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netwatch-notify: properly handle services (http-get & tcp-conn)

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Christian Hesse 2022-07-05 13:57:11 +02:00
parent f50d155500
commit e8f5f9217c
3 changed files with 21 additions and 19 deletions
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4
doc/netwatch-notify.d/notification-01-down.svg
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@ -159,10 +159,10 @@
</tspan><tspan
x="180"
y="40.85"
id="tspan2281">Host example.com (93.184.216.34) is down since
id="tspan2281">The host example.com (93.184.216.34) is down
</tspan><tspan
x="180"
y="55.85"
id="tspan2283">jun/08/2021 06:55:03.</tspan></text>
id="tspan2283">since jun/08/2021 06:55:03.</tspan></text>
</g>
</svg>

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4
doc/netwatch-notify.d/notification-02-up.svg
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@ -159,11 +159,11 @@
</tspan><tspan
x="180"
y="40.85"
id="tspan2246">Host example.com (93.184.216.34) is up since
id="tspan2246">The host example.com (93.184.216.34) is up
</tspan><tspan
x="180"
y="55.85"
id="tspan2248">jun/08/2021 07:01:00.
id="tspan2248">since jun/08/2021 07:01:00.
</tspan><tspan
x="180"
y="70.85"

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32
netwatch-notify
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@ -22,8 +22,9 @@
:local NetwatchNotifyHook do={
:local Name [ :tostr $1 ];
:local State [ :tostr $2 ];
:local Hook [ :tostr $3 ];
:local Type [ :tostr $2 ];
:local State [ :tostr $3 ];
:local Hook [ :tostr $4 ];
:global LogPrintExit2;
:global ValidateSyntax;
@ -32,15 +33,15 @@
:do {
[ :parse $Hook ];
} on-error={
$LogPrintExit2 warning $0 ("The " . $State . "-hook for host " . $Name . " failed to run.") false;
$LogPrintExit2 warning $0 ("The " . $State . "-hook for " . $Type . " " . $Name . " failed to run.") false;
:return ("The hook failed to run.");
}
} else={
$LogPrintExit2 warning $0 ("The " . $State . "-hook for host " . $Name . " failed syntax validation.") false;
$LogPrintExit2 warning $0 ("The " . $State . "-hook for " . $Type . " " . $Name . " failed syntax validation.") false;
:return ("The hook failed syntax validation.");
}
$LogPrintExit2 info $0 ("Ran hook on host " . $Name . " " . $State . ": " . $Hook) false;
$LogPrintExit2 info $0 ("Ran hook on " . $Type . " " . $Name . " " . $State . ": " . $Hook) false;
:return ("Ran hook:\n" . $Hook);
}
@ -56,6 +57,7 @@ $ScriptLock $0;
:foreach Host in=[ /tool/netwatch/find where comment~"notify" !disabled ] do={
:local HostVal [ /tool/netwatch/get $Host ];
:local Type [ $IfThenElse ($HostVal->"type" ~ "^(http-get|tcp-conn)\$") "service" "host" ];
:local HostInfo [ $ParseKeyValueStore ($HostVal->"comment") ];
:if ($HostInfo->"notify" = true && $HostInfo->"disabled" != true) do={
@ -72,7 +74,7 @@ $ScriptLock $0;
:local Resolve [ :resolve ($HostInfo->"resolve") ];
:if ($Resolve != $HostVal->"host") do={
$LogPrintExit2 info $0 ("Name '" . $HostInfo->"resolve" . [ $IfThenElse ($HostInfo->"resolve" != \
$HostInfo->"name") ("' for host '" . $HostInfo->"name") "" ] . \
$HostInfo->"name") ("' for " . $Type . " '" . $HostInfo->"name") "" ] . \
"' resolves to different address " . $Resolve . ", updating.") false;
/tool/netwatch/set host=$Resolve $Host;
:set ($Metric->"resolve-failed") false;
@ -80,7 +82,7 @@ $ScriptLock $0;
} on-error={
:if ($Metric->"resolve-failed" != true) do={
$LogPrintExit2 warning $0 ("Resolving name '" . $HostInfo->"resolve" . [ $IfThenElse ($HostInfo->"resolve" != \
$HostInfo->"name") ("' for host '" . $HostInfo->"name") "" ] . "' failed.") false;
$HostInfo->"name") ("' for " . $Type . " '" . $HostInfo->"name") "" ] . "' failed.") false;
:set ($Metric->"resolve-failed") true;
}
}
@ -90,14 +92,14 @@ $ScriptLock $0;
:if ($HostVal->"status" = "up") do={
:local Count ($Metric->"count");
:if ($Count > 0) do={
$LogPrintExit2 info $0 ("Host " . $Name . " (" . $HostVal->"host" . ") is up.") false;
$LogPrintExit2 info $0 ("The " . $Type . " " . $Name . " (" . $HostVal->"host" . ") is up.") false;
:set ($Metric->"count") 0;
}
:if ($Metric->"notified" = true) do={
:local Message ("Host " . $Name . " (" . $HostVal->"host" . ") is up since " . $HostVal->"since" . ".\n" . \
:local Message ("The " . $Type . " " . $Name . " (" . $HostVal->"host" . ") is up since " . $HostVal->"since" . ".\n" . \
"It was down for " . $Count . " checks since " . ($Metric->"since") . ".");
:if ([ :typeof ($HostInfo->"up-hook") ] = "str") do={
:set Message ($Message . "\n\n" . [ $NetwatchNotifyHook $Name "up" ($HostInfo->"up-hook") ]);
:set Message ($Message . "\n\n" . [ $NetwatchNotifyHook $Name $Type "up" ($HostInfo->"up-hook") ]);
}
$SendNotification2 ({ origin=$0; \
subject=([ $SymbolForNotification "white-heavy-check-mark" ] . "Netwatch Notify: " . $Name . " up"); \
@ -125,16 +127,16 @@ $ScriptLock $0;
}
}
$LogPrintExit2 [ $IfThenElse ($HostInfo->"no-down-notification" != true) info debug ] $0 \
("Host " . $Name . " (" . $HostVal->"host" . ") is down for " . $Metric->"count" . " checks, " . \
("The " . $Type . " " . $Name . " (" . $HostVal->"host" . ") is down for " . $Metric->"count" . " checks, " . \
[ $IfThenElse ($ParentNotified = false) [ $IfThenElse ($Metric->"notified" = true) ("already notified.") \
($Count - $Metric->"count" . " to go.") ] ("parent host " . $Parent . " is down.") ]) false;
($Count - $Metric->"count" . " to go.") ] ("parent " . $Type . " " . $Parent . " is down.") ]) false;
:if ((($Count * 2) - ($Metric->"count" * 3)) / 2 = 0 && [ :typeof ($HostInfo->"pre-down-hook") ] = "str") do={
$NetwatchNotifyHook $Name "pre-down" ($HostInfo->"pre-down-hook");
$NetwatchNotifyHook $Name $Type "pre-down" ($HostInfo->"pre-down-hook");
}
:if ($ParentNotified = false && $Metric->"count" >= $Count && $Metric->"notified" != true) do={
:local Message ("Host " . $Name . " (" . $HostVal->"host" . ") is down since " . $HostVal->"since" . ".");
:local Message ("The " . $Type . " " . $Name . " (" . $HostVal->"host" . ") is down since " . $HostVal->"since" . ".");
:if ([ :typeof ($HostInfo->"down-hook") ] = "str") do={
:set Message ($Message . "\n\n" . [ $NetwatchNotifyHook $Name "down" ($HostInfo->"down-hook") ]);
:set Message ($Message . "\n\n" . [ $NetwatchNotifyHook $Name $Type "down" ($HostInfo->"down-hook") ]);
}
:if ($HostInfo->"no-down-notification" != true) do={
$SendNotification2 ({ origin=$0; \