How to deploy complete NodeJS Web Application to Cloud. e.g. DigitalOcean

Update the server

---

• sudo apt update
• sudo apt upgrade
• cd /home

Clone Project From Github

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git clone https://github.com/ahmaat19/<repository_name>.git

If it necessary to switch branches do the following:

• cd /<repository_name>
• git switch <branch_name>

Install Nodejs through NVM

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• cd /

curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v<latest_version>/install.sh | bash

• sudo reboot
• nvm install <node_version>

Install NGINX

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• sudo apt update
• sudo apt install nginx
• sudo ufw app list
• sudo ufw allow 'Nginx HTTP'
• systemctl status nginx
• sudo systemctl restart nginx

Config The nginx.conf

---

• sudo nano /etc/nginx/sites-available/<your_domain>

copy and paste the following:

server {
    #listen       80;
    server_name  mamosbusiness.com www.mamosbusiness.com;

    access_log /root/server_logs/host.access.log;


    location / {
        proxy_set_header   X-Forwarded-For $remote_addr;
        proxy_set_header   Host $http_host;
        proxy_pass         http://127.0.0.1:3000;
        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;

    }
    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }

    server_tokens off;

    location ~ /\.ht {
        deny  all;
    }

}

sudo ln -s /etc/nginx/sites-available/<your_domain> /etc/nginx/sites-enabled/

Install MONGO Database

---

• sudo apt-get install gnupg

curl -fsSL https://pgp.mongodb.com/server-6.0.asc | \
   sudo gpg -o /usr/share/keyrings/mongodb-server-6.0.gpg \
   --dearmor

• echo "deb [ arch=amd64,arm64 signed-by=/usr/share/keyrings/mongodb-server-6.0.gpg ] https://repo.mongodb.org/apt/ubuntu jammy/mongodb-org/6.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-6.0.list
• sudo apt-get update
• sudo apt-get install -y mongodb-org

echo "mongodb-org hold" | sudo dpkg --set-selections
echo "mongodb-org-database hold" | sudo dpkg --set-selections
echo "mongodb-org-server hold" | sudo dpkg --set-selections
echo "mongodb-mongosh hold" | sudo dpkg --set-selections
echo "mongodb-org-mongos hold" | sudo dpkg --set-selections
echo "mongodb-org-tools hold" | sudo dpkg --set-selections

• sudo systemctl start mongod.service
• sudo systemctl status mongod
• sudo systemctl enable mongod

Install PM2 to run nodejs in the background

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npm install -g pm2

run server.js

pm2 start server.js

run if it's reactjs

pm2 start --name <app_name> npm -- start

pm2 unstartup

pm2 save

Installing Certbot /SSL

---

sudo apt install certbot python3-certbot-nginx

add this line

sudo nano /etc/nginx/sites-available/<domain_name>

server_name <example.com> <www.example.com>;

confirm

sudo nginx -t sudo systemctl reload nginx

Certbot can now find the correct server block and update it automatically.

Allowing HTTPS Through the Firewall

sudo ufw status
sudo ufw allow 'Nginx Full'
sudo ufw delete allow 'Nginx HTTP'

Obtaining an SSL Certificate

sudo certbot --nginx -d <example.com> -d <www.example.com>

Verifying Certbot Auto-Renewal

sudo systemctl status certbot.timer

To test the renewal process, you can do a dry run with certbot:

sudo certbot renew --dry-run