Deploy Spring Boot MVC Application on AWS | Elastic Beanstalk

In this tutorial, we will learn how to deploy a spring boot MVC application on AWS using the Elastic beanstalk service.

The YouTube video version of this tutorial available at Deploy Spring Boot MVC Application on AWS | Elastic Beanstalk ( YouTube Video)

With Elastic Beanstalk, you can quickly deploy and manage applications in the AWS Cloud without having to learn about the infrastructure that runs those applications. Elastic Beanstalk reduces management complexity without restricting choice or control. You simply upload your application, and Elastic Beanstalk automatically handles the details of capacity provisioning, load balancing, scaling, and application health monitoring.

To understand more about this tutorial, I have created a YouTube video on the same topic so I highly recommend you to watch the YouTube video. (YouTube video present at end of this tutorial)

Development process:

1. Create Spring Boot Application

2. Build a simple Thymeleaf hello world page

3. Package the JAR file using Maven

4. Create a new application in Elastic Beanstalk

5. Upload the JAR file to Elastic Beanstalk

#javaguides #springboot @aws

1. Create Spring Boot Application

1. Open Eclipse STS IDE
2. New -> Spring Starter Project
3. Specify project details
                 Project name: springboot-web-app-aws-example
                 Select Dependencies: 
                 spring-boot-starter-thymeleaf
                 spring-boot-starter-web
Here is pom.xml file for your reference:
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.4.3</version>
		<relativePath /> <!-- lookup parent from repository -->
	</parent>
	<packaging>war</packaging>
	<groupId>net.javaguides</groupId>
	<artifactId>springboot-web-app-aws-example</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>springboot-web-app-aws-example</name>
	<description>Demo project for Spring Boot</description>
	<properties>
		<java.version>1.8</java.version>
	</properties>
	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-thymeleaf</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>

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

		<!-- marked the embedded servlet container as provided -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-tomcat</artifactId>
			<scope>provided</scope>
		</dependency>
	</dependencies>

	<build>
		<finalName>springboot-web-app-aws-example</finalName>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>

</project>

2. Build a simple Thymeleaf hello world page

<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Spring boot Thymeleaf App deployment on AWS</title>
</head>
<body>
	<h1 th:text = "${message}"></h1>
</body>
</html>
Let's create a Spring MVC controller to return the above Thymeleaf template:
package net.javaguides.springboot;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;

@Controller
public class HelloWorldController {
	
	@GetMapping("/hello")
	public String hello(Model model) {
		model.addAttribute("message", "Deploying Spring MVC App on AWS");
		return "helloworld";
	}

}

3. Package the JAR file using Maven

Use below maven command to package this spring boot project as a JAR file:
mvn clean install

4. Create a new application in Elastic Beanstalk

1. Login to AWS console
2. Go to Elastic beanstalk service
3. Create a new application in Elastic beanstalk
    Application name: springboot-web-app-aws-example
    Platform: Java
    Platform branch: keep default selected
    Platform version: keep default selected

Watch below YouTube video below to understand more about this step.

5. Upload the JAR file to Elastic Beanstalk

- Click on Upload file
- Select JAR file from local File system
- Click on Create Application

How to change the post?

By default, Spring Boot applications will listen on port 8080. Elastic Beanstalk assumes that the application will listen on port 5000. There are two ways to fix this discrepancy: change the port Elastic Beanstalk is configured to use, or change the port the Spring Boot application listens on. 

For this post, we will change the port the Spring Boot application listens on 8080 in the application.properties file.

server.port=5000

Watch below YouTube video below to understand more about this step.

YouTube Video

This tutorial explained step by step in below YouTube video:

Free Spring Boot Tutorial | Full In-depth Course | Learn Spring Boot in 10 Hours


Watch this course on YouTube at Spring Boot Tutorial | Fee 10 Hours Full Course

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