Hosting Node.js Application on AWS EC2 Instances

Introduction

• This video demonstrates hosting a Node.js application on AWS EC2.
• Using a sample code contributed by a GitHub open-source contributor, Chance.
• Made modifications to the original code as per requirements.
• Useful for testing simple deployments on cloud environments.
• README notes provided for steps.

Setting Up EC2 Instance

• Created an EC2 instance named node.js application; platform: Ubuntu.
• Separate video available on creating an EC2 instance.
• Connection established using EC2 instance connect method.
• Commands to switch to super user: sudo su -

Application Code

• Creates an HTTP server listening on port 80.
• Expected output: 'monk in Cloud' when accessed via public IP in browser.

Steps to Host Application

Step 1: Install Node.js and npm using NVM

• Become super user.
• Run the following command: curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.38.0/install.sh | bash
• Activate NVM: source ~/.nvm/nvm.sh
• Install the latest version of Node.js: nvm install node
• Verify installations: node -v npm -v

Step 2: Install Git

• Update the system: sudo apt-get update -y
• Install Git: sudo apt-get install git -y
• Verify Git version: git --version

Step 3: Clone Repository

• Clone required repository: git clone <repository-url>
• Navigate to cloned directory: cd node.js-on-ec2

Step 4: Install Dependencies

• Install npm packages: npm install

Step 5: Start Application

• Start the Node.js application: npm start
• Verify it’s running on port 80. Access via public IP of EC2. Expected output: 'monk in Cloud'

Domain Mapping with Route 53

• Domain purchased via Freenom, example: a monk in cloud.ml.
• Create a hosted zone in Route 53.
• Add name server entries from Route 53 to domain registrar (Freenom).
• Create A Record:
  • Points to EC2 public IP.
• Create CNAME Record:
  • Alias to public IP.
• Verify domain in browser.

Conclusion

• Successfully hosted Node.js app on EC2.
• Additional resources: Route 53 for domain mapping.
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