bd38b059ea
Introduce an AWS EC2 AMI which supports aarch64 and x86_64 with a ZFS root. This uses `make-zfs-image` which implies two EBS volumes are needed inside EC2, one for boot, one for root. It should not matter which is identified `xvda` and which is `xvdb`, though I have always uploaded `boot` as `xvda`.
73 lines
1.9 KiB
Nix
73 lines
1.9 KiB
Nix
{ config, lib, pkgs, ... }:
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let
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inherit (lib) types;
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in {
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options = {
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ec2 = {
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zfs = {
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enable = lib.mkOption {
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default = false;
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internal = true;
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description = ''
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Whether the EC2 instance uses a ZFS root.
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'';
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};
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datasets = lib.mkOption {
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description = ''
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Datasets to create under the `tank` and `boot` zpools.
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**NOTE:** This option is used only at image creation time, and
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does not attempt to declaratively create or manage datasets
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on an existing system.
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'';
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default = {};
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type = types.attrsOf (types.submodule {
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options = {
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mount = lib.mkOption {
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description = "Where to mount this dataset.";
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type = types.nullOr types.string;
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default = null;
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};
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properties = lib.mkOption {
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description = "Properties to set on this dataset.";
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type = types.attrsOf types.string;
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default = {};
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};
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};
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});
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};
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};
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hvm = lib.mkOption {
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default = lib.versionAtLeast config.system.stateVersion "17.03";
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internal = true;
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description = ''
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Whether the EC2 instance is a HVM instance.
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'';
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};
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efi = lib.mkOption {
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default = pkgs.stdenv.hostPlatform.isAarch64;
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internal = true;
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description = ''
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Whether the EC2 instance is using EFI.
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'';
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};
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};
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};
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config = lib.mkIf config.ec2.zfs.enable {
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networking.hostId = lib.mkDefault "00000000";
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fileSystems = let
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mountable = lib.filterAttrs (_: value: ((value.mount or null) != null)) config.ec2.zfs.datasets;
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in lib.mapAttrs'
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(dataset: opts: lib.nameValuePair opts.mount {
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device = dataset;
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fsType = "zfs";
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})
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mountable;
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};
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}
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