Need:
- In microservices architectures, managing configuration properties for each service across different environments can become complex and error-prone. Spring Cloud Config addresses this by providing a centralized way to manage and update configuration properties for distributed systems.
What is it?
- Spring Cloud Config is a centralized configuration management tool for microservices.
- It allows storing configuration files in a central repository (e.g., Git) and sharing them across multiple services.
- Configurations are environment-specific (e.g., different settings for dev, test, and prod).
Why is it used?
- Centralized Configuration:
Instead of managing configurations for each microservice individually, Spring Cloud Config provides a single source of truth for configurations. * Dynamic Updates:
Services can refresh configurations at runtime without restarting, enabling seamless updates to properties like database credentials or feature flags. * Environment-Specific Configurations:
It supports different configurations for different environments, ensuring that each service fetches the correct settings based on where it's running. * Version Control:
Integration with version control systems like Git allows tracking, versioning, and rolling back configurations as needed.
How is it used?
- Config Server:
Acts as a centralized server that stores configuration properties and provides them to client microservices. * Config Clients:
Microservices fetch their configurations from the Config Server dynamically during startup or runtime.