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1115f140 | 1 | ;;; GNU Guix --- Functional package management for GNU |
47956fa0 | 2 | ;;; Copyright © 2016 ng0 <ng0@n0.is> |
1115f140 | 3 | ;;; Copyright © 2016 Sou Bunnbu <iyzsong@member.fsf.org> |
70cd2239 | 4 | ;;; Copyright © 2017, 2018 Clément Lassieur <clement@lassieur.org> |
1115f140 AW |
5 | ;;; |
6 | ;;; This file is part of GNU Guix. | |
7 | ;;; | |
8 | ;;; GNU Guix is free software; you can redistribute it and/or modify it | |
9 | ;;; under the terms of the GNU General Public License as published by | |
10 | ;;; the Free Software Foundation; either version 3 of the License, or (at | |
11 | ;;; your option) any later version. | |
12 | ;;; | |
13 | ;;; GNU Guix is distributed in the hope that it will be useful, but | |
14 | ;;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | ;;; GNU General Public License for more details. | |
17 | ;;; | |
18 | ;;; You should have received a copy of the GNU General Public License | |
19 | ;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. | |
20 | ||
21 | (define-module (gnu services certbot) | |
22 | #:use-module (gnu services) | |
23 | #:use-module (gnu services base) | |
24 | #:use-module (gnu services shepherd) | |
25 | #:use-module (gnu services mcron) | |
26 | #:use-module (gnu services web) | |
27 | #:use-module (gnu system shadow) | |
28 | #:use-module (gnu packages tls) | |
f7266296 | 29 | #:use-module (guix i18n) |
1115f140 AW |
30 | #:use-module (guix records) |
31 | #:use-module (guix gexp) | |
32 | #:use-module (srfi srfi-1) | |
33 | #:use-module (ice-9 match) | |
34 | #:export (certbot-service-type | |
35 | certbot-configuration | |
c3215d2f CL |
36 | certbot-configuration? |
37 | certificate-configuration)) | |
1115f140 AW |
38 | |
39 | ;;; Commentary: | |
40 | ;;; | |
41 | ;;; Automatically obtaining TLS certificates from Let's Encrypt. | |
42 | ;;; | |
43 | ;;; Code: | |
44 | ||
45 | \f | |
c3215d2f CL |
46 | (define-record-type* <certificate-configuration> |
47 | certificate-configuration make-certificate-configuration | |
48 | certificate-configuration? | |
49 | (name certificate-configuration-name | |
50 | (default #f)) | |
51 | (domains certificate-configuration-domains | |
fece75fe CL |
52 | (default '())) |
53 | (deploy-hook certificate-configuration-deploy-hook | |
54 | (default #f))) | |
c3215d2f | 55 | |
1115f140 AW |
56 | (define-record-type* <certbot-configuration> |
57 | certbot-configuration make-certbot-configuration | |
58 | certbot-configuration? | |
59 | (package certbot-configuration-package | |
60 | (default certbot)) | |
61 | (webroot certbot-configuration-webroot | |
62 | (default "/var/www")) | |
c3215d2f | 63 | (certificates certbot-configuration-certificates |
1115f140 | 64 | (default '())) |
65fc1d89 | 65 | (email certbot-configuration-email) |
a2cb2bbc CL |
66 | (rsa-key-size certbot-configuration-rsa-key-size |
67 | (default #f)) | |
1115f140 AW |
68 | (default-location certbot-configuration-default-location |
69 | (default | |
70 | (nginx-location-configuration | |
71 | (uri "/") | |
72 | (body | |
73 | (list "return 301 https://$host$request_uri;")))))) | |
74 | ||
c1dfcfdf | 75 | (define certbot-command |
1115f140 | 76 | (match-lambda |
c3215d2f | 77 | (($ <certbot-configuration> package webroot certificates email |
a2cb2bbc | 78 | rsa-key-size default-location) |
c1dfcfdf | 79 | (let* ((certbot (file-append package "/bin/certbot")) |
a2cb2bbc | 80 | (rsa-key-size (and rsa-key-size (number->string rsa-key-size))) |
c1dfcfdf CL |
81 | (commands |
82 | (map | |
c3215d2f | 83 | (match-lambda |
fece75fe CL |
84 | (($ <certificate-configuration> custom-name domains |
85 | deploy-hook) | |
e216c797 CL |
86 | (let ((name (or custom-name (car domains)))) |
87 | (append | |
88 | (list name certbot "certonly" "-n" "--agree-tos" | |
89 | "-m" email | |
90 | "--webroot" "-w" webroot | |
91 | "--cert-name" name | |
92 | "-d" (string-join domains ",")) | |
fece75fe CL |
93 | (if rsa-key-size `("--rsa-key-size" ,rsa-key-size) '()) |
94 | (if deploy-hook `("--deploy-hook" ,deploy-hook) '()))))) | |
c3215d2f | 95 | certificates))) |
c1dfcfdf CL |
96 | (program-file |
97 | "certbot-command" | |
e216c797 CL |
98 | #~(begin |
99 | (use-modules (ice-9 match)) | |
100 | (let ((code 0)) | |
101 | (for-each | |
102 | (match-lambda | |
103 | ((name . command) | |
104 | (begin | |
105 | (format #t "Acquiring or renewing certificate: ~a~%" name) | |
106 | (set! code (or (apply system* command) code))))) | |
107 | '#$commands) code))))))) | |
1115f140 | 108 | |
c1dfcfdf CL |
109 | (define (certbot-renewal-jobs config) |
110 | (list | |
111 | ;; Attempt to renew the certificates twice per day, at a random minute | |
112 | ;; within the hour. See https://certbot.eff.org/all-instructions/. | |
113 | #~(job '(next-minute-from (next-hour '(0 12)) (list (random 60))) | |
114 | #$(certbot-command config)))) | |
115 | ||
116 | (define (certbot-activation config) | |
f7266296 CL |
117 | (let* ((certbot-directory "/var/lib/certbot") |
118 | (script (in-vicinity certbot-directory "renew-certificates")) | |
119 | (message (format #f (G_ "~a may need to be run~%") script))) | |
120 | (match config | |
121 | (($ <certbot-configuration> package webroot certificates email | |
122 | rsa-key-size default-location) | |
123 | (with-imported-modules '((guix build utils)) | |
124 | #~(begin | |
125 | (use-modules (guix build utils)) | |
126 | (mkdir-p #$webroot) | |
127 | (mkdir-p #$certbot-directory) | |
128 | (copy-file #$(certbot-command config) #$script) | |
129 | (display #$message))))))) | |
1115f140 AW |
130 | |
131 | (define certbot-nginx-server-configurations | |
132 | (match-lambda | |
c3215d2f | 133 | (($ <certbot-configuration> package webroot certificates email |
a2cb2bbc | 134 | rsa-key-size default-location) |
c3215d2f CL |
135 | (list |
136 | (nginx-server-configuration | |
137 | (listen '("80" "[::]:80")) | |
138 | (ssl-certificate #f) | |
139 | (ssl-certificate-key #f) | |
140 | (server-name | |
141 | (apply append (map certificate-configuration-domains certificates))) | |
142 | (locations | |
143 | (filter identity | |
144 | (list | |
145 | (nginx-location-configuration | |
146 | (uri "/.well-known") | |
147 | (body (list (list "root " webroot ";")))) | |
148 | default-location)))))))) | |
1115f140 AW |
149 | |
150 | (define certbot-service-type | |
151 | (service-type (name 'certbot) | |
152 | (extensions | |
153 | (list (service-extension nginx-service-type | |
154 | certbot-nginx-server-configurations) | |
155 | (service-extension activation-service-type | |
156 | certbot-activation) | |
157 | (service-extension mcron-service-type | |
158 | certbot-renewal-jobs))) | |
159 | (compose concatenate) | |
c3215d2f | 160 | (extend (lambda (config additional-certificates) |
1115f140 AW |
161 | (certbot-configuration |
162 | (inherit config) | |
c3215d2f CL |
163 | (certificates |
164 | (append | |
165 | (certbot-configuration-certificates config) | |
166 | additional-certificates))))) | |
3af03e59 LC |
167 | (description |
168 | "Automatically renew @url{https://letsencrypt.org, Let's | |
169 | Encrypt} HTTPS certificates by adjusting the nginx web server configuration | |
170 | and periodically invoking @command{certbot}."))) |