78 lines
2.1 KiB
Nix
78 lines
2.1 KiB
Nix
{ config, pkgs, lib, ... }: let
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cfg = config.services.dibbler;
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format = pkgs.formats.ini { };
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in {
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options.services.dibbler = {
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enable = lib.mkEnableOption "dibbler, the little kiosk computer";
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package = lib.mkPackageOption pkgs "dibbler" { };
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settings = lib.mkOption {
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description = "Configuration for dibbler";
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default = { };
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type = lib.types.submodule {
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freeformType = format.type;
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};
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};
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};
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config = let
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screen = "${pkgs.screen}/bin/screen";
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in lib.mkIf cfg.enable {
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services.dibbler.settings = lib.pipe ../example-config.ini [
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builtins.readFile
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builtins.fromTOML
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(lib.mapAttrsRecursive (_: lib.mkDefault))
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];
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boot = {
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consoleLogLevel = 0;
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enableContainers = false;
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loader.grub.enable = false;
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};
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users = {
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groups.dibbler = { };
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users.dibbler = {
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group = "dibbler";
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extraGroups = [ "lp" ];
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isNormalUser = true;
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shell = (pkgs.writeShellScriptBin "login-shell" "${screen} -x dibbler") // {shellPath = "/bin/login-shell";};
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};
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};
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systemd.services.screen-daemon = {
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description = "Dibbler service screen";
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wantedBy = [ "default.target" ];
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serviceConfig = {
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ExecStartPre = "-${screen} -X -S dibbler kill";
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ExecStart = let
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config = format.generate "dibbler-config.ini" cfg.settings;
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in "${screen} -dmS dibbler -O -l ${cfg.package}/bin/dibbler --config ${config} loop";
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ExecStartPost = "${screen} -X -S dibbler width 42 80";
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User = "dibbler";
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Group = "dibbler";
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Type = "forking";
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RemainAfterExit = false;
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Restart = "always";
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RestartSec = "5s";
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SuccessExitStatus = 1;
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};
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};
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# https://github.com/NixOS/nixpkgs/issues/84105
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boot.kernelParams = [
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"console=ttyUSB0,9600"
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"console=tty1"
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];
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systemd.services."serial-getty@ttyUSB0" = {
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enable = true;
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wantedBy = [ "getty.target" ]; # to start at boot
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serviceConfig.Restart = "always"; # restart when session is closed
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};
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services.getty.autologinUser = lib.mkForce "dibbler";
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};
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}
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