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nomicon/nixos/modules/virtualisation/openstack-options.nix

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{ config, lib, pkgs, ... }:
let
inherit (lib) literalExpression types;
in
{
options = {
openstack = {
zfs = {
enable = lib.mkOption {
default = false;
internal = true;
description = ''
Whether the OpenStack instance uses a ZFS root.
'';
};
datasets = lib.mkOption {
description = ''
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 = "Where to mount this dataset.";
type = types.nullOr types.string;
default = null;
};
properties = lib.mkOption {
description = "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 = ''
Whether the instance is using EFI.
'';
};
};
};
config = lib.mkIf config.openstack.zfs.enable {
networking.hostId = lib.mkDefault "00000000";
fileSystems =
let
mountable = lib.filterAttrs (_: value: ((value.mount or null) != null)) config.openstack.zfs.datasets;
in
lib.mapAttrs'
(dataset: opts: lib.nameValuePair opts.mount {
device = dataset;
fsType = "zfs";
})
mountable;
};
}