
##### 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


if method_name:
        raw_parameters = arg_spec_to_rds_params(dict((k, module.params[k]) for k in module.params if k in parameter_options))
        parameters = get_parameters(client, module, raw_parameters, method_name)
        if parameters:
            result, changed = call_method(client, module, method_name, parameters)
        instance_id = get_final_identifier(method_name, module)
        
        if state != 'absent' and (not module.check_mode or instance):
            changed |= update_instance(client, module, instance, instance_id)
        if changed:
            instance = get_instance(client, module, instance_id)
            if state != 'absent' and (instance or not module.check_mode):
                for attempt_to_wait in range(0, 10):
                    instance = get_instance(client, module, instance_id)
                    if instance:
                        break
                    else:
                        sleep(5)
        if state == 'absent' and changed and not module.params['skip_final_snapshot']:
            instance.update(FinalSnapshot=get_final_snapshot(client, module, module.params['final_db_snapshot_identifier']))
    pending_processor_features = None
    if instance.get('PendingModifiedValues', {}).get('ProcessorFeatures'):
        pending_processor_features = instance['PendingModifiedValues'].pop('ProcessorFeatures')
    instance = camel_dict_to_snake_dict(instance, ignore_list=['Tags', 'ProcessorFeatures'])
    if pending_processor_features is not None:
        instance['pending_modified_values']['processor_features'] = pending_processor_features
    module.exit_json(changed=changed, **instance)
if __name__ == '__main__':
    main()