无法建立与 http://controller:9696/v2.0/networks 的连接

Question

我正在设置由控制器和计算节点组成的 openstack 基础架构。

我遵循从 USSURI 版本开始设置子服务的过程：keystone、glance、placement。见article

当我来到 neutron 服务时，我开始使用选项 1（网络提供商）设置托管在控制器节点中的组件，所以我分别关注了这 3 篇文章：process 1/3 - process 2/3 - process 3/3

当我去创建一个网络（过程 3/3）时，我收到这个错误消息：

$openstack network create --project-domain Default --project service --share --external --provider-physical-network provider --provider-network-type flat --enable provider

Unable to establish connection to http://controller:9696/v2.0/networks: HTTPConnectionPool(host='controller', port=9696): Max retries exceeded with url: /v2.0/networks (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7fd0a7c13630>: Failed to establish a new connection: [Errno 111] Connection refused',))

请等待帮助。

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如果问题有帮助，请投票。提前致谢。

Answer 1

我得到了答案……

控制器节点 Neutron 设置过程应该在过程 2/3 停止，我们不能继续前进，因为这个必要的命令还没有通过：

su -s /bin/sh -c "neutron-db-manage --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugins/ml2/ml2_conf.ini upgrade head" neutron 

它同步 Neutron 数据库并为 Neutron keystone-authentication 创建必要的表。

Answer 2

我录制了这些命令：

# service neutron-server restart
# service neutron-linuxbridge-agent restart
# service neutron-dhcp-agent restart
# service neutron-metadata-agent restart
# service apache2 restart

在使用调试选项传递有问题的 cmd 之前：

$ openstack network create --debug --project-domain Default --project service --share --external --provider-physical-network provider --provider-network-type flat --enable provider

但仍在处理同样的问题：

keystoneauth1.exceptions.connection.ConnectFailure: Unable to establish connection to http://controller:9696/v2.0/networks: HTTPConnectionPool(host='controller', port=9696): Max retries exceeded with url: /v2.0/networks (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f1cc735e7f0>: Failed to establish a new connection: [Errno 111] Connection refused',))

我也可以将此行视为调试输出：

urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='controller', port=9696): Max retries exceeded with url: /v2.0/networks (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f1cc735e7f0>: Failed to establish a new connection: [Errno 111] Connection refused',))

此外，我将此部分添加到我的 conf 文件 (/etc/neutron/neutron.conf)：

[keystone_authtoken]
# ...
www_authenticate_uri = http://controller:5000
auth_url = http://controller:5000
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = neutron
password = XXXXXXXXXXXX