🚀 Multi-Tier Bank Application Deployment

This repository contains an End-to-End Multi-Tier Bank Application built using Java (Spring Boot). The application is containerized, enabling seamless deployment on AWS EC2 instances using tools like Docker, Docker Compose, Jenkins, and more.

📌 Project Highlights

Technology Stack: Java, Spring Boot, MySQL, Docker, Jenkins, AWS
Deployment Options:
- Docker Networking
- Docker Compose
- Jenkins-based CI/CD

🛠 Pre-requisites

Ensure you have the following:

AWS Account
Ubuntu EC2 Instance (Recommended: t2.medium)
Installed Tools:
- Docker

🏗 Deployment Steps

Deployment Using EC2 Instance

SSH into Your EC2 instance

ssh -i "your pem- key" ubuntu@ec2-44-244-168-242.us-west

Create a new Directory:

mkdir dir_name

Go into cd dir_name

Clone the Repository

git clone -b DevOps https://github.com/nkantamani2023/Springboot-BankApp.git

cd Springboot-BankApp

Install Docker

sudo apt update -y

sudo apt install docker.io && docker-compose-v2 -y

sudo usermod -aG docker $USER && newgrp docker

Build the Docker Image

docker build -t bankapp .

Create Docker Network

docker network create bankapp

Run MySQL Container

docker run -itd --name mysql \  
-e MYSQL_ROOT_PASSWORD=${DB_PASSWORD} \
-e MYSQL_DATABASE=${DB_NAME} \  
  --network=bankapp mysql

Run Application Container

docker run -itd --name BankApp \  
  -e SPRING_DATASOURCE_USERNAME=${DB_USER} \  
  -e SPRING_DATASOURCE_URL="jdbc:mysql://mysql:3306/BankDB?useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC" \  
  -e SPRING_DATASOURCE_PASSWORD=${DB_PASSWORD} \  
  --network=bankapp \  
  --health-cmd="curl -f http://localhost:8080/actuator/health || exit 1" \
  --health-interval=30s \
  --restart=unless-stopped \
  --memory="512m" \
  --memory-swap="1g" \
  -p 8080:8080 bankapp

Access the Application Open Port 8080 of your AWS EC2 instance. Navigate to: http://:8080 🎉 Congratulations! Your application is live.

🌐 Future Enhancements CI/CD pipeline with Jenkins (Guide).

Step 1: Go to the AWS EC2 instance and copy your master-node public ip address and paste it in the browser address-bar with port 8080 .

Step 2: Go to AWS your master-node instaces and select security groups and go to add rule 8080 save this. Step 3: Configure your pipeline.

pipeline{
    agent { label 'agent-slave' }
    
    stages{
        stage("Code Clone"){
            steps{
                echo "Code Clone Stage"
                git url: "https://github.com/nkantamani2023/Springboot-BankApp.git", branch: "DevOps"
            }
        }
        stage("Code Build & Test"){
            steps{
                echo "Code Build Stage"
                sh "docker system prune -f"
                sh "docker build -t bankapp ."
            }
        }
        stage("Push To DockerHub"){
            steps{
                withCredentials([usernamePassword(
                    credentialsId:"dockerhub-creds",
                    usernameVariable:"dockerHubUser", 
                    passwordVariable:"dockerHubPass")]){
                sh 'echo $dockerHubPass | docker login -u $dockerHubUser --password-stdin'
                sh "docker image tag bankapp:latest ${env.dockerHubUser}/bankapp:latest"
                sh "docker push ${env.dockerHubUser}/bankapp:latest"
                }
            }
        }
        stage("Deploy"){
            steps{
                script {
                    try {
                        sh "docker compose -f docker-compose.yml down"
                        sh "docker compose -f docker-compose.yml up -d --build"
                        sh "timeout 300 bash -c 'while ! curl -s http://localhost:8080/actuator/health; do sleep 5; done'"
                    } catch (Exception e) {
                        sh "docker compose -f docker-compose.yml down"
                        sh "docker compose -f docker-compose.yml up -d --build --force-recreate previous-version"
                        error "Deployment failed: ${e.message}"
                    }
                }
            }
        }
    }
}

Step 4: Navigate to bank app dashboard and click on Build Now button.

Step 5: Your Pipeline has been created

👨‍💻 Author: Kantamani