Setup Node.js + MongoDB + PM2 Production Server on Ubuntu 20.04

production-nodejs-mongodb-server-setup-ubuntu-20.04.sh

#!/usr/bin/env bash

echo "
----------------------
  NODE & NPM
----------------------
"

# add nodejs LTS ppa (personal package archive) from nodesource
curl -fsSL https://deb.nodesource.com/setup_lts.x | sudo -E bash -

# install nodejs and npm
sudo apt-get install -y nodejs

# install yarn
curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -
echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list
sudo apt-get update && sudo apt-get install --no-install-recommends -y yarn

# install build essentials
sudo apt-get install -y build-essential wget gnupg


echo "
----------------------
  MONGODB
----------------------
"

# import mongodb 7.0 public gpg key
curl -fsSL https://www.mongodb.org/static/pgp/server-7.0.asc | \
   sudo gpg -o /usr/share/keyrings/mongodb-server-7.0.gpg \
   --dearmor
apt-key list

# create the /etc/apt/sources.list.d/mongodb-org-7.0.list file for mongodb
echo "deb [ arch=amd64,arm64 signed-by=/usr/share/keyrings/mongodb-server-7.0.gpg ] https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/7.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-7.0.list

# reload local package database
sudo apt-get update

# install the latest version of mongodb
sudo apt-get install -y mongodb-org

# start mongodb
sudo systemctl start mongod

# set mongodb to start automatically on system startup
sudo systemctl enable mongod

# status mongodb
# sudo systemctl status mongod

echo "
----------------------
  PM2
----------------------
"

# install pm2 with npm
sudo npm install -g pm2

# set pm2 to start automatically on system startup
sudo pm2 startup systemd


echo "
----------------------
  NGINX
----------------------
"

# install nginx
sudo apt-get install -y nginx


echo "
----------------------
  UFW (FIREWALL)
----------------------
"

# allow ssh connections through firewall
sudo ufw allow OpenSSH

# allow http & https through firewall
sudo ufw allow 'Nginx Full'

# enable firewall
sudo ufw --force enable