ansible-roles/evolinux-base/files/check_hpraid.cron.sh
Benoît S. fe1756d22a evolinux-base: check_hpraid.cron.sh: Better logic and use mail
First step is to detect errors
Second step is to detect different state

Added mail comand to replace cron output
2020-08-21 14:51:30 +02:00

95 lines
2.4 KiB
Bash

#!/usr/bin/env bash
set -euo pipefail
# This script is meant to be executed as a cron by executing Nagios
# NRPE plugin check_hpraid and notify by mail any errors
TMPDIR=/tmp
md5sum=$(command -v md5sum)
awk=$(command -v awk)
check_hpraid="/usr/local/lib/nagios/plugins/check_hpraid -v -p"
check_hpraid_output=$(mktemp -p $TMPDIR check_hpraid_XXX)
check_hpraid_last="$TMPDIR/check_hpraid_last"
# set to false to use cron output (MAILTO)
# otherwise send output with mail command
use_mail=true
body=$(mktemp --tmpdir=/tmp check_hpraid_XXX)
clientmail=$(grep EVOMAINTMAIL /etc/evomaintenance.cf | cut -d'=' -f2)
hostname=$(grep HOSTNAME /etc/evomaintenance.cf | cut -d'=' -f2)
hostname=${hostname%%.evolix.net}
# If hostname is composed with -, remove the first part.
if [[ $hostname =~ "-" ]]; then
hostname=$(echo "$hostname" | cut -d'-' -f2-)
fi
trap trapFunc EXIT ERR
testDeps() {
test -x "$md5sum" || (echo "md5sum binary not found"; exit 1)
test -x "$awk" || (echo "awk binary not found"; exit 1)
}
main() {
if ! $check_hpraid > "$check_hpraid_output"; then
error=true
else
error=false
fi
# If check_hpraid returned error, display output, save status and
# exit
if $error; then
cp "$check_hpraid_output" "$check_hpraid_last"
if $use_mail; then
mail -s "RAID error on $hostname" "$clientmail" \
<<< "$check_hpraid_output"
else
cat "$check_hpraid_output"
fi
exit 1
else
cp "$check_hpraid_output" $check_hpraid_last
exit 0
fi
if [ ! -f $check_hpraid_last ]; then
cp "$check_hpraid_output" $check_hpraid_last
fi
# If output and last check is different, display differences and
# exit
md5_now=$(md5sum "$check_hpraid_output" | awk '{print $1}')
md5_last=$(md5sum $check_hpraid_last | awk '{print $1}')
if [[ "$md5_now" != "$md5_last" ]]; then
cat << EOT > "$body"
Different RAID state detected.
Was:
$(sed 's/^/> /g' "$check_hpraid_last")
###########################
Is now:
$(sed 's/^/> /g' "$check_hpraid_output")
EOT
if $use_mail; then
mail -s "RAID status is different on $hostname" \
"$clientmail" <<< "$body"
else
cat "$body"
fi
cp "$check_hpraid_output" "$check_hpraid_last"
exit 1
fi
}
trapFunc() {
rm "$check_hpraid_output" "$body"
}
testDeps
main