keystone.py 文件源码

def create_trust(ctxt):
    LOG.debug("Creating Keystone trust")

    trusts_auth_plugin = _get_trusts_auth_plugin()

    loader = loading.get_plugin_loader("v3token")
    auth = loader.load_from_options(
        auth_url=trusts_auth_plugin.auth_url,
        token=ctxt.auth_token,
        project_name=ctxt.project_name,
        project_domain_name=ctxt.project_domain)
    session = ks_session.Session(
        auth=auth, verify=not CONF.keystone.allow_untrusted)

    try:
        trustee_user_id = trusts_auth_plugin.get_user_id(session)
    except ks_exceptions.Unauthorized as ex:
        LOG.exception(ex)
        raise exception.NotAuthorized("Trustee authentication failed")

    trustor_user_id = ctxt.user
    trustor_proj_id = ctxt.tenant
    roles = ctxt.roles

    LOG.debug("Granting Keystone trust. Trustor: %(trustor_user_id)s, trustee:"
              " %(trustee_user_id)s, project: %(trustor_proj_id)s, roles:"
              " %(roles)s",
              {"trustor_user_id": trustor_user_id,
               "trustee_user_id": trustee_user_id,
               "trustor_proj_id": trustor_proj_id,
               "roles": roles})

    # Trusts are not supported before Keystone v3
    client = kc_v3.Client(session=session)
    trust = client.trusts.create(trustor_user=trustor_user_id,
                                 trustee_user=trustee_user_id,
                                 project=trustor_proj_id,
                                 impersonation=True,
                                 role_names=roles)
    LOG.debug("Trust id: %s" % trust.id)
    return trust.id