TASK-1 DAY-1

Node.js CI/CD Pipeline Demo using GitHub Actions & Docker

This is a simple Node.js web application built using Express.js.
It demonstrates how to automate the process of building and deploying Docker containers using GitHub Actions CI/CD pipeline.

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Tools Used

• Node.js with Express
• Docker for containerization
• GitHub Actions for CI/CD automation
• DockerHub to host built images

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What I Did

• Created a simple Express.js server

• Wrote a Dockerfile to containerize the app

• Set up .github/workflows/main.yml for CI/CD pipeline

• Stored DockerHub credentials in GitHub Secrets

• Changed the branch name into master into main

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• On every push to the master branch:

• GitHub Actions builds the Docker image

• Tags it with the branch name

• Pushes it to DockerHub automatically

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GitHub Secrets Required

• DOCKER_USERNAME – Your DockerHub username
• DOCKER_PASSWORD – Your DockerHub password or access token

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Run Locally Using Docker

You can pull the image from DockerHub and run it:

Run the App via Docker

Pull the Docker image and run the container:

docker pull srilakshmiyannam/nodejs-demo-app:master
docker run -p 3000:3000 srilakshmiyannam/nodejs-demo-app:master