Comment 2 for bug 1697634

https://docs.openstack.org/newton/install-guide-rdo/keystone-install.html#install-and-configure-components

Hello, my installation steps are as follows

yum install openstack-keystone httpd mod_wsgi

[root@controller01 ~]# egrep -v "^#|^$|*#" /etc/httpd/conf/httpd.conf
ServerRoot "/etc/httpd"
Listen 172.16.21.5:80
Include conf.modules.d/*.conf
User apache
Group apache
ServerAdmin root@localhost
ServerName 172.16.21.5:80
<Directory />
    AllowOverride none
    Require all denied
</Directory>
DocumentRoot "/var/www/html"
<Directory "/var/www">
    AllowOverride None
    Require all granted
</Directory>
<Directory "/var/www/html">
    Options Indexes FollowSymLinks
    AllowOverride None
    Require all granted
</Directory>
<IfModule dir_module>
    DirectoryIndex index.html
</IfModule>
<Files ".ht*">
    Require all denied
</Files>
ErrorLog "logs/error_log"
LogLevel warn
<IfModule log_config_module>
    LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
    LogFormat "%h %l %u %t \"%r\" %>s %b" common
    <IfModule logio_module>
      LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio
    </IfModule>
    CustomLog "logs/access_log" combined
</IfModule>
<IfModule alias_module>
    ScriptAlias /cgi-bin/ "/var/www/cgi-bin/"
</IfModule>
<Directory "/var/www/cgi-bin">
    AllowOverride None
    Options None
    Require all granted
</Directory>
<IfModule mime_module>
    TypesConfig /etc/mime.types
    AddType application/x-compress .Z
    AddType application/x-gzip .gz .tgz
    AddType text/html .shtml
    AddOutputFilter INCLUDES .shtml
</IfModule>
AddDefaultCharset UTF-8
<IfModule mime_magic_module>
    MIMEMagicFile conf/magic
</IfModule>
EnableSendfile on
IncludeOptional conf.d/*.conf

[root@controller01 ~]# cat /etc/httpd/conf.d/wsgi-keystone.conf
Listen 172.16.21.5:5000
Listen 172.16.21.5:35357

<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
    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>

Alias /identity /usr/bin/keystone-wsgi-public
<Location /identity>
    SetHandler wsgi-script
    Options +ExecCGI

    WSGIProcessGroup keystone-public
    WSGIApplicationGroup %{GLOBAL}
    WSGIPassAuthorization On
</Location>

Alias /identity_admin /usr/bin/keystone-wsgi-admin
<Location /identity_admin>
    SetHandler wsgi-script
    Options +ExecCGI

    WSGIProcessGroup keystone-admin
    WSGIApplicationGroup %{GLOBAL}
    WSGIPassAuthorization On
</Location>