75 lines
2.1 KiB
Nix
75 lines
2.1 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let cfg = config.services.rsnapshot;
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in
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{
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options = {
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services.rsnapshot = {
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enable = mkEnableOption "rsnapshot backups";
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extraConfig = mkOption {
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default = "";
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example = ''
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retains hourly 24
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retain daily 365
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backup /home/ localhost/
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'';
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type = types.lines;
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description = ''
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rsnapshot configuration option in addition to the defaults from
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rsnapshot and this module.
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Note that tabs are required to separate option arguments, and
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directory names require trailing slashes.
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The "extra" in the option name might be a little misleading right
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now, as it is required to get a functional configuration.
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'';
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};
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cronIntervals = mkOption {
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default = {};
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example = { hourly = "0 * * * *"; daily = "50 21 * * *"; };
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type = types.attrsOf types.string;
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description = ''
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Periodicity at which intervals should be run by cron.
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Note that the intervals also have to exist in configuration
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as retain options.
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'';
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};
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package = mkOption {
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type = types.package;
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default = pkgs.rsnapshot;
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example = literalExample "pkgs.rsnapshotGit";
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description = ''
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RSnapshot package to use.
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'';
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};
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};
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};
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config = mkIf cfg.enable (let
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myRsnapshot = cfg.package.override { configFile = rsnapshotCfg; };
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rsnapshotCfg = with pkgs; writeText "gen-rsnapshot.conf" (''
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config_version 1.2
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cmd_cp ${coreutils}/bin/cp
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cmd_rsync ${rsync}/bin/rsync
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cmd_ssh ${openssh}/bin/ssh
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cmd_logger ${inetutils}/bin/logger
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cmd_du ${coreutils}/bin/du
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lockfile /run/rsnapshot.pid
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${cfg.extraConfig}
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'');
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in {
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environment.systemPackages = [ myRsnapshot ];
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services.cron.systemCronJobs =
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mapAttrsToList (interval: time: "${time} root ${myRsnapshot}/bin/rsnapshot ${interval}") cfg.cronIntervals;
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}
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);
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}
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