Chainsaw is a declarative testing tool for Kubernetes operators and controllers.
Chainsaw addresses the challenge of writing end-to-end tests for Kubernetes workloads by providing a declarative approach rather than imperative test code. Instead of writing traditional test scripts, users define test scenarios in a declarative format that specifies the desired state, actions to perform, and assertions to validate. This approach makes tests more readable, maintainable, and easier to reason about, particularly for complex Kubernetes environments where multiple resources interact.
Teams building Kubernetes operators and controllers should consider Chainsaw if they want tests that are easier to write and understand compared to traditional programmatic testing frameworks. The tool works well for projects that need to validate operator behavior across multiple Kubernetes resources and their interactions. While Chainsaw was initially developed for testing Kyverno policies, it can declaratively test any Kubernetes objects, making it applicable beyond its original use case.
The project maintains active community engagement through weekly public meetings held on Thursdays, with an open agenda where community members can raise topics and provide feedback. The maintainers actively solicit input from users and contributors through these structured forums. Documentation is comprehensive, with multiple blog posts and video resources explaining core concepts like assertion trees and practical testing patterns. The project publishes a roadmap outlining planned features and upcoming updates, signaling transparency about the direction of development.
