diff options
Diffstat (limited to 'nixos/modules/services/backup/rsnapshot.nix')
-rw-r--r-- | nixos/modules/services/backup/rsnapshot.nix | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/nixos/modules/services/backup/rsnapshot.nix b/nixos/modules/services/backup/rsnapshot.nix new file mode 100644 index 000000000000..178ba3ec7207 --- /dev/null +++ b/nixos/modules/services/backup/rsnapshot.nix @@ -0,0 +1,65 @@ +{ config, pkgs, ... }: + +with pkgs.lib; + +let cfg = config.services.rsnapshot; +in +{ + options = { + services.rsnapshot = { + enable = mkEnableOption "rsnapshot backups"; + + extraConfig = mkOption { + default = ""; + example = '' + retains 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. + + Note that tabs are required to separate option arguments, and + directory names require trailing slashes. + + The "extra" in the option name might be a little misleading right + now, as it is required to get a functional configuration. + ''; + }; + + 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 (let + myRsnapshot = pkgs.rsnapshot.override { configFile = rsnapshotCfg; }; + rsnapshotCfg = 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 + lockfile /run/rsnapshot.pid + + ${cfg.extraConfig} + ''); + in { + environment.systemPackages = [ myRsnapshot ]; + + services.cron.systemCronJobs = + mapAttrsToList (interval: time: "${time} root ${myRsnapshot}/bin/rsnapshot ${interval}") cfg.cronIntervals; + } + ); +} |