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API Gateway & Reverse Proxy (Nginx + Spring Cloud Gateway) · Lesson

Centralized Configuration with Config Server

Manage gateway configurations centrally using Spring Cloud Config Server for dynamic updates and environment-specific settings.

Why Centralized Configuration?

In a microservice architecture, you might have many services, each with its own configuration files. Managing these files individually can become a huge challenge.

Imagine updating a database connection string across 20 different services! It's prone to errors and time-consuming.

  • Decentralized configs: Hard to manage at scale.
  • Inconsistent configs: Different services might have slightly varied settings.
  • Manual updates: Tedious and risky.

Meet Spring Cloud Config Server

Spring Cloud Config Server provides a centralized externalized configuration service for distributed systems. It's built on Spring Boot and can easily integrate with various backend storage options.

Think of it as a central hub where all your application's settings live. Your services (clients) then fetch their configurations from this hub.

  • Centralized storage: One place for all configurations.
  • Version controlled: Configurations stored in Git (or similar).
  • Environment specific: Easily manage configurations for different environments (dev, prod).

All lessons in this course

  1. JWT Authentication & Authorization
  2. Distributed Tracing with Sleuth/Zipkin
  3. Centralized Configuration with Config Server
  4. Exposing Metrics with Actuator & Prometheus
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