pyrox.dev
1{ config, lib, pkgs, ... }:
2
3with lib;
4
5let
6 cfg = config.services.rsnapshot;
7 cfgfile = pkgs.writeText "rsnapshot.conf" ''
8 config_version 1.2
9 cmd_cp ${pkgs.coreutils}/bin/cp
10 cmd_rsync ${pkgs.rsync}/bin/rsync
11 cmd_ssh ${pkgs.openssh}/bin/ssh
12 cmd_logger ${pkgs.inetutils}/bin/logger
13 cmd_du ${pkgs.coreutils}/bin/du
14 lockfile /run/rsnapshot.pid
15
16 ${cfg.extraConfig}
17 '';
18in
19{
20 options = {
21 services.rsnapshot = {
22 enable = mkEnableOption "rsnapshot backups";
23 enableManualRsnapshot = mkOption {
24 description = "Whether to enable manual usage of the rsnapshot command with this module.";
25 default = true;
26 example = false;
27 type = types.bool;
28 };
29
30 extraConfig = mkOption {
31 default = "";
32 example = ''
33 retains hourly 24
34 retain daily 365
35 backup /home/ localhost/
36 '';
37 type = types.lines;
38 description = ''
39 rsnapshot configuration option in addition to the defaults from
40 rsnapshot and this module.
41
42 Note that tabs are required to separate option arguments, and
43 directory names require trailing slashes.
44
45 The "extra" in the option name might be a little misleading right
46 now, as it is required to get a functional configuration.
47 '';
48 };
49
50 cronIntervals = mkOption {
51 default = {};
52 example = { hourly = "0 * * * *"; daily = "50 21 * * *"; };
53 type = types.attrsOf types.string;
54 description = ''
55 Periodicity at which intervals should be run by cron.
56 Note that the intervals also have to exist in configuration
57 as retain options.
58 '';
59 };
60 };
61 };
62
63 config = mkIf cfg.enable (mkMerge [
64 {
65 services.cron.systemCronJobs =
66 mapAttrsToList (interval: time: "${time} root ${pkgs.rsnapshot}/bin/rsnapshot -c ${cfgfile} ${interval}") cfg.cronIntervals;
67 }
68 (mkIf cfg.enableManualRsnapshot {
69 environment.systemPackages = [ pkgs.rsnapshot ];
70 environment.etc."rsnapshot.conf".source = cfgfile;
71 })
72 ]);
73}