Kubernetes

We should be able to whip a k8s pipeline based on https://buildkite.com/blog/getting-started-with-kubernetes-and-buildkite-a-bubbly-trip-in-the-clouds

**What use-case(s) is this template for? (e.g. CI, CD, Mobile, ML, Monorepos, etc.)**
CD

**What platform(s) (if applicable) should this template target? (e.g. Docker, Kubernetes, Linux, iOS, etc.)**
- Kubernetes

Maybe a specific cloud provider ie.
- AWS [EKS](https://aws.amazon.com/eks/)
- Google [GKE](https://cloud.google.com/kubernetes-engine?hl=en)
- Azure [AKS](https://azure.microsoft.com/en-au/products/kubernetes-service)

Start by reviewing the linked Buildkite Kubernetes article and the repository's existing pipeline templates. Clarify whether the template should target Kubernetes generally or AWS EKS, Google GKE, and Azure AKS, then define the CD workflow and its supported platform before implementation.

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