Node.js REST API Deployment on AWS EC2 with GitHub Actions CI/CD Pipeline

This repository demonstrates a streamlined approach to deploying a Node.js REST API on an AWS EC2 instance using GitHub Actions for continuous integration and continuous deployment (CI/CD).

Overview

In this project, we utilize GitHub Actions workflows to automate the CI/CD pipeline for deploying changes to our Node.js application on an EC2 instance. The workflow consists of:

• Continuous Integration (CI): Automatically building and testing the application on each push to the main branch.
• Continuous Deployment (CD): Automatically deploying changes to the EC2 instance upon successful completion of CI.

Setup Instructions

Follow these steps to set up the deployment pipeline for your Node.js REST API on AWS EC2:

1. Create an EC2 Instance:

   • Create a new EC2 instance in your AWS account or use an existing one.
   • Generate or use an existing SSH key pair for accessing the instance.

2. Git Repository Setup:

   • Create a new Git repository and push your Node.js code to it.

3. GitHub Actions Setup:

   • Navigate to your repository settings on GitHub and select Actions.
   • Add a self-hosted runner and follow the setup instructions.

4. Environment Setup for GitHub Actions:

   • Create a .env file with your environment variables and add them as secrets in your GitHub repository settings.

5. CI/CD Workflows:

   • Define CI/CD workflows in the .github/workflows directory.
   • Customize workflows to suit your project requirements.

6. Environment Setup in EC2 Instance:

   • Install Node.js and Nginx on your EC2 instance.
   • Configure Nginx as a reverse proxy for your Node.js application.
   • Install PM2 to manage your Node.js process.

Workflow Explanation

• CI Process: On each push to the main branch, the workflow executes CI tasks such as checking out code, setting up the Node.js environment, installing dependencies, and running tests (if applicable).
• CD Process: Upon successful CI, the workflow triggers CD tasks including SSH into the EC2 instance, pulling the latest changes, restarting the Node.js application, and verifying deployment.

Directory Structure

• src/: Contains the source code for the Node.js application.
• .github/workflows/: Contains CI/CD workflow configuration files.
• .env: Stores environment variables for the application.
• server.js: Entry point for the Node.js application.
• package.json: Dependency configuration for npm.

Usage

1. Clone the repository:

   git clone https://github.com/HGSChandeepa/nodejs-rest-api-EC2

2. Customize the Node.js application code in the server.js file according to your requirements.

3. Push changes to the main branch. GitHub Actions will automatically trigger the CI/CD pipeline.

Contributions

Contributions to improve this CI/CD setup or add additional features are welcome! Feel free to submit pull requests or open issues.

License

This project is licensed under the MIT License.