How to Deploy Spring Boot to AWS: Step-by-Step Guide

To deploy a Spring Boot application to AWS, package your app as a jar file and upload it to AWS Elastic Beanstalk. Elastic Beanstalk handles server provisioning and deployment automatically, letting you focus on your app code.

Syntax

Deploying Spring Boot to AWS Elastic Beanstalk involves these main steps:

• Package: Build your Spring Boot app as an executable jar using Maven or Gradle.
• Create Environment: Use AWS Elastic Beanstalk to create a Java environment.
• Upload: Upload your jar file to Elastic Beanstalk.
• Deploy: Elastic Beanstalk deploys your app and manages the server.

bash

mvn clean package

# Then use AWS CLI to create and deploy
aws elasticbeanstalk create-application --application-name my-spring-app
aws elasticbeanstalk create-environment --application-name my-spring-app --environment-name my-env --solution-stack-name "64bit Amazon Linux 2 v3.4.6 running Corretto 17" --version-label v1 --option-settings Namespace=aws:elasticbeanstalk:application:environment,OptionName=JAVA_OPTS,Value="-Xms256m -Xmx512m"
aws elasticbeanstalk update-environment --environment-name my-env --version-label v1

Example

This example shows how to package a Spring Boot app and deploy it to AWS Elastic Beanstalk using the AWS CLI.

bash

1. Build your Spring Boot app jar:

mvn clean package

2. Initialize Elastic Beanstalk app and environment:

aws elasticbeanstalk create-application --application-name springboot-app

aws elasticbeanstalk create-environment --application-name springboot-app --environment-name springboot-env --solution-stack-name "64bit Amazon Linux 2 v3.4.6 running Corretto 17" --version-label v1

3. Upload your jar to S3:

aws s3 cp target/springboot-app-0.0.1-SNAPSHOT.jar s3://your-bucket/springboot-app-0.0.1-SNAPSHOT.jar

4. Create application version with your jar:

aws elasticbeanstalk create-application-version --application-name springboot-app --version-label v1 --source-bundle S3Bucket="your-bucket",S3Key="springboot-app-0.0.1-SNAPSHOT.jar"

5. Deploy the new version:

aws elasticbeanstalk update-environment --environment-name springboot-env --version-label v1

Output

Environment springboot-env is launching...
Application version v1 deployed successfully.
Your Spring Boot app is now running on AWS Elastic Beanstalk.

Common Pitfalls

Common mistakes when deploying Spring Boot to AWS include:

• Not packaging the app as an executable jar with dependencies included.
• Uploading the wrong file type (e.g., war instead of jar for Elastic Beanstalk Java SE).
• Forgetting to configure the correct Java version in Elastic Beanstalk environment.
• Not setting environment variables or JVM options needed by your app.
• Ignoring AWS IAM permissions needed for deployment commands.

bash

Wrong way:

# Uploading a war file instead of jar
aws elasticbeanstalk create-application-version --application-name springboot-app --version-label v1 --source-bundle S3Bucket="bucket",S3Key="app.war"

Right way:

# Package as jar and upload
mvn clean package
aws s3 cp target/app.jar s3://bucket/app.jar
aws elasticbeanstalk create-application-version --application-name springboot-app --version-label v1 --source-bundle S3Bucket="bucket",S3Key="app.jar"

Quick Reference

Tips for smooth deployment:

• Use mvn clean package to build your Spring Boot jar.
• Choose the correct Elastic Beanstalk platform: "64bit Amazon Linux 2 running Corretto 17" for Java 17.
• Upload your jar to an S3 bucket before creating an application version.
• Use AWS CLI commands or AWS Management Console for deployment.
• Monitor logs and health in Elastic Beanstalk dashboard.

Key Takeaways

Package your Spring Boot app as an executable jar before deployment.

Use AWS Elastic Beanstalk Java SE platform to deploy your jar easily.

Upload your jar to S3 and create an application version in Elastic Beanstalk.

Configure environment settings like Java version and JVM options properly.

Monitor deployment status and logs via AWS Elastic Beanstalk console.