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#!rsc by RouterOS
# RouterOS script: check-health
# Copyright (c) 2019-2023 Christian Hesse <mail@eworm.de>
# https://git.eworm.de/cgit/routeros-scripts/about/COPYING.md
#
# check for RouterOS health state
# https://git.eworm.de/cgit/routeros-scripts/about/doc/check-health.md
:local 0 "check-health";
:global GlobalFunctionsReady;
:while ($GlobalFunctionsReady != true) do={ :delay 500ms; }
:global CheckHealthCPUUtilization;
:global CheckHealthCPUUtilizationNotified;
:global CheckHealthFreeRAMNotified;
:global CheckHealthLast;
:global CheckHealthTemperature;
:global CheckHealthTemperatureDeviation;
:global CheckHealthTemperatureNotified;
:global CheckHealthVoltageLow;
:global CheckHealthVoltagePercent;
:global Identity;
:global FormatLine;
:global IfThenElse;
:global LogPrintExit2;
:global ScriptLock;
:global SendNotification2;
:global SymbolForNotification;
:local TempToNum do={
:global CharacterReplace;
:local T [ :toarray [ $CharacterReplace $1 "." "," ] ];
:return ($T->0 * 10 + $T->1);
}
$ScriptLock $0;
:local Resource [ /system/resource/get ];
:set CheckHealthCPUUtilization (($CheckHealthCPUUtilization * 4 + ($Resource->"cpu-load") * 10) / 5);
:if ($CheckHealthCPUUtilization > 750 && $CheckHealthCPUUtilizationNotified != true) do={
$SendNotification2 ({ origin=$0; \
subject=([ $SymbolForNotification "abacus,chart-increasing" ] . "Health warning: CPU utilization"); \
message=("The average CPU utilization on " . $Identity . " is at " . ($CheckHealthCPUUtilization / 10) . "%!") });
:set CheckHealthCPUUtilizationNotified true;
}
:if ($CheckHealthCPUUtilization < 650 && $CheckHealthCPUUtilizationNotified = true) do={
$SendNotification2 ({ origin=$0; \
subject=([ $SymbolForNotification "abacus,chart-decreasing" ] . "Health recovery: CPU utilization"); \
message=("The average CPU utilization on " . $Identity . " decreased to " . ($CheckHealthCPUUtilization / 10) . "%.") });
:set CheckHealthCPUUtilizationNotified false;
}
:local CheckHealthFreeRAM ($Resource->"free-memory" * 100 / $Resource->"total-memory");
:if ($CheckHealthFreeRAM < 20 && $CheckHealthFreeRAMNotified != true) do={
$SendNotification2 ({ origin=$0; \
subject=([ $SymbolForNotification "card-file-box,chart-decreasing" ] . "Health warning: free RAM"); \
message=("The available free RAM on " . $Identity . " is at " . $CheckHealthFreeRAM . "% (" . \
($Resource->"free-memory" / 1024 / 1024) . "MiB)!") });
:set CheckHealthFreeRAMNotified true;
}
:if ($CheckHealthFreeRAM > 30 && $CheckHealthFreeRAMNotified = true) do={
$SendNotification2 ({ origin=$0; \
subject=([ $SymbolForNotification "card-file-box,chart-increasing" ] . "Health recovery: free RAM"); \
message=("The available free RAM on " . $Identity . " increased to " . $CheckHealthFreeRAM . "% (" . \
($Resource->"free-memory" / 1024 / 1024) . "MiB).") });
:set CheckHealthFreeRAMNotified false;
}
:if ([ :len [ /system/health/find ] ] = 0) do={
$LogPrintExit2 debug $0 ("Your device does not provide any health values.") true;
}
:if ([ :typeof $CheckHealthLast ] != "array") do={
:set CheckHealthLast ({});
}
:if ([ :typeof $CheckHealthTemperatureNotified ] != "array") do={
:set CheckHealthTemperatureNotified ({});
}
:foreach Voltage in=[ /system/health/find where type="V" ] do={
:local Name [ /system/health/get $Voltage name ];
:local Value [ /system/health/get $Voltage value ];
:if ([ :typeof ($CheckHealthLast->$Name) ] != "nothing") do={
:local NumCurr [ $TempToNum $Value ];
:local NumLast [ $TempToNum ($CheckHealthLast->$Name) ];
:if ($NumLast * (100 + $CheckHealthVoltagePercent) < $NumCurr * 100 || \
$NumLast * 100 > $NumCurr * (100 + $CheckHealthVoltagePercent)) do={
$SendNotification2 ({ origin=$0; \
subject=([ $SymbolForNotification ("high-voltage-sign,chart-" . [ $IfThenElse ($NumLast < \
$NumCurr) "in" "de" ] . "creasing") ] . "Health warning: " . $Name); \
message=("The " . $Name . " on " . $Identity . " jumped more than " . $CheckHealthVoltagePercent . "%.\n\n" . \
[ $FormatLine "old value" ($CheckHealthLast->$Name . " V") ] . "\n" . \
[ $FormatLine "new value" ($Value . " V") ]) });
} else={
:if ($NumCurr <= $CheckHealthVoltageLow && $NumLast > $CheckHealthVoltageLow) do={
$SendNotification2 ({ origin=$0; \
subject=([ $SymbolForNotification "high-voltage-sign,chart-decreasing" ] . "Health warning: Low " . $Name); \
message=("The " . $Name . " on " . $Identity . " dropped to " . $Value . " V below hard limit.") });
}
:if ($NumCurr > $CheckHealthVoltageLow && $NumLast <= $CheckHealthVoltageLow) do={
$SendNotification2 ({ origin=$0; \
subject=([ $SymbolForNotification "high-voltage-sign,chart-increasing" ] . "Health recovery: Low " . $Name); \
message=("The " . $Name . " on " . $Identity . " recovered to " . $Value . " V above hard limit.") });
}
}
}
:set ($CheckHealthLast->$Name) $Value;
}
:foreach PSU in=[ /system/health/find where name~"^psu.*-state\$" ] do={
:local Name [ /system/health/get $PSU name ];
:local Value [ /system/health/get $PSU value ];
:if ([ :typeof ($CheckHealthLast->$Name) ] != "nothing") do={
:if ($CheckHealthLast->$Name = "ok" && \
$Value != "ok") do={
$SendNotification2 ({ origin=$0; \
subject=([ $SymbolForNotification "cross-mark" ] . "Health warning: " . $Name); \
message=("The power supply unit '" . $Name . "' on " . $Identity . " failed!") });
}
:if ($CheckHealthLast->$Name != "ok" && \
$Value = "ok") do={
$SendNotification2 ({ origin=$0; \
subject=([ $SymbolForNotification "white-heavy-check-mark" ] . "Health recovery: " . $Name); \
message=("The power supply unit '" . $Name . "' on " . $Identity . " recovered!") });
}
}
:set ($CheckHealthLast->$Name) $Value;
}
:foreach Temperature in=[ /system/health/find where type="C" ] do={
:local Name [ /system/health/get $Temperature name ];
:local Value [ /system/health/get $Temperature value ];
:if ([ :typeof ($CheckHealthLast->$Name) ] != "nothing") do={
:if ([ :typeof ($CheckHealthTemperature->$Name) ] != "num" ) do={
$LogPrintExit2 info $0 ("No threshold given for " . $Name . ", assuming 50C.") false;
:set ($CheckHealthTemperature->$Name) 50;
}
:local Validate [ /system/health/get [ find where name=$Name ] value ];
:while ($Value != $Validate) do={
:set Value $Validate;
:set Validate [ /system/health/get [ find where name=$Name ] value ];
}
:if ($Value > $CheckHealthTemperature->$Name && \
$CheckHealthTemperatureNotified->$Name != true) do={
$SendNotification2 ({ origin=$0; \
subject=([ $SymbolForNotification "fire" ] . "Health warning: " . $Name); \
message=("The " . $Name . " on " . $Identity . " is above threshold: " . \
$Value . "\C2\B0" . "C") });
:set ($CheckHealthTemperatureNotified->$Name) true;
}
:if ($Value <= ($CheckHealthTemperature->$Name - $CheckHealthTemperatureDeviation) && \
$CheckHealthTemperatureNotified->$Name = true) do={
$SendNotification2 ({ origin=$0; \
subject=([ $SymbolForNotification "white-heavy-check-mark" ] . "Health recovery: " . $Name); \
message=("The " . $Name . " on " . $Identity . " dropped below threshold: " . \
$Value . "\C2\B0" . "C") });
:set ($CheckHealthTemperatureNotified->$Name) false;
}
}
:set ($CheckHealthLast->$Name) $Value;
}
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