check_max_uptime_nagios_nrpe

#!/bin/bash
# flip hess november 2011 [email protected]
# nagios check 200 days uptime KVM bug

# Variables

  PATH='/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin'
  SCRIPT_PATH="${0}"

  DATE="$(date '+%Y%m%d-%H%M')"
  STATE_OK="0"
  STATE_WARNING="1"
  STATE_CRITICAL="2"
  STATE_UNKNOWN="3"


# Functions:

# The main function.
function fCheck()
{
  # check if arguments are valid:
  [ ! -z ${WARN} ] || { fShowUsage ; exit "${STATE_UNKNOWN}"; }
  [ ! -z ${CRIT} ] || { fShowUsage ; exit "${STATE_UNKNOWN}"; }

  # get info
  UPTIME="$( cat /proc/uptime )"

  SECS="$( echo "${UPTIME}" | awk '{print $1}' | cut -d. -f1 )"
  IDLE="$( echo "${UPTIME}" | awk '{print $2}' | cut -d. -f1 )s"
  MINS="$(( ${SECS} / 60 ))"
  HRS="$((  ${MINS} / 60 ))"
  DAYS="$(( ${HRS}  / 24 ))"

  # make results
   if [ "${DAYS}" != 0 ] ; then
      if [ ${DAYS} -lt ${WARN} ]; then
         { echo -e    "OKAY: Up: ${DAYS} days, Warn: ${WARN} days, Crit: ${CRIT} days | 'UP'=${DAYS};${WARN};${CRIT};1;200 'CPU-idle'=${IDLE};;;;;" ; exit ${STATE_OK}; }

     elif [ ${DAYS} -gt ${WARN} ] && [ ${DAYS} -le ${CRIT} ]; then
         { echo -e "WARNING: Up: ${DAYS} days, Warn: ${WARN} days, Crit: ${CRIT} days | 'UP'=${DAYS};${WARN};${CRIT};1;200 'CPU-idle'=${IDLE};;;;;" ; exit ${STATE_WARNING}; }

     elif [ ${DAYS} -gt ${CRIT} ] ; then
      { echo -e   "CRITICAL: Up: ${DAYS} days, Warn: ${WARN} days, Crit: ${CRIT} days | 'UP'=${DAYS};${WARN};${CRIT};1;200 'CPU-idle'=${IDLE};;;;;" ; exit ${STATE_CRITICAL}; }

     fi
   else
      { echo -e "OK - System uptime less than a day! - KVM bug = 200 days | 'UP'=${DAYS};${WARN};${CRIT};1;200 'CPU-idle'=${IDLE};;;;;" ; exit ${STATE_OK}; }
   fi

}

# The main function.
function fMain()
{
  #get options and set vars
  while getopts "w:c:v" OPTION ; do
    case ${OPTION} in
      w) WARN="${OPTARG}";;
      c) CRIT="${OPTARG}";;
      h) fShowUsage;;
      ?) fShowUsage;;
    esac
  done

  # trap de check af
  fCheck
}

# Shows usage.
function fShowUsage()
{
  echo "Usage: ${SCRIPT_PATH} [ -w WARNING ] [ -c CRITICAL ] [ -h ]"
  echo "Check Max Linux uptime with NRPE - [email protected] 2012-07"
  return 0
}


# Start the program:
fMain "${@}"