Project : Jenkins Declarative Pipeline: From Code to Production - Effortless Web App Deployment

Project Description: Automate the deployment process of a web application using Jenkins and its declarative syntax. This pipeline includes stages for building, testing, and deploying to a staging environment. It also performs acceptance tests and, upon success, deploys to production. Easy and efficient CI/CD from code to production.

Prerequisite:

1. EC2 Instance (Ubuntu) on AWS.

1. Jenkins installed on the EC2 Instance.

If you encounter any issues during the installation of Jenkins, you can refer to the following website for guidance: https://www.jenkins.io/doc/book/installing/linux/

1. Docker and Docker-compose installed on the EC2 Instance.

If Docker and Docker-compose are not already installed, you can do so by executing the following command:

sudo apt-get install docker.io docker-compose

Add your Jenkins user to the Docker group by running the following commands:

sudo usermod -aG docker jenkins
sudo service jenkins restart

Now Let's get started.

Step - 1 : Goto Jenkins dashboard and click on "New Item "

Step - 2 : Name your project and choose the pipeline option.

Step - 3 : Use the provided pipeline script to define stages for checkout, testing, building, and deployment.

pipeline {
    agent any

    stages {
        stage('checkout') {
            steps {
                git branch : 'main',url:'https://github.com/patelajay745/react_django_demo_app.git'
            }
        }
        stage('Test') {
            steps {
                echo 'testing'
             }
        }
        stage('Build') {
            steps {
                sh 'docker build --no-cache -t demo_app .'
             }
        }
        stage('Deploy') {
            steps {
                sh "docker run -p 8001:8001 -d demo_app"
             }
        }
    }
}

Here I have used this repo for the project : https://github.com/patelajay745/react_django_demo_app

Step - 4 : Save the pipeline configuration.

Step - 5 : Click "Build Now" to initiate the pipeline and monitor progress in "Stage View."

Once all stages succeed, access your app at :

http://Your-public-IP:8001/

Congratulations! You've successfully implemented Jenkins Declarative CI/CD pipeline. If you have any questions or face any issues, feel free to ask in the comments. Happy Deploying!