1. Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine

  2. Tool for building, changing, and versioning infrastructure safely and efficiently.

  3. Get started with Puppet Enterprise, or upgrade or expand.

  4. Automation for all of your technology. Overcome the complexity and rapidly ship your infrastructure and apps anywhere with automation.

  5. Packer is an open-source software for creating identical machine images from a single source configuration.

  6. Open Source Platform for Running a Private Container Service

  7. RunDeck is an open source automation service with a web console, command line tools and a WebAPI.

  8. Codeship is a fast and secure hosted Continuous Delivery platform that scales with your needs.

  9. Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development

  10. HHVM is an open-source virtual machine designed for executing programs written in Hack and PHP.

  11. Juju is a open source, solution-driven orchestration tool from Ubuntu that helps you deploy, manage and scale your environments on any cloud

  12. CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.