Archive for » March, 2010 «

Tuesday, March 02nd, 2010 | Author:

kermitI’ve been lazy at maintaining my servers recently and decided to start playing with puppet reports. First I started with something simple that helps me to find on which machines my manifests have some failure.

So here’s a quick and dirty code that goes through Puppet’s reportdir and points out neglected machines.

#!/usr/bin/env ruby
 
require 'puppet'
require 'find'
require 'yaml'
require 'optparse'
 
Puppet[:config] = "/etc/puppet/puppet.conf"
Puppet.parse_config
 
def most_recent_file(path)
	reports = []
	Find.find(path) { |file|
		if File.file? file
			reports << File.basename(file,".yaml")
		end
	}
	reports.sort!.reverse!
	return path+"/"+reports[0].to_s+".yaml"
end
 
 
def scan_dir(path, debug=false)
	Find.find(path) { |entry|
		if entry != path # don't scan the basedir
			if File.directory? entry
				report = most_recent_file(entry)
				scan_file(report, debug)
			end
		end
	}
end
 
 
def scan_file(filename, debug=false)
	notify_on_field = [:failed]
 
	# debug
	if debug then  puts "scanning " + filename end
 
	fp=open(filename,"r")
	YAML::load_documents(fp) { |report|
		report.metrics["resources"].values.each { |value|
			if (notify_on_field.include? value[0]) and (value[2] > 0) then
				puts "#{report.host} has #{value[2]} #{value[0]} resource(s)"
				if debug then
					puts "log message(s) :"
					report.logs.each { |log|
						puts log.message
					}
				end
			end
		}
	}	
end
 
options = {}
myargs = Array
 
optparse = OptionParser.new { |opts|
	opts.banner = "Usage : report_check.rb"
 
	options[:show]=false
	opts.on("-d", "--debug", "runs in debug mode") do |debug|
		options[:debug]=true
	end
 
	opts.on("-h", "--help", "Displays this help") do
		puts opts
		exit
	end
 
}
 
optparse.parse!
 
scan_dir(Puppet[:reportdir], options[:debug])