Testing a 'minimal' image for Linode

flake.nix

@@ -58,7 +58,7 @@
     imageConfigurations = {
       nixos-rpi4-img = libx.mkImage { hostname = "nixos-rpi4-img";  platform = "aarch64-linux"; format = "sd-aarch64"; };
       nixos-iso-console = libx.mkImage { hostname = "nixos-iso-console"; format = "iso"; };
-      nixos-linode-img = libx.mkImage { hostname = "nixos-linode-img"; format = "linode"; };
+      nixos-linode-img = libx.mkMinImage { hostname = "nixos-linode-img"; format = "linode"; };
     };
 
     # Devshell for bootstrapping; acessible via 'nix develop'

lib/default.nix

@@ -58,6 +58,32 @@
     ];
   };
 
+  # Combines mkHost and mkHome for image building
+  mkMinImage = {
+    hostname  , 
+    username  ? "albert",
+    desktop   ? null, 
+    platform  ? "x86_64-linux",
+    gpu       ? null, 
+    theme     ? "default",
+    format
+  }: 
+  inputs.nixos-generators.nixosGenerate {
+    specialArgs = { inherit inputs outputs desktop hostname username stateVersion hmStateVersion gpu platform theme format; };
+    format = format;
+    system = platform;
+
+    modules = [
+      ../nixos/minimal.nix
+      inputs.sops-nix.nixosModules.sops
+      inputs.lanzaboote.nixosModules.lanzaboote
+      # inputs.home-manager.nixosModules.home-manager {
+      #   home-manager.extraSpecialArgs  = { inherit inputs outputs desktop hostname username hmStateVersion stateVersion gpu platform theme format; };
+      #   home-manager.users."${username}" = import ../home-manager;
+      # }
+    ];
+  };
+
   forAllSystems = inputs.nixpkgs.lib.genAttrs [
     "aarch64-linux"
     "x86_64-linux"

nixos/minimal.nix

@@ -0,0 +1,52 @@
+{ lib, config, pkgs, hostname, stateVersion, username, desktop, gpu, inputs, platform, theme, ... }: {
+  imports = [ 
+      # Services
+      ./common/services/openssh.nix
+      ./common/services/fail2ban.nix
+
+      # NixOS Modules
+      ./common/modules/networking.nix  # Initial Networking configs
+      ./common/modules/nixos.nix       # NixOS related items
+
+      ./users/${username}
+      ./hosts/${hostname}
+    ] ++ lib.optional (builtins.isString desktop) ./common/desktops/${desktop};
+
+  # List packages installed in system profile
+  environment.systemPackages = with pkgs; [
+    sbctl
+    wget
+    killall
+    curl
+    rsync
+    git
+    duf
+    ncdu
+    du-dust
+    btop
+    iftop
+    nload
+    iotop
+    sops
+    gnupg
+    cryptsetup
+    parted
+    screen
+  ];
+
+  # Select internationalisation properties.
+  i18n.defaultLocale = "en_US.UTF-8";
+  i18n.extraLocaleSettings = {
+    LC_ADDRESS = "en_US.UTF-8";
+    LC_IDENTIFICATION = "en_US.UTF-8";
+    LC_MEASUREMENT = "en_US.UTF-8";
+    LC_MONETARY = "en_US.UTF-8";
+    LC_NAME = "en_US.UTF-8";
+    LC_NUMERIC = "en_US.UTF-8";
+    LC_PAPER = "en_US.UTF-8";
+    LC_TELEPHONE = "en_US.UTF-8";
+    LC_TIME = "en_US.UTF-8";
+  };
+
+  system.stateVersion = stateVersion;
+}