[FIXED] Automatic refresh of Config Clients not working in Spring Boot 2

Issue

I am trying to migrate a simple example code with Spring Cloud Config Server and RabbitMQ as Spring Cloud Bus (based on Spring Boot 1.5.22.RELEASE and Spring Cloud Brixton.SR7) to Spring Boot 2.2.6.RELEASE and Spring Cloud Hoxton.SR3. The example consists of a Config Server, a Config Client, GitLab as SCM and RabbitMQ(3.8 - Erlang 22.1.5). The code is compiling, starting up, the push webhook is triggered and can also be seen in the server's and client's log.

The problem is that the property updated in Git is not updated in the client. On the base of the Spring Boot 1.5.22.RELEASE and Spring Cloud Brixton.SR7 it works reliable. But if I do curl -X POST http://localhost:8889/actuator/bus-refresh manually, the property will be updated.

What can be the problem or which property have I forgotten to configure?

Here is my configuration/code:

GitLab (started as Docker container) Push WebHook: http://user:password@localhost:8889/monitor

RabbitMQ (started as Docker container) no particular configuration

pom.xml Root module of Config server and client:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <packaging>pom</packaging>
    <modules>
        <module>spring-config-server</module>
        <module>spring-config-client</module>
    </modules>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.6.RELEASE</version>
        <relativePath/>
    </parent>

    <groupId>com.myorg</groupId>
    <artifactId>spring-config-mgmt</artifactId>
    <version>1.0-SNAPSHOT</version>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud-dependencies.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <repositories>
        <repository>
            <id>spring-milestones</id>
            <name>Spring Milestones</name>
            <url>https://repo.spring.io/milestone</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
    </repositories>

    <properties>
        <spring-cloud-dependencies.version>Hoxton.SR3</spring-cloud-dependencies.version>
    </properties>

</project>

pom.xml of Config Server:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>spring-config-mgmt</artifactId>
        <groupId>com.myorg</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>spring-config-server</artifactId>

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

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

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

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-stream-rabbit</artifactId>
        </dependency>

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

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>


</project>

pom.xml of Config Client:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>spring-config-mgmt</artifactId>
        <groupId>com.myorg</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>spring-config-client</artifactId>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-config</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>


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

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>


</project>

application.yml of Config Server:

server:
  port: 8889

spring:
  cloud:
    config:
      server:
        git:
          uri: git@localhost:root/springcloudconfig.git
          clone-on-start: true

  rabbitmq:
    host: localhost
    port: 5672
    username: guest
    password: guest

logging:
  level:
    org.springframework: DEBUG

application.yml of Config Client:

spring:
  rabbitmq:
    host: localhost
    port: 5672
    username: guest
    password: guest

logging:
  level:
    org.springframework: TRACE

bootstrap.properties of Config Client:

spring.application.name=config-client
spring.profiles.active=development
spring.cloud.config.uri=http://localhost:8889
spring.cloud.config.fail-fast=true
management.security.enabled=false

Config Server:

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.config.server.EnableConfigServer;

@SpringBootApplication
@EnableConfigServer
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

Config Client:

import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.scheduling.annotation.Scheduled;

@SpringBootApplication
@RefreshScope
@EnableScheduling
public class Application {

    @Value("${myProperty}")
    private String myProperty;

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

    @Scheduled(fixedDelay =1000)
    public void printProperty() {
        System.out.println("Value of property \"myProperty\": " + myProperty);
    }
}

Many thanks in advance

Solution

Setting the property spring.cloud.bus.id in bootstrap.properties fixed the problem: https://github.com/spring-cloud/spring-cloud-bus/issues/124#issuecomment-423960553

Not really pretty but it works.

Answered By - Joe
Answer Checked By - Mildred Charles (JavaFixing Admin)