🛠Jenkins CI/CD Integration
📌 Overview
This project also includes a Jenkins-based CI/CD pipeline that automates the process of building a Docker image from the Node.js app and pushing it to Docker Hub whenever new changes are pushed to GitHub.
🚀 Jenkins Setup Steps
✅ Prerequisites
Jenkins installed (Currently installed on local system)
Docker installed on the Jenkins host
Docker Hub account and access credentials
GitHub repository with this project
🧰 Jenkins Configuration Steps
Install Jenkins Plugins
Create New Pipeline Job
Configure GitHub Repository
In the job config:
Definition: Pipeline script from SCM
SCM: Git
Repository URL: https://github.com/jaspreet237/nodejs-demo-app-jenkins.git
Branch: main
Configure Docker Hub Credentials
🔄 How Jenkins Works in This Project
When code is committed and pushed to GitHub:
Jenkins pulls the latest code from the GitHub repo
Builds a new Docker image using the Dockerfile
Pushes the image to Docker Hub
Pipeline status can be viewed in Jenkins Dashboard
✅ Testing the Pipeline
Make a change in app.js (e.g., change the text message)
Triggers the Jenkins pipeline
New image pushed to Docker Hub
Pull new image and run locally:
✅ Screeshots for reference
