There are 2 repositories under virtualbox-ova topic.
An ongoing & curated collection of awesome software, frameworks and libraries, learning tutorials and videos, technical guidelines and best practices about Operating Systems (OS)
A packer.io configuration for building out Galaxy (http://galaxyproject.org/) tool development environments.
packer repo using virtualbox-ovf starting from an existing ova
Installing Codenvy Web IDE on Bitnami Lamp Stack VM
Custom Ubuntu server for Oracle Virtual Box