openstack project create --domain default --description "Service Project" service执行报错，可以帮我看看，解决一下哇

报错原因：
Failed to discover available identity versions when contacting http://openstack-allinone:5000/v3. Attempting to parse version from URL.
Unable to establish connection to http://openstack-allinone:5000/v3/auth/tokens: HTTPConnectionPool(host='openstack-allinone', port=5000): Max retries exceeded with url: /v3/auth/tokens (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7ff6050c3590>: Failed to establish a new connection: [Errno 111] \xe6\x8b\x92\xe7\xbb\x9d\xe8\xbf\x9e\xe6\x8e\xa5',))

你是不是配置有问题？可以看我的博客

centOS8 Keystone安装_谢谢大家我爱小谢的博客-CSDN博客 控制节点1 创建keystone库，授权keystone用户#log inmysql -u root CREATE DATABASE keystone;GRANT ALL PRIVILEGES ON keystone.* TO 'keystone'@'localhost' IDENTIFIED BY 'root';GRANT ALL PRIVILEGES ON keystone.* TO 'keystone'@'%' IDENTIFIED BY 'root;2 安装rpm包yum ins https://blog.csdn.net/Dummy_/article/details/123572889