MariaDB Data Encryption

Currently, we dont't encrypt the data of mariadb on disk.
We could have this optional feature to provide more security to customer.

MariaDB has different plugins for encryption
- File based Key Management
- AWS KMS & Hashicorp Vault

File based key management is not much secured even with encrypted keys, considering can be snapshotted and attached to other machine to extract data. Also, doesn't support Key Rotation.

Either we need to go for AWS KMS or build MariaDB plugin for the same

Docs : https://mariadb.com/docs/server/security/securing-mariadb/encryption/data-at-rest-encryption/data-at-rest-encryption-overview