
##### 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


purge_cloudwatch_logs_exports:
        description: Set to False to retain any enabled cloudwatch logs that aren't specified in the task and are associated with the instance.
        type: bool
        default: True
    purge_tags:
        description: Set to False to retain any tags that aren't specified in task and are associated with the instance.
        type: bool
        default: True
    read_replica:
        description:
          - Set to False to promote a read replica cluster or true to create one. When creating a read replica C(creation_source) should
            be set to 'instance' or not provided. C(source_db_instance_identifier) must be provided with this option.
        type: bool
    wait:
        description:
          - Whether to wait for the cluster to be available, stopped, or deleted. At a later time a wait_timeout option may be added.
            Following each API call to create/modify/delete the instance a waiter is used with a 60 second delay 30 times until the instance reaches
            the expected state (available/stopped/deleted). The total task time may also be influenced by AWSRetry which helps stabilize if the
            instance is in an invalid state to operate on to begin with (such as if you try to stop it when it is in the process of rebooting).
            If setting this to False task retries and delays may make your playbook execution better handle timeouts for major modifications.
        type: bool
        default: True
    # Options that have a corresponding boto3 parameter
    allocated_storage:
        description:
          - The amount of storage (in gibibytes) to allocate for the DB instance.
        type: int
    allow_major_version_upgrade:
        description:
          - Whether to allow major version upgrades.