pyrox.dev
1{ config, lib, pkgs, ... }:
2let
3 inherit (lib) literalExpression types;
4in {
5 options = {
6 ec2 = {
7 zfs = {
8 enable = lib.mkOption {
9 default = false;
10 internal = true;
11 description = lib.mdDoc ''
12 Whether the EC2 instance uses a ZFS root.
13 '';
14 };
15
16 datasets = lib.mkOption {
17 description = lib.mdDoc ''
18 Datasets to create under the `tank` and `boot` zpools.
19
20 **NOTE:** This option is used only at image creation time, and
21 does not attempt to declaratively create or manage datasets
22 on an existing system.
23 '';
24
25 default = {};
26
27 type = types.attrsOf (types.submodule {
28 options = {
29 mount = lib.mkOption {
30 description = lib.mdDoc "Where to mount this dataset.";
31 type = types.nullOr types.string;
32 default = null;
33 };
34
35 properties = lib.mkOption {
36 description = lib.mdDoc "Properties to set on this dataset.";
37 type = types.attrsOf types.string;
38 default = {};
39 };
40 };
41 });
42 };
43 };
44 hvm = lib.mkOption {
45 default = lib.versionAtLeast config.system.stateVersion "17.03";
46 internal = true;
47 description = lib.mdDoc ''
48 Whether the EC2 instance is a HVM instance.
49 '';
50 };
51 efi = lib.mkOption {
52 default = pkgs.stdenv.hostPlatform.isAarch64;
53 defaultText = literalExpression "pkgs.stdenv.hostPlatform.isAarch64";
54 internal = true;
55 description = lib.mdDoc ''
56 Whether the EC2 instance is using EFI.
57 '';
58 };
59 };
60 };
61
62 config = lib.mkIf config.ec2.zfs.enable {
63 networking.hostId = lib.mkDefault "00000000";
64
65 fileSystems = let
66 mountable = lib.filterAttrs (_: value: ((value.mount or null) != null)) config.ec2.zfs.datasets;
67 in lib.mapAttrs'
68 (dataset: opts: lib.nameValuePair opts.mount {
69 device = dataset;
70 fsType = "zfs";
71 })
72 mountable;
73 };
74}