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# nixos-config - My current NixOS configuration
#
# Copyright (C) 2025 Benedikt Peetz <benedikt.peetz@b-peetz.de>
# SPDX-License-Identifier: GPL-3.0-or-later
#
# This file is part of my nixos-config.
#
# You should have received a copy of the License along with this program.
# If not, see <https://www.gnu.org/licenses/gpl-3.0.txt>.
{
config,
lib,
...
}: let
cfg = config.soispha.services.snapper;
in {
options.soispha.services.snapper = {
enable = lib.mkEnableOption "snapper config";
};
config = lib.mkIf cfg.enable {
services.snapper = {
configs = {
srv = {
SUBVOLUME = "/srv";
FSTYPE = "btrfs";
# users and groups allowed to work with config
ALLOW_GROUPS = ["wheel"];
# sync users and groups from ALLOW_USERS and ALLOW_GROUPS to .snapshots
# directory
SYNC_ACL = true;
# run daily number cleanup
NUMBER_CLEANUP = false;
# limit for number cleanup
NUMBER_MIN_AGE = 1800;
NUMBER_LIMIT = 50;
NUMBER_LIMIT_IMPORTANT = 10;
# create hourly snapshots
TIMELINE_CREATE = true;
# cleanup hourly snapshots after some time
TIMELINE_CLEANUP = true;
# limits for timeline cleanup
TIMELINE_MIN_AGE = 1800;
TIMELINE_LIMIT_HOURLY = 7;
TIMELINE_LIMIT_DAILY = 3;
TIMELINE_LIMIT_WEEKLY = 2;
TIMELINE_LIMIT_MONTHLY = 0;
TIMELINE_LIMIT_YEARLY = 2;
# cleanup empty pre-post-pairs
EMPTY_PRE_POST_CLEANUP = true;
};
};
};
};
}
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