Traefik

Traefik is a cloud-native reverse proxy and load balancer created by Containous (now Traefik Labs) in 2015. Unlike traditional reverse proxies that require manual configuration updates when services change, Traefik discovers services automatically by connecting to orchestration platforms — Docker, Kubernetes, Consul, and others.

Traefik reads container labels or Kubernetes ingress definitions and configures routing rules on the fly. It provides automatic HTTPS via Let's Encrypt, middleware for authentication and rate limiting, and a built-in dashboard for monitoring. Its dynamic configuration model is well-suited for microservice architectures where services are frequently scaled up and down. The project is open source on GitHub.