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