.. confval:: aws_region

    :type: string
    :required: false

    the AWS region to use (e.g. ``eu-west-1``)

.. confval:: aws_access_key

    :type: string
    :required: false

    the AWS access key to use

.. confval:: aws_secret_access_key

    :type: string
    :required: false

    the AWS secret access key to use
