def _strip_cache_events(data, opts):
    '''
    Strip out user-configured sensitive event data. The fields to be stripped
    are configured in the main Salt Cloud configuration file, usually
    ``/etc/salt/cloud``.

    .. code-block: yaml

        cache_event_strip_fields:
          - password
          - priv_key

    .. versionadded:: 2014.7.0
    '''
    event_data = copy.deepcopy(data)
    strip_fields = opts.get('cache_event_strip_fields', [])
    for field in strip_fields:
        if field in event_data:
            del event_data[field]

    return event_data