dotfiles/modules/home/rsydn/secrets.nix

70 lines
2 KiB
Nix

{ config, lib, inputs, ... }:
let
inherit (lib) mkEnableOption mkOption mkIf types;
cfg = config.rsydn.secrets;
sanitizeSecret = name: secret:
let
sopsFile = secret.sopsFile or cfg.defaultSopsFile;
extra = lib.filterAttrs (k: _: !(builtins.elem k [ "path" "mode" "sopsFile" ])) secret;
in
{
path = secret.path or "${config.xdg.configHome}/secrets/${name}";
mode = secret.mode or "0400";
}
// (lib.optionalAttrs (sopsFile != null) { inherit sopsFile; })
// extra;
in {
imports = [ inputs.sops-nix.homeManagerModules.sops ];
options.rsydn.secrets = {
enable = mkEnableOption "sops-nix integration for managing decrypted secrets";
ageKeyFile = mkOption {
type = types.str;
default = "${config.home.homeDirectory}/.config/sops/age/keys.txt";
description = "Path to the Age key used for decrypting secrets.";
};
defaultSopsFile = mkOption {
type = types.nullOr types.path;
default = null;
description = "Optional default SOPS file used when a secret definition omits `sopsFile`.";
};
secrets = mkOption {
type = types.attrsOf types.attrs;
default = { };
description = "Secret entries forwarded to `sops.secrets` with sensible defaults.";
example = lib.literalExpression ''
{
"api-key" = {
sopsFile = ./secrets.yaml;
path = "${config.xdg.configHome}/secrets/api-key";
mode = "0400";
};
}
'';
};
};
config = mkIf cfg.enable {
sops =
{
age = {
keyFile = cfg.ageKeyFile;
generateKey = true;
};
secrets = lib.mapAttrs sanitizeSecret cfg.secrets;
}
// (lib.optionalAttrs (cfg.defaultSopsFile != null) {
defaultSopsFile = cfg.defaultSopsFile;
});
home.activation.ensureSecretDir = lib.hm.dag.entryAfter [ "writeBoundary" ] ''
mkdir -p "${config.xdg.configHome}/secrets"
chmod 700 "${config.xdg.configHome}/secrets"
'';
};
}