def METHOD_NAME(profile=None):
    """
    Set up openstack credentials
    """
    if profile:
        credentials = __salt__["config.option"](profile)
        user = credentials["keystone.user"]
        password = credentials.get("keystone.password", None)
        tenant = credentials["keystone.tenant"]
        auth_url = credentials["keystone.auth_url"]
        auth_version = credentials.get("keystone.auth_version", 2)
        region_name = credentials.get("keystone.region_name", None)
        api_key = credentials.get("keystone.api_key", None)
        os_auth_system = credentials.get("keystone.os_auth_system", None)
    else:
        user = __salt__["config.option"]("keystone.user")
        password = __salt__["config.option"]("keystone.password", None)
        tenant = __salt__["config.option"]("keystone.tenant")
        auth_url = __salt__["config.option"]("keystone.auth_url")
        auth_version = __salt__["config.option"]("keystone.auth_version", 2)
        region_name = __salt__["config.option"]("keystone.region_name")
        api_key = __salt__["config.option"]("keystone.api_key")
        os_auth_system = __salt__["config.option"]("keystone.os_auth_system")
    kwargs = {
        "user": user,
        "password": password,
        "key": api_key,
        "tenant_name": tenant,
        "auth_url": auth_url,
        "auth_version": auth_version,
        "region_name": region_name,
    }
    return suos.SaltSwift(**kwargs)