HHVM - HHVM is an open-source virtual machine designed for executing programs written in Hack and PHP.
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.
CloudPhysics - Analytics for virtual datacenters
Terraform - Tool for building, changing, and versioning infrastructure safely and efficiently.
Juju - Juju is a open source, solution-driven orchestration tool from Ubuntu that helps you deploy, manage and scale your environments on any cloud
Packer - Packer is an open-source software for creating identical machine images from a single source configuration.