From e640bd869033df594377a090b450efd35ae1b845 Mon Sep 17 00:00:00 2001
From: Gregor Kleen <gkleen@yggdrasil.li>
Date: Sun, 19 Apr 2020 16:41:14 +0200
Subject: ullr

---
 ullr.nix    | 82 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 ullr/hw.nix | 19 ++++++++++++++
 2 files changed, 101 insertions(+)
 create mode 100644 ullr.nix
 create mode 100644 ullr/hw.nix

diff --git a/ullr.nix b/ullr.nix
new file mode 100644
index 00000000..87766899
--- /dev/null
+++ b/ullr.nix
@@ -0,0 +1,82 @@
+{ config, pkgs, ... }:
+
+{
+  imports =
+    [ # Include the results of the hardware scan.
+      ./ullr/hw.nix
+      ./nixpkgs.nix
+      ./users.nix
+      ./utils/nix/module.nix
+    ];
+
+  # Use the GRUB 2 boot loader.
+  boot.loader.grub.enable = true;
+  boot.loader.grub.version = 2;
+  boot.loader.grub.device = "/dev/sda";
+
+  # The global useDHCP flag is deprecated, therefore explicitly set to false here.
+  # Per-interface useDHCP will be mandatory in the future, so this generated config
+  # replicates the default behaviour.
+  networking = {
+    domain = "yggdrasil.li";
+    hostname = "ullr";
+
+    useDHCP = false;
+    enableIPv6 = true;
+
+    firewall = {
+      enable = true;
+      allowPing = true;
+      allowedTCPPorts = [ 22 # ssh
+                        ];
+      allowedUDPPortRanges = [ { from = 60000; to = 61000; } # mosh
+                             ];
+    };
+
+    interfaces.ens3 = {
+      useDHCP = true;
+      ipv6.addresses = [
+        { address = "2a03:4000:15:93d::";
+          prefixLength = 64;
+        }
+      ];
+    };
+  };
+
+  # Set your time zone.
+  time.timeZone = "Europe/Berlin";
+
+  environment.systemPackages = with pkgs; [
+    git mosh rsync tmux zsh
+    rebuild-system
+  ];
+
+  users.extraUsers.root = let
+    template = (import users/gkleen.nix);
+    in {
+        inherit (template) shell;
+        openssh.authorizedKeys.keyFiles = template.openssh.authorizedKeys.keyFiles;
+      };
+
+  # Enable the OpenSSH daemon.
+  services.openssh = {
+    enable = true;
+    passwordAuthentication = false;
+    challengeResponseAuthentication = false;
+    extraConfig = ''
+      AllowGroups ssh
+    '';
+  };
+  users.groups."ssh" = {
+    members = ["root"];
+  };
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "20.09";
+}
+
diff --git a/ullr/hw.nix b/ullr/hw.nix
new file mode 100644
index 00000000..a1f8edce
--- /dev/null
+++ b/ullr/hw.nix
@@ -0,0 +1,19 @@
+{ config, lib, pkgs, ... }:
+
+{
+  imports =
+    [ <nixpkgs/nixos/modules/profiles/qemu-guest.nix>
+    ];
+
+  boot.initrd.availableKernelModules = [ "ata_piix" "uhci_hcd" "virtio_pci" "sd_mod" "sr_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/sda1";
+      fsType = "btrfs";
+    };
+
+  swapDevices = [ ];
+}
-- 
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