Deploy a sample Java microservice on Amazon EKS and expose the microservice using an Application Load Balancer

The deploy Java microservice on Amazon EKS template  offers a ready-to-use framework for deploying a Java microservice on Amazon EKS (Elastic Kubernetes Service) and exposing it through an Application Load Balancer (ALB). It addresses all critical aspects of modern cloud-native deployments, including private subnets and NAT gateways, dynamic auto-scaling and secure container image management with Amazon ECR. This template aims to reduce operational complexity while ensuring high availability and scalability.

Why This Cloudairy Template is Built for Real-world DevOps Needs ?

For teams aiming to run production-grade microservices in the cloud, this template offers more than just infrastructure—it offers reliability, security, and agility out of the box. By integrating Kubernetes orchestration with ALB traffic routing, private-public subnet management, and automated scaling policies, it removes the need to manually stitch together components. You get a hardened, scalable architecture without starting from scratch, helping you focus on code and delivery instead of infrastructure plumbing.

Who This Template Is Designed for and the Best Time to Use It ?

The deploy Java microservice on Amazon EKS template is ideal for DevOps teams, backend engineers, solution architects, or cloud professionals who want to deploy Java microservices in a secure, scalable environment without diving deep into the complexities of Kubernetes networking or AWS architecture. It's particularly valuable:

• When migrating monoliths to microservices

• While setting up CI/CD-ready cloud-native environments

• During the development of APIs or backend services with high availability requirements

• When you want to standardise infrastructure deployment across teams

What Are the Main Components of the Template ?

The architecture includes everything you need to run and manage your microservices efficiently:

• Amazon EKS for Kubernetes orchestration

• Elastic Load Balancer (ALB) for external traffic distribution

• Amazon ECR for secure container image storage

• Private and Public Subnets separate internal services from public access.

• NAT Gateway for secure internet-bound traffic from private services

• Auto Scaling groups to ensure workload adaptability

• Worker Nodes to run the Java microservice

• Kubernetes Ingress for routing and traffic management

• IAM Roles for secure access control

• Service Discovery, Logging, Monitoring, and CI/CD Pipelines to ensure visibility and automation

How to Get Started with Cloudairy ?

1. Log in to your Cloudairy account.

2. Navigate to the Template Library and search for “Deploy a Java Microservice on Amazon EKS.”

3. Click on the template to preview its architecture.

4. Select "Use Template" to begin customizing your configuration.

5. Edit deployment settings, review auto-scaling policies, and integrate with your DevOps workflows.

6. Deploy directly to your AWS environment and monitor everything from one unified view.

Summary 

Cloud microservices deployment doesn’t have to be complex. This Cloudairy template takes care of Kubernetes setup, load balancing, security and scaling- so you can focus on building reliable, high-performance applications. Whether you’re modernizing, scaling, or starting fresh, it gives you a solid production-ready foundation.

This guide provides a complete walkthrough on how to deploy Java microservice on Amazon EKS and expose it using an Application Load Balancer (ALB) for secure, scalable access. It begins with containerizing your Java application, storing the image in Amazon ECR, and then deploying it to an EKS cluster using Kubernetes manifests. By following the steps outlined, you’ll learn to configure ALB ingress, create listener rules, and set up health checks to maintain reliability and availability.

The tutorial emphasizes best practices for achieving automated scaling, fault tolerance, and efficient traffic routing. Whether you’re working on development, testing, or production workloads, knowing how to deploy Java microservice on Amazon EKS ensures your applications are optimized for performance and ready for real-world demands. With proper implementation, you’ll also improve security, streamline deployments, and leverage AWS services effectively. Ultimately, mastering how to deploy Java microservice on Amazon EKS equips you to build resilient, cloud-native microservices at scale.