GitOps-Based Cloud Deployment on AWS EKS A production-style GitOps pipeline that provisions AWS infrastructure using Terraform and deploys a Java web application to Kubernetes — fully automated through GitHub Actions.

Architecture Overview

Developer Push
      │
      ▼
GitHub Actions CI/CD
      │
      ├── Build & Test (Maven)
      ├── Docker Build & Push (ECR)
      ├── Terraform: Provision VPC + EKS
      └── Deploy to EKS via Helm + Ansible

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Tech Stack Layer Tools Infrastructure (IaC) Terraform Cloud AWS EKS, VPC, IAM, ECR CI/CD GitHub Actions Containerization Docker Deployment Helm, Kubernetes, Ansible Application Java (Spring MVC, Spring Security, MySQL)

Repositories This project is split across two repos: iac-app13 — Terraform code to provision AWS VPC + EKS cluster app13-action — Application code with GitHub Actions pipeline, Helm charts, Kubernetes manifests, Ansible playbooks

What This Project Does Infrastructure provisioned via Terraform — VPC, subnets, IAM roles, and EKS cluster created and version-controlled. Any infra change goes through Git. CI/CD via GitHub Actions — On every push, the pipeline builds the Java app using Maven, runs tests, builds a Docker image, and pushes to container registry. Deployment via Helm + Ansible — Application is deployed to the EKS cluster using Helm charts. Ansible handles configuration and environment setup. Everything managed through Git — No manual deployments. Infrastructure and application state both tracked in version control.

How to Run Prerequisites AWS CLI configured Terraform v1.6.3+ kubectl Helm 3+ Step 1 — Provision Infrastructure

cd terraform/
terraform init
terraform validate
terraform plan -out planfile
terraform apply -auto-approve -input=false planfile

Step 2 — Configure kubectl

aws eks update-kubeconfig --name <cluster-name> --region <region>

Step 3 — Deploy Application Push to main branch — GitHub Actions pipeline handles the rest automatically.

Key Learnings Managing AWS infrastructure as code using Terraform with remote state Setting up EKS cluster with proper VPC, subnet, and IAM configuration Building end-to-end CI/CD pipeline using GitHub Actions Deploying containerized applications to Kubernetes using Helm Using Ansible for configuration management in a cloud environment

Author Sahil Sonkar — GitHub | LinkedIn