How do you handle data persistence and backup strategies in Docker?

Docker data persistence and backup strategies: 1) Volume types: Named volumes (docker volume create db_data, docker run -v db_data:/var/lib/mysql mysql), Bind mounts (docker run -v /host/data:/container/data app), tmpfs (docker run --tmpfs /tmp app), 2) Database backup strategies: docker exec mysql mysqldump -u root -p database > backup.sql, docker exec postgres pg_dump -U user database > backup.sql, Volume backup with alpine tar, 3) Automated backup with cron scripts, 4) Docker Compose with backup service running pg_dump periodically, 5) Cross-region backup: aws s3 sync /backups s3://my-backup-bucket/. Best practices: Regular backup testing, Multiple backup locations, Encryption for sensitive data, Monitoring backup success, Documented recovery procedures.