Deploy Flask on Debian

$ apt update && apt upgrade -y  # Update packages list and the packages

$ apt install sudo  # Install 'sudo'

$ adduser coolguy  # Create a new user

$ visudo  # Add new user to the sudo users

# Disconnect root session
# SSH using the new user

$ sudo apt install mariadb-server mariadb-client mariadb-common libmariadb-dev python3 python3-pip python3-dev python3-virtualenv nginx-full git

$ sudo mysql_secure_installation  # Setup MySQL/MariaDB Server

$ sudo mysql  # Open MySQL Command-line shell

# MySQL Shell:

$ CREATE DATABASE rest_dir;  # Create a Database

$ CREATE USER 'rest_dir'@'localhost' IDENTIFIED BY 'somewhat-secure';  # Create a user

$ GRANT ALL PRIVILEGES ON rest_dir.* TO 'rest_dir'@'localhost';  # Grant privileges to the user on the specific database.

$ FLUSH PRIVILEGES;  # Reload privileges table

# Exit MySQL Shell using 'CTRL + C' or 'CTRL + D'

$ git clone https://github.com/DarkSuniuM/ReST-Directory.git && cd ReST-Directory

$ python3 -m virtualenv .venv --python=python3

$ source .venv/bin/activate

$ pip install -r requirements.txt

$ cp .env.example .env && nano .env

$ pip install gunicorn

$ gunicorn -w 2 -b 0.0.0.0:5000 app:app