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deployment-scripts/backup-traefik.sh

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#!/usr/bin/env bash
# ==============================================================================
# Traefik Backup Script
# ==============================================================================
# Archives /opt/traefik/ (acme.json certs + all dynamic configs).
# Always hot — Traefik doesn't need to be stopped for file copy.
#
# Usage: backup-traefik.sh
# ==============================================================================
set -euo pipefail
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "${SCRIPT_DIR}/common.sh"
parse_args "$@"
SERVICE_NAME="traefik"
BASE_DIR="/opt/${SERVICE_NAME}"
BACKUP_DIR="/opt/backup"
STAMP="$(date +%Y%m%d-%H%M%S)"
BACKUP_FILE="${BACKUP_DIR}/backup-${SERVICE_NAME}-${STAMP}.tar.gz"
[[ -d "$BASE_DIR" ]] || fatal "Traefik is not deployed at ${BASE_DIR}."
mkdir -p "$BACKUP_DIR"
info "Creating archive (hot — Traefik stays running)..."
tar czf "$BACKUP_FILE" -C / "opt/${SERVICE_NAME}"
# --- Rotate old backups (keep last 5) ---
# shellcheck disable=SC2012
ls -t "${BACKUP_DIR}/backup-${SERVICE_NAME}-"*.tar.gz 2>/dev/null | tail -n +6 | xargs -r rm --
ok "Backup: ${BACKUP_FILE} ($(du -h "$BACKUP_FILE" | cut -f1))"