guix-devel/gnu/services/certbot.scm

134 lines
5.2 KiB
Scheme
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016 ng0 <ng0@we.make.ritual.n0.is>
;;; Copyright © 2016 Sou Bunnbu <iyzsong@member.fsf.org>
;;; Copyright © 2017 Clément Lassieur <clement@lassieur.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix 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.
;;;
;;; GNU Guix 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 GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu services certbot)
#:use-module (gnu services)
#:use-module (gnu services base)
#:use-module (gnu services shepherd)
#:use-module (gnu services mcron)
#:use-module (gnu services web)
#:use-module (gnu system shadow)
#:use-module (gnu packages tls)
#:use-module (guix records)
#:use-module (guix gexp)
#:use-module (srfi srfi-1)
#:use-module (ice-9 match)
#:export (certbot-service-type
certbot-configuration
certbot-configuration?))
;;; Commentary:
;;;
;;; Automatically obtaining TLS certificates from Let's Encrypt.
;;;
;;; Code:
(define-record-type* <certbot-configuration>
certbot-configuration make-certbot-configuration
certbot-configuration?
(package certbot-configuration-package
(default certbot))
(webroot certbot-configuration-webroot
(default "/var/www"))
(hosts certbot-configuration-hosts
(default '()))
(default-location certbot-configuration-default-location
(default
(nginx-location-configuration
(uri "/")
(body
(list "return 301 https://$host$request_uri;"))))))
(define certbot-renewal-jobs
(match-lambda
(($ <certbot-configuration> package webroot hosts default-location)
(match hosts
;; Avoid pinging certbot if we have no hosts.
(() '())
(_
(list
;; Attempt to renew the certificates twice a week.
#~(job (lambda (now)
(next-day-from (next-hour-from now '(3))
'(2 5)))
(string-append #$package "/bin/certbot renew"
(string-concatenate
(map (lambda (host)
(string-append " -d " host))
'#$hosts))))))))))
(define certbot-activation
(match-lambda
(($ <certbot-configuration> package webroot hosts default-location)
(with-imported-modules '((guix build utils))
#~(begin
(use-modules (guix build utils))
(mkdir-p #$webroot)
(for-each
(lambda (host)
(unless (file-exists? (in-vicinity "/etc/letsencrypt/live" host))
(unless (zero? (system*
(string-append #$certbot "/bin/certbot")
"certonly" "--webroot" "-w" #$webroot
"-d" host))
(error "failed to acquire cert for host" host))))
'#$hosts))))))
(define certbot-nginx-server-configurations
(match-lambda
(($ <certbot-configuration> package webroot hosts default-location)
(map
(lambda (host)
(nginx-server-configuration
(listen '("80"))
(ssl-certificate #f)
(ssl-certificate-key #f)
(server-name (list host))
(locations
(filter identity
(list
(nginx-location-configuration
(uri "/.well-known")
(body (list (list "root " webroot ";"))))
default-location)))))
hosts))))
(define certbot-service-type
(service-type (name 'certbot)
(extensions
(list (service-extension nginx-service-type
certbot-nginx-server-configurations)
(service-extension activation-service-type
certbot-activation)
(service-extension mcron-service-type
certbot-renewal-jobs)))
(compose concatenate)
(extend (lambda (config additional-hosts)
(certbot-configuration
(inherit config)
(hosts (append (certbot-configuration-hosts config)
additional-hosts)))))
(default-value (certbot-configuration))
(description
"Automatically renew @url{https://letsencrypt.org, Let's
Encrypt} HTTPS certificates by adjusting the nginx web server configuration
and periodically invoking @command{certbot}.")))