kube

The Kubernetes API is one of my least favourite Go packages - largely generated, boilerplate all over the show and hasn’t even adapted to use things like log/slog without some wrapper. A much nicer library for dealing with Kubernetes is the kube crate [1] for Rust. The worst aspect of it is the dependency discipline, though that is no worse than the official Go client. [1]: https://github.com/kube-rs/kube

We don't currently support anything like Kubebuilder's envtest helper, but it is on our radar (and I finally got around to making an issue for it[0]). The rest of Kubebuilder's testing page seems to be general for Go's test framework (in which case Rust should have native equivalents). Disclaimer: Co-maintainer of kube-rs [0]: https://github.com/clux/kube-rs/issues/382

Apart from that, the runtime module has also been overhauled completely since this blog post. In particular, the new `Controller`[0] adds a bunch of stuff over `Informer` to make it usable in production (merging duplicate queued events, parallel execution, delayed retries, fixed a bunch of internal race conditions, etc). We really need to make a 2020 edition of this blog post, but we do at least have an updated example controller.[1] (Not to dunk on TechnoSophos, none of that existed back when the blog post was written.) Disclaimer: Co-maintainer of kube-rs [0]: https://docs.rs/kube-runtime/0.47.0/kube_runtime/controller/... [1]: https://github.com/clux/kube-rs/blob/8611e5cdd23d4ff487fdcea...

The library used in the this post has gotten much better since this post was written (in 2019) Recently the ability to do `exec` and `attach` was added. It should reach feature parity with the Go version soon once `port forward` is added. https://github.com/clux/kube-rs