How to Deploy a MERN Stack application to AWS Amazon EC2

HHow to Deploy a MERN Stack application on AWS server and we are going to learn to Deploy react application to aws EC2 and set up a web server on the aws.

How to Deploy a MERN Stack application to AWS Amazon EC2

In this tutorial we're going to set up a production-ready web server from scratch on the Amazon EC2 (Elastic Compute Cloud) service, then deploy a custom MERN Stack application to it that supports user registration and authentication.

What is a MERN Stack App, and how does it work?

A MERN Stack framework is made up of a React front-end app that connects to a Node.js + Express + MongoDB backend API, hence the name MERN Stack (Mongo, Express, React, Node). and we can also use  MEAN Stack, which uses an Angular front-end, and the MEVN Stack, which uses Vue.js, which are two other variants of the stack and all are full-stack development.

Scope in this tutorial blog.

This tutorial will cover setting up the server on AWS Amazon EC2, as well as deploying and configuring the MERN stack app's front-end and back-end components to function together. Check out the following tutorials blog for more details on the React app and Node.js API used in this post:

  1. Create a new Ubuntu server on AWS EC2
  2. Connect to Ubuntu EC2 instance via SSH
  3. Cloning the projects in the ubuntu os in amazon ec2
  4. Setup server with Node.js + MongoDB in amazon ec2 ubuntu server
  5. Setup and install all the packages in the clone project in ec2
  6. Change proxy server in server.js in ubuntu server
  7. install pm2 and run the pm2 in both server and client in AWS ec2
  8. Test the MERN Stack app in a browser

STEP 1: Create a new Ubuntu server on AWS EC2

Before doing anything we need a server that we can work on, follow these steps to spin up a new Ubuntu 18.04 server instance on AWS EC2.

1. Sign in to the AWS Management Console at If you don't have an account yet click the "Create a Free Account" button and follow the prompts.

sign up page aws ec2

2. Go to the EC2 Service section.

aws services in aws ec2

3. Click the "Launch Instance" button.

Launch Instance in aws ec2

4. Choose AMI - Check the "Free tier only" checkbox, enter "Ubuntu" in the search box, and press enter, then select the "Ubuntu Server 18.04" Amazon Machine Image (AMI).

ubuntu server in ec2

5. Choose Instance Type - Select the "t2.micro" (Free tier eligible) instance type and click "Configure Security Group" in the top menu.

Instance Type in aws instance type

6.Configure Security Group - Add a new rule to allow HTTP traffic then click "Review and Launch".

Configure Security Group in aws ec2

7. Review - Click Launch

review and launch in aws server

8. Select "Create a new key pair", enter a name for the key pair (e.g. "my-aws-key"), and click "Download Key Pair" to download the private key, you will use this to connect to the server via SSH.

keypair value in amazon ec2

9. Click "Launch Instances", then scroll to the bottom of the page and click "View Instances" to see details of the new Ubuntu EC2 instance that is launching.

instance lanuched aws Server

STEP 2: Connect to Ubuntu EC2 Instance via SSH

Once the EC2 instance reaches a running state you can connect to it via SSH using the private key downloaded in the previous step.

  1. Open a terminal window and update the permissions of the private key file with the command $ chmod 400 <path-to-key-file> e.g. $ chmod 400 ~/Downloads/my-aws-key.pem, the key must not be publicly viewable for SSH to work.
  2. Copy the "Public DNS (IPv4)" property from the instance description tab in the AWS Console, then connect to the instance from the terminal window with the command ssh -i <path-to-key-file> ubuntu@<domain name> e.g. $ ssh -i ~/Downloads/my-aws-key.pem
  3. Enter yes to the prompt "Are you sure you want to continue connecting (yes/no)?" to add the URL to your list of known hosts.

1. open in a window where you contained the private key value.

keyvalue pair in aws ec2

2. Connect to instance - check the instance and click on connect button in the top left where you find the ssh connection to ubuntu os.

ssh connect in aws iot

3. open git bash in the folder and connect to AWS ubuntu using ssh.

gitbash open to connect aws ec2


STEP 3: Cloning the projects in the ubuntu os in amazon ec2.

Clone the Node.js + MongoDB API project into the ubuntu directory with the command 

$ sudo git clone

Commands should follow and type this command in ubuntu amazon ec2

$ sudo apt-get update

$ sudo git clone <project_name>

STEP 4: Setup server with Node.js + MongoDB in amazon ec2 ubuntu server.

Follow these steps to set up the Node.js API on the server.

$ sudo apt install nodejs

$ sudo apt install npm

$ curl -fsSL | sudo apt-key add -

$ echo "deb [ arch=amd64,arm64 ] bionic/mongodb-org/4.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-4.4.list

$ sudo apt update

$ sudo apt install mongodb-org

$ sudo systemctl start mongod.service

start mongo db in amazon ec2

STEP 5: Setup and install all the packages in the clone project in ec2.

1. Install packages on server-side 

$ cd <repo name>

$ sudo npm install

2. install packages on the client-side

$ cd <client-folder>

$ sudo npm install

$ sudo npm run build

If you face any error in client permission denied error 

$ sudo chmod +x node_modules/.bin/react-scripts 

and start the build again sudo npm start 

permission error in aws server

STEP 6: Change proxy server in server.js in the ubuntu server.

$ cd <client_foldername>

$ sudo nano package.json 

change proxy server URL into and click ctrl+x - Y - enter

change proxy in amazon ec2 aws

Step7: install pm2 and run the pm2 in both server and client in AWS ec2

PM2 is a daemon process manager that will help you manage and keep your application online. Getting started with PM2 is straightforward, it is offered as a simple and intuitive CLI, installable via NPM.

$ cd ~

$ sudo apt-get update
$ curl -o- | bash

$ sudo apt install nodejs

$ source ~/.profile

$ nvm install default

$ nvm ls-remote

$ nvm install 16.2.0

$ sudo npm install -g pm2

Run pm2 in server

$ cd <repo_name>

$ pm2 start server.js

Run pm2 in client

$ cd <client_folder>

$ pm2 start --name <repo_name> npm -- start

Managing application state in pm2 and this is optional is simple here are the commands:

$ sudo pm2 restart app_name
$ sudo pm2 reload app_name
$ sudo pm2 stop app_name
$ sudo pm2 delete app_name

Step8: Test your new MERN Stack application running on AWS

  1. Enter the hostname of your AWS EC2 instance in a browser to access and test your new MERN stack application.
  2. The hostname is the "Public DNS (IPv4)" property located on the instance description tab in the AWS Console.
  3. open the public ip in the instance and with port number http:// :3000 and you will get.

open the web with public ip

The page will open with the public IP and MongoDB and reactjs is connected with each other with the help of pm2, and the MERN application works good in the public IP and link this public IP to the domain name