BYTEBOOK | Java Labs

Deployment Guide: Concise steps to provision Postgres, Java 23 and Angular on a bare Ubuntu instance.

01. System & Docker Install Login as root, update OS, and install Docker Engine:
ssh root@vps_ip
apt update && apt upgrade -y
curl -fsSL get.docker.com | sh

02. Database (Postgres 16) Setup workspace and launch the DB container:
mkdir -p /app/stack && cd /app/stack
nano docker-compose.yml
docker compose up -d

03. Java 23 (JDK) Install the latest Oracle OpenJDK 23:
wget https://download.oracle.com/java/23/latest/jdk-23_linux-x64_bin.deb
dpkg -i jdk-23_linux-x64_bin.deb

04. Node.js & Angular CLI Install Node 20.x and Angular global tooling:
curl -fsSL https://deb.nodesource.com/setup_20.x | bash -
apt install -y nodejs
npm install -g @angular/cli

MODULE_OVERVIEW

SOURCE_CODE_PREVIEW

HelloController.java

@RestController
public class HelloController {
    
    @GetMapping("/api/status")
    public String getStatus() {
        return "{\"status\": \"BYTEBOOK_SYSTEM_ONLINE\", \"version\": \"1.0\"}";
    }
}

### SPRING BOOT ARCHITECTURE