add a module for docker-desktop support

.envrc

@@ -0,0 +1,7 @@
+use_flake() {
+    watch_file flake.nix
+    watch_file flake.lock
+    eval "$(nix print-dev-env)"
+}
+
+use flake

configuration.nix

@@ -12,6 +12,7 @@ in
     "${modulesPath}/profiles/minimal.nix"
 
     build-tarball
+    docker-desktop
     wsl-distro
   ];
 
@@ -20,6 +21,9 @@ in
     automountPath = "/mnt";
     defaultUser = "nixos";
     startMenuLaunchers = true;
+
+    # Enable integration with Docker Desktop (needs to be installed)
+    # docker.enable = true;
   };
 
   # Enable nix-flakes by default

flake.nix

@@ -16,6 +16,7 @@
       nixosModules = {
         build-tarball = import ./modules/build-tarball.nix;
         wsl-distro = import ./modules/wsl-distro.nix;
+        docker-desktop = import ./modules/docker-desktop.nix;
       };
 
       nixosConfigurations.mysystem = nixpkgs.lib.nixosSystem {

modules/docker-desktop.nix

@@ -0,0 +1,33 @@
+{ config, lib, pkgs, ... }:
+with builtins; with lib; {
+
+  options.wsl.docker = with types; {
+    enable = mkEnableOption "Docker Desktop integration";
+  };
+
+  config =
+    let
+      cfg = config.wsl.docker;
+    in
+    mkIf (config.wsl.enable && cfg.enable) {
+
+      environment.systemPackages = with pkgs; [
+        docker
+        docker-compose
+      ];
+
+      systemd.services.docker-desktop-proxy = {
+        description = "Docker Desktop proxy";
+        script = ''
+          ${config.wsl.automountPath}/wsl/docker-desktop/docker-desktop-proxy -docker-desktop-root ${config.wsl.automountPath}/wsl/docker-desktop
+        '';
+        wantedBy = [ "multi-user.target" ];
+      };
+
+      users.groups.docker.members = [
+        config.wsl.defaultUser
+      ];
+
+    };
+
+}