Alternatives to: GitLab CI

Python-based continuous integration testing framework

Jenkins is a leading Open Source automation server for Continuous Integration and Continuous Delivery.

OpenTestFactory is an Open Source test orchestration framework for automating and managing automated tests.

Packer is a Hashicorp tool that automates the creation of identical machine and container images for multiple platforms from a single source configuration.

Woodpecker is a simple, yet powerful and extensible Open Source CI/CD engine.