check_ajp

#!/usr/bin/ruby 
# check_ajp a nagios check plugin for monitoring AJP services
#
# Copyright (C) 2007 Jesse Morgan
#
# check_ajp
# This file is part of check_ajp
#
# check_ajp is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# check_ajp is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.



require 'rubygems'

require 'optparse'
require 'net/ajp13/client'
NAGIOS_OK = 0
NAGIOS_WARN = 1
NAGIOS_CRIT = 2
NAGIOS_UNKN = 3

$options = {}
$options[:port] = 8009
$options[:uri] = "/"
OptionParser.new do |$opts|
    $opts.banner = "Usage: check_ajp -H host [options] \n"

    $opts.on( "-H host","--host host", " host to use (required)") do |host|
        $options[:host] = host
	end
    $opts.on( "-p port","--port port", " port to use (defaults to 8009)") do |port|
        $options[:port] = port.to_i || 8009
    end
    $opts.on_tail("-h", "--help", "Show this message") do
        puts opts
        exit
    end
end.parse!

################################
######### Three States #########
################################



########### Unknown ############
if $options[:host].nil?
	puts $opts
	exit NAGIOS_UNKN
end



########## Critical ############
begin
	res = Net::AJP13::Client.start($options[:host],$options[:port]) { |client|
		client.ping
	}
rescue Exception =>e
	puts "AJP Error - #{e.to_s}"
	exit NAGIOS_CRIT
end

############# OK ###############
puts "AJP OK - no errors reported."
exit NAGIOS_OK