it-infra/aux-etc-nixos/backupdl-module.nix

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2022-09-24 09:07:55 +08:00
{ config, pkgs, lib, ... }:
with lib;
let
makeBackup = pkgs.writeScript "make-backupdl" ''
#!${pkgs.bash}/bin/bash
set -e
export PATH=${pkgs.rsync}/bin:${pkgs.openssh}/bin
rsync --ignore-existing -av nixbld.m-labs.hk:/home/backupdl /var/lib/backupdl
'';
cfg = config.services.backupdl;
in
{
options.services.backupdl = {
enable = mkOption {
type = types.bool;
default = false;
description = "Enable backups";
};
};
config = mkIf cfg.enable {
systemd.services.backupdl = {
description = "Nixbld backups download";
serviceConfig = {
Type = "oneshot";
User = "backupdl";
Group = "backupdl";
ExecStart = "${makeBackup}";
};
};
users.users.backupdl = {
name = "backupdl";
group = "backupdl";
description = "Nixbld backups download";
isSystemUser = true;
createHome = true;
home = "/var/lib/backupdl";
useDefaultShell = true;
};
users.extraGroups.backupdl = {};
systemd.timers.backupdl = {
description = "Nixbld backups download";
wantedBy = [ "timers.target" ];
timerConfig.OnCalendar = "*-*-* 18:00:00";
};
};
}