Add configuration for kubernetes host kube01

hosts/kube01/default.nix

@@ -0,0 +1,60 @@
+{ inputs, outputs, config, lib, pkgs, ... }:
+
+{
+  imports =
+    [
+      ../../modules/nix.nix
+      ../../modules/network-server.nix
+      ../../modules/locale.nix
+      ../../modules/server-cli.nix
+      ../../modules/sshd.nix
+      ../../modules/k3s.nix
+      # Include the results of the hardware scan.
+      ./hardware-configuration.nix
+    ];
+
+  boot = {
+    loader = {
+      systemd-boot = {
+        enable = true;
+      };
+      efi.canTouchEfiVariables = true;
+    };
+    tmp.useTmpfs = true;
+  };
+
+  networking.hostName = "kube01"; # Define your hostname.
+
+  users = {
+    users = {
+      julius = {
+        initialPassword = "password";
+        isNormalUser = true;
+        uid = 1000;
+        extraGroups = [ "wheel" "julius" ];
+        openssh.authorizedKeys.keys = [
+          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOiZXFM8XFkReb9HuGcY5rtPXsGuZ2eDnBBpI0kcHa6c julius@julius-framework"
+        ];
+      };
+    };
+    groups = {
+      julius = {
+        gid = 1000;
+      };
+    };
+  };
+
+  # This option defines the first version of NixOS you have installed on this particular machine,
+  # and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
+  # Most users should NEVER change this value after the initial install, for any reason,
+  # even if you've upgraded your system to a new NixOS release.
+  # This value does NOT affect the Nixpkgs version your packages and OS are pulled from,
+  # so changing it will NOT upgrade your system - see https://nixos.org/manual/nixos/stable/#sec-upgrading for how
+  # to actually do that.
+  # This value being lower than the current NixOS release does NOT mean your system is
+  # out of date, out of support, or vulnerable.
+  # Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
+  # and migrated your data accordingly.
+  # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
+  system.stateVersion = "25.05"; # Did you read the comment?
+}