Microservices make it easier to deploy services independently, but they also create more public entry points, more routing rules, and more places where inconsistent security controls can appear. The practical question is how to protect a microservices architecture with a WAF while preserving the autonomy of each service team.

A useful starting point is to define the WAF boundary clearly. SafeLine operates as an HTTP or HTTPS reverse proxy: it receives traffic for the original application, filters malicious requests, and forwards safe traffic to the upstream application. This behavior is described in the official application protection guide . In a microservices environment, that means the WAF can sit at the edge of an API gateway or ingress layer, where it can inspect traffic before requests reach internal services.

The WAF should protect externally reachable routes first. Group routes by application or domain, then document the upstream address and listening port for each protected entry point.…