Spring Boot - Cloud Configuration Server

Spring Boot Cloud Configuration Server is a centralized configuration management system for storing and managing configuration properties for your applications.
It helps you manage configuration properties for different environments, such as development, testing, and production, in a single place.

Here’s an example of how you can create a Spring Boot Cloud Configuration Server for a simple car microservice:

Cloud Configuration Server:

Create a new Spring Boot project and add the following dependencies to your pom.xml file:

<dependencies>
    <dependency>
        <groupid>org.springframework.cloud</groupid>
        <artifactid>spring-cloud-config-server</artifactid>
    </dependency>
</dependencies>

<groupid>org.springframework.cloud</groupid>

<artifactid>spring-cloud-config-server</artifactid>

</dependency>

</dependencies>

Next, add the following annotations to your main class to enable the cloud configuration server:

@SpringBootApplication
@EnableConfigServer
public class ConfigurationServerApplication {
    public static void main(String[] args) {
        SpringApplication.run(ConfigurationServerApplication.class, args);
    }
}

@SpringBootApplication

@EnableConfigServer

public class ConfigurationServerApplication {

public static void main(String[] args) {

SpringApplication.run(ConfigurationServerApplication.class, args);

}

And add the following properties to your application.properties or application.yml file to specify the location of your configuration files:

spring:
  cloud:
    config:
      server:
        git:
          uri: https://github.com/your-username/config-repo.git

spring:

cloud:

config:

server:

git:

uri: https://github.com/your-username/config-repo.git

Car Microservice:

Create another Spring Boot project and add the following REST endpoint in your main class:

@RestController
@RefreshScope
public class CarController {
    @Value("${car.name}")
    private String carName;

    @GetMapping("/car")
    public String getCar() {
        return carName;
    }
}

@RestController

@RefreshScope

public class CarController {

@Value("${car.name}")

private String carName;

@GetMapping("/car")

public String getCar() {

return carName;

}

And add the following properties to your application.properties or application.yml file:

server.port: 8081
spring.application.name: car-service

server.port: 8081

spring.application.name: car-service

Configuration Files:

Create a new Git repository and add the following files to it:

application.yml:

car-service:
  name: Audi

car-service:

name: Audi

bootstrap.yml:

spring:
  application:
    name: car-service
  cloud:
    config:
      uri: http://localhost:8888

spring:

application:

name: car-service

cloud:

config:

uri: http://localhost:8888

This file specifies the URI of the cloud configuration server and the name of the application.

That’s it! You can now run both the cloud configuration server and the car microservice. The car microservice will retrieve its configuration properties from the cloud configuration server. You can test this by accessing the car endpoint through a GET request to http://localhost:8081/car, which should return the value Audi.

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