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#!rsc by RouterOS
# RouterOS script: check-health
# Copyright (c) 2019-2022 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 CheckHealthLast;
:global CheckHealthTemperature;
:global CheckHealthTemperatureDeviation;
:global CheckHealthTemperatureNotified;
:global CheckHealthVoltageLow;
:global CheckHealthVoltagePercent;
:global Identity;
:global IfThenElse;
:global LogPrintExit2;
:global ScriptLock;
:global SendNotification2;
:global SymbolForNotification;
:local FormatVoltage do={
:local Voltage [ :tonum $1 ];
:return (($Voltage / 10) . "." . [ :pick $Voltage ([ :len $Voltage ] - 1) ] . "V");
}
:local CheckHealthCurrent [ / system health get ];
:if ([ :len $CheckHealthCurrent ] = 0) do={
$LogPrintExit2 error $0 ("Your device does not provide any health values.") true;
}
:if ([ :typeof $CheckHealthTemperatureNotified ] != "array") do={
:set CheckHealthTemperatureNotified [ :toarray "" ];
}
$ScriptLock $0;
:foreach Name,Voltage in=$CheckHealthCurrent do={
:if ($Name ~ "(battery|voltage)" && \
[ :typeof ($CheckHealthLast->$Name) ] = "num" && \
[ :typeof $Voltage ] = "num") do={
:if ($CheckHealthLast->$Name * (100 + $CheckHealthVoltagePercent) < $Voltage * 100 || \
$CheckHealthLast->$Name * 100 > $Voltage * (100 + $CheckHealthVoltagePercent)) do={
$SendNotification2 ({ origin=$0; \
subject=([ $SymbolForNotification ("high-voltage-sign,chart-" . [ $IfThenElse ($CheckHealthLast->$Name < \
$Voltage) "in" "de" ] . "creasing") ] . "Health warning: " . $Name); \
message=("The " . $Name . " on " . $Identity . " jumped more than " . $CheckHealthVoltagePercent . "%.\n\n" . \
"old value: " . [ $FormatVoltage ($CheckHealthLast->$Name) ] . "\n" . \
"new value: " . [ $FormatVoltage $Voltage ]) });
} else={
:if ($Voltage <= $CheckHealthVoltageLow && $CheckHealthLast->$Name > $CheckHealthVoltageLow) do={
$SendNotification2 ({ origin=$0; \
subject=([ $SymbolForNotification "high-voltage-sign,chart-decreasing" ] . "Health warning: Low " . $Name); \
message=("The " . $Name . " on " . $Identity . " dropped to " . [ $FormatVoltage $Voltage ] . " below hard limit.") });
}
:if ($Voltage > $CheckHealthVoltageLow && $CheckHealthLast->$Name <= $CheckHealthVoltageLow) do={
$SendNotification2 ({ origin=$0; \
subject=([ $SymbolForNotification "high-voltage-sign,chart-increasing" ] . "Health recovery: Low " . $Name); \
message=("The " . $Name . " on " . $Identity . " recovered to " . [ $FormatVoltage $Voltage ] . " above hard limit.") });
}
}
}
}
:foreach Name,PSU in=$CheckHealthCurrent do={
:if ($Name ~ "psu.*-state" && \
[ :typeof ($CheckHealthLast->$Name) ] = "str" && \
[ :typeof $PSU ] = "str") do={
:if ($CheckHealthLast->$Name = "ok" && \
$PSU != "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" && \
$PSU = "ok") do={
$SendNotification2 ({ origin=$0; \
subject=([ $SymbolForNotification "white-heavy-check-mark" ] . "Health recovery: " . $Name); \
message=("The power supply unit '" . $Name . "' on " . $Identity . " recovered!") });
}
}
}
:foreach Name,Temperature in=$CheckHealthCurrent do={
:if ($Name ~ "temperature" && \
[ :typeof $Temperature ] = "num") do={
:if ([ :typeof ($CheckHealthTemperature->$Name) ] != "num" ) do={
$LogPrintExit2 info $0 ("No threshold given for " . $Name . ", assuming 50C.") false;
:set ($CheckHealthTemperature->$Name) 50;
}
:local Validate [ / system health get $Name ];
:while ($Temperature != $Validate) do={
:set Temperature $Validate;
:set Validate [ / system health get $Name ];
}
:if ($Temperature > $CheckHealthTemperature->$Name && \
$CheckHealthTemperatureNotified->$Name != true) do={
$SendNotification2 ({ origin=$0; \
subject=([ $SymbolForNotification "fire" ] . "Health warning: " . $Name); \
message=("The " . $Name . " on " . $Identity . " is above threshold: " . \
$Temperature . "\C2\B0" . "C") });
:set ($CheckHealthTemperatureNotified->$Name) true;
}
:if ($Temperature <= ($CheckHealthTemperature->$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: " . \
$Temperature . "\C2\B0" . "C") });
:set ($CheckHealthTemperatureNotified->$Name) false;
}
}
}
:set CheckHealthLast $CheckHealthCurrent;
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