nixos/modules/impermanence.nix
Jake Hillion 9dd6e4f2a3
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router: switch to impermanence
2023-07-23 18:09:43 +01:00

56 lines
1.3 KiB
Nix

{ config, lib, ... }:
let
cfg = config.custom.impermanence;
listIf = (enable: x: if enable then x else [ ]);
in
{
options.custom.impermanence = {
enable = lib.mkEnableOption "impermanence";
base = lib.mkOption {
type = lib.types.str;
default = "/data";
};
users = lib.mkOption {
type = with lib.types; listOf str;
default = [ "root" config.custom.user ];
};
};
config = lib.mkIf cfg.enable {
fileSystems.${cfg.base}.neededForBoot = true;
services.openssh.hostKeys = [
{ path = "/data/system/etc/ssh/ssh_host_ed25519_key"; type = "ed25519"; }
{ path = "/data/system/etc/ssh/ssh_host_rsa_key"; type = "rsa"; bits = 4096; }
];
environment.persistence."${cfg.base}/system" = {
hideMounts = true;
directories = [
"/etc/nixos"
] ++ (listIf config.custom.tailscale.enable [ "/var/lib/tailscale" ]);
};
home-manager.users =
let
mkUser = (x: {
name = x;
value = {
home.persistence."/data/users/${x}" = {
files = [
".zsh_history"
];
};
};
});
in
builtins.listToAttrs (builtins.map mkUser cfg.users);
systemd.tmpfiles.rules = builtins.map (x: "L ${config.users.users.${x}.home}/local - - - - /data/users/${x}") cfg.users;
};
}