When you host your apps or microservices in Azure Spring Apps, you don't always want to publish them directly to the internet. You might want to expose them through a reverse proxy instead. This approach allows you to place a service in front of your apps. The service can define cross-cutting functionality like web application firewall (WAF) capabilities to help secure your apps, load balancing, routing, request filtering, and rate limiting
https://learn.microsoft.com/en-us/azure/architecture/web-apps/spring-apps/guides/spring-cloud-reverse-proxy
