nixpkgs/modules/services/backup/rsnapshot.nix

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2013-10-06 22:22:25 +02:00
{ config, pkgs, ... }:
with pkgs.lib;
let cfg = config.services.rsnapshot;
in
{
options = {
services.rsnapshot = {
enable = mkEnableOption "rsnapshot backups";
configuration = mkOption {
default = "";
example = ''
retain hourly 24
retain daily 365
backup /home/ localhost/
'';
type = types.lines;
description = ''
rsnapshot configuration option in addition to the defaults from rsnapshot and this module.
'';
};
cronIntervals = mkOption {
default = {};
example = { "hourly" = "0 * * * *"; "daily" = "50 21 * * *"; };
type = types.attrsOf types.string;
description = ''
Periodicity at which intervals should be run by cron.
Note that the intervals also have to exist in configuration
as retain options.
'';
};
};
};
config = mkIf cfg.enable {
environment.systemPackages = [ pkgs.rsnapshot ];
services.cron.systemCronJobs =
mapAttrsToList (interval: time: "${time} root ${pkgs.rsnapshot}/bin/rsnapshot ${interval}") cfg.cronIntervals;
environment.etc."rsnapshot.conf".source = with pkgs; writeText "gen-rsnapshot.conf" (''
config_version 1.2
cmd_cp ${coreutils}/bin/cp
cmd_rsync ${rsync}/bin/rsync
cmd_ssh ${openssh}/bin/ssh
cmd_logger ${inetutils}/bin/logger
cmd_du ${coreutils}/bin/du
cmd_rsnapshot_diff ${rsnapshot}/bin/rsnapshot-diff
lockfile /run/rsnapshot.pid
'' + cfg.configuration);
};
}