#!rsc # RouterOS script: netwatch-notify # Copyright (c) 2020 Christian Hesse <mail@eworm.de> # # monitor netwatch and send notifications :global NetwatchNotify; :global ParseKeyValueStore; :global LogPrintExit; :global SendNotification; :if ([ :typeof $NetwatchNotify ] = "nothing") do={ :set NetwatchNotify [ :toarray "" ]; } :foreach Host in=[ / tool netwatch find where comment~"^notify," ] do={ :local HostVal [ / tool netwatch get $Host ]; :local HostName ([ $ParseKeyValueStore ($HostVal->"comment") ]->"hostname"); :local Metric { "count"=0; "notified"=false }; :if ([ :typeof ($NetwatchNotify->$HostName) ] = "array") do={ :set $Metric ($NetwatchNotify->$HostName); } :if ($HostVal->"status" = "up") do={ $LogPrintExit debug ("Host " . $HostName . " (" . $HostVal->"host" . ") is up.") false; :local Count ($Metric->"count"); :set ($Metric->"count") 0; :if ($Metric->"notified" = true) do={ $SendNotification ("Netwatch Notify: \E2\9C\85 " . $HostName . " up") \ ("Host " . $HostName . " (" . $HostVal->"host" . ") is up since " . $HostVal->"since" . ".\n" . \ "It was down for " . $Count . " checks."); } :set ($Metric->"notified") false; } else={ :set ($Metric->"count") ($Metric->"count" + 1); $LogPrintExit info ("Host " . $HostName . " (" . $HostVal->"host" . ") is down for " . \ $Metric->"count" . " checks.") false; :if ($Metric->"count" >= 5 && $Metric->"notified" != true) do={ $SendNotification ("Netwatch Notify: \E2\9D\8C " . $HostName . " down") \ ("Host " . $HostName . " (" . $HostVal->"host" . ") is down since " . $HostVal->"since" . "."); :set ($Metric->"notified") true; } } :set ($NetwatchNotify->$HostName) { "count"=($Metric->"count"); "notified"=($Metric->"notified") }; }