File check_nagiostats of Package monitoring-plugins-nagiostats
#!/bin/sh
# Version 1.2 as of 20-Jun-2012
# CONFIGURATION SECTION ################################################
# Note that since v1.2, these configs can be overridden by options
# nagiostats/icingastats/... executable
EXEC="/usr/local/nagios/bin/nagiostats"
# Cumulation function (MIN, MAX, AVG) and timeframe (1, 5, or 15
# minutes) of choice for the "gimme all there is" mode
CUMULATE="AVG"
TIMERANGE="5"
# Attempt to add the $TIMERANGEs used to the perfdata?
RANGETRACK=true
# Hostname and service description to use when passive check mode is
# requested and host and/or service cannot be determined
PASSIVE_EMERGENCY_HOST="Nagios"
PASSIVE_EMERGENCY_SERV="Nagios Stats"
########################################################################
PASSIVE=false
CONFIG=""
make_an_exit() {
if $PASSIVE ; then
date '+[%s] PROCESS_SERVICE_CHECK_RESULT;'"$PSV_HST;$PSV_SVC;$1;$2"
exit 0
else
echo "$2"
exit $1
fi
}
while true ; do
case $1 in
# Controlling active/passive mode
-p|--passive)
PASSIVE=true
PSV_HST="$2"
PSV_SVC="$3"
if [ "$PSV_HST" = "" -o "$PSV_SVC" = "" ]; then
PSV_HST="$PASSIVE_EMERGENCY_HOST"
PSV_SVC="$PASSIVE_EMERGENCY_SERV"
make_an_exit 3 "UNKNOWN: `basename $0`: '--passive' needs to be followed by host ($2) and service ($3)"
fi
shift 2 ;;
-a|--active)
PASSIVE=false ;;
# Options passed to $EXEC
-c|--config|-s|--statsfile)
CONFIG="$CONFIG $1 $2"
shift ;;
-c*|--config=*|-s*|--statsfile=*)
CONFIG="$CONFIG $1" ;;
# Modifying our own default configs
-E|--exec|--EXEC)
EXEC="$2"
shift ;;
-C|--cumulate|--CUMULATE)
CUMULATE="$2"
shift ;;
-T|--timerange|--TIMERANGE)
TIMERANGE="$2"
shift ;;
-R|--rangetrack|--RANGETRACK)
RANGETRACK=true ;;
-N|--norangetrack|--NORANGETRACK)
RANGETRACK=false ;;
# Online help
-h|--help)
BASESELF=`basename $0`
BASEEXEC=`basename $EXEC`
MODE="--active"
if $PASSIVE ; then
MODE="--passive '$PSV_HST' '$PSV_SVC'"
fi
TRACK="--NORANGETRACK"
if $RANGETRACK ; then
TRACK="--RANGETRACK"
fi
cat << EOHelp
Usage: $BASESELF [ options ... ] [ checks ... ]
Executes $BASEEXEC (or an equivalent command) to re-
trieve internal statistics from your monitoring solu-
tion, and optionally checks values against limits you
specify.
If no checks are requested, only values disagreeing
from the preselected timerange and cumulation function
are omitted from the output.
Options: --passive "Hostname" "Service Description"
Output passive check result in external command syntax.
(Remember to redirect the output to the command pipe.)
--active
Switches back to active check mode.
--config Configfile
--statsfile Statusfile
Passed through as-is to $BASEEXEC (for OMD's benefit).
--EXEC StatisticsGatherer - i.e., /path/to/$BASEEXEC
--CUMULATE CumulationFunction - i.e., MIN, MAX, or AVG
--TIMERANGE TimeRange - i.e., 1, 5, or 15 (minutes)
--RANGETRACK
--NORANGETRACK
Change $BASESELF configuration values on the fly.
--help
Output this help (and exit).
Note: The options and values set or implied at this point are:
$MODE$CONFIG
--EXEC $EXEC
--CUMULATE $CUMULATE --TIMERANGE $TIMERANGE $TRACK
Checks: Every check is specified as:
variable comparison value(pair)
where:
"variable" is any "MRTG variable" supported by your
$BASEEXEC
"comparison" is any numeric comparison operator that
your local "test" executable offers
"value(pair)" is either one integer (CRITICAL limit)
or two integers with a '/' separator (i.e.,
WARNING/CRITICAL)
the result being TRUE means that the alert should be
raised
"variable -lt 0" can (should) be used to include the
variable into the output without checking any
limits on it
Example:
$BASESELF --active STATUSFILEAGETT -gt 900/1800 PROGRUNTIMETT -lt 0
OK: STATUSFILEAGETT=3 PROGRUNTIMETT=160707 | STATUSFILEAGETT=3;900;1800 PROGRUNTIMETT=160707
checks the age of your status.dat, returns WARNING/CRITICAL
if the file hasn't been updated for more than 15/30 minutes,
and also tells you how long the program has been running since
the last restart/reload (without applying limits to that).
EOHelp
exit 0 ;;
# Unknown option
-*)
make_an_exit 3 "UNKNOWN: Unknown option '$1'" ;;
# Not an option at all (parameters start)
*)
break ;;
esac
shift
done
if [ ! -x "$EXEC" ]; then
make_an_exit 3 "UNKNOWN: Cannot find executable $EXEC"
fi
if [ $# -gt 0 ]; then
EXITVAL=0
EXITSTR="OK"
OUTPUT=""
while [ $# -gt 0 ]; do
if [ "$1" = "" ]; then
make_an_exit 3 "UNKNOWN: Need a value name"
fi
VALUE=`$EXEC $CONFIG -m -d "$1"`
if [ "$VALUE" = "" -o "$VALUE" = "$1" ]; then
make_an_exit 3 "UNKNOWN: Value $1 does not seem to exist"
fi
INTVAL="`echo $VALUE | sed -e 's/^\./0\./' -e 's/\..*//'`"
if [ "`echo $INTVAL | sed -e 's/[0-9]*//'`" != "" ]; then
make_an_exit 3 "UNKNOWN: Value $1 seems to be non-numeric ($VALUE)"
fi
if [ "`echo $3 | sed -e 's|.*/.*|/|'`" = "/" ]; then
WARN="`echo $3 | sed -e 's|/.*||'`"
CRIT="`echo $3 | sed -e 's|.*/||'`"
else
WARN=""
CRIT="$3"
fi
if [ "$WARN" != "" -a "`echo $WARN | sed -e 's/[0-9]*//'`" != "" ]; then
make_an_exit 3 "UNKNOWN: Not an integer: $WARN"
fi
if [ "$CRIT" = "" -o "`echo $CRIT | sed -e 's/[0-9]*//'`" != "" ]; then
make_an_exit 3 "UNKNOWN: Not an integer: $CRIT"
fi
LIMITS=""
for LIMIT in "$WARN" "$CRIT" ; do
if [ "$LIMIT" = "" -o \( "$2" = "-lt" -a "$LIMIT" = "0" \) ]; then
if [ "$CRIT" != "0" ]; then
LIMITS="$LIMITS;"
fi
else
case $2 in
-eq) LIMITS="$LIMITS;@${LIMIT}:$LIMIT" ;;
-ne) LIMITS="$LIMITS;${LIMIT}:$LIMIT" ;;
-ge) LIMITS="$LIMITS;`echo $LIMIT 1 - p | dc`" ;;
-gt) LIMITS="$LIMITS;$LIMIT" ;;
-le) LIMITS="$LIMITS;`echo $LIMIT 1 + p | dc`:" ;;
-lt) LIMITS="$LIMITS;${LIMIT}:" ;;
*) make_an_exit 3 "UNKNOWN: Not a comparison operator: $2" ;;
esac
fi
done
if [ $INTVAL $2 $CRIT ]; then
EXITVAL=2
EXITSTR="CRITICAL"
OUTPUT="$OUTPUT "'**'"$1=$VALUE"'**'
elif [ "$WARN" != "" ]; then
if [ $INTVAL $2 $WARN ]; then
if [ $EXITVAL -eq 0 ]; then
EXITVAL=1
EXITSTR="WARNING"
fi
OUTPUT="$OUTPUT "'*'"$1=$VALUE"'*'
else
OUTPUT="$OUTPUT $1=$VALUE"
fi
else
OUTPUT="$OUTPUT $1=$VALUE"
fi
PERFDATA="$PERFDATA $1=$VALUE$LIMITS"
if $RANGETRACK ; then
if [ "`echo $1 | sed -e 's/[^0-9]//g'`" != "" ]; then
PERFDATA="$PERFDATA r_$1=`echo $1 | sed -e 's/[^0-9][^0-9]*$//' -e 's/^.*[^0-9]//'`"
fi
fi
shift 3
done
make_an_exit $EXITVAL "${EXITSTR}:$OUTPUT |$PERFDATA"
else
PREFIX=""
if $PASSIVE ; then
PREFIX=`date '+[%s] PROCESS_SERVICE_CHECK_RESULT;'"$PSV_HST;$PSV_SVC;0;"`
fi
POSTFIX=""
if $RANGETRACK ; then
POSTFIX=" TimeRange=$TIMERANGE"
fi
$EXEC $CONFIG -m -d `$EXEC $CONFIG -h | egrep '^ *([A-Z][A-Z]|xx)' | \
awk 'BEGIN { s=""; } { printf "%s%s=,%s",s,$1,$1; s=","; }' | \
sed -e 's/xxxx*/'"$CUMULATE/g" -e 's/xx*/'"$TIMERANGE/g"` | \
sed -e '/=$/N' -e 's/=[^0-9]*/=/' | egrep '=([0-9][0-9]*|[0-9]*\.[0-9][0-9]*)$' | \
tr '\n' ' ' | sed -e 's/^/'"$PREFIX"'OK: Statistics read | /' -e 's/$/'"$POSTFIX/" | \
grep 'OK: Statistics read'
if [ $? -eq 0 ]; then
exit 0
else
make_an_exit 2 "CRITICAL: Cannot read statistics with `basename $EXEC`"
fi
fi
