Nagiosで複数URLをまとめてHTTP監視するプラグイン

check_http_multi.rb

#!/usr/local/bin/ruby
# -*- encoding: utf-8 -*-

require 'net/http'
require 'uri'
require 'pp'

configs = [
  { desc: '正常', url: 'http://mikeda.jp/wiki/', regex: /MikedaWiki/, timeout: 1},
  { desc: '中身がおかしい', url: 'http://mikeda.jp/wiki/', regex: /XXXYYYZZZ/, timeout: 1},
  { desc: '重たい', url: 'http://test01.mikeda.jp/5sec.php', regex: /test/, timeout: 1},
  { desc: 'NotFound', url: 'http://test01.mikeda.jp/notfound', regex: /test/, timeout: 1},
  { desc: '接続できない', url: 'http://s01.mikeda.jp/', regex: /test/, timeout: 1},
  { desc: '名前解決できない', url: 'http://XXX.mikeda.jp', regex: /test/, timeout: 1},
]

errors = []
configs.each do |config|
#  puts "check #{config[:desc]}"

  url = URI.parse(config[:url])
  begin
  http = Net::HTTP.new(url.host, url.port)
  http.open_timeout = 1  # とりあえず
  res = http.start {|http|
    http.read_timeout = config[:timeout]
    http.get(url.path)
  }
  rescue Timeout::Error
    errors << "Error #{config[:desc]}: timeout(#{config[:timeout]}sec)"
    next
  rescue => e
    errors << e.to_s
    next
  end

  if res.code != "200"
    errors << "Error #{config[:desc]}: bad response(#{res.code})"
  elsif res.body !~ config[:regex]
    errors << "Error #{config[:desc]}: node include '#{config[:regex].to_s}'"
  end
end

pp errors
exit errors.empty? ? 0 : 2