2024-08-22 16:13:13 +02:00
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# SPDX-FileCopyrightText: 2020-2024 Simon Bruder <simon@sbruder.de>
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2024-01-06 01:19:35 +01:00
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#
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# SPDX-License-Identifier: AGPL-3.0-or-later
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2024-08-22 16:13:13 +02:00
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{ config, lib, pkgs, ... }:
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let
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cfg = config.sbruder.restic;
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sftpTarget = "u313368-sub4@u313368-sub4.your-storagebox.de";
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sftpPort = 23;
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repository = "sftp://${sftpTarget}:${toString sftpPort}/personal";
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mkPruneConfig = { tag, timerConfig }: {
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inherit repository timerConfig;
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passwordFile = config.sops.secrets.restic-password.path;
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paths = [ ];
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extraOptions = [
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"-o"
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"sftp.command='ssh -i ${config.sops.secrets.restic-ssh-key.path} -p ${toString sftpPort} ${sftpTarget} -s sftp'"
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];
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pruneOpts = [
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"--compression auto"
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"--keep-daily 7"
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"--keep-monthly 12"
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"--keep-weekly 5"
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"--keep-yearly 10"
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"--tag ${tag}"
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"--verbose"
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];
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};
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in
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2021-02-28 12:21:04 +01:00
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{
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imports = [
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./system.nix
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];
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2024-08-22 16:13:13 +02:00
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options.sbruder.restic = {
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enable = lib.mkEnableOption "restic";
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authScript.enable = (lib.mkEnableOption "script to use restic as user without dealing with authentication") // {
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default = cfg.enable && config.sbruder.gui.enable;
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};
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prune.enable = lib.mkEnableOption "pruning";
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};
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config = lib.mkIf cfg.enable (lib.mkMerge [
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{
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sops.secrets = {
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restic-password = { };
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restic-repository = { };
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};
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}
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(lib.mkIf cfg.authScript.enable {
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environment.systemPackages = [
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(pkgs.writeShellScriptBin "restic-auth" ''
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${pkgs.restic}/bin/restic \
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--password-command="pass data/backup/restic-nixos" \
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--repo "${repository}" \
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$@
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'')
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];
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})
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(lib.mkIf cfg.prune.enable {
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sops.secrets.restic-ssh-key = {
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sopsFile = ../../machines/${config.networking.hostName}/secrets.yaml;
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};
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services.restic.backups = {
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system-prune = mkPruneConfig {
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tag = "system";
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timerConfig = {
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OnCalendar = "*-1/2-07 03:00:00";
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RandomizedDelaySec = "4h";
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};
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};
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};
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})
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]);
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2021-02-28 12:21:04 +01:00
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}
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