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943 Stars 515 Forks Apache License 2.0 1.6K Commits 147 Opened issues


Repo for the controller-runtime subproject of kubebuilder (sig-apimachinery)

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Kubernetes controller-runtime Project

The Kubernetes controller-runtime Project is a set of go libraries for building Controllers. It is leveraged by Kubebuilder and Operator SDK. Both are a great place to start for new projects. See Kubebuilder's Quick Start to see how it can be used.


Versioning, Maintenance, and Compatibility

The full documentation can be found at, but TL;DR:


  • We follow Semantic Versioning (semver)
  • Use releases with your dependency management to ensure that you get compatible code
  • The master branch contains all the latest code, some of which may break compatibility (so "normal"
    go get
    is not recommended)




Community, discussion, contribution, and support

Learn how to engage with the Kubernetes community on the community page.

controller-runtime is a subproject of the kubebuilder project in sig apimachinery.

You can reach the maintainers of this project at:


Contributions are greatly appreciated. The maintainers actively manage the issues list, and try to highlight issues suitable for newcomers. The project follows the typical GitHub pull request model. See for more details. Before starting any work, please either comment on an existing issue, or file a new one.

Code of conduct

Participation in the Kubernetes community is governed by the Kubernetes Code of Conduct.

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