Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
Salt - Fast, scalable and flexible software for data center automation
Chef - Automation for all of your technology. Overcome the complexity and rapidly ship your infrastructure and apps anywhere with automation.
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.
SaltStack - SaltStack event-driven automation delivers security, cloud and configuration management for a software-defined world and enterprise complexity and scale.
Cobbler - Cobbler is a Linux installation server that allows for rapid setup of network installation...