I setup an SSL-enabled Apache server on Lightsail today in 15 minutes. I would have spent less time on it if I had gone directly to Let’s Encrypt, but I’ll share the steps in case anyone wants a quick-and-easy SSL-enabled web server. I’m using Ubuntu 16.04.3 LTS so… you’re mileage may vary.

1. Add the certbot repo:

   sudo add-apt-repository ppa:certbot/certbot

2. Update:

   sudo apt-get update

3. Install the certbot:

   sudo apt-get install python-certbot-apache

4. Modify your site conf for SSL:

   sudo vi /etc/apache2/sites-enabled/000.example.conf

   ..
   <IfModule mod_ssl.c>
   <VirtualHost *:443>
   ServerAdmin webmaster@example.com
   ServerName example.com
   ServerAlias www.example.com
   ..

5. Run the certbot:

   sudo certbot --apache -d example.com -d www.example.com

After that you agree to some terms, answer some questions (my shortcut for this is A, N, Enter, 2), and BOOM! You have an SSL-enabled web server too! You might not even need steps 2 and 4 but I did ’em anyway and it didn’t hurt.