71 lines
1.9 KiB
Nix
71 lines
1.9 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.virtualisation.digitalOceanImage;
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in
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{
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imports = [ ./digital-ocean-config.nix ];
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options = {
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virtualisation.digitalOceanImage.diskSize = mkOption {
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type = with types; either (enum [ "auto" ]) int;
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default = "auto";
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example = 4096;
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description = ''
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Size of disk image. Unit is MB.
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'';
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};
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virtualisation.digitalOceanImage.configFile = mkOption {
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type = with types; nullOr path;
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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
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<literal>/etc/nixos/configuration.nix</literal> and be used when switching
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to a new configuration. If set to <literal>null</literal>, a default
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configuration is used that imports
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<literal>(modulesPath + "/virtualisation/digital-ocean-config.nix")</literal>.
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'';
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};
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virtualisation.digitalOceanImage.compressionMethod = mkOption {
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type = types.enum [ "gzip" "bzip2" ];
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default = "gzip";
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example = "bzip2";
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description = ''
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Disk image compression method. Choose bzip2 to generate smaller images that
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take longer to generate but will consume less metered storage space on your
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Digital Ocean account.
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'';
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};
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};
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#### implementation
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config = {
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system.build.digitalOceanImage = import ../../lib/make-disk-image.nix {
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name = "digital-ocean-image";
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format = "qcow2";
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postVM = let
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compress = {
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"gzip" = "${pkgs.gzip}/bin/gzip";
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"bzip2" = "${pkgs.bzip2}/bin/bzip2";
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}.${cfg.compressionMethod};
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in ''
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${compress} $diskImage
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'';
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configFile = if cfg.configFile == null
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then config.virtualisation.digitalOcean.defaultConfigFile
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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; [ arianvp eamsden ];
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}
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