nagios plugin to check battery state of devices that support the battery reading

git-svn-id: https://svn.fhem.de/fhem/trunk@1626 2b470e98-0d58-463d-a4d8-8e2adae1ed80

fhem/contrib/nagios/check_fhem_sensor_battery.sh

@@ -0,0 +1,82 @@
+#!/bin/bash
+# -*- bash -*-
+# vim: ft=bash
+#
+# check_fhem_sensor_battery.sh - check the battery state of FHT/HMS devices
+# (other devices may also work (untested)). The device must have "battery" readings.
+#
+# FHEM must be installed and configured and reacheable via telnet (network or localhost).
+# Copy this file to your nagios-plugins directory (utils.sh has to be in the same path).
+#
+# 2012 Oliver Voelker <code@magenbrot.net>
+#
+# LICENSE
+#
+# 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 3 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, see <http://www.gnu.org/licenses/>.
+#
+
+PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin
+
+PROGNAME=`basename $0`
+PROGPATH=`echo $0 | sed -e 's,[\\/][^\\/][^\\/]*$,,'`
+REVISION="1.0"
+DEVICE=$1
+
+if [ "$2" ]; then HOST=$2; else HOST="localhost"; fi
+if [ "$3" ]; then PORT=$3; else PORT=7072; fi
+
+. $PROGPATH/utils.sh
+
+
+print_usage() {
+	echo "Usage: $PROGNAME <fhem-device> <optional:host port>"
+}
+
+print_help() {
+	print_revision $PROGNAME $REVISION
+	echo ""
+	print_usage
+	echo ""
+	echo "This plugin checks the battery state of various fhem sensors."
+	exit 0
+}
+
+case "$1" in
+	--help|-h)
+		print_help
+		exit 0
+		;;
+	--version|-V)
+   	print_revision $PROGNAME $REVISION
+		exit 0
+		;;
+	*)
+		bat=`echo -e "{ ReadingsVal('${DEVICE}', 'battery', 'notok')}\nquit\n" | nc ${HOST} ${PORT}`
+		status=$?
+		if test ${status} -eq 127; then
+			echo "SENSORS UNKNOWN - command not found (did you install lmsensors?)"
+			exit -1
+		elif test ${status} -ne 0 ; then
+			echo "WARNING - sensors returned state $status"
+			exit 1
+		fi
+		if echo ${bat} | egrep "^ok$"  > /dev/null; then
+			echo "BATTERY OK"
+			exit 0
+		else
+			echo "BATTERY CRITICAL"
+			exit 2
+		fi
+		;;
+esac