Just followed the quickstart guide

https://www.rdoproject.org/install/quickstart/

 

sudo yum install -y https://www.rdoproject.org/repos/rdo-release.rpm

At this point

# cd /etc/yum.repos.d

# cat rdo-release.repo

[openstack-mitaka]
name=OpenStack Mitaka Repository
baseurl=http://mirror.centos.org/centos/7/cloud/$basearch/openstack-mitaka/
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-Cloud

#cat rdo-testing.repo
[openstack-mitaka-testing]
name=OpenStack Mitaka Testing
baseurl=http://buildlogs.centos.org/centos/7/cloud/$basearch/openstack-mitaka/
gpgcheck=0
enabled=0

I would be surprised if CentOS 7 repos start to work on F23 ( miracles don't happen )

I also believe that statement on  QuickStart page should now say "Mitaka"
"These instructions are to install the current Mitaka release."

Thanks
Boris.

$ sudo yum update -y

$ sudo yum install -y openstack-packstack

$ packstack --allinone