Return a list of available tenants (keystone tenants-list)

    CLI Example:

    .. code-block:: bash

        salt '*' keystone.tenant_list

def tenant_list(profile=None, **connection_args):
    '''
    Return a list of available tenants (keystone tenants-list)

    CLI Example:

    .. code-block:: bash

        salt '*' keystone.tenant_list
    '''
    kstone = auth(profile, **connection_args)
    ret = {}

    for tenant in getattr(kstone, _TENANTS, None).list():
        ret[tenant.name] = dict((value, getattr(tenant, value)) for value in dir(tenant)
                                if not value.startswith('_') and
                                isinstance(getattr(tenant, value), (six.string_types, dict, bool)))
    return ret