liminix

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default.nix (831B)

      1 ## Watchdog
      2 ##
      3 ## Enable hardware watchdog (for devices that support one) and
      4 ## feed it by checking the health of specified critical services.
      5 ## If the watchdog feeder stops, the device will reboot.
      6 
      7 {
      8   lib,
      9   pkgs,
     10   config,
     11   ...
     12 }:
     13 let
     14   inherit (lib) mkOption types;
     15   inherit (pkgs) liminix;
     16 in
     17 {
     18   options = {
     19     system.service.watchdog = mkOption {
     20       type = liminix.lib.types.serviceDefn;
     21     };
     22   };
     23   config.system.service.watchdog = config.system.callService ./watchdog.nix {
     24     watched = mkOption {
     25       description = "services to watch";
     26       type = types.listOf liminix.lib.types.service;
     27     };
     28     headStart = mkOption {
     29       description = "delay in seconds before watchdog starts checking service health";
     30       default = 60;
     31       type = types.int;
     32     };
     33   };
     34   config.kernel.config.WATCHDOG = "y";
     35 }