def _without_otter_metadata(metadata):
    """
    Return a copy of the metadata with all the otter-specific keys
    removed.
    """
    meta = {k: v for (k, v) in metadata.get('metadata', {}).iteritems()
            if not (k.startswith("rax:auto_scaling") or
                    k.startswith("rax:autoscale:"))}
    return {'metadata': meta}