Munin contributed plugins

#!/usr/bin/python

# Copyright (C) 2009 Andreas Thienemann <andreas@bawue.net>

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU Library General Public License as published by

# the Free Software Foundation; version 2 only

#

# This program 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 Library General Public License for more details.

#

# You should have received a copy of the GNU Library General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

#

#

# Munin Plugin to get storage device throughput for Bacula by parsing the bconsole

# output.

#

# Parameters:

#

# 	config   (required)

# 	autoconf (optional - only used by munin-config)

#

# Magic markers (optional - only used by munin-config and some

# installation scripts):

#

#%# family=contrib

#%# capabilities=autoconf

import subprocess

import time

import sys

import re

import os

def parse_devices():

	""" Parse the bconsole output once to get the device names """

	bconsole = subprocess.Popen("bconsole", stdin=subprocess.PIPE, stdout=subprocess.PIPE)

	stdout, stderr = bconsole.communicate("status\n2")

	devs = []

	# Hold the line numbers for devices

	dev_line = []

	input = stdout.split("\n")

	for line, i in zip(input, range(0, len(input))):

		if line.startswith("Connecting to Storage daemon "):

			hostname = line.split()[-1].split(":")[0]

		if line.startswith("Device \""):

			dev_line.append(i)

	for pos in dev_line:

		# Get the device name

		dev_name = input[pos].split()[1][1:-1]

		dev_dev = input[pos].split()[2][1:-1]

		dev_dev_clean = re.sub("^[^A-Za-z_]", "_", dev_dev, 1)

		dev_dev_clean = re.sub("[^A-Za-z0-9_]", "_", dev_dev_clean, 0)

		devs.append([dev_name, dev_dev, dev_dev_clean])

	return hostname, devs

def parse():

	""" Parse the bconsole output """

	bconsole = subprocess.Popen("bconsole", stdin=subprocess.PIPE, stdout=subprocess.PIPE)

	stdout, stderr = bconsole.communicate("status\n2")

	devstats = []

	# Hold the line numbers for devices

	dev_line = []

	input = stdout.split("\n")

	for line, i in zip(input, range(0, len(input))):

		if line.startswith("Device \""):

			dev_line.append(i)

	for pos in dev_line:

		# Get the device name

		dev_dev = input[pos].split()[2][1:-1]

		dev_dev_clean = re.sub("^[^A-Za-z_]", "_", dev_dev, 1)

		dev_dev_clean = re.sub("[^A-Za-z0-9_]", "_", dev_dev_clean, 0)

		# Get the current bytes

		if input[pos].endswith("is mounted with:"):

			bytes = long(input[pos+5].split()[1].split("=")[1].replace(",", ""))

			devstats.append([dev_dev, dev_dev_clean, bytes])

		else:

			devstats.append([dev_dev, dev_dev_clean, 0])

	return devstats

def print_config():

	hostname, devstats = parse_devices()

	print "graph_title Bacula Storage Daemon throughput"

	print "graph_vlabel bytes per ${graph_period}"

	print "graph_args --base 1024 -l 0"

	print "graph_scale yes"

	print "graph_info Bacula Storage Daemon througput measurement based on written bytes. This may be somewhat inacurate whenever a tape is changed."

	print "graph_category Bacula"

	print "graph_order", 

	for dev in devstats:

		print dev[2],

	print

	if os.getenv("report_hostname") is not None and \

		os.getenv("report_hostname").upper() in ["YES", "TRUE", "1", "Y"]:

		print "host_name", hostname

	for dev in devstats:

		print "%s.label %s" % (dev[2], dev[1])

		print "%s.type DERIVE" % (dev[2])

		print "%s.min 0" % (dev[2])

#		print "%s.max %s" % (dev[2], str(1024*1024*1024*16))

#		print "%s.cdef up,8,*" (dev[2])

	sys.exit(0)

if "config" in sys.argv[1:]:

	print_config()

elif "autoconf" in sys.argv[1:]:

	for dir in os.getenv("PATH").split(":"): 

		for root, dirs, files in os.walk(dir):

			if "bconsole" in files:

				print "yes"

				sys.exit(0)

	print "no"

	sys.exit(1)

elif "suggest" in sys.argv[1:]:

	sys.exit(1)

else:

	for dev in parse():

		print "%s.value %s" % (dev[1], dev[2])