nixpkgs/nixos/modules/services/backup/duplicati.nix
2022-11-10 09:30:00 +01:00

87 lines
2.3 KiB
Nix

{ config, pkgs, lib, ... }:
with lib;
let
cfg = config.services.duplicati;
in
{
options = {
services.duplicati = {
enable = mkEnableOption (lib.mdDoc "Duplicati");
port = mkOption {
default = 8200;
type = types.port;
description = lib.mdDoc ''
Port serving the web interface
'';
};
dataDir = mkOption {
type = types.str;
default = "/var/lib/duplicati";
description = lib.mdDoc ''
The directory where Duplicati stores its data files.
::: {.note}
If left as the default value this directory will automatically be created
before the Duplicati server starts, otherwise you are responsible for ensuring
the directory exists with appropriate ownership and permissions.
:::
'';
};
interface = mkOption {
default = "127.0.0.1";
type = types.str;
description = lib.mdDoc ''
Listening interface for the web UI
Set it to "any" to listen on all available interfaces
'';
};
user = mkOption {
default = "duplicati";
type = types.str;
description = lib.mdDoc ''
Duplicati runs as it's own user. It will only be able to backup world-readable files.
Run as root with special care.
'';
};
};
};
config = mkIf cfg.enable {
environment.systemPackages = [ pkgs.duplicati ];
systemd.services.duplicati = {
description = "Duplicati backup";
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
serviceConfig = mkMerge [
{
User = cfg.user;
Group = "duplicati";
ExecStart = "${pkgs.duplicati}/bin/duplicati-server --webservice-interface=${cfg.interface} --webservice-port=${toString cfg.port} --server-datafolder=${cfg.dataDir}";
Restart = "on-failure";
}
(mkIf (cfg.dataDir == "/var/lib/duplicati") {
StateDirectory = "duplicati";
})
];
};
users.users = lib.optionalAttrs (cfg.user == "duplicati") {
duplicati = {
uid = config.ids.uids.duplicati;
home = cfg.dataDir;
group = "duplicati";
};
};
users.groups.duplicati.gid = config.ids.gids.duplicati;
};
}