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nagios-plugins/check_bond.py/trunk/check_bond

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#!/usr/bin/python
# Copyright 2010, Tomas Edwardsson
#
# check_bond.py 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 3 of the License, or
# (at your option) any later version.
#
# check_bond.py 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/>.
import pprint
import re
import sys
import getopt
def readbond( interface ):
intfile = "/proc/net/bonding/%s" % interface
# Read interface info
try:
bondfh = open (intfile, 'r')
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except IOError, (errno, strerror):
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print "Unable to open bond %s: %s" % (intfile, strerror)
sys.exit(3)
except:
print "Unexpected error:", sys.exc_info()[0]
sys.exit(3)
# Initialize bond data
bond = {}
bond['slaves'] = []
# Which interface are we working with
current_int = ''
# Loop throught the file contents
for line in bondfh.readlines():
# Remove newlines and split on colon, ignore other
try:
k, v = line.replace('\n', '').split(': ', 1)
except:
pass
# Remove leading whitespaces
k = re.sub('^\s*', '', k)
# Bonding mode for the channel
if k == "Bonding Mode":
bond['bonding_mode'] = v
# Record current slave interface
elif k == "Slave Interface":
current_int = v
# Slave interface mii status
elif current_int and k == "MII Status":
bond['slaves'].append( { 'int' : current_int, 'mii_status' : v })
# Bond mii status
elif k == "MII Status":
bond['mii_status'] = v
return bond
def usage():
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print "Usage: %s -i bond0" % sys.argv[0]
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sys.exit(3)
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def main(argv):
# Set variables
interface = ''
outstring = ''
retval = 0
# Nagios return code states
states = { 0 : 'OK', 1 : 'Warning', 2 : 'Critical', 3 : 'Unknown' }
# Try to read the arguments
try:
opts, args = getopt.getopt(argv, "hi:", ["help", "interface="])
except getopt.GetoptError:
usage()
sys.exit(3)
for opt, arg in opts:
if opt in ("-h", "--help"):
usage()
sys.exit(3)
elif opt in ("-i", "--interface"):
interface = arg
if (interface == ""):
usage()
sys.exit(3)
bond = readbond(interface)
# The whole bond is down
if bond['mii_status'] != 'up':
print "Critical: bonding device %s %s" % (interface, bond['mii_status'])
sys.exit(2)
# Some interface in the bond is down
for slave in bond['slaves']:
if slave['mii_status'] != 'up':
outstring = "%s%s down " % (outstring, slave['int'])
if retval < 1:
retval = 1
if retval:
print "%s: %s%s %s" % (states[retval], outstring, "in bonding device", interface)
sys.exit(retval)
print "OK: bonding device %s up and running" % interface
sys.exit(0)
if __name__ == "__main__":
main(sys.argv[1:])