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windows: seal mode -- generic OOBE-deferred base, per-VM data on a config CD

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A sealed image bakes no per-VM data. generalize.nix gains a gated
configMedium flag (false path byte-identical, so the shared macOS
generalize path is untouched): the baked answer file stays generic and
the target's first boot reads hostname/static-IP/timezone/tint off a
small removable CD via a finder (vmix-load-config.cmd) + applier
(vmix-apply-config.ps1), with the static-IP script dot-sourcing the same
config. templates.seal is a thin preset (delayOobeRun + configMedium +
D:\Users profiles + a data disk); images gain a .seal leaf next to
.generalize; makeConfigMedium renders the per-VM ISO.

So one sealed store path is shared by every VM, each mints its own SID
on first boot and builds the whole profile on D:, and only a cheap ISO
is per-VM. Also folds in the delayOobeRun reconcile: extraDisk (and the
audit-mode data-disk init) are gated off under deferral, so a sealed
image ships with no throwaway `data` output -- the target's specialize
formats the host zvol instead.

vms: disks.config.file attaches the config medium as a second CD-ROM.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0117qMyjpuXsjpVAcpJbFD8g
This commit is contained in:
Git Sagar 2026-09-16 13:01:12 -03:00
parent c40f4460e3
commit 702f723e6d
6 changed files with 173 additions and 15 deletions
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19
lib/images/windows/default.nix
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@ -3,6 +3,7 @@ let
windows = rec {
drivers = import ./drivers { inherit pkgs system; };
makeFilesISO = (import ./helpers/makeFilesISO.nix) { inherit pkgs; };
makeConfigMedium = (import ./helpers/makeConfigMedium.nix) { inherit pkgs lib makeFilesISO; };
customizeImage = (import ./helpers/customizeImage.nix) { inherit pkgs lib; };
customizeImageFold = builtins.foldl' customizeImage;
templates = (import ./templates) { inherit pkgs lib system drivers makeFilesISO; };
@ -14,14 +15,20 @@ let
win10 = (import ./win10) { inherit pkgs lib system windows; };
win11 = (import ./win11) { inherit pkgs lib system windows; };
# Recursively add .generalize to every derivation leaf in the image tree
# Recursively add .generalize and .seal to every derivation leaf in the tree
addGeneralize = val:
if val ? _vmixOsType then
val // { generalize = args:
let
templateArgs = builtins.removeAttrs args [ "vncDisplay" ];
displayArgs = lib.optionalAttrs (args ? vncDisplay) { inherit (args) vncDisplay; };
in windows.customizeImage val (windows.templates.generalize templateArgs // displayArgs);
val // {
generalize = args:
let
templateArgs = builtins.removeAttrs args [ "vncDisplay" ];
displayArgs = lib.optionalAttrs (args ? vncDisplay) { inherit (args) vncDisplay; };
in windows.customizeImage val (windows.templates.generalize templateArgs // displayArgs);
seal = args:
let
templateArgs = builtins.removeAttrs args [ "vncDisplay" ];
displayArgs = lib.optionalAttrs (args ? vncDisplay) { inherit (args) vncDisplay; };
in windows.customizeImage val (windows.templates.seal templateArgs // displayArgs);
}
else if builtins.isAttrs val then
lib.mapAttrs (_: addGeneralize) val