdown timeout" do |arg|
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opts[:timeout] = Integer(arg)
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end
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o.on "-v", "--verbose", "Print more verbose output" do |arg|
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opts[:verbose] = arg
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end
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o.on '-C', '--config PATH', "path to YAML config file" do |arg|
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opts[:config_file] = arg
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end
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o.on '-L', '--logfile PATH', "path to writable logfile" do |arg|
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opts[:logfile] = arg
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end
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o.on '-P', '--pidfile PATH', "path to pidfile" do |arg|
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opts[:pidfile] = arg
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end
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o.on '-V', '--version', "Print version and exit" do |arg|
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puts "Sidekiq #{Sidekiq::VERSION}"
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die(0)
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end
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end
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@parser.banner = "sidekiq [options]"
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@parser.on_tail "-h", "--help", "Show help" do
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logger.info @parser
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die 1
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end
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@parser.parse!(argv)
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%w[config/sidekiq.yml config/sidekiq.yml.erb].each do |filename|
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opts[:config_file] ||= filename if File.exist?(filename)
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end
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opts
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end
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def initialize_logger
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Sidekiq::Logging.initialize_logger(options[:logfile]) if options[:logfile]
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Sidekiq.logger.level = ::Logger::DEBUG if options[:verbose]
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end
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def write_pid
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if path = options[:pidfile]
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pidfile = File.expand_path(path)
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File.open(pidfile, 'w') do |f|
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f.puts ::Process.pid
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end
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end
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end
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def parse_config(cfile)
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opts = {}
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if File.exist?(cfile)
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opts = YAML.load(ERB.new(IO.read(cfile)).result) || opts
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if opts.respond_to? :deep_symbolize_keys!
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opts.deep_symbolize_keys!
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else
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symbolize_keys_deep!(opts)
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end
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opts = opts.merge(opts.delete(environment.to_sym) || {})
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parse_queues(opts, opts.delete(:queues) || [])
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else
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# allow a non-existent config file so Sidekiq
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# can be deployed by cap with just the defaults.
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end
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ns = opts.delete(:namespace)
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if ns
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# logger hasn't been initialized yet, puts is all we have.
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puts("namespace should be set in your ruby initializer, is ignored in config file")
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puts("config.redis = { :url => ..., :namespace => '#{ns}' }")
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end
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opts
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end
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def parse_queues(opts, queues_and_weights)
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queues_and_weights.each { |queue_and_weight| parse_queue(opts, *queue_and_weight) }
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end
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def parse_queue(opts, q, weight=nil)
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[weight.to_i, 1].max.times do
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(opts[:queues] ||= []) << q
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end
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opts[:strict] = false if weight.to_i > 0
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end
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end
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end
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