system/modules/darwin/kresd.nix


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{ config, lib, pkgs, ... }:

with lib;

let
  cfg = config.services.kresd;
  package = pkgs.knot-resolver;

  configFile = pkgs.writeText "kresd.conf" cfg.extraConfig;
in
{
  options = {
    services.kresd.enable = mkOption {
      type = types.bool;
      default = false;
      description = "Whether to enable knot-resolver daemon.";
    };

    services.kresd.extraConfig = mkOption {
      type = types.lines;
      default = "";
      description = ''
        Extra configuration to be added to the generated configuration file.
      '';
    };
  };

  config = mkIf cfg.enable {
    launchd.daemons.kresd = {
      command = "${package}/bin/kresd -c ${configFile}";

      serviceConfig = {
        ProcessType = "Interactive";
        # Sockets = {
        #   Listeners = {
        #     SockServiceName = "dns";
        #     SockFamily = "IPv4";
        #   };
        # };
      };
    };

    environment.systemPackages = [ package ];
  };
}