Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.
Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
Terraform - Tool for building, changing, and versioning infrastructure safely and efficiently.
Chef - Automation for all of your technology. Overcome the complexity and rapidly ship your infrastructure and apps anywhere with automation.
Rancher - Open Source Platform for Running a Private Container Service
Packer - Packer is an open-source software for creating identical machine images from a single source configuration.