sudo apt update
sudo apt install python3 python3-dev python3-venv libaugeas-dev gcc

# Set up a Python virtual environment 
sudo python3 -m venv /opt/certbot/
sudo /opt/certbot/bin/pip install --upgrade pip

# Install certbot
sudo /opt/certbot/bin/pip install certbot certbot-nginx

sudo certbot --nginx

# If you're feeling more conservative and would like to make the changes to your nginx configuration by hand, run this command.
sudo certbot certonly --nginx

# Set up automatic renewal 
echo "0 0,12 * * * root /opt/certbot/bin/python -c 'import random; import time; time.sleep(random.random() * 3600)' && sudo certbot renew -q" | sudo tee -a /etc/crontab > /dev/null

# [Monthly] Upgrade certbot 
sudo /opt/certbot/bin/pip install --upgrade certbot certbot-nginx

# If this step leads to errors, run sudo rm -rf /opt/certbot and repeat all installation instructions.