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| ## Architecture |
| [Apache Traffic Server (ATS)](https://trafficserver.apache.org/) is a high performance, open-source, caching proxy server that is scalable and configurable. This project uses ATS as a [Kubernetes(K8s)](https://kubernetes.io/) [ingress](https://kubernetes.io/docs/concepts/services-networking/ingress/) |
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| From high-level, the ingress controller talks to K8s' API and sets up `watchers` on specific resources that are interesting to ATS. Then, the controller _controls_ ATS by either(1) relay the information from K8s API to ATS, or (2) configure ATS directly. |
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