NGINX Ingress Controller is an open-source Kubernetes Ingress Controller that uses NGINX as a reverse proxy to manage incoming traffic to Kubernetes services. An Ingress Controller is a Kubernetes resource that manages incoming network traffic and routes it to the appropriate services. The NGINX Ingress Controller supports features such as SSL termination, load balancing, and URL rewriting.
The NGINX Ingress Controller is widely used because it is easy to configure, provides high performance and scalability, and supports a wide range of features. It is also customizable, allowing you to tailor it to your specific use case.