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Yavuz Aydın 2021-01-07 15:35:38 +01:00
parent 88f3eee952
commit 203f9d02db
1 changed files with 154 additions and 0 deletions
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#!/bin/bash
##############################################################################################
# #
# 88 #
# 88 #
# 88 #
# ,adPPYba, 8b,dPPYba, ,adPPYba, 88 ,adPPYba, ,adPPYba, 88,dPYba,,adPYba, #
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# `"Y8ba, 88 88 8PP""""""" 88 8b 8b d8 88 88 88 #
# aa ]8I 88 88 "8b, ,aa 88 888 "8a, ,aa "8a, ,a8" 88 88 88 #
# `"YbbdP"' 88 88 `"Ybbd8"' 88 888 `"Ybbd8"' `"YbbdP"' 88 88 88 #
# #
# #
##############################################################################################
# #
# Author: Andreas Maus <maus@ypbind.de> / Snel.com - Yavuz Aydin #
# E-mail: support@snel.com #
# (c) Snel.com - all rights reserved #
# #
##############################################################################################
# #
# Script: check_reboot-required #
# License: This file is licensed under the GPLv3 License #
# Purpose: Check if reboot is required #
# #
##############################################################################################
# #
# Changelog: #
# #
##############################################################################################
# #
# 2021/01/07 1.0 First release #
# #
##############################################################################################
OK=0
WARNING=1
CRITICAL=2
UNKNOWN=3
warn_only="false"
which lsb_release 2>/dev/null >/dev/null
if [ $? -ne 0 ]; then
echo "lsb_release is missing"
exit ${UNKNOWN}
fi
function usage() {
echo "check_reboot-required"
echo ""
echo "Usage: $0 [-w|--warn] [-h|--help]"
echo ""
echo " -h This text"
echo " --help"
echo ""
echo " -w Report warning (instead of a critical) condition if reboot is required"
echo " --warn"
echo ""
}
case $1 in
-w|--warn)
warn_only="true"
;;
-h|--help)
usage
exit 0
;;
esac
function check_debian() {
if [ -s /var/run/reboot-required ]; then
if [ -s /var/run/reboot-required.pkgs ]; then
packages=$(xargs < /var/run/reboot-required.pkgs)
else
packages=""
fi
if [ -z "${packages}" ]; then
if [ "${warn_only}" == "true" ]; then
echo "System reboot is required"
exit ${WARNING}
else
echo "System reboot is required"
exit ${CRITICAL}
fi
else
if [ "${warn_only}" == "true" ]; then
echo "System reboot is required by: ${packages}"
exit ${WARNING}
else
echo "System reboot is required by: ${packages}"
exit ${CRITICAL}
fi
fi
else
check_running_kernel
fi
}
function check_redhat() {
major=$(lsb_release -rs | cut -d '.' -f 1)
if [ ${major} -lt 7 ]; then
check_running_kernel
fi
output=$(needs-restarting -r | xargs)
if [ $? -eq 0 ]; then
echo "${output}"
exit ${OK}
elif [ $? -eq 1 ]; then
echo "${output}"
if [ "${warn_only}" == "true" ]; then
exit ${WARNING}
else
exit ${CRITICAL}
fi
fi
}
function check_running_kernel() {
newest_installed_kernel=`ls -t /boot/vmlinuz-* | sed "s/\/boot\/vmlinuz-//g" | head -n1`
running_kernel=`uname -r`
if [[ $newest_installed_kernel != $running_kernel ]]; then
if [ "${warn_only}" == "true" ]; then
echo "System reboot is required by a newer kernel"
exit ${WARNING}
else
echo "System reboot is required by a newer kernel"
exit ${CRITICAL}
fi
else
echo "No reboot required"
exit ${OK}
fi
}
distro=$(lsb_release -is)
case "${distro}" in
Debian|Ubuntu)
check_debian
;;
CentOS)
check_redhat
;;
*)
echo "Unsupported distribution ${distro}"
exit ${UNKNOWN}
;;
esac
# Never reached
exit ${UNKNOWN}