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|
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.amazonImage;
in {
imports = [ ../../../modules/virtualisation/amazon-image.nix ];
# Required to provide good EBS experience,
# https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/nvme-ebs-volumes.html#timeout-nvme-ebs-volumes
# TODO change value to 4294967295 when kernel is updated to 4.15 or later
config.boot.kernelParams = [ "nvme_core.io_timeout=255" ];
options.amazonImage = {
name = mkOption {
type = types.str;
description = "The name of the generated derivation";
default = "nixos-disk-image";
};
contents = mkOption {
example = literalExample ''
[ { source = pkgs.memtest86 + "/memtest.bin";
target = "boot/memtest.bin";
}
]
'';
default = [];
description = ''
This option lists files to be copied to fixed locations in the
generated image. Glob patterns work.
'';
};
sizeMB = mkOption {
type = types.int;
default = if config.ec2.hvm then 2048 else 8192;
description = "The size in MB of the image";
};
format = mkOption {
type = types.enum [ "raw" "qcow2" "vpc" ];
default = "qcow2";
description = "The image format to output";
};
};
config.system.build.amazonImage = import ../../../lib/make-disk-image.nix {
inherit lib config;
inherit (cfg) contents format name;
pkgs = import ../../../.. { inherit (pkgs) system; }; # ensure we use the regular qemu-kvm package
partitionTableType = if config.ec2.hvm then "legacy" else "none";
diskSize = cfg.sizeMB;
fsType = "ext4";
configFile = pkgs.writeText "configuration.nix"
''
{
imports = [ <nixpkgs/nixos/modules/virtualisation/amazon-image.nix> ];
${optionalString config.ec2.hvm ''
ec2.hvm = true;
''}
}
'';
};
}
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