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Merge pull request #92759 from mdlayher/mdl-systemd-watchdog

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nixos/systemd: add options for hardware watchdog management
This commit is contained in:
Florian Klink
2020-07-12 09:35:25 +02:00
committed by GitHub
parent 2611e96bf3 f9ea9c7299
commit 94dc0c006e
2 changed files with 74 additions and 0 deletions
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nixos/modules/system/boot/systemd.nix
+52
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@@ -818,6 +818,45 @@ in
'';
};
systemd.watchdog.device = mkOption {
type = types.path;
example = "/dev/watchdog";
description = ''
The path to a hardware watchdog device which will be managed by systemd.
If not specified, systemd will default to /dev/watchdog.
'';
};
systemd.watchdog.runtimeTime = mkOption {
type = types.str;
example = "30s";
description = ''
The amount of time which can elapse before a watchdog hardware device
will automatically reboot the system. Valid time units include "ms",
"s", "min", "h", "d", and "w".
'';
};
systemd.watchdog.rebootTime = mkOption {
type = types.str;
example = "10m";
description = ''
The amount of time which can elapse after a reboot has been triggered
before a watchdog hardware device will automatically reboot the system.
Valid time units include "ms", "s", "min", "h", "d", and "w".
'';
};
systemd.watchdog.kexecTime = mkOption {
type = types.str;
example = "10m";
description = ''
The amount of time which can elapse when kexec is being executed before
a watchdog hardware device will automatically reboot the system. This
option should only be enabled if reloadTime is also enabled. Valid
time units include "ms", "s", "min", "h", "d", and "w".
'';
};
};
@@ -889,6 +928,19 @@ in
DefaultIPAccounting=yes
''}
DefaultLimitCORE=infinity
${optionalString (config.systemd.watchdog.device != "") ''
WatchdogDevice=${config.systemd.watchdog.device}
''}
${optionalString (config.systemd.watchdog.runtimeTime != "") ''
RuntimeWatchdogSec=${config.systemd.watchdog.runtimeTime}
''}
${optionalString (config.systemd.watchdog.rebootTime != "") ''
RebootWatchdogSec=${config.systemd.watchdog.rebootTime}
''}
${optionalString (config.systemd.watchdog.kexecTime != "") ''
KExecWatchdogSec=${config.systemd.watchdog.kexecTime}
''}
${config.systemd.extraConfig}
'';