how to install openstack on centos or fedora or rhel systems

openstack is a cloud system. it has many components. absolutely complicated to install and even worse to get it working just right. until about a week agonow. it is simplified to the following steps

1. fresh baremetal install of the os on hardware
2. install the repo
3. install the software that will install openstack
4. run the software to install openstack

so what is it? its packstack available at openstack.redhat.com