infra/nix/os/lib/default.nix
2024-02-08 21:04:39 +01:00

65 lines
1.9 KiB
Nix

{
lib,
config,
}: let
keys = import ../../variables/keys.nix;
in {
mkUser = args:
lib.mkMerge [
{
isNormalUser = true;
extraGroups = [
"docker"
"wheel"
"libvirtd"
"networkmanager"
"vboxusers"
"users"
"input"
"audio"
"video"
"cdrom"
"adbusers"
"dialout"
"cdrom"
"fuse"
];
openssh.authorizedKeys.keys = keys.users.steveej.openssh;
# TODO: investigate why this secret cannot be found
# openssh.authorizedKeys.keyFiles = [
# config.sops.secrets.sharedSshKeys-steveej.path
# ];
}
args
];
disk = rec {
# TODO: verify the GPT PARTLABEL cap at 36 chars
shortenGptPartlabel = partlabel: (builtins.substring 0 36 partlabel);
# LVM doesn't allow most characters in VG names
# TODO: replace this with a whitelist for: [a-zA-Z0-9.-_+]
volumeGroup = diskId: builtins.replaceStrings [":"] [""] diskId;
# This is important at install-time
bootGrubDevice = diskId: "/dev/disk/by-id/" + diskId;
# These are guaranteed by LVM
rootFsDevice = diskId: "/dev/" + (volumeGroup diskId) + "/root";
swapFsDevice = diskId: "/dev/" + (volumeGroup diskId) + "/swap";
# Cannot use the disk ID here because might be different at install vs. runtime.
# Example: MMC card which is used in the internal reader vs. USB reader
bootFsDevice = diskId:
"/dev/disk/by-partlabel/" + (shortenGptPartlabel ("2-" + diskId));
bootLuksDevice = diskId:
"/dev/disk/by-partlabel/" + (shortenGptPartlabel ("3-" + diskId));
luksName = diskId: (volumeGroup diskId) + "pv";
luksPhysicalVolume = diskId: "/dev/mapper/" + (luksName diskId);
lvmPv = diskId: encrypted:
if encrypted == true
then luksPhysicalVolume diskId
else bootLuksDevice diskId;
};
}