Add a redirect for a domain name, over to a new url in Nginx w/ LetsEncrypt ssl cert

add_nginx_redirect.sh

#!/bin/bash

FROM_DOMAIN=$1
TO_URL=$2


echo "
server {
  listen         80;
  server_name    $FROM_DOMAIN;
  return         301 $TO_URL;
}

server {
  listen              443 ssl http2;
  listen              [::]:443 ssl http2;

  server_name         $FROM_DOMAIN;

  ssl_certificate     /etc/letsencrypt/live/$FROM_DOMAIN/fullchain.pem;
  ssl_certificate_key /etc/letsencrypt/live/$FROM_DOMAIN/privkey.pem;
  ssl_protocols       TLSv1 TLSv1.1 TLSv1.2;
  ssl_ciphers         HIGH:!aNULL:!MD5;

  return              301 $TO_URL;
}
" > ~/$FROM_DOMAIN.conf

sudo mv ~/$FROM_DOMAIN.conf /etc/nginx/sites-available/$FROM_DOMAIN
sudo rm /etc/nginx/sites-enabled/$FROM_DOMAIN
sudo ln -s /etc/nginx/sites-available/$FROM_DOMAIN /etc/nginx/sites-enabled/$FROM_DOMAIN
sudo service nginx stop
sudo certbot certonly --standalone -d $FROM_DOMAIN
sudo service nginx start