This repository will help you install Nexus on Apache Tomcat using Openshift. It is designed to download the latest war from the sonatype website. The nexus war url is configurable within the app.conf file.
Create an account at http://openshift.redhat.com, don't forget to create a namespace and install client tools as well.
Create a DIY application
rhc app create -t diy-0.1 -a nexus
Use these quickstart commands to install nexus
cd nexus
git remote add nexus git://github.com/ajagnanan/openshift-nexus.git
git rm -r diy .openshift misc README.md
git pull -s recursive -X theirs nexus master
Push nexus up to Openshift with
git push
That's it, you can now checkout your nexus at:
http://nexus-$yournamespace.rhcloud.com
The default nexus user is admin/admin123