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netwatch-notify: allow to suppress notification on host down

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This commit is contained in:
Christian Hesse 2022-02-03 13:51:40 +01:00
parent 42c203291a
commit c6e581d4f9
6 changed files with 23 additions and 10 deletions
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10
doc/netwatch-notify.md
View file

@ -78,6 +78,16 @@ But be warned: Dynamic updates will probably cause issues if the name has
more than one record in dns - a high rate of configuration changes (and flash
writes) at least.
### No notification on host down
Also suppressing the notification on host down is possible with parameter
`no-down-notification`. This may be desired for devices that are usually
powered off, but accessibility is of interest.
/ tool netwatch add comment="notify, hostname=printer, no-down-notification" host=10.0.0.30;
Go and get your coffee ☕️ before sending the print job.
Also notification settings are required for e-mail, matrix and/or telegram.
Tips & Tricks

2
global-config
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@ -8,7 +8,7 @@
# Make sure all configuration properties are up to date and this
# value is in sync with value in script 'global-functions'!
:global GlobalConfigVersion 75;
:global GlobalConfigVersion 76;
# This is used for DNS and backup file.
:global Domain "example.com";

2
global-config-overlay
View file

@ -8,7 +8,7 @@
# Make sure all configuration properties are up to date and this
# value is in sync with value in script 'global-functions'!
# Comment or remove to disable news and change notifications.
:global GlobalConfigVersion 75;
:global GlobalConfigVersion 76;
# Copy configuration from global-config here and modify it.

1
global-config.changes
View file

@ -84,6 +84,7 @@
75=("Finally merged the RouterOS v7 code into the main branch. " . [ $IfThenElse ([ $RequiredRouterOS "global-config.changes" "7.0" false ] = true) \
("You may now drop '\$ScriptUpdatesUrlSuffix' from 'global-config-overlay'.") \
("Still running RouterOS v6, so last reminder to see https://git.eworm.de/cgit/routeros-scripts/about/#changes-for-routeros-v6") ]);
76="Added an option to suppress notifications on host down with 'netwatch-notify'.";
};
# Migration steps to be applied on script updates

2
global-functions
View file

@ -8,7 +8,7 @@
# https://git.eworm.de/cgit/routeros-scripts/about/
# expected configuration version
:global ExpectedConfigVersion 75;
:global ExpectedConfigVersion 76;
# global variables not to be changed by user
:global GlobalFunctionsReady false;

16
netwatch-notify
View file

@ -122,10 +122,10 @@ $ScriptLock $0;
:set Parent ($NetwatchNotify->$Parent->"parent");
}
}
$LogPrintExit2 info $0 ("Host " . $HostName . " (" . $HostVal->"host" . ") is down for " . \
$Metric->"count" . " checks, " . [ $IfThenElse ($ParentNotified = false) [ $IfThenElse \
($Metric->"notified" = true) ("already notified.") ($Count - $Metric->"count" . " to go.") ] \
("parent host " . $Parent . " is down.") ]) false;
$LogPrintExit2 [ $IfThenElse ($HostInfo->"no-down-notification" != true) info debug ] $0 \
("Host " . $HostName . " (" . $HostVal->"host" . ") is down for " . $Metric->"count" . " checks, " . \
[ $IfThenElse ($ParentNotified = false) [ $IfThenElse ($Metric->"notified" = true) ("already notified.") \
($Count - $Metric->"count" . " to go.") ] ("parent host " . $Parent . " is down.") ]) false;
:if ((($Count * 2) - ($Metric->"count" * 3)) / 2 = 0 && [ :typeof ($HostInfo->"pre-down-hook") ] = "str") do={
$NetwatchNotifyHook $HostName "pre-down" ($HostInfo->"pre-down-hook");
}
@ -134,9 +134,11 @@ $ScriptLock $0;
:if ([ :typeof ($HostInfo->"down-hook") ] = "str") do={
:set Message ($Message . "\n\n" . [ $NetwatchNotifyHook $HostName "down" ($HostInfo->"down-hook") ]);
}
$SendNotification2 ({ origin=$0; \
subject=([ $SymbolForNotification "cross-mark" ] . "Netwatch Notify: " . $HostName . " down"); \
message=$Message });
:if ($HostInfo->"no-down-notification" != true) do={
$SendNotification2 ({ origin=$0; \
subject=([ $SymbolForNotification "cross-mark" ] . "Netwatch Notify: " . $HostName . " down"); \
message=$Message });
}
:set ($Metric->"notified") true;
}
}