upsmon_

#!/usr/bin/env python
# -*- python -*-
#
# Wildcard plugin to monitor UPS using nut
#
#%# capabilities=autoconf suggest
#%# family=auto

import os, sys, string, subprocess
plugin_name = list(os.path.split(sys.argv[0]))[1]
plugin_version = "1.0"
target = plugin_name[string.rindex(plugin_name,'_')+1:]

def run_command(args):
   out, err = subprocess \
      .Popen(args, stdout = subprocess.PIPE, stderr = subprocess.PIPE) \
      .communicate()
   return out

def get_ups_vars(ups):
   lines = run_command(['upsc', ups]).splitlines()
   vars = {v[0]:v[1] for v in [l.split(": ") for l in lines]}
   return vars

def list_ups():
   return run_command(['upsc', '-l']).splitlines()

arg = sys.argv[1] if len(sys.argv) == 2 else None
if arg == "config":
   print('host_name '+target)
   print('multigraph ups_battery_level')
#   print('host_name '+target)
   print('graph_category power')
   print('graph_title '+target+' UPS Battery charge level')
   print('graph_vlabel %')
   print('graph_args --lower-limit 0 --upper-limit 100 --rigid')
   print('battery_charge.label Battery level')
   print('multigraph ups_battery_runtime')
#   print('host_name '+target)
   print('graph_category power')
   print('graph_title '+target+' UPS Battery remaining runtime')
   print('graph_vlabel minutes')
   print('graph_args --lower-limit 0')
   print('battery_runtime.label Battery runtime')
   print('multigraph ups_output_load')
#   print('host_name '+target)
   print('graph_category power')
   print('graph_title '+target+' UPS Load')
   print('graph_vlabel %')
   print('graph_args --lower-limit 0 --upper-limit 100 --rigid')
   print('output_load.label Load')
elif arg == "autoconf":
   ups = list_ups()
   if len(ups) == 0:
      print("no (no ups listed via upsc -l)")
   else:
      print("yes")
elif arg == "suggest":
   for u in list_ups():
      print (u)
elif arg == "version":
   print('upsmon_ Munin plugin, version '+plugin_version)
else:
   vars = get_ups_vars(target)
   print('multigraph ups_battery_level')
   print('battery_charge.value ' + vars['battery.charge'])
   print('multigraph ups_battery_runtime')
   print('battery_runtime.value ' + str(int(vars['battery.runtime'])/60.0))
   print('multigraph ups_output_load')
   print('output_load.value ' + vars['ups.load'])