Spring Cloud Bus and Spring Cloud Config Server

Use Spring Cloud Bus and Spring Cloud Config Server Together

Photo by Yehor Litsov on Unsplash

Firstly, you can follow these instructions for Spring Cloud Server:

Spring Cloud Config Server

Add these to your dependencies as an extra for Spring Cloud Bus:

<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-actuator</artifactId>
</dependency>

<dependency>
   <groupId>org.springframework.cloud</groupId>
   <artifactId>spring-cloud-config-monitor</artifactId>
</dependency>

<dependency>
   <groupId>org.springframework.cloud</groupId>
   <artifactId>spring-cloud-starter-bus-kafka</artifactId>
</dependency>

If you would like to inspect which dependencies in “spring-cloud-starter-bus-kafka”, these are the dependencies in version 3.0.3 (Here, I use a plugin called Maven Helper in IntelliJ to use “Dependency Analyzer” view in pom.xml file).

So, if you are already using “spring-kafka” as a dependency, you can remove it.

To be able to post our refresh command, you should add these properties to your config server’s application.properties:

spring.cloud.bus.enabled=true
management.endpoints.web.exposure.include=busrefresh

You can see allowed Actuator endpoints in IntelliJ ‘s related tab:

This is your cURL request (if you are using port no 8888 for your config server project):

curl -L -X POST 'http://localhost:8888/actuator/busrefresh'

After the POST request, go to your main project’s logs and see which keys are refreshed:

Voilà!

You can visit my Microservices project (implemented with Spring Cloud) GitHub url for sample code:

GitHub - senoritadeveloper01/nils-spring-microservices: A Mini Spring Boot Microservices Project

Happy Coding!