AWS-NodeJS-Deployment

We worked on a Full stack Project called XMeme and Deployed our Backend on AWS.

Kudos to desert3agle for making this possible.

Instance Creation

• Create an EC-2 Instance in AWS using Ubuntu 18.04.
• Add Ports of Type SSH , http and https.
• Also Add Custom Ports of the Backend Localhost (Mine is 8080 and 8081).
• Create a new (.pem) file of your instance.

Elastic IP Address

• The Purpose of Creating this is that everytime we reboot our Instance we are provided with a New Public IP address for our Site.
• So we create an Elastic IP and Assign it to our Instance Running.

Start the Server

• In the path where we've downloaded the (.pem) file , open Terminal or Bash

chmod 400 <fileName>.pem
ssh -i "<fileName>.pem" ubuntu@ec<Elastic IP>.us-east-2.compute.amazonaws.com

• Now you should be in the AWS Ubuntu Terminal.

Clone Your NodeJS Project

git clone <link>.git
cd <Cloned FolderName>

• After this you have to install all the Dependencies From your package.json file and mongoDB.
• To do that type

#install node 12.xx
curl -sL https://deb.nodesource.com/setup_12.x | sudo -E bash -
sudo apt-get install -y nodejs

#install mongoDB
wget -qO - https://www.mongodb.org/static/pgp/server-4.4.asc | sudo apt-key add -
echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/4.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-4.4.list
sudo apt-get update
sudo apt-get install -y mongodb-org
sudo systemctl start mongod

• We also need to restart mongod when the server is rebooted

sudo systemctl status mongod
sudo systemctl enable mongod

Set Up PM2 Process Manager

sudo npm i pm2 -g
pm2 start <FileName>.js (usually server.js)

# Other pm2 commands
pm2 show app
pm2 status
pm2 restart app
pm2 stop app
pm2 logs (Show log stream)
pm2 flush (Clear logs)

# To make sure app starts when reboot
pm2 startup ubuntu

• The server should be up and running to try to access it through your IP and Port.

Setup UFU Firewall

sudo ufw enable
sudo ufw allow ssh (Port 22)
sudo ufw allow http (Port 80)
sudo ufw allow https (Port 443)
sudo ufw status

Install NGINX and Configure

sudo apt install nginx
sudo nano /etc/nginx/sites-available/default

• Now delete all the text and type the following.
• Be sure to edit the custom ports and endpoints.

server {
        root /var/www/html;

        index index.html index.htm index.nginx-debian.html;

        server_name your_domain www.your_domain; # if you dont have a domain name then edit this line as (server_name _;)

        #For root directory and My Custom port is 8081 here
        location / {
        proxy_pass http://localhost:8081; #whatever port your app runs on
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
        }

        #For End Point memes and port 8081
        location =/memes {
        proxy_pass http://localhost:8081; #whatever port your app runs on
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
        }
        
        #For End Point swagger-ui and port 8080
        location =/swagger-ui/ {
        proxy_pass http://localhost:8080; #whatever port your app ru$
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
	      proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
        }
}

• Press ctrl + x and then y and then press enter.

# Check NGINX config
sudo nginx -t

# Restart NGINX
sudo service nginx restart

• Everytime you edit your NGINX file you need to restart it.

Your http deployment should be ready.

For https you have to have a Domain name

Name.com

• If you have a student Github account then getting a free domain should be easy.
• After obtaining the domain , go to its DNS setting and Create two A Records.
• In the both records set the IP to your Elastic IP and set you domain name as following.
• In the first record <SubDomain>.<Your_Domain_Name>.
• In the second record *.<SubDomain>.<Your_Domain_Name>.

Example

• My Domain name is mohitjaiswal.studio.
• My SubDomain is xmeme.
• So the name of two A records are xmeme.mohitjaiswal.studio and *.xmeme.mohitjaiswal.studio.

Edit Server Name in NGINX

• Now that the Domain Name is Created we just have to edit the server name at

sudo nano /etc/nginx/sites-available/default

• Edit the Line

server name your_domain www.your_domain;

• Press ctrl + x and then y and then press enter.
• Restart NGINX with

sudo nginx -t
sudo service nginx restart

Add SSL with LetsEncrypt

sudo add-apt-repository ppa:certbot/certbot
sudo apt-get update
sudo apt-get install python-certbot-nginx
sudo certbot --nginx -d yourdomain -d www.yourdomain

# Only valid for 90 days, test the renewal process with
certbot renew --dry-run

Congratulations On Your https Deployment !