Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.
CircleCI - CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.
Terraform - Tool for building, changing, and versioning infrastructure safely and efficiently.
Apache Ant - Apache Ant is a Java library and command-line tool whose mission is to drive processes described in build files as targets and extension points dependent upon each other.
Rancher - Open Source Platform for Running a Private Container Service