🚀 Simple Login page(JWT Authentication) — Spring Boot + MySQL + Docker + AWS EC2

##Overview This project is a simple Flipkart-style e-commerce backend built using Spring Boot and MySQL, containerized using Docker, and deployed on AWS EC2.
The backend handles authentication using JWT and basic CRUD operations for users, products, and carts.

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🧱 Tech Stack

• Java 17
• Spring Boot
• MySQL
• Docker
• AWS EC2
• Maven

⚙️ Step 1: Build Spring Boot Application

Open project in Spring Tool Suite (STS) and verify it runs locally.
Once everything works fine, create the .jar file.

Command to build JAR --> $mvn clean install
After build, the JAR will be created inside: /target
You can test it locally: java -jar target/flipkart-0.0.1-SNAPSHOT.jar ( will start on port 9099)

⚙️Step 2: Install Docker on EC2

$yum update -y
$yum install docker -y

Verify installation: 
    $docker --version

$systemctl start docker  (to start docker)

⚙️Step 3: Using docker pulled required images

 1) $docker pull mysql:8.0
 2) $docker pull openjdk:17-jdk-slim 

⚙️Step 4: created N/W

  $docker network create mynet

⚙️Step 5: Run MySQL Container

 $docker run -d --name mymysql \
    --network mynet \
    -e MYSQL_ROOT_PASSWORD=Pass@1234 \
    -e MYSQL_DATABASE=flipkart \
    -v mysql_data:/var/lib/mysql \
    mysql:8.0

⚙️Step 6: Import Existing Database

  First exported data form my local mysql workbench then imported using below cmd:  
         $docker exec -i mymysql mysql -u root -pPass@1234 flipkart < /tmp/flipkart_customer.sql
         $docker exec -i mymysql mysql -u root -pPass@1234 flipkart < /tmp/seller_customer.sql

⚙️Step 7: Configure AWS EC2 Security Group

Type	Port Range	Source
HTTP	80	0.0.0.0/0
Custom TCP	9099	0.0.0.0/0

⚙️Step 8: Start container with JDK image:

 1> Previously we builded jar that jar take here in ec2 machine in current directoy 
       $docker run -d --name myapp --network mynet openjdk:17-jdk-slim /bin/bash
        here one window will appear give cmd $exit and give below cmd

        $docker cp flipkart-0.0.1-SNAPSHOT.jar myapp:/tmp/    ( copy jar inside container) 

 2> now we have taken this jar inside container now go inside container using below cmd 
    $docker exec -it b0dcc6887c70 /bin/bash
    $cd /tmp
    $java -jar target/flipkart-0.0.1-SNAPSHOT.jar --spring.datasource.url=jdbc:mysql://43.204.174.76:3306/flipkart

    now your app started !


    NOTE : In my case app is accessible on http://43.204.174.76:9099/login