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Diffstat (limited to 'gnu/services/certbot.scm')
| -rw-r--r-- | gnu/services/certbot.scm | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/gnu/services/certbot.scm b/gnu/services/certbot.scm new file mode 100644 index 0000000000..dc072ea8da --- /dev/null +++ b/gnu/services/certbot.scm @@ -0,0 +1,133 @@ +;;; GNU Guix --- Functional package management for GNU +;;; Copyright © 2016 ng0 <ng0@we.make.ritual.n0.is> +;;; Copyright © 2016 Sou Bunnbu <iyzsong@member.fsf.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 + (http-port 80) + (https-port #f) + (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}."))) |