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homelab-docs/scripts/backup-restic-yandex.sh

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#!/bin/bash
# Выгрузка /mnt/backup в Yandex Object Storage (S3) через restic (без каталога photos).
# Фото бэкапятся отдельно: backup-restic-yandex-photos.sh.
# Запускать на хосте Proxmox под root.
# Перед первым запуском: установить restic, создать /root/.restic-yandex.env и /root/.restic-password, выполнить restic init.
# Cron: 0 4 * * * (04:00, после окна 01:0003:30; 05:00 зарезервировано под перезагрузку).
set -e
ENV_FILE="/root/.restic-yandex.env"
BACKUP_PATH="/mnt/backup"
# Исключаем служебные каталоги и photos (фото — отдельный бэкап)
EXCLUDE_OPTS=(--exclude="$BACKUP_PATH/lost+found" --exclude="$BACKUP_PATH/photos")
if [ "$(id -u)" -ne 0 ]; then
echo "Запускайте под root."
exit 1
fi
if [ ! -f "$ENV_FILE" ]; then
echo "Нет файла $ENV_FILE. Скопируйте restic-yandex-env.example и задайте ключи."
exit 1
fi
# shellcheck source=/dev/null
source "$ENV_FILE"
for var in RESTIC_REPOSITORY AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY; do
if [ -z "${!var}" ]; then
echo "В $ENV_FILE не задано: $var"
exit 1
fi
done
if [ -z "$RESTIC_PASSWORD_FILE" ]; then
RESTIC_PASSWORD_FILE="/root/.restic-password"
fi
if [ ! -f "$RESTIC_PASSWORD_FILE" ]; then
echo "Файл с паролем репозитория не найден: $RESTIC_PASSWORD_FILE. Создайте его и выполните restic init."
exit 1
fi
export AWS_ACCESS_KEY_ID
export AWS_SECRET_ACCESS_KEY
export RESTIC_PASSWORD_FILE
export RESTIC_REPOSITORY
export AWS_DEFAULT_REGION="${AWS_DEFAULT_REGION:-ru-central1}"
if ! command -v restic >/dev/null 2>&1; then
echo "restic не установлен. Установите: apt install restic."
exit 1
fi
echo "Restic backup: $BACKUP_PATH (excl. photos) -> $RESTIC_REPOSITORY"
restic backup "$BACKUP_PATH" "${EXCLUDE_OPTS[@]}" --quiet
echo "Restic forget (retention 3 daily, 2 weekly, 2 monthly)..."
restic forget --keep-daily 3 --keep-weekly 2 --keep-monthly 2 --prune --quiet
echo "Restic prune..."
restic prune --quiet
echo "Restic backup done."