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Filename : a2_temperature_check.shared.bmi
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#!/bin/bash
# SYSENG-20654

if ! which ipmitool >/dev/null 2>&1; then
  echo "ipmitool not found"
  exit 2
fi

inlet_temp=$(ipmitool sensor get "Inlet Temp" 2>&1 | grep "Reading" | awk '{ print $4 }')
sys_temp=$(ipmitool sensor get "System Temp" 2>&1 | grep "Reading" | awk '{ print $4 }')
# notify levels
inlet_warn=45
inlet_crit=55
cpu_warn=60
cpu_crit=70
disk_warn=55
disk_crit=60
warnings="Temperature "
ok="Temperature OK"
ipmi_crit="Unable to get systems temperature, please check the ipmitool"
display_warn=0

cpu_temp () {
  declare -A cpu_temps
  local warn_found=0

  # put cpu and temp in an array
  while IFS=' ' read -r cpu temp; do
    cpu_temps[$cpu]=$temp # assign the temperature to the cpu in array
  done < <(ipmitool sdr list | grep 'CPU.*Temp' | awk '{print $1, $4}')
    
  # loop through array
  for cpu in "${!cpu_temps[@]}"; do
    crit_cpu_msg="$cpu temperature is over ${cpu_crit}C, please investigate"
    if [ -n "${cpu_temps[$cpu]}" ] && [ "${cpu_temps[$cpu]}" -gt "$cpu_crit" ]; then
      echo "$crit_cpu_msg"
      exit 2
    elif [ -n "${cpu_temps[$cpu]}" ] && [ "${cpu_temps[$cpu]}" -gt "$cpu_warn" ]; then 
      warnings+="$cpu-${cpu_temps[$cpu]}C "
      warn_found=1
      display_warn=1
    fi
  done

  if [ "$warn_found" -eq 1 ]; then
    warnings+="CPU Warn threshold - ${cpu_warn}C "
  fi
}

inlet_temp () {
  crit_inlet_msg="inlet temperature is over ${inlet_crit}C, please investigate"

  # if inlet temp doesn't display a number, then it's older and not supported on this system
  if [[ "$inlet_temp" =~ ^[0-9]+([.][0-9]+)?$ ]]; then
    if [ -n "$inlet_temp" ] && [ "$inlet_temp" -gt "$inlet_crit" ]; then
       echo "$crit_inlet_msg"
       exit 2
    elif [ -n "$inlet_temp" ] && [ "$inlet_temp" -gt "$inlet_warn" ]; then
      warnings+="inlet-${inlet_temp}C "
      display_warn=1
    fi
  # sys_temp is found on legacy x10 systems
  elif [[ "$sys_temp" =~ ^[0-9]+([.][0-9]+)?$ ]]; then
    if [ -n "$sys_temp" ] && [ "$sys_temp" -gt "$inlet_crit" ]; then
      echo "$crit_inlet_msg"
      exit 2
    elif [ -n "$sys_temp" ] && [ "$sys_temp" -gt "$inlet_warn" ]; then
      warnings+="inlet-${sys_temp}C "
      display_warn=1
    fi
  else
    echo "$ipmi_crit"
    exit 2
  fi
}

disk_temp () {
  readarray -t disks < <(lsblk -d | grep disk | grep -v ploop | cut -d ' ' -f1)
  local warn_found=0

  for disk in "${disks[@]}"; do
    # Check if the disk name matches the pattern "sd*"
    if [[ $disk == sd* ]]; then
      disk_temp=$(smartctl -a /dev/"$disk" | grep Temperature | awk '{ print $10 }' | head -1)
    else
      disk_temp=$(smartctl -a /dev/"$disk" |grep Temperature: | awk '{ print $2 }' | head -1)
    fi

    crit_disk_msg="$disk temperature is over ${disk_crit}C, please investigate"

    if [ -n "$disk_temp" ] && [ "$disk_temp" -gt "$disk_crit" ]; then
      echo "$crit_disk_msg"
      exit 2
    elif [ -n "$disk_temp" ] && [ "$disk_temp" -gt "$disk_warn" ]; then
      warnings+="$disk-${disk_temp}C "
      warn_found=1
      display_warn=1
    fi
  done

  if [ "$warn_found" -eq 1 ]; then
    warnings+="DISK Warn threshold - ${disk_warn}C"
  fi
}

cpu_temp
inlet_temp
disk_temp

if [ "$display_warn" -eq 1 ]; then
  echo "$warnings"
  exit 1
else
  echo "$ok"
fi