Jeroen De Meerleer
ecc00c776c
The commit refactors the shell scripts for checking disk, load and memory usage. The changes include updating the usage instructions and options for each script. The new options allow users to set warning and critical levels for each check.
107 lines
2.9 KiB
Bash
107 lines
2.9 KiB
Bash
#!/bin/bash
|
|
|
|
#
|
|
#/
|
|
#/ Usage:
|
|
#/ check-memory.sh --warning=<level> --critical=<level>
|
|
#/
|
|
#/ Checks the memory usage
|
|
#/
|
|
#/ Options:
|
|
#/ -w, --warning=<level> The level of when to trigger a warning (level=loadavg/nproc)
|
|
#/ -c, --critical=<level> The level of when to trigger a critical warning (level=loadavg/nproc)
|
|
#/
|
|
#/ Exit Codes:
|
|
#/ 0 Everything OK
|
|
#/ 1 Warning level exceeded
|
|
#/ 2 Critical level exceeded
|
|
#/ 3 Unknown status
|
|
#/
|
|
|
|
|
|
Usage() {
|
|
grep '^#/' "${script_dir}/${script_name}" | sed 's/^#\/\w*//'
|
|
}
|
|
|
|
GetOptions() {
|
|
# https://stackoverflow.com/a/29754866
|
|
OPTIONS=w:c:
|
|
LONGOPTS=warning:,critical:
|
|
|
|
# -use ! and PIPESTATUS to get exit code with errexit set
|
|
# -temporarily store output to be able to check for errors
|
|
# -activate quoting/enhanced mode (e.g. by writing out “--options”)
|
|
# -pass arguments only via -- "$@" to separate them correctly
|
|
! PARSED=$(getopt --options=$OPTIONS --longoptions=$LONGOPTS --name "$0" -- "$@")
|
|
if [[ ${PIPESTATUS[0]} -ne 0 ]]; then
|
|
# e.g. return value is 1
|
|
# then getopt has complained about wrong arguments to stdout
|
|
Usage
|
|
exit 2
|
|
fi
|
|
|
|
# read getopt's output this way to handle the quoting right:
|
|
eval set -- "$PARSED"
|
|
|
|
# now enjoy the options in order and nicely split until we see --
|
|
while true; do
|
|
case "$1" in
|
|
-w|--warning)
|
|
warn="$2"
|
|
shift 2
|
|
;;
|
|
-c|--critital)
|
|
crit="$2"
|
|
shift 2
|
|
;;
|
|
--)
|
|
shift
|
|
break
|
|
;;
|
|
*)
|
|
echo "MEMORY UNKNOWN - ${1} is not a valid parameter"
|
|
exit 3
|
|
;;
|
|
esac
|
|
done
|
|
}
|
|
LC_NUMERIC="C"
|
|
warn=0.7
|
|
crit=0.9
|
|
script_name=$(basename "${0}")
|
|
script_dir=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
|
|
possibleavarages=("1" "5" "15")
|
|
GetOptions "$@"
|
|
|
|
totalfull=$(cat /proc/meminfo | grep MemTotal | awk '{ print $2; }')
|
|
availfull=$(cat /proc/meminfo | grep MemAvailable | awk '{ print $2; }')
|
|
usedfull=$(echo ${totalfull}-${availfull} | bc)
|
|
|
|
val=$(echo "${usedfull}/${totalfull}" | bc -l)
|
|
|
|
if (( $(echo "$val < ${warn}" | bc -l) )); then
|
|
rval=0
|
|
rmsg="OK"
|
|
elif (( $(echo "$val < ${crit}" | bc -l) )); then
|
|
rval=1
|
|
rmsg="WARNING"
|
|
else
|
|
rval=2
|
|
rmsg="CRITICAL"
|
|
fi
|
|
critfull=$(echo ${totalfull}\*${crit} | bc -l | awk '{ print int($1+0.5) }')
|
|
warnfull=$(echo ${totalfull}\*${warn} | bc -l | awk '{ print int($1+0.5) }')
|
|
minfull=0
|
|
maxfull=${totalfull}
|
|
unitfull="KiB"
|
|
|
|
used100=$(printf %.1f $(echo ${val}\*100 | bc -l))
|
|
crit100=$(printf %.1f $(echo ${crit}\*100 | bc -l))
|
|
warn100=$(printf %.1f $(echo ${warn}\*100 | bc -l))
|
|
min100=0
|
|
max100=100
|
|
unit100="%"
|
|
|
|
echo "MEMORY ${rmsg} - Used: ${usedfull} Available: ${availfull} Total: ${totalfull}|mem=${usedfull}${unitfull};$warnfull;$critfull;$minfull;$maxfull mem%=${used100}${unit100};$warn100;$crit100;$min100;$max100"
|
|
exit $rval
|