【已解决】Failed to discover available identity versions when contacting http://controller:5000/v3.

输入openstack domain create --description “An Example Domain” example命令后出现错误：

Failed to discover available identity versions when contacting
http://controller:5000/v3. Attempting to parse version from URL.
Unable to establish connection to
http://controller:5000/v3/auth/tokens:
HTTPConnectionPool(host=‘controller’, port=5000): Max retries exceeded
with url: /v3/auth/tokens (Caused by
NewConnectionError(’<requests.packages.urllib3.connection.HTTPConnection
object at 0x7f61db3410d0>: Failed to establish a new connection:
[Errno 111] \xe6\x8b\x92\xe7\xbb\x9d\xe8\xbf\x9e\xe6\x8e\xa5’,))

解决方法：

一、输入如下指令，确保35357端口开启

netstat -anpt | grep 35357

若没反应进行下面操作！

二、设置/etc/httpd/conf.d/wsgi-keystone.conf文件

使用下面指令进入vi编辑器进行编辑：

vim /etc/httpd/conf.d/wsgi-keystone.conf

复制下面内容进入文件，保存退出：

Listen 5000

Listen 35357

<VirtualHost *:5000>

WSGIDaemonProcess keystone-public processes=5 threads=1 user=keystone group=keystone display-name=%{GROUP}

WSGIProcessGroup keystone-public

WSGIScriptAlias / /usr/bin/keystone-wsgi-public

WSGIApplicationGroup %{GLOBAL}

WSGIPassAuthorization On

LimitRequestBody 114688

<IfVersion >= 2.4>

ErrorLogFormat "%{cu}t %M"

</IfVersion>

ErrorLog /var/log/httpd/keystone.log

CustomLog /var/log/httpd/keystone_access.log combined

<Directory /usr/bin>

<IfVersion >= 2.4>

Require all granted

</IfVersion>

<IfVersion < 2.4>

Order allow,deny

Allow from all

</IfVersion>

</Directory>

</VirtualHost>

<VirtualHost *:35357>

WSGIDaemonProcess keystone-admin processes=5 threads=1 user=keystone group=keystone display-name=%{GROUP}

WSGIProcessGroup keystone-admin

WSGIScriptAlias / /usr/bin/keystone-wsgi-admin

WSGIApplicationGroup %{GLOBAL}

WSGIPassAuthorization On

ErrorLogFormat "%{cu}t %M"

ErrorLog /var/log/httpd/keystone-error.log

CustomLog /var/log/httpd/keystone-access.log combined

<Directory /usr/bin>

Require all granted

</Directory>

</VirtualHost>

Alias /identity /usr/bin/keystone-wsgi-public

<Location /identity>

SetHandler wsgi-script

Options +ExecCGI

WSGIProcessGroup keystone-public

WSGIApplicationGroup %{GLOBAL}

WSGIPassAuthorization On

</Location>

注：vi编辑器保存退出方法
在修改完上述内容后，按Esc键，输入 :wq ，然后回车即可保存退出。

三、重启httpd服务

输入下面指令，重启httpd服务：

systemctl restart httpd

四、完结撒花（运行成功）