Scenario Overview

You want to deploy a Spring Boot JAR application with:

• Secure HTTPS access
• Reverse proxy (NGINX)
• Containerized environment (Docker + Docker Compose)
• Running on a Linux VM inside VMware
• Cloud-ready deployment

1. Infrastructure Setup

1.1 VMware

• Provision a Linux VM (Ubuntu 22.04 recommended)
• Recommended resources: 2 CPU, 4GB RAM, 20GB disk
• Network: NAT or Bridged (public IP if needed)

1.2 Linux Preparation

sudo apt update     
sudo apt upgrade -y
sudo apt install -y docker.io docker-compose openjdk-17-jdk nginx certbot python3-certbot-nginx
sudo systemctl enable docker
sudo systemctl start docker

2. Dockerize Spring Boot Application

2.1 Create Dockerfile

Place this in the Spring Boot project root:

FROM openjdk:17-jdk-alpine
VOLUME /tmp
ARG JAR_FILE=target/*.jar
COPY ${JAR_FILE} app.jar
ENTRYPOINT ["java","-jar","/app.jar"]