This project contains allows the automation of Let's Encrpyt certificates renewal through systemd.

In order to use the letsencrypt-systemd package you must have previously installed Let's Encrypt in your system and have already set up a website, which you wish to secure with HTTPS connections. Let us say that you have a website in the domain www.mysite.org that you wish to secure with Let's Encrypt. This can be easily done as the following (see, for instance, these instructions):

sudo aptitude install certbot python3-certbot-apache
sudo certbot --apache -d www.mysite.com

(The exemple above assumes an Apache server, but certbot has also an NGINX plugin.)

The certificate issued by Let's Encrypt has limited validity in time and must be renewed regularly. Here is where letsencrypt-systemd comes to help. If you do the following:

sudo make

a systemd service (called letsencrypt-renew-tls-certs) will be installed in your system that will run the certbot renewal command every day at 5:40. The time can be changed, for instance, as follows:

sudo make RENEW_TIME=2:37

The above command will install and run the service, but these two actions can be done separately, as follows:

sudo make install
sudo make run-service

It is possible to verify that the systemd service is running by inspecting the systemd log, with this command:

sudo make check-log

The files can be uninstalled from systemd with:

sudo make uninstall

Copyright (C) 2018 Rafael Laboissière

letsencrypt-systemd is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

letsencrypt-systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http:https://www.gnu.org/licenses/.

Let's Encrypt and systemd are software systems copyrighted by their authors. letsencrypt-systemd just borrows their names but is not part of of them.