netflix Archives - BeginnersBug

Here we are going to create netflix eureka discovery server using spring boot

What is Discovery Server

Discovery server is an application which hold basic information like host name, port about all the micro-services.

What is Eureka

Eureka is the project name of Discovery server which is created by Netflix.

What is the annotation for discovery server

@EnableEurekaServer

Dependency

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

<dependency>                                                         
  <groupId>org.springframework.cloud</groupId>                       
  <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>

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

pom.xml

https://github.com/rkumar9090/discovery-server/blob/master/pom.xml

application.properties

server.port=8761
eureka.client.registerWithEureka= false
eureka.client.fetchRegistry= false

Main class

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;

@SpringBootApplication
@EnableEurekaServer
public class DiscoveryServerApplication {

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

How to create Discovery Server

Here we are going to create discovery server with the help of spring boot and with help of some annotation

Time needed: 30 minutes

Steps

Spring Initializer
Navigate to https://start.spring.io/
Add Eureka Server Dependency
In the dependency text box add eureka server as dependency
Click on Generate
Once you entered group id, artifact-id& dependency click on Generate
Import the downloaded project in your favorite IDE
Once you clicked Generate you project will download, after that you can import in your IDE
Add @EnableEurekaServer in the main class
Once you imported you project in IDE, Go to the Main class and add @EnableEurekaServer annotation
Change application.properties
Replace your application.properties with below content
server.port=8761
eureka.client.registerWithEureka= false
eureka.client.fetchRegistry= false
Build and Run
Now you can run your application
Testing
Open browser and navigate to http://localhost:8761/

Register Spring boot with Eureka

Refer below article to register spring boot micro services with eureka discovery server
https://beginnersbug.com/register-spring-boot-micro-services-to-eureka-discovery/

Github

https://github.com/rkumar9090/discovery-server

register spring boot micro-services to eureka discovery