101 lines
2.5 KiB
Nix
101 lines
2.5 KiB
Nix
{
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config,
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lib,
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pkgs,
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...
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}:
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with lib;
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let
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cfg = config.virtualisation.googleComputeImage;
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defaultConfigFile = pkgs.writeText "configuration.nix" ''
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{ ... }:
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{
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imports = [
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<nixpkgs/nixos/modules/virtualisation/google-compute-image.nix>
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];
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}
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'';
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in
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{
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imports = [
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./google-compute-config.nix
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./disk-size-option.nix
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(lib.mkRenamedOptionModuleWith {
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sinceRelease = 2411;
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from = [
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"virtualisation"
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"googleComputeImage"
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"diskSize"
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];
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to = [
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"virtualisation"
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"diskSize"
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];
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})
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];
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options = {
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virtualisation.googleComputeImage.configFile = mkOption {
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type = with types; nullOr str;
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default = null;
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description = ''
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A path to a configuration file which will be placed at `/etc/nixos/configuration.nix`
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and be used when switching to a new configuration.
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If set to `null`, a default configuration is used, where the only import is
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`<nixpkgs/nixos/modules/virtualisation/google-compute-image.nix>`.
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'';
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};
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virtualisation.googleComputeImage.compressionLevel = mkOption {
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type = types.int;
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default = 6;
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description = ''
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GZIP compression level of the resulting disk image (1-9).
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'';
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};
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virtualisation.googleComputeImage.efi = mkEnableOption "EFI booting";
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};
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#### implementation
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config = {
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boot.initrd.availableKernelModules = [ "nvme" ];
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boot.loader.grub = mkIf cfg.efi {
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device = mkForce "nodev";
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efiSupport = true;
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efiInstallAsRemovable = true;
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};
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fileSystems."/boot" = mkIf cfg.efi {
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device = "/dev/disk/by-label/ESP";
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fsType = "vfat";
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};
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system.build.googleComputeImage = import ../../lib/make-disk-image.nix {
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name = "google-compute-image";
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postVM = ''
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PATH=$PATH:${
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with pkgs;
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lib.makeBinPath [
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gnutar
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gzip
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]
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}
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pushd $out
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mv $diskImage disk.raw
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tar -Sc disk.raw | gzip -${toString cfg.compressionLevel} > \
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nixos-image-${config.system.nixos.label}-${pkgs.stdenv.hostPlatform.system}.raw.tar.gz
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rm $out/disk.raw
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popd
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'';
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format = "raw";
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configFile = if cfg.configFile == null then defaultConfigFile else cfg.configFile;
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partitionTableType = if cfg.efi then "efi" else "legacy";
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inherit (config.virtualisation) diskSize;
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inherit config lib pkgs;
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};
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};
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}
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