Goal
You’ll have to create a custom Vagrantfile script, which is supposed to provision and configure the following virtual machine:
Guest operating system x64 Linux GNU/Debian (use base images from https://github.com/opscode/bento)
Software to be installed automatically
Java 1.7 (openjdk is allowed, oracle jdk is better)
Jenkins
Ruby Version Manager
Virtualization provider to use: VirtualBox