68 lines
1.7 KiB
Nix
68 lines
1.7 KiB
Nix
# Regular backup role to a separate device
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{
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systemdMount, # Systemd mount name
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borgArchiveFolder, # Absolute borg root folder
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keepWithin? "14d",
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keepWeekly? "4",
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keepMonthly? "6",
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keepYearly? "-1",
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schedule? "13:37", # Systemd Schedule of backup timer
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}:
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let pkgs = import<nixpkgs>{};
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in
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{
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systemd = {
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services.backup = {
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description = "Backup of all user data and system configuration with BorgBackup";
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serviceConfig.Type = "oneshot";
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path = with pkgs; [ bash borgbackup ];
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script = ''
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#!/usr/bin/env bash
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set -euo pipefail
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IFS=$'\n\t'
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systemctl start ${systemdMount}
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export BORG_REPO=${borgArchiveFolder} \
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BORG_BASE_DIR=${borgArchiveFolder}/borg-base-dir
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echo "Backup started at `date`"
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borg create --exclude /var/backup \
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--exclude /var/tmp \
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--exclude /var/cache \
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$BORG_REPO::{hostname}-{now} \
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/etc \
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/home \
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/root \
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/var
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sync
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echo "Backup finished at `date`"
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echo "Backup prune started at `date`"
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borg prune --prefix '{hostname}-' \
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--keep-within ${keepWithin} \
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--keep-weekly ${keepWeekly} \
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--keep-monthly ${keepMonthly} \
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--keep-yearly ${keepYearly}
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sync
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echo "Backup prune finished at `date`"
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systemctl stop ${systemdMount}
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'';
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};
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timers.backup = {
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description = "Backup Schedule";
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timerConfig = {
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OnCalendar = schedule;
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Persistent = "true";
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};
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wantedBy = [ "timers.target" ];
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};
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};
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}
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