feat: add dk1-iso

.sops.yaml

@@ -1,7 +1,9 @@
 keys:
   - &sv1 age1zr5m64rzl8r5pk5cnwcfycc8ze09lx4xqa6s0cpkf24gwwxxpy2sltfsug
+  - &dk1-iso age14x7k4stulqyp849x3uksprk2w3vjyn6pjlvgrp6up3tem6g6xucqvms68t
 creation_rules:
   - path_regex: library/secrets/.*.yaml
     key_groups:
       - age:
         - *sv1
+        - *dk1-iso

applications/default.nix

@@ -1,2 +1,3 @@
 {pkgs}: {
+  write-iso = pkgs.callPackage ./write-iso.nix {};
 }

applications/write-iso.nix

@@ -0,0 +1,4 @@
+{iso-writer}: {
+  type = "app";
+  program = "${iso-writer}/bin/iso-writer";
+}

configurations/default.nix

@@ -1,4 +1,5 @@
 {lib}: {
   sv1 = lib.callFragment ./sv1.nix {};
   dk1 = lib.callFragment ./dk1.nix {};
+  dk1-iso = lib.callFragment ./dk1-iso.nix {};
 }

configurations/dk1-iso.nix

@@ -0,0 +1,9 @@
+{
+  nixosSystem,
+  nixosSystems,
+  nixosModules,
+}:
+nixosSystem {
+  system = nixosSystems.x86_64-linux;
+  modules = [nixosModules.dk1-iso];
+}

library/secrets/default.nix

@@ -1,3 +1,4 @@
 {
   sb1 = ./sb1.yaml;
+  network-manager = ./network-manager.yaml;
 }

library/secrets/network-manager.yaml

@@ -0,0 +1,31 @@
+home_ssid: ENC[AES256_GCM,data:KB/wa+XEw7KGD3sO,iv:OavELC88DUOzPkj5dQsZbpolo4k5uKPVfEmIt6nWP/0=,tag:4towJ8hav0Vj2DpFpLUF5A==,type:str]
+home_psk: ENC[AES256_GCM,data:GA7ZED/cFaA=,iv:0EU06LM0MfTAmmafasPKq0xxl7w2h1Y45tBi4NVDvmA=,tag:cMGUOVlUANybdkcp7Cmd5w==,type:str]
+sops:
+    kms: []
+    gcp_kms: []
+    azure_kv: []
+    hc_vault: []
+    age:
+        - recipient: age1zr5m64rzl8r5pk5cnwcfycc8ze09lx4xqa6s0cpkf24gwwxxpy2sltfsug
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSByRDNtR1huOVJ6clNycERp
+            M0R0SnM2RUVCVXFFWWUrdnZzVHVIS1luZkEwCkUrVHpjTWlPdmZJRXQ2M2xGdzBn
+            OTVlcDRFdzZsUlRFVE1Vd1VFKy81R00KLS0tIFRSNHowK3E0UGZlYzk1RW5HR2tV
+            bWNYUG16QTZ1b3RHWThPcm5vdUpGenMKs7xWFe70u3ochn51t7uGITG/oHRDC4v5
+            LJIl5LBauwkJO3ddZqPnc57ci2lXukM8Z4EKi3QwYiJ6dxxtizTAng==
+            -----END AGE ENCRYPTED FILE-----
+        - recipient: age14x7k4stulqyp849x3uksprk2w3vjyn6pjlvgrp6up3tem6g6xucqvms68t
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBHbG9VZDBvM3k2Z0pFMTNO
+            ZHQ2UUtMWnJhVGY2M256L2lEbVpLUFM4R0V3ClhCNUV1b0ZEQkhaRklMenpyRzJq
+            Ym95Y21BUHpacXhFcnhwY2FwMUMzQ2MKLS0tIDRuY2FnbVEzQ295R3JqUnk0NjVC
+            enEyWkRVT014Vk1FTktmVU5kbjVaUTAKJKIIMjBDLJxXv6y9nIzirH5vaqkQyZ6a
+            pF45ayqxXOAdonrnn0hbyxW8NcKp0Jjy0ehTd6AfAnNCrxPomPbflw==
+            -----END AGE ENCRYPTED FILE-----
+    lastmodified: "2025-04-26T11:02:52Z"
+    mac: ENC[AES256_GCM,data:kC+tWF+5JVFJigJHKf5RxDggOQPHbSKvllWxWCrL0DvL/FS1a0W0Xi35d473DfxkUUUKSHDguan3V0YlL64103sXlMU3hxdquFmNUjYl08s5fuzGDIpX56ROLpxtKCaDsDFgsvq41mwSSZQuT0qS7DULzAgE7PKW5luhJBxMXu8=,iv:z1OnnhP8cKZrn51FBEooiUSk8puOTqVoyXPfittM/RM=,tag:iLoN6Vh6PkXC0Gk4f2JoQA==,type:str]
+    pgp: []
+    unencrypted_suffix: _unencrypted
+    version: 3.8.1

modules/default.nix

@@ -1,4 +1,5 @@
 {
   sv1 = import ./sv1.nix;
   dk1 = import ./dk1.nix;
+  dk1-iso = import ./dk1-iso.nix;
 }

modules/dk1-iso.nix

@@ -0,0 +1,57 @@
+{
+  lib,
+  config,
+  modulesPath,
+  ...
+}: {
+  imports = with lib.nixosModules; [
+    (modulesPath + "/installer/cd-dvd/installation-cd-minimal.nix")
+    sops
+  ];
+
+  boot.extraModulePackages = with config.boot.kernelPackages; [
+    rtl88xxau-aircrack
+  ];
+
+  sops = {
+    gnupg.sshKeyPaths = [];
+    age = {
+      sshKeyPaths = [];
+      keyFile = "/iso/key";
+    };
+    secrets = {
+      home_ssid.sopsFile = lib.secrets.network-manager;
+      home_psk.sopsFile = lib.secrets.network-manager;
+    };
+    templates.networkManager.content = ''
+      home_ssid="${config.sops.placeholder.home_ssid}"
+      home_psk="${config.sops.placeholder.home_psk}"
+    '';
+  };
+
+  networking = {
+    hostName = "dk1-iso";
+    wireless.enable = false;
+    networkmanager = {
+      enable = true;
+      ensureProfiles = {
+        profiles.home = {
+          connection = {
+            id = "home";
+            type = "wifi";
+          };
+          wifi = {
+            ssid = "$home_ssid";
+            mode = "infrastructure";
+          };
+          wifi-security = {
+            auth-alg = "open";
+            key-mgmt = "wpa-psk";
+            psk = "$home_psk";
+          };
+        };
+        environmentFiles = [config.sops.templates.networkManager.path];
+      };
+    };
+  };
+}

overlays/lib.nix

@@ -4,13 +4,13 @@
   impermanence,
   sops-nix,
 }: final: prev: let
-  inherit (nixos-config) overlays library;
+  inherit (nixos-config) library overlays nixosConfigurations nixosModules;
 in
   library
-  // {inherit overlays;}
+  // {inherit overlays nixosConfigurations;}
   // {
     nixosModules =
-      nixos-config.nixosModules
+      nixosModules
       // disko.nixosModules
       // sops-nix.nixosModules
       // impermanence.nixosModules;

packages/default.nix

@@ -1,4 +1,6 @@
 {pkgs}: {
   my-vim = pkgs.callPackage ./my-vim {};
   my-site = pkgs.callPackage ./my-site {};
+  iso-writer = pkgs.callPackage ./iso-writer {};
+  dk1-iso = pkgs.callPackage ./dk1-iso {};
 }

packages/dk1-iso/default.nix

@@ -0,0 +1,4 @@
+{lib}: let
+  inherit (lib.nixosConfigurations) dk1-iso;
+in
+  dk1-iso.config.system.build.isoImage

packages/iso-writer/default.nix

@@ -0,0 +1,30 @@
+{
+  lib,
+  stdenvNoCC,
+  makeWrapper,
+  coreutils,
+  xorriso,
+  dk1-iso,
+}: let
+  inherit (lib) makeBinPath;
+  runtimeInputs = [
+    coreutils
+    xorriso
+  ];
+in
+  stdenvNoCC.mkDerivation {
+    name = "iso-writer";
+    src = ./src;
+    nativeBuildInputs = [makeWrapper];
+    buildInputs = runtimeInputs;
+    installPhase = ''
+      mkdir -p $out/bin
+      cp $src/iso-writer.sh $out/bin/iso-writer
+      chmod +x $out/bin/iso-writer
+    '';
+    postFixup = ''
+      wrapProgram $out/bin/iso-writer                   \
+        --set PATH ${makeBinPath runtimeInputs}         \
+        --set source ${dk1-iso}/iso/${dk1-iso.isoName}
+    '';
+  }

packages/iso-writer/src/iso-writer.sh

@@ -0,0 +1,62 @@
+#!/usr/bin/env bash
+
+read -a arguments <<< "$@"
+number_of_arguments="${#arguments[@]}"
+arguments_last_index="$(expr $number_of_arguments - 1)"
+for argument_index in $(seq 0 "$arguments_last_index")
+do
+    argument="${arguments[argument_index]}"
+    next_argument_index="$(expr $argument_index + 1)"
+    next_argument="${arguments[next_argument_index]}"
+    case "$argument" in
+    --*)
+        name="${argument/--/}"
+        [ "$argument_index" -eq "$arguments_last_index" \
+            -o "${next_argument:0:2}" = "--" ]          \
+            && declare "$name=$name"
+        ;;
+    *)
+        value="$argument"
+        [ -n "$name" ]                  \
+            && declare "$name=$value"
+        name=""
+        ;;
+    esac
+done
+
+[ -n "$help" ]                                              \
+    && printf "Usage: iso-writer"                           \
+    && printf " [--help]"                                   \
+    && printf " --source source"                            \
+    && printf " [--key key]"                                \
+    && printf " [--target target]"                          \
+    && printf " --device device"                            \
+    && printf "\n"                                          \
+    && printf "Write a keyed nixos-config iso to a device." \
+    && printf "\n"                                          \
+    && exit
+
+root_id="0"
+[ "$(id -u)" -ne "$root_id" ]                       \
+    && printf "Not running as root, exiting.\n" >&2 \
+    && exit
+[ -z "$source" ]                                \
+    && printf "Source missing, exiting.\n" >&2  \
+    && exit
+[ -z "$device" ]                                \
+    && printf "Device missing, exiting.\n" >&2  \
+    && exit
+[ -z "$key" ]           \
+    && target="$source"
+[ -n "$key" -a -z "$target" ]                   \
+    && temporary_directory="$(mktemp -d)"       \
+    && target="$temporary_directory/target.iso" \
+    && trap "rm -rf \"$target\"" SIGTERM
+
+[ -n "$key" ]                   \
+    && xorriso                  \
+        -indev "$source"        \
+        -outdev "$target"       \
+        -map "$key" /key        \
+        -boot_image any replay
+dd bs=4M status=progress if="$target" of="$device"