update test system config

systems/default.nix

@@ -1,7 +1,7 @@
 { flake }:
 let
   nixpkgs = flake.inputs.nixpkgs;
-
+  
   # utility function to create a new nixos configuration
   # call like `mkSystem "x86_64-linux" "<hostname>.eh22.intern"`
   mkSystem =
@@ -13,6 +13,7 @@ let
         flake.inputs.home-manager.nixosModules.home-manager
         flake.inputs.sops-nix.nixosModules.default
         flake.inputs.lix.nixosModules.lixFromNixpkgs
+        flake.inputs.disko.nixosModules.default
 
         ../modules/base_system.nix
         ../modules/user_account.nix
@@ -36,6 +37,9 @@ let
     };
 in
 {
-  # exposed hosts at myroot
+  # prod hosts
+
+  # misc hosts
   "test.eh22.intern" = mkSystem "x86_64-linux" "test.eh22.intern";
+  "installer" = mkSystem "x86_64-linux" "installer";
 }

systems/installer.nix

@@ -0,0 +1,32 @@
+
+{
+  config,
+  modulesPath,
+  lib,
+  pkgs,
+  ...
+}:
+{
+  imports = [
+    (modulesPath + "/installer/cd-dvd/installation-cd-minimal.nix")
+  ];
+
+  networking.hostName = lib.mkForce "eh22-nixos-installer";
+  networking.wireless.enable = false;
+  system.installer.channel.enable = true;
+  environment.systemPackages = with pkgs; [
+    disko
+  ];
+
+  # configure our own user account in the installer
+  services.getty.autologinUser = lib.mkForce "noc";
+
+  # conflict resolutions
+  services.openssh.settings.PermitRootLogin = lib.mkForce "no";
+  boot.initrd.systemd.enable = lib.mkForce false;
+  boot.loader.grub.enable = lib.mkForce false;
+
+  # this is only okay because the installer does not have any persistence so no data can be in an old/incompatible format
+  system.stateVersion = config.system.nixos.release;
+  home-manager.users.noc.home.stateVersion = config.system.stateVersion;
+}

systems/test.eh22.intern.nix

@@ -4,45 +4,8 @@
 {
   imports = [ ];
 
-  # boot config
-  fileSystems = {
-    "/boot" = {
-      device = "/dev/disk/by-uuid/94A7-6995";
-      fsType = "vfat";
-      options = [
-        "fmask=0077"
-        "dmask=0077"
-      ];
-    };
-    "/" = {
-      device = "/dev/disk/by-uuid/4e0b7ea5-8c74-478f-a4e3-ddc5691e4065";
-      fsType = "ext4";
-    };
-    "/srv/data/k8s" = {
-      device = "10.0.10.14:/srv/data/k8s";
-      fsType = "nfs";
-      options = [
-        "defaults"
-        "_netdev"
-      ];
-    };
-  };
-
   # networking config
-  networking.useDHCP = false;
-  systemd.network = {
-    enable = true;
-    networks.enp1s0 = {
-      matchConfig = {
-        Type = "ether";
-        MACAddress = "52:54:00:e6:1f:51";
-      };
-      networkConfig = {
-        IPv6AcceptRA = false;
-      };
-      DHCP = "yes";
-    };
-  };
+  networking.useDHCP = true;
 
   # DO NOT CHANGE
   # this defines the first version of NixOS that was installed on the machine so that programs with non-migratable data files are kept compatible