Initial commit

LICENSE

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+Copyright (C) 2014 Jack-Benny Persson <jack-benny@cyberinfo.se>
+
+This program 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.
+
+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 General Public License for more details.
+
+You should have received a copy of the GNU 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

README.md

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+# check\_temp.py #
+Another simple Nagios plugin to check the temperature with lm-sensors.
+This one is written in Python and can be used to monitor any adapter the user
+specifies with the -a option.
+
+## Usage ##
+    usage: check_temp.py [-h] -w N -c N -a string
+
+    optional arguments:
+        -h, --help  show this help message and exit
+        -w N        warning temperature
+        -c N        critical temperature
+        -a string   the adapter to monitor (for example: acpitz-virtual-0)
+
+## License ##
+check\_temp.py is relased under GNU GPL.

check_temp.py

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+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+import subprocess
+import sys
+import argparse
+
+def check_temp(warn, crit, adapter):
+    """ 
+    This is a simple Nagios plugin to
+    check the temperature with lm-sensors and then
+    returning the correct return code to main.
+    """ 
+
+    # Use lm-sensors to check the temperature
+    try:
+        sensors_output = subprocess.check_output(['sensors'])
+    except OSError:
+        print "Couldn't execute sensors (from lm-sensors)"
+        sys.exit(3)
+
+    # Grab the temperature for the specified adapter by splitting the string
+    # into a list and then getting the index number for the adapter name and
+    # adding 5 to the index number.
+    # Lastly, we strip away the + sign and the degree symbols and typecast it
+    # to a float
+    sensors_output = sensors_output.split()
+    t = sensors_output.index(adapter) + 5
+    temp = sensors_output[t]
+    temp = temp[1:-3]
+    temp = float(temp)
+    
+    if warn > crit:
+        print "Warning temp must be less than critical temp"
+        sys.exit(3)
+
+    # Do the actual temperature check/comparison.
+    # For each case we return both the code and the current temperature
+    if temp < warn:
+        return 0, temp
+
+    elif temp > warn and temp < crit:
+        return 1, temp
+
+    elif temp >= crit:
+        return 2, temp
+
+    else:
+        return 3, temp
+        
+
+def main():
+    
+    # Parse command line options with argparse
+    cli_parser = argparse.ArgumentParser() 
+    cli_parser.add_argument('-w', metavar='N', type=float, required=True,
+        help='warning temperature')
+    cli_parser.add_argument('-c', metavar='N', type=float, required=True,
+        help='critical temperature')
+    cli_parser.add_argument('-a', metavar='string', type=str, required=True,
+        help='the adapter to monitor (for example: acpitz-virtual-0)')
+    args = cli_parser.parse_args()
+
+    # Get the return-code and temperature from check_temp function
+    return_code, temp = (check_temp(args.w, args.c, args.a)) 
+    
+    # Print temperature and message and then exit with the correct return code
+    if return_code == 0:
+        print ("OK - Temperature is " + str(temp))
+        sys.exit(0)
+    elif return_code == 1:
+        print ("WARNING - Temperature is " + str(temp))
+        sys.exit(1)
+    elif return_code == 2:
+        print ("CRITICAL - Temperature is " + str(temp))
+        sys.exit(2)
+    else:
+        print ("UNKNOWN - Something went wrong with " + sys.argv[0] + "!")
+        sys.exit(3)
+        
+if __name__=='__main__':
+    main()