url-shortener-system-design

Implementation (Dockerized)

This project is fully containerized using Docker.

Reverse Proxy

Implemented as an NGINX container that exposes ports 80/443.

Gateway

Runs as a Docker container, offloading HTTP/S to gRPC.

URL-SVC Load Balancing

An internal NGINX container distributes traffic across multiple URL-SVC replicas. In production this done using autoscaling behind a load balancer.

Storage Service

Multiple STRG-SVC containers sit behind a load balancer and talk to Postgres.

Cache Service

Multiple CACHE-SVC containers sit behind a load balancer and talk to Redis.

All services communicate via an internal Docker network to ensure isolation and security. For the purpose of this demo we only use a single network.

UI is available at http://locahost