check_hw_ipmi_linux

#!/bin/bash
# +-----------------------------------------------------------------------------------------+
# |  Dit nrpe script checked de IPMI console voor fans en temp status                       |
# |  Geschreven voor SuperMicro, Prolly Universeel                                          |
# | Januari 2012 flip hess [email protected]                                              |
# +-----------------------------------------------------------------------------------------+

# Global variables:

PATH='/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin'
SCRIPT_PATH="${0}"
ARGS="${#}"
ARG1="${1}"
ARG2="${2}"
ARG3="${3}"

STATE_OK="0"
STATE_WARNING="1"
STATE_CRITICAL="2"
STATE_UNKNOWN="3"

# Functions:

  # exit function
  function die()
  {
    # output
    echo -e "Error in ${SCRIPT_PATH}:\n${1}"

    # return state unknown
    exit ${STATE_UNKNOWN}
  }

  # Shows usage function.
  function fShowUsage()
  {
    echo -e "Usage: ${SCRIPT_PATH} [fans|temp <warn> <crit> ]\n
    help     Show Usage
    fans     Check IPMI FAN status
    temp     Check IPMI TEMP status\n
    this plugin is using the installer
    Check IPMI on Linux - [email protected]\n\nVersie 1.0"

    exit ${STATE_UNKNOWN}
  }

  # function FANS
  function fRunFans()
  {
     #check state file
     [ -s /tmp/ipmi-fans ] || \
   { fCheckReset && { echo "WARNING - check has been reset - a new /tmp/ipmi-fans error state file is created" ; exit "${STATE_WARNING}"; };}

     # get info
     local TEMP="$(mktemp)"
     { sudo /usr/bin/ipmitool sdr list all | grep -E '(FAN\ [0-9]\ )'  | sed -e 's/|\ [ 0-9 ]\+.\+RPM//g' -e 's/\ \+//g'  > ${TEMP} ; } || \
      die "Failed to Get IPMI Fans info!"

     local TOTAL="$( cat "${TEMP}" |grep '|ok' | wc -l )"
     local OLDTOTAL="$( cat /tmp/ipmi-fans | grep '|ok' | wc -l )"

     local DELTA="$( echo "$(( ${TOTAL} - ${OLDTOTAL} ))" | tr -d '-')"

     # diff
     DIFFS="$( diff "${TEMP}" "/tmp/ipmi-fans" | grep -E '(<|>)' | sed -e 's/^>/Old:/g' -e 's/^</New:/g' -e 's/\n/ /g' | paste -s -d ' ' )"

     # make results
     if [ -z "${DIFFS}" ] ; then
       rm ${TEMP}
       echo -e "ALL OK: FAN Status did not change - Total fans: ${TOTAL}"
       exit ${STATE_OK}
     else
       echo -e "CRITICAL: Fan Status has changed: ${DELTA} Fan(s) changed!  Total fans OK: ${TOTAL}"
       echo "${DIFFS}"
       exit ${STATE_CRITICAL}
     fi

     return 0
  }


  # function TEMP
  function fRunTemp()
  {
   local WARN="${ARG2}"
   local CRIT="${ARG3}"
   # get systemp
   HEAT="$( /usr/bin/ipmitool sdr list all | grep 'System Temp' | awk -F'|' '{print $2}' | tr -d "a-zA-Z " )"

   # make results
   if [ ${HEAT} -lt ${WARN} ] ; then
      { echo -e "OKAY - System  Temperture is ${HEAT} degrees Celsius" ; exit ${STATE_OK}; }
   elif [ ${HEAT} -gt ${WARN} ] && [ ${HEAT} -lt ${CRIT} ] ; then
      { echo -e "WARNING - System Temperture is higher than ${WARN} degrees Celsius: Temperture is now ${HEAT} degrees Celsuis!\n${HEAT}" ; exit ${STATE_WARNING}; }
   elif [ ${HEAT} -gt ${WARN} ] && [ ${HEAT} -gt ${CRIT} ] ; then
      { echo -e "CRITICAL - System Temperture is higher than ${CRIT} degrees Celsius: Temperture is now ${HEAT} degrees Celsius!\n${HEAT}" ; exit ${STATE_CRITICAL}; }
   else
      { echo -e "UNKNOWN! - This plugin SUCKS! - Please check the code for debugging..." ; exit ${STATE_UNKNOWN}; }
   fi

  }

  # resets
  function fCheckReset()
  {
    # Reset state old file
    if [ ! -f /tmp/ipmi-fans ] ; then
       touch /tmp/ipmi-fans
       sudo /usr/bin/ipmitool sdr list all | grep -E '(FAN\ [0-9]\ )'  | sed -e 's/|\ [ 0-9 ]\+.\+RPM//g' -e 's/\ \+//g'  > /tmp/ipmi-fans
    fi

    return 0
  }

  # The main function.
  function fMain()
  {
    # script o depends on:
    [ -x /usr/bin/ipmitool ] || die "This script depends on IPMITOOL, please install it: \"apt-get install ipmitool\""

    # check if accessible
    if ( ipmitool | grep -qE '(Unable|Could not open device)' ) ;  then
     { echo -e "UNKNOWN! - Unable to open BMC Sensors for reading!" ; exit ${STATE_UNKNOWN}; }
    fi

     #get options dmv case
      case ${ARG1} in
        # check fannekes
        fans)
          # check arguments
          [ ${ARGS} = 1 ] || fShowUsage
          # run check
          fRunFans
          ;;
        # check temperture
        temp)
          # check arguments
          [ ${ARGS} = 3 ] || fShowUsage
          { CHECK1="$( echo ${ARG2} | tr -d "[:digit:] ")" && [ -z ${CHECK1} ]; } || die "Please supply only numbers as a warning or critical value!"
          { CHECK2="$( echo ${ARG3} | tr -d "[:digit:] ")" && [ -z ${CHECK2} ]; } || die "Please supply only numbers as a warning or critical value!"
          { [ ${ARG2} -gt 0 ] && [ ${ARG2} -lt 100 ]; }       || die "You Suck! Please supply \"reasonable\" values for temperture!"
          { [ ${ARG3} -gt 0 ] && [ ${ARG3} -lt 100 ]; }       || die "You Suck! Please supply \"reasonable\" values for temperture!"
          # run check
          fRunTemp
          ;;
        # de rest van de meuk
        help)
          fShowUsage
          ;;
        *)
          fShowUsage
          ;;
      esac

    return 0
  }

 # Start the program:
  fMain

 # Exit with previous return code:
  exit "${?}"