66 lines
2 KiB
Nix
66 lines
2 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.virtualisation.linodeImage;
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defaultConfigFile = pkgs.writeText "configuration.nix" ''
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_: {
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imports = [
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<nixpkgs/nixos/modules/virtualisation/linode-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 = [ ./linode-config.nix ];
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options = {
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virtualisation.linodeImage.diskSize = mkOption {
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type = with types; either (enum (singleton "auto")) ints.positive;
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default = "auto";
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example = 1536;
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description = ''
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Size of disk image in MB.
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'';
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};
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virtualisation.linodeImage.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/linode-image.nix>`
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'';
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};
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virtualisation.linodeImage.compressionLevel = mkOption {
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type = types.ints.between 1 9;
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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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};
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config = {
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system.build.linodeImage = import ../../lib/make-disk-image.nix {
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name = "linode-image";
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# NOTE: Linode specifically requires images to be `gzip`-ed prior to upload
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# See: https://www.linode.com/docs/products/tools/images/guides/upload-an-image/#requirements-and-considerations
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postVM = ''
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${pkgs.gzip}/bin/gzip -${toString cfg.compressionLevel} -c -- $diskImage > \
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$out/nixos-image-${config.system.nixos.label}-${pkgs.stdenv.hostPlatform.system}.img.gz
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rm $diskImage
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'';
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format = "raw";
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partitionTableType = "none";
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configFile = if cfg.configFile == null then defaultConfigFile else cfg.configFile;
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inherit (cfg) diskSize;
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inherit config lib pkgs;
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};
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};
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meta.maintainers = with maintainers; [ cyntheticfox ];
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}
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