backup.sh
bash
| 1 | #!/usr/bin/env bash |
| 2 | # Postgres daily backup script — run via cron on the EC2 instance. |
| 3 | # Dumps the musehub database and rotates backups older than 14 days. |
| 4 | # |
| 5 | # Install (on EC2): |
| 6 | # sudo mkdir -p /opt/backups/musehub |
| 7 | # sudo chown ubuntu:ubuntu /opt/backups/musehub |
| 8 | # chmod +x /opt/musehub/deploy/backup.sh |
| 9 | # crontab -e |
| 10 | # # Add this line (runs daily at 3 AM): |
| 11 | # 0 3 * * * /opt/musehub/deploy/backup.sh >> /var/log/musehub-backup.log 2>&1 |
| 12 | |
| 13 | set -euo pipefail |
| 14 | |
| 15 | APP_DIR="/opt/musehub" |
| 16 | BACKUP_DIR="/opt/backups/musehub" |
| 17 | TIMESTAMP=$(date +%Y%m%d_%H%M%S) |
| 18 | BACKUP_FILE="$BACKUP_DIR/musehub_${TIMESTAMP}.sql.gz" |
| 19 | RETAIN_DAYS=14 |
| 20 | |
| 21 | mkdir -p "$BACKUP_DIR" |
| 22 | |
| 23 | echo "[$(date)] Starting backup..." |
| 24 | |
| 25 | # Load DB_PASSWORD from the app's .env |
| 26 | DB_PASSWORD=$(grep '^DB_PASSWORD=' "$APP_DIR/.env" | cut -d'=' -f2-) |
| 27 | |
| 28 | sudo docker compose -f "$APP_DIR/docker-compose.yml" exec -T postgres \ |
| 29 | env PGPASSWORD="$DB_PASSWORD" \ |
| 30 | pg_dump -U musehub musehub \ |
| 31 | | gzip > "$BACKUP_FILE" |
| 32 | |
| 33 | echo "[$(date)] Backup written: $BACKUP_FILE ($(du -sh "$BACKUP_FILE" | cut -f1))" |
| 34 | |
| 35 | echo "[$(date)] Removing backups older than $RETAIN_DAYS days..." |
| 36 | find "$BACKUP_DIR" -name "musehub_*.sql.gz" -mtime "+$RETAIN_DAYS" -delete |
| 37 | |
| 38 | echo "[$(date)] Backup complete. Files kept:" |
| 39 | ls -lh "$BACKUP_DIR" |