Add https to apache on Ubuntu 16

Install

On Ubuntu systems, the Certbot team maintains a PPA. Once you add it to your list of repositories all you'll need to do is apt-get the following packages.

$ sudo add-apt-repository ppa:certbot/certbot
$ sudo apt-get update
$ sudo apt-get install python-certbot-apache 

Get Started

Certbot has a fairly solid beta-quality Apache plugin, which is supported on many platforms, and automates both obtaining and installing certs:

$ certbot --apache

If you're feeling more conservative and would like to make the changes to your Apache configuration by hand, you can use the certonly subcommand:

$ certbot --apache certonly

To learn more about how to use Certbot read certbot documentation.

Automating renewal

The Certbot packages on your system come with a cron job that will renew your certificates automatically before they expire. Since Let's Encrypt certificates last for 90 days, it's highly advisable to take advantage of this feature. You can test automatic renewal for your certificates by running this command:

certbot renew --dry-run

More detailed information and options about renewal can be found in the full documentation.