Setup Commands

Install the Web Server, Database, and Tools

apt install nginx mariadb-server python3-certbot-nginx curl git

Set up domain and DNS records

Register your domain, create an A record and AAAA record for @ with the IPv4 and IPv6 of your VM

Get an SSL Certificate for the Web Server

certbot

Get Software needed to run the Application

curl -fsSL https://deb.nodesource.com/setup_22.x | bash
apt install nodejs
npm i -g yarn
yarn

Set up the Database

mariadb

CREATE USER app@localhost IDENTIFIED BY 'secret';
CREATE DATABASE counterdb;
GRANT ALL PRIVILEGES ON counterdb.* TO app@localhost;
FLUSH PRIVILEGES;

mariadb counterdb < database.sql

Use Systemd to run the Application

useradd -rUM myapp
cp myapp.service /etc/systemd/system/myapp.service
systemctl daemon-reload
systemctl reenable myapp
systemctl restart myapp
systemctl status myapp

Use Nginx as a Reverse Proxy

In the file /etc/nginx/sites-enabled/default find the server block with SSL configuration (the one with listen 443 ssl)

In that server block, there should only be one location block and it should contain the following

	location / {
		proxy_pass http://localhost:3000;
		include proxy_params;
	}

To edit the file, use:

nano /etc/nginx/sites-enabled/default