
##### 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


type: bool
    apply_immediately:
        description:
          - A value that specifies whether modifying a cluster with I(new_db_instance_identifier) and I(master_user_password)
            should be applied as soon as possible, regardless of the I(preferred_maintenance_window) setting. If false, changes
            are applied during the next maintenance window.
        type: bool
        default: False
    auto_minor_version_upgrade:
        description:
          - Whether minor version upgrades are applied automatically to the DB instance during the maintenance window.
        type: bool
    availability_zone:
        description:
          - A list of EC2 Availability Zones that instances in the DB cluster can be created in.
            May be used when creating a cluster or when restoring from S3 or a snapshot. Mutually exclusive with I(multi_az).
        aliases:
          - az
          - zone
        type: str
    backup_retention_period:
        description:
          - The number of days for which automated backups are retained (must be greater or equal to 1).
            May be used when creating a new cluster, when restoring from S3, or when modifying a cluster.
        type: int
    ca_certificate_identifier:
        description:
          - The identifier of the CA certificate for the DB instance.
        type: str
    character_set_name: