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