Jenkins

An automation server that runs continuous integration and delivery jobs, scheduling builds, tests and deployments from a pipeline definition stored alongside your code. Its strength is the plugin ecosystem, which connects it to version control systems, issue trackers, cloud providers and container platforms, and it also provides distributed agents so builds can run across several machines.

Engineering teams use it to compile and test every push, to build and publish artifacts, and to promote the same artifact through staging and production.

Running the controller yourself keeps build logs and pipeline secrets inside your network, costs nothing per user, and lets you script backup and restore of job configuration alongside your repositories.