
##### 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: complex
  contains:
    db_parameter_group_name:
      description: The name of the DP parameter group.
      returned: always
      type: str
      sample: default.mariadb10.0
    parameter_apply_status:
      description: The status of parameter updates.
      returned: always
      type: str
      sample: in-sync
db_security_groups:
  description: A list of DB security groups associated with this DB instance.
  returned: always
  type: list
  sample: []
db_subnet_group:
  description: The subnet group associated with the DB instance.
  returned: always
  type: complex
  contains:
    db_subnet_group_description:
      description: The description of the DB subnet group.
      returned: always
      type: str
      sample: default
    db_subnet_group_name:
      description: The name of the DB subnet group.
      returned: always