CI/CD using GitHub Actions for dockerized java application

The project includes GitHub Actions workflow for:

DEV: Deploys on develop branch push

TEST: Deploys after successful DEV deployment

STG: Deploys on master branch (bastion host)

Complete Docker containerization solution for Java CRUD Frontend Application with PostgreSQL database, supporting both development and production environments.

Automated Docker image building, pushing to Amazon Elastic Container Registry (ECR), and deployment to EC2 instances via GitHub Actions CI/CD pipeline.

Complete Kubernetes deployment solution for Java CRUD Frontend Application with PostgreSQL database, including manifests, scaling, and production-ready configurations.