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#!/usr/bin/ruby1.8
#
# NAME
# custodian-enqueue - Insert sentinel-probes into a queue.
#
# SYNOPSIS
# custodian-enqueue [ -h | --help ]
# [ -m | --manual]
# [ -f | --file FILE]
# [ -d | --dump ]
# [ | --test ]
# [ -t | --timeout N ]
#
# OPTIONS
#
# -h, --help Show a help message, and exit.
#
# -m, --manual Show this manual, and exit.
#
# -d, --dump Dump the generated JSON to the console; don't insert in the queue.
#
# --test Test the parsing of the given file, alert on errors.
#
# -f, --file FILE Parse the given configuration file.
#
# -t, --timeout N Specify the timeout period for the tests.
#
#
# ABOUT
#
# This tool reads a single configuration file and parses it into a
# series of network & protocol tests. These tests are serialized
# into JSON, and stored in a beanstalkd queue.
#
# The intention is that the tests will be pulled from the queue and
# executed by the companion program custodian-dequeue. The dequeing
# process may occur up numerous other hosts
#
# CONFIGURATION FILE
#
# The configuration file is 99% compatible with that used in the tool
# custodian replaces.
#
#
# AUTHOR
#
# Steve Kemp <steve@bytemark.co.uk>
#
#
# Implementation of our parser.
#
require 'custodian/parser'
#
# Entry-point to our code.
#
if __FILE__ == $0 then
$help = false
$manual = false
begin
opts = GetoptLong.new(
[ "--dump", "-d", GetoptLong::NO_ARGUMENT ],
[ "--test", GetoptLong::NO_ARGUMENT ],
[ "--file", "-f", GetoptLong::REQUIRED_ARGUMENT ],
[ "--help", "-h", GetoptLong::NO_ARGUMENT ],
[ "--manual","-m", GetoptLong::NO_ARGUMENT ],
[ "--timeout","-t", GetoptLong::REQUIRED_ARGUMENT ]
)
opts.each do |opt, arg|
case opt
when "--dump":
ENV["DUMP"] = "1"
when "--test":
ENV["TEST"] = "1"
when "--file":
ENV["FILE"] = arg
when "--timeout":
ENV["TIMEOUT"] = arg
when "--help":
$help = true
when "--manual":
$manual = true
end
end
rescue StandardError => ex
puts "Option parsing failed: #{ex.to_s}"
exit
end
#
# CAUTION! Here be quality kode.
#
if $manual or $help
# Open the file, stripping the shebang line
lines = File.open(__FILE__){|fh| fh.readlines}[1..-1]
found_synopsis = false
lines.each do |line|
line.chomp!
break if line.empty?
if $help and !found_synopsis
found_synopsis = (line =~ /^#\s+SYNOPSIS\s*$/)
next
end
puts line[2..-1].to_s
break if $help and found_synopsis and line =~ /^#\s*$/
end
exit 0
end
#
# Create the parser
#
mon = MonitorConfig.new( ENV['FILE'] )
#
# Set the timeout
#
if ( !ENV['TIMEOUT'].nil? )
mon.set_timeout( ENV['TIMEOUT'] )
end
#
# Run
#
mon.parse_file()
#
# If there were errors then we'll not get this far.
#
if ( File.exists?( "/etc/mauvealert/mauvesend.destination" ) )
#
# Inititate a heartbeat
#
system( "mauvesend alert.bytemark.co.uk -i custodian-enqueue -c now -r +10m -s \"heartbeat failed for custodian-queue.\" --detail=\"<p>The heartbeat wasn't sent for <tt>custodian-queue</tt> - This means that new tests are not being pushed into the <tt>beanstalkd</tt> queue, and our monitoring is potentially broken</p>\" " )
end
end
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