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nixpkgs/nixos/modules/services/monitoring/das_watchdog.nix
pennae ef176dcf7e nixos/*: automatically convert option descriptions
conversions were done using https://github.com/pennae/nix-doc-munge
using (probably) rev f34e145 running

    nix-doc-munge nixos/**/*.nix
    nix-doc-munge --import nixos/**/*.nix

the tool ensures that only changes that could affect the generated
manual *but don't* are committed, other changes require manual review
and are discarded.
2022-08-31 16:32:53 +02:00

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Nix

# A general watchdog for the linux operating system that should run in the
# background at all times to ensure a realtime process won't hang the machine
{ config, lib, pkgs, ... }:
with lib;
let
inherit (pkgs) das_watchdog;
in {
###### interface
options = {
services.das_watchdog.enable = mkEnableOption (lib.mdDoc "realtime watchdog");
};
###### implementation
config = mkIf config.services.das_watchdog.enable {
environment.systemPackages = [ das_watchdog ];
systemd.services.das_watchdog = {
description = "Watchdog to ensure a realtime process won't hang the machine";
after = [ "multi-user.target" "sound.target" ];
wantedBy = [ "multi-user.target" ];
serviceConfig = {
User = "root";
Type = "simple";
ExecStart = "${das_watchdog}/bin/das_watchdog";
RemainAfterExit = true;
};
};
};
}