
##### SUMMARY

RDS services can auto-allocate storage. So you can start with the lowest ebs volume and don't care anymore about growing data in der database.  
The boto3 parameter to activate this feature is `MaxAllocatedStorage` (integer) 

>  The upper limit to which Amazon RDS can automatically scale the storage of the DB instance.

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
rds_instance


source_engine:
        description:
          - The identifier for the database engine that was backed up to create the files stored in the Amazon S3 bucket.
        choices:
          - mysql
        type: str
    source_engine_version:
        description:
          - The version of the database that the backup files were created from.
        type: str
    source_region:
        description:
          - The region of the DB instance from which the replica is created.
        type: str
    storage_encrypted:
        description:
          - Whether the DB instance is encrypted.
        type: bool
    storage_type:
        description:
          - The storage type to be associated with the DB instance. I(storage_type) does not apply to Aurora DB instances.
        choices:
          - standard
          - gp2
          - io1
        type: str
    tags:
        description:
          - A dictionary of key value pairs to assign the DB cluster.
        type: dict