#!/bin/bash
#
# Apache access log line count & response times
# Written by Senthil Nathan
# Last Modified: June 1st 2017
#
# Usage: ./http_stat -f access_log_file -g search_pattern -w Count Warn -c Count Critical (there are more options!!!)
#
# Description: Count the number of lines in apache access log for the previous minute
#
# This plugin is to check the lines generated by the log in the previosu minute
# Assumes apache log time stamp of format "%d/%b/%Y:%H:%M"
# E.g. 08/Dec/2015:10:55:15
#
# Output:
#
# Count is OK/Warning/Critical|'$themetric'=xxxxxx;nnnnnn;mmmmmm;0
#
# Examples:
#
# Warn if total access count / minute > 10000
# Critical if total access count > 20000
# Below eg may not work
# http_stat -f /opt/apache2/HTTPServer/logs/app_access_log -w 10000 -c 20000
#
# This will work!
# http_stat -f /opt/apache2/HTTPServer/logs/app_access_log -g pos -G pdf -wa 12000 -ca 14000 -wr 250000 -cr 400000 -wh2 12000 -ch2 14000 -wh3 700 -ch3 1000 -wh4 50 -ch4 75 -wh5 10 -ch5 15
#
#
PROGNAME=`/bin/basename $0`
PROGPATH=`echo $0 | sed -e 's,[\\/][^\\/][^\\/]*$,,'`
REVISION="1.0"
#
. $PROGPATH/utils.sh
#
finalstat=$STATE_UNKNOWN
check_root()
{
# make sure script is running as root
if [ `whoami` != root ]; then
echo "UNKNOWN: please make sure script is running as root"
exit $STATE_UNKNOWN
fi
}
print_usage() {
echo "Usage: $PROGNAME -f <access log file path>
-wa <warning access count> -ca <critical access count> -ma <min access count>
-wr <warning response time> -cr <critical response time>
-wh2 <warning access count> -ch2 <critical access count>
-wh3 <warning access count> -ch3 <critical access count>
-wh4 <warning access count> -ch4 <critical access count>
-wh5 <warning access count> -ch5 <critical access count>"
echo "Usage: $PROGNAME --help"
echo "Usage: $PROGNAME --version"
}
print_revision() {
echo "Program: $PROGNAME"
echo "Version: $REVISION"
}
print_help() {
print_revision
echo ""
print_usage
echo ""
echo "Check total access log count 2 minutes for Nagios"
echo ""
}
# Check user is root (not required)
#check_root
# Make sure the correct number of command line
# arguments have been supplied
if [ $# -lt 1 ]; then
print_usage
exit $STATE_UNKNOWN
fi
# Grab the command line arguments
thegrep=""
declare -i theminia=10
exitstatus=$STATE_WARNING #default
while test -n "$1"; do
case "$1" in
--help)
print_help
exit $STATE_OK
;;
-h)
print_help
exit $STATE_OK
;;
--version)
print_revision
exit $STATE_OK
;;
-V)
print_revision
exit $STATE_OK
;;
-ca) # Critical Access Counts
thecrita=$2
shift
;;
-wa)
thewarna=$2
shift
;;
-ma)
theminia=$2
shift
;;
-cr) # Critical Response Time
thecritr=$2
shift
;;
-wr)
thewarnr=$2
shift
;;
-ch2) # Critical HTTP Status Code 2xx
thecrit2=$2
shift
;;
-wh2)
thewarn2=$2
shift
;;
-ch3) # Critical HTTP Status Code 3xx
thecrit3=$2
shift
;;
-wh3)
thewarn3=$2
shift
;;
-ch4) # Critical HTTP Status Code 4xx
thecrit4=$2
shift
;;
-wh4)
thewarn4=$2
shift
;;
-ch5) # Critical HTTP Status Code 5xx
thecrit5=$2
shift
;;
-wh5)
thewarn5=$2
shift
;;
-f)
thefile=$2
shift
;;
--filename)
thefile=$2
shift
;;
-G)
thegrep="$thegrep | grep -v $2 "
shift
;;
--Grep)
thegrep="$thegrep | grep -v $2 "
shift
;;
-g)
thegrep="$thegrep | grep $2 "
shift
;;
--grep)
thegrep="$thegrep | grep $2 "
shift
;;
*)
echo "Unknown argument: $1"
print_usage
exit $STATE_UNKNOWN
;;
esac
shift
done
# Validate arguments
if [ -z $thecritr ] || [ -z $thewarnr ] || [ -z $thecrita ] || [ -z $thewarna ] || \
[ -z $thecrit2 ] || [ -z $thewarn2 ] || [ -z $thecrit3 ] || [ -z $thewarn3 ] || \
[ -z $thecrit4 ] || [ -z $thewarn4 ] || [ -z $thecrit5 ] || [ -z $thewarn5 ] ; then
print_usage
exit $STATE_UNKNOWN
fi
if [ -z $thefile ]; then
print_usage
exit $STATE_UNKNOWN
fi
# Check begins here
#
PMIN=`date --date '-2 min' +"%d/%b/%Y:%H:%M"`
declare -i accesscount=0
declare -i responsetime
declare -i http2cnt=0 http3cnt=0 http4cnt=0 http5cnt=0
#
#THE_CMD="grep $PMIN $thefile $thegrep | wc -l"
#accesscount=`eval $THE_CMD`
THE_CMD="grep $PMIN $thefile $thegrep|awk '{ sum += \$11; n++ } END { if (n > 0) printf(\"%d\", sum / n); }'"
responsetime=`eval $THE_CMD`
THE_CMD="grep $PMIN $thefile $thegrep|awk '{print int(\$9/100)}'|sort|uniq -c"
IFS=$'\n'
for output in `eval $THE_CMD`; do
http_count=`echo $output|awk '{print $1}'`
accesscount=$((accesscount + http_count))
http_stats=`echo $output|awk '{print $2}'`
if [ $http_stats -eq 2 ]; then
http2cnt=$http_count
elif [ $http_stats -eq 3 ]; then
http3cnt=$http_count
elif [ $http_stats -eq 4 ]; then
http4cnt=$http_count
elif [ $http_stats -eq 5 ]; then
http5cnt=$http_count
fi
done
infostr=""
if [ $accesscount -lt $thewarna ]; then
infostr="$infostr Access Count is OK."
outa=$STATE_OK
else
if [ $accesscount -ge $thecrita ]; then
infostr="$infostr Access Count is Critical."
outa=$STATE_CRITICAL
elif [ $accesscount -ge $thewarna ]; then
infostr="$infostr Access Count is Warning."
outa=$STATE_WARNING
fi
fi
#
if [ $responsetime -lt $thewarnr ]; then
infostr="$infostr Response Time is OK."
outr=$STATE_OK
else
if [ $responsetime -ge $thecritr ]; then
infostr="$infostr Response Time is Critical."
outr=$STATE_CRITICAL
elif [ $responsetime -ge $thewarnr ]; then
infostr="$infostr Response Time is Warning."
outr=$STATE_WARNING
fi
fi
#
if [ $http2cnt -lt $thewarn2 ]; then
infostr="$infostr HTTP 2xx Count is OK."
out2=$STATE_OK
else
if [ $http2cnt -ge $thecrit2 ]; then
infostr="$infostr HTTP 2xx Count is Critical."
out2=$STATE_CRITICAL
elif [ $http2cnt -ge $thewarn2 ]; then
infostr="$infostr HTTP 2xx Count is Warning."
out2=$STATE_WARNING
fi
fi
#
if [ $http3cnt -lt $thewarn3 ]; then
infostr="$infostr HTTP 3xx Count is OK."
out3=$STATE_OK
else
if [ $http3cnt -ge $thecrit3 ]; then
infostr="$infostr HTTP 3xx Count is Critical."
out3=$STATE_CRITICAL
elif [ $http3cnt -ge $thewarn3 ]; then
infostr="$infostr HTTP 3xx Count is Warning."
out3=$STATE_WARNING
fi
fi
#
if [ $http4cnt -lt $thewarn4 ]; then
infostr="$infostr HTTP 4xx Count is OK."
out4=$STATE_OK
else
if [ $http4cnt -ge $thecrit4 ]; then
infostr="$infostr HTTP 4xx Count is Critical."
out4=$STATE_CRITICAL
elif [ $http4cnt -ge $thewarn4 ]; then
infostr="$infostr HTTP 4xx Count is Warning."
out4=$STATE_WARNING
fi
fi
#
if [ $http5cnt -lt $thewarn5 ]; then
infostr="$infostr HTTP 5xx Count is OK."
out5=$STATE_OK
else
if [ $http5cnt -ge $thecrit5 ]; then
infostr="$infostr HTTP 5xx Count is Critical."
out5=$STATE_CRITICAL
elif [ $http5cnt -ge $thewarn5 ]; then
infostr="$infostr HTTP 5xx Count is Warning."
out5=$STATE_WARNING
fi
fi
if [ $outa -eq $STATE_CRITICAL ] || [ $outr -eq $STATE_CRITICAL ] || [ $out5 -eq $STATE_CRITICAL ] || \
[ $out2 -eq $STATE_CRITICAL ] || [ $out3 -eq $STATE_CRITICAL ] || [ $out4 -eq $STATE_CRITICAL ]; then
finalstat=$STATE_CRITICAL
elif [ $outa -eq $STATE_WARNING ] || [ $outr -eq $STATE_WARNING ] || [ $out5 -eq $STATE_WARNING ] || \
[ $out2 -eq $STATE_WARNING ] || [ $out3 -eq $STATE_WARNING ] || [ $out4 -eq $STATE_WARNING ]; then
finalstat=$STATE_WARNING
else
finalstat=$STATE_OK
fi
# If the Minimum Access Count is not reached then force OK!
if [ $accesscount -lt $theminia ]; then
infostr="Access count is below min required ${theminia}. Forcing OK. $infostr"
finalstat=$STATE_OK
fi
outstrh_a="Access Count=${accesscount}"
outstrh_r="Response Time=${responsetime}us"
outstrh_2="HTTP 2xx Count=${http2cnt}"
outstrh_3="HTTP 3xx Count=${http3cnt}"
outstrh_4="HTTP 4xx Count=${http4cnt}"
outstrh_5="HTTP 5xx Count=${http5cnt}"
outstrp_a="'Access Count'=${accesscount};${thewarna};${thecrita};0"
outstrp_r="'Response Time'=${responsetime}us;${thewarnr};${thecritr};0"
outstrp_2="'HTTP 2xx Count'=${http2cnt};${thewarn2};${thecrit2};0"
outstrp_3="'HTTP 3xx Count'=${http3cnt};${thewarn3};${thecrit3};0"
outstrp_4="'HTTP 4xx Count'=${http4cnt};${thewarn4};${thecrit4};0"
outstrp_5="'HTTP 5xx Count'=${http5cnt};${thewarn5};${thecrit5};0"
infostr=`echo $infostr|sed 's/^ //'`
echo "$infostr $outstrh_a $outstrh_r $outstrh_2 $outstrh_3 $outstrh_4 $outstrh_5|$outstrp_a $outstrp_r $outstrp_2 $outstrp_3 $outstrp_4 $outstrp_5"
#echo "$themetric Check Unknown"
exit $finalstat
