munin plugin for show resque workers

resque_workers.rb

#!/usr/bin/env ruby
# Description: Show number of workers by server based on "https://gist.github.com/1334470"
# Source: https://gist.github.com/2598254
#
require 'rubygems'
require 'resque'

HOST = ENV['host'] ? ENV['host'] : '127.0.0.1'
PORT = ENV['port'] ? ENV['port'] : '6379'

Resque.redis = "#{HOST}:#{PORT}"

servers = {}

Resque.workers.map { |w| w.to_s.split(':').first }.uniq.each { |s| servers[s] = 0 }

if ARGV.any? && ARGV[0] == 'config'
  puts 'graph_title Workers by Servers'
  puts 'graph_vlabel Workers'
  puts 'graph_category resque'

  servers.keys.each do |server|
    puts "#{server.gsub(/\W/,'_')}.label #{server}"
  end
  exit 0
end

Resque.workers.map{ |w| w.to_s.split(':').first }.each do |s|
  servers[s] += 1
end

servers.each_pair{ |server, workers|
  puts "#{server.gsub(/\W/,'_')}.value #{workers}"
}

exit 0