mirror of
https://git.pvv.ntnu.no/Drift/pvv-nixos-config.git
synced 2026-03-18 05:37:34 +01:00
drumknotty WIP
This commit is contained in:
Vegard Bieker Matthey
255
modules/drumknotty.nix
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255
modules/drumknotty.nix
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@@ -0,0 +1,255 @@
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{
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config,
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pkgs,
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lib,
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...
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}:
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let
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cfg = config.services.drumknotty;
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format = pkgs.formats.toml { };
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in
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{
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options.services.drumknotty = {
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enable = lib.mkEnableOption "DrumknoTTY";
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dibblerPackage = lib.mkPackageOption pkgs "dibbler" { };
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worblehatPackage = lib.mkPackageOption pkgs "worblehat" { };
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screenPackage = lib.mkPackageOption pkgs "screen" { };
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screenSessionName = lib.mkOption {
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type = lib.types.str;
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default = "drumknotty";
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example = "myscreensessionname";
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description = ''
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Sets the screen session name.
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'';
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};
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createLocalDatabase = lib.mkEnableOption "" // {
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description = ''
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Whether to set up a local postgres database automatically.
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::: {.note}
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You must set up postgres manually before enabling this option.
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:::
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'';
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};
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kioskMode = lib.mkEnableOption "" // {
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description = ''
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Whether to let dibbler take over the entire machine.
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This will restrict the machine to a single TTY and make the program unquittable.
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You can still get access to PTYs via SSH and similar, if enabled.
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'';
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};
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limitScreenHeight = lib.mkOption {
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type = with lib.types; nullOr ints.unsigned;
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default = null;
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example = 42;
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description = ''
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If set, limits the height of the screen dibbler uses to the given number of lines.
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'';
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};
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limitScreenWidth = lib.mkOption {
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type = with lib.types; nullOr ints.unsigned;
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default = null;
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example = 80;
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description = ''
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If set, limits the width of the screen dibbler uses to the given number of columns.
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'';
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};
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dibblerSettings = 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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worblehatSettings = lib.mkOption {
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description = "Configuration for worblehat";
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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 = lib.mkIf cfg.enable (
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{
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environment.systemPackages = [
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cfg.dibblerPackage
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cfg.worblehatPackage
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];
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environment.etc."dibbler/dibbler.toml".source = format.generate "dibbler.toml" cfg.dibblerSettings;
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environment.etc."worblehat/config.toml".source =
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format.generate "worblehat-config.toml" cfg.worblehatSettings;
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users = {
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users.drumknotty = {
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group = "drumknotty";
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isNormalUser = true;
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};
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groups.drumknotty = { };
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};
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services.dibbler.settings.database = lib.mkIf cfg.createLocalDatabase {
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type = "postgresql";
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postgresql.host = "/run/postgresql";
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};
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services.postgresql = lib.mkIf cfg.createLocalDatabase {
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ensureDatabases = [
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"dibbler"
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"worblehat"
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];
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ensureUsers = [
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{
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name = "drumknotty";
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ensureDBOwnership = true;
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ensureClauses.login = true;
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}
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];
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};
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systemd.services.dibbler-setup-database = lib.mkIf cfg.createLocalDatabase {
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description = "Dibbler database setup";
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wantedBy = [ "default.target" ];
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after = [ "postgresql.service" ];
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unitConfig = {
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ConditionPathExists = "!/var/lib/dibbler/.db-setup-done";
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};
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serviceConfig = {
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Type = "oneshot";
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ExecStart = "${lib.getExe cfg.dibblerPackage} --config /etc/dibbler/dibbler.toml create-db";
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ExecStartPost = "${lib.getExe' pkgs.coreutils "touch"} /var/lib/dibbler/.db-setup-done";
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StateDirectory = "dibbler";
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User = "drumknotty";
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Group = "drumknotty";
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};
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};
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systemd.services.worblehat-setup-database = lib.mkIf cfg.createLocalDatabase {
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description = "Worblehat database setup";
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wantedBy = [ "default.target" ];
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after = [ "postgresql.service" ];
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unitConfig = {
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ConditionPathExists = "!/var/lib/worblehat/.db-setup-done";
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};
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serviceConfig = {
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Type = "oneshot";
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ExecStart = "${lib.getExe cfg.worblehatPackage} --config /etc/worblehat/config.toml create-db";
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ExecStartPost = "${lib.getExe' pkgs.coreutils "touch"} /var/lib/worblehat/.db-setup-done";
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StateDirectory = "worblehat";
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User = "drumknotty";
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Group = "drumknotty";
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};
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};
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}
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(
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lib.mkIf cfg.kioskMode {
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boot.kernelParams = [
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"console=tty1"
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];
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users.users.drumknotty = {
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extraGroups = [ "lp" ];
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shell =
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(pkgs.writeShellScriptBin "login-shell" "${lib.getExe' cfg.screenPackage "screen"} -x ${cfg.screenSessionName}")
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// {
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shellPath = "/bin/login-shell";
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};
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};
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services.drumknotty.settings.general = {
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quit_allowed = false;
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stop_allowed = false;
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};
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systemd.services.drumknotty-screen-session = {
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description = "Drumknotty Screen Session";
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wantedBy = [
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"default.target"
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];
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after =
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if cfg.createLocalDatabase then
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[
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"postgresql.service"
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"dibbler-setup-database.service"
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"worblehat-setup-database.service"
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]
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else
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[
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"network.target"
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];
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serviceConfig =
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let
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dibblerArgs = lib.cli.toCommandLineShellGNU { } {
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config = "/etc/dibbler/dibbler.toml";
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};
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worblehatArgs = lib.cli.toCommandLineShellGNU { } {
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config = "/etc/worblehat/config.toml";
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};
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in
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{
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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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User = "drumknotty";
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Group = "drumknotty";
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ExecStartPre = "-${lib.getExe' cfg.screenPackage "screen"} -X -S ${cfg.screenSessionName} kill";
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ExecStart =
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let
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screenArgs = lib.escapeShellArgs [
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# -dm creates the screen in detached mode without accessing it
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"-dm"
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# Session name
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"-S"
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"drumknotty"
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# Window name
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"-t"
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"dibbler"
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# Set optimal output mode instead of VT100 emulation
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"-O"
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# Enable login mode, updates utmp entries
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"-l"
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];
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in
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"${lib.getExe' cfg.screenPackage "screen"} ${screenArgs} ${lib.getExe cfg.dibblerPackage} ${dibblerArgs} loop";
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ExecStartPost =
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"${lib.getExe' cfg.screenPackage "screen"} -X -S ${cfg.screenSessionName} -t worblehat ${lib.getExe cfg.worblehatPackage} ${worblehatArgs} cli"
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++ lib.optionals (cfg.limitScreenWidth != null) [
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"${lib.getExe' cfg.screenPackage "screen"} -X -S ${cfg.screenSessionName} width ${toString cfg.limitScreenWidth}"
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]
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++ lib.optionals (cfg.limitScreenHeight != null) [
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"${lib.getExe' cfg.screenPackage "screen"} -X -S ${cfg.screenSessionName} height ${toString cfg.limitScreenHeight}"
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];
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};
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};
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services.getty.autologinUser = "drumknotty";
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}
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)
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);
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}
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@@ -1,15 +0,0 @@
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{
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config,
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lib,
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pkgs,
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unstablePkgs,
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values,
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...
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}:
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let
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dibbler = config.services.dibbler;
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worblehat = config.services.worblehat;
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machine = config.networking.hostName;
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in
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{
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}
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