Ambassador is a popular open-source Kubernetes-native API Gateway for microservices. It provides a unified interface to external clients and is designed to handle HTTP and gRPC traffic.
An Ingress Controller is a Kubernetes resource that manages incoming network traffic and routes it to the appropriate services. The Ambassador Ingress Controller is an implementation of this concept that uses the Envoy proxy to manage and route traffic to Kubernetes services.
In simpler terms, the Ambassador Ingress Controller is a Kubernetes-native API gateway that manages incoming network traffic to your Kubernetes services. It enables you to define and configure routing rules for incoming traffic, and provides features like SSL termination, load balancing, and rate limiting. By using the Ambassador Ingress Controller, you can simplify your microservices architecture and improve the scalability and reliability of your Kubernetes environment.