DevƧcope

Overview

This case study outlines the successful migration of a monolithic Java application hosted on AWS EC2 to a containerized microservices architecture on Amazon EKS. We utilized infrastructure-as-code, CI/CD automation, and modern orchestration tools to deliver a scalable and efficient deployment model.

Challenges

• Legacy EC2-hosted Java monolith with manual deployments
• Lack of CI/CD pipelines or branching strategies
• No centralized deployment orchestration
• Limited visibility and scalability on legacy architecture

What We Delivered

• Containerized monolithic applications using Docker to enable consistent, portable, and environment-agnostic deployments across development, staging, and production.
• Defined and implemented a branching strategy in GitHub to support separate workflows for application development and infrastructure as code (IaC), improving collaboration and deployment velocity.
• Automated CI/CD pipelines using GitHub Actions and webhooks to trigger environment-specific deployments, ensuring faster and more reliable delivery cycles.
• Integrated Octopus Deploy as the central orchestrator, enabling controlled, auditable, and secure deployment flows with enforced role-based access control and least-privilege principles.
• Used Terraform to provision and manage all infrastructure components, enabling version-controlled, reproducible, and modular infrastructure changes through Octopus pipelines.
• Deployed workloads to Amazon EKS and exposed services via API Gateway, enhancing scalability, observability, and external access with secure ingress configurations.
• Achieved high availability and operational efficiency through blue-green deployments, autoscaling configurations, and centralized orchestration, significantly reducing manual interventions and downtime.

Results