Comment 4 for bug 1833554

These steps work for me and the link appears in the right place:

$ sudo yum install centos-release-openstack-stein
[snipped]
$ sudo yum install openstack-keystone httpd mod_wsgi
[snipped]
$ sudo ln -s /usr/share/keystone/wsgi-keystone.conf /etc/httpd/conf.d/
$ ls -l /etc/httpd/conf.d
total 16
-rw-r--r--. 1 root root 2926 Apr 24 13:45 autoindex.conf
-rw-r--r--. 1 root root 366 Apr 24 13:46 README
-rw-r--r--. 1 root root 1252 Apr 24 13:44 userdir.conf
-rw-r--r--. 1 root root 824 Apr 24 13:44 welcome.conf
lrwxrwxrwx. 1 root root 38 Jun 21 21:11 wsgi-keystone.conf -> /usr/share/keystone/wsgi-keystone.conf

Are you seeing any error message?