openshift create project

oc login
oc new-project pippo
oc new-app centos/ruby-22-centos7~https://github.com/openshift/ruby-ex.git

https://hub.docker.com/r/centos/ruby-22-centos7/ "This container image includes Ruby 2.2 as a S2I base image for your Ruby 2.2 applications."


https://github.com/openshift/ruby-ex "This is a basic ruby application for OpenShift v3 that you can use as a starting point to develop your own application and deploy it on an OpenShift cluster."