nixpkgs/nixos/modules/virtualisation/amazon-options.nix
Robert Hensing 22eb959f37 nixos/amazon-option: Tolerate harmless ec2.hvm for compatibility
Throwing an error necessitates changes in NixOps that are not safe yet.
2023-01-08 19:01:02 +01:00

74 lines
2.2 KiB
Nix

{ config, lib, pkgs, ... }:
let
inherit (lib) literalExpression types;
in {
options = {
ec2 = {
zfs = {
enable = lib.mkOption {
default = false;
internal = true;
description = lib.mdDoc ''
Whether the EC2 instance uses a ZFS root.
'';
};
datasets = lib.mkOption {
description = lib.mdDoc ''
Datasets to create under the `tank` and `boot` zpools.
**NOTE:** This option is used only at image creation time, and
does not attempt to declaratively create or manage datasets
on an existing system.
'';
default = {};
type = types.attrsOf (types.submodule {
options = {
mount = lib.mkOption {
description = lib.mdDoc "Where to mount this dataset.";
type = types.nullOr types.string;
default = null;
};
properties = lib.mkOption {
description = lib.mdDoc "Properties to set on this dataset.";
type = types.attrsOf types.string;
default = {};
};
};
});
};
};
efi = lib.mkOption {
default = pkgs.stdenv.hostPlatform.isAarch64;
defaultText = literalExpression "pkgs.stdenv.hostPlatform.isAarch64";
internal = true;
description = lib.mdDoc ''
Whether the EC2 instance is using EFI.
'';
};
hvm = lib.mkOption {
description = "Unused legacy option. While support for non-hvm has been dropped, we keep this option around so that NixOps remains compatible with a somewhat recent `nixpkgs` and machines with an old `stateVersion`.";
internal = true;
default = true;
readOnly = true;
};
};
};
config = lib.mkIf config.ec2.zfs.enable {
networking.hostId = lib.mkDefault "00000000";
fileSystems = let
mountable = lib.filterAttrs (_: value: ((value.mount or null) != null)) config.ec2.zfs.datasets;
in lib.mapAttrs'
(dataset: opts: lib.nameValuePair opts.mount {
device = dataset;
fsType = "zfs";
})
mountable;
};
}