One option that wasn't originally intended for this use, but works really well, is Artificer (http://artificer.jboss.org http://artificer.jboss.org). It's an o

One option that wasn't originally intended for this use, but works really well, is Artificer (http://artificer.jboss.org http://artificer.jboss.org). It's an open source project that started out as a metadata and software artifact repository. However, it's expanded to include any type of logical information. It supports hierarchical classifiers, custom/ad-hoc properties, relationships between nodes, etc. I'm in the middle of working it into a demo that implements the "Getting Things Done" structure. It's self-hosted on Wildfly or JBoss EAP, but we're almost finished supporting Docker (ie, you'd be able to run it on OpenShift). Disclaimer: I'm the technical lead for the project.