OpenShift
Intro
OpenShift is a PaaS (Platform aas) that lets you easily manage containers, using both Docker and Kubernetes.
Openshift-Origin is the open source upstream of OpenShift (like Fedora is to RHEL).
Redhat Atomic is the Enterprise release of Red Hat that is configured for containers.
CentOS Atomic is the open source version.
So to get our open source PaaS, we install Centos Atomic, then install Openshift-Origin on it. I think.