110 lines
3.4 KiB
Nix
110 lines
3.4 KiB
Nix
{ lib, pkgs, config, ... }:
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with builtins; with lib;
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{
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options.wsl = with types;
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let
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coercedToStr = coercedTo (oneOf [ bool path int ]) (toString) str;
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in
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{
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enable = mkEnableOption "support for running NixOS as a WSL distribution";
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automountPath = mkOption {
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type = str;
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default = "/mnt";
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description = "The path where windows drives are mounted (e.g. /mnt/c)";
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};
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automountOptions = mkOption {
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type = str;
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default = "metadata,uid=1000,gid=100";
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description = "Options to use when mounting windows drives";
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};
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defaultUser = mkOption {
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type = str;
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default = "nixos";
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description = "The name of the default user";
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};
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startMenuLaunchers = mkEnableOption "shortcuts for GUI applications in the windows start menu";
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wslConf = mkOption {
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type = attrsOf (attrsOf coercedToStr);
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description = "Entries that are added to /etc/wsl.conf";
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};
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};
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config =
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let
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cfg = config.wsl;
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syschdemd = import ../syschdemd.nix { inherit lib pkgs config; defaultUser = cfg.defaultUser; };
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in
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mkIf cfg.enable {
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wsl.wslConf = {
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automount = {
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enabled = true;
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mountFsTab = true;
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root = "${cfg.automountPath}/";
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options = cfg.automountOptions;
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};
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};
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# WSL is closer to a container than anything else
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boot.isContainer = true;
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environment.noXlibs = lib.mkForce false; # override xlibs not being installed (due to isContainer) to enable the use of GUI apps
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environment = {
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# Include Windows %PATH% in Linux $PATH.
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extraInit = ''PATH="$PATH:$WSLPATH"'';
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etc = {
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"wsl.conf".text = generators.toINI { } cfg.wslConf;
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# DNS settings are managed by WSL
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hosts.enable = false;
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"resolv.conf".enable = false;
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};
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};
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networking.dhcpcd.enable = false;
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users.users.${cfg.defaultUser} = {
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isNormalUser = true;
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extraGroups = [ "wheel" ]; # Allow the default user to use sudo
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};
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users.users.root = {
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shell = "${syschdemd}/bin/syschdemd";
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# Otherwise WSL fails to login as root with "initgroups failed 5"
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extraGroups = [ "root" ];
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};
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security.sudo = {
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extraConfig = ''
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Defaults env_keep+=INSIDE_NAMESPACE
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'';
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wheelNeedsPassword = mkDefault false; # The default user will not have a password by default
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};
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system.activationScripts.copy-launchers = mkIf cfg.startMenuLaunchers (
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stringAfter [ ] ''
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for x in applications icons; do
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echo "Copying /usr/share/$x"
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mkdir -p /usr/share/$x
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${pkgs.rsync}/bin/rsync -ar --delete $systemConfig/sw/share/$x/. /usr/share/$x
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done
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''
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);
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# Disable systemd units that don't make sense on WSL
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systemd.services."serial-getty@ttyS0".enable = false;
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systemd.services."serial-getty@hvc0".enable = false;
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systemd.services."getty@tty1".enable = false;
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systemd.services."autovt@".enable = false;
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systemd.services.firewall.enable = false;
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systemd.services.systemd-resolved.enable = false;
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systemd.services.systemd-udevd.enable = false;
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# Don't allow emergency mode, because we don't have a console.
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systemd.enableEmergencyMode = false;
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};
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}
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