Deploying Envoy as an API Gateway for microservices involves using Edge Stack, a Kubernetes-native API Gateway, to simplify configuration and enhance the functionality of Envoy. While Envoy is a powerful tool for implementing API Gateway features like reverse proxy semantics and supporting distributed architectures, managing its configuration can become complex. Edge Stack addresses this by allowing configuration changes through Kubernetes annotations, providing necessary production configurations like monitoring and health checks, and extending Envoy with traditional API Gateway capabilities such as authentication. It integrates seamlessly with Istio for full service mesh functionality and relies on Kubernetes for scaling and availability, eliminating the need for a separate database. By deploying Edge Stack as a Kubernetes service and using tools like kubectl and Docker, it becomes easier to manage and test microservices, while diagnostics are accessible for monitoring Envoy's configuration.