Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Ansible Semaphore - Modern UI for Ansible
Shippable - Add continuous integration and deployment to your GitHub repositories in a few minutes.
RunDeck - RunDeck is an open source automation service with a web console, command line tools and a WebAPI.
CircleCI - CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.
Semaphore - Semaphore is a fully managed, high performance testing and deployment solution for your company. A Continuous Integration tool.