Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.
Unimus - Unimus is a Network Automation and Configuration management (NCM) solution designed for fast deployment network-wide and ease of use. Unimus does not require learning any abstraction or templating languages, and does not require any coding skills.
Terraform - Tool for building, changing, and versioning infrastructure safely and efficiently.
Oxidized - configuration backup software (IOS, JunOS) - silly attempt at rancid
Rancher - Open Source Platform for Running a Private Container Service
RANCID - RANCID - Really Awesome New Cisco confIg Differ.