Add automated backup scripts for PostgreSQL and S3 files to Backblaze B2

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-08 14:38:48 +05:00
parent 48a9398905
commit e590f541b3
2 changed files with 199 additions and 0 deletions
@@ -0,0 +1,70 @@
+#!/bin/bash
+# LMS Second Brain — Backup Script
+# Backs up PostgreSQL (from Docker) + S3 files to Backblaze B2
+# Place at: /opt/lms-backup/backup.sh on the server
+# Cron: 0 3 * * * /opt/lms-backup/backup.sh >> /var/log/lms-backup.log 2>&1
+
+set -euo pipefail
+
+# ── Config ───────────────────────────────────────────────────────────────────
+DB_CONTAINER="lms-system-db-1"
+DB_USER="lms_user"
+DB_NAME="lms_db"
+
+BACKUP_DIR="/tmp/lms-backups"
+DATE=$(date +%Y%m%d_%H%M)
+DUMP_FILE="${BACKUP_DIR}/db_${DATE}.sql.gz"
+
+# B2 rclone remote name (configured via: rclone config)
+B2_REMOTE="b2lms"
+B2_BUCKET="lms-backups-second-brain"
+B2_DB_PATH="${B2_REMOTE}:${B2_BUCKET}/db"
+B2_FILES_PATH="${B2_REMOTE}:${B2_BUCKET}/files"
+
+# Hetzner S3 rclone remote name
+S3_REMOTE="hetzner"
+S3_BUCKET="lms-uploads"
+
+# Retention: keep last N daily backups
+KEEP_DAYS=7
+
+# ── Functions ─────────────────────────────────────────────────────────────────
+log() { echo "[$(date '+%Y-%m-%d %H:%M:%S')] $*"; }
+
+# ── Main ──────────────────────────────────────────────────────────────────────
+log "=== LMS Backup started ==="
+mkdir -p "$BACKUP_DIR"
+
+# 1. PostgreSQL dump
+log "Dumping PostgreSQL from container ${DB_CONTAINER}..."
+docker exec "$DB_CONTAINER" \
+  pg_dump -U "$DB_USER" "$DB_NAME" \
+  | gzip > "$DUMP_FILE"
+log "Dump created: ${DUMP_FILE} ($(du -sh "$DUMP_FILE" | cut -f1))"
+
+# 2. Upload DB dump to B2
+log "Uploading DB dump to Backblaze B2..."
+rclone copy "$DUMP_FILE" "$B2_DB_PATH"
+log "DB dump uploaded: ${B2_DB_PATH}/$(basename "$DUMP_FILE")"
+
+# 3. Sync S3 files to B2
+log "Syncing S3 files to Backblaze B2..."
+rclone sync \
+  "${S3_REMOTE}:${S3_BUCKET}" \
+  "$B2_FILES_PATH" \
+  --progress \
+  --transfers=8
+log "S3 files synced to ${B2_FILES_PATH}"
+
+# 4. Cleanup local temp files
+rm -f "$DUMP_FILE"
+log "Local temp files cleaned"
+
+# 5. Prune old DB backups on B2 (keep last KEEP_DAYS)
+log "Pruning DB backups older than ${KEEP_DAYS} days..."
+rclone delete "$B2_DB_PATH" \
+  --min-age "${KEEP_DAYS}d" \
+  --include "db_*.sql.gz"
+log "Pruning done"
+
+log "=== LMS Backup finished successfully ==="