NGINX is one of the engines that powers cloud infrastructure. This open source tool has a thriving multi-million user community and has been popular for years now, displacing many LAMP stack solutions. NGINX tends to be used as a core of solutions as diverse as web servers, load balancers and API gateways. With Kubernetes rapidly becoming the most popular platform for dockerized infrastructures, a lot of companies are connecting their container-based web applications to the outside world with a Kubernetes Ingress Controller, sometimes without even knowing that it is based on NGINX.