aboutsummaryrefslogtreecommitdiff
path: root/gnu/services/web.scm
blob: c605d76866a4fad82550898a510e39e5c325d8ac (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015 David Thompson <davet@gnu.org>
;;; Copyright © 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2016 ng0 <ng0@we.make.ritual.n0.is>
;;; Copyright © 2016, 2017 Julien Lepiller <julien@lepiller.eu>
;;; Copyright © 2017 Christopher Baines <mail@cbaines.net>
;;;
;;; 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 web)
  #:use-module (gnu services)
  #:use-module (gnu services shepherd)
  #:use-module (gnu system shadow)
  #:use-module (gnu packages admin)
  #:use-module (gnu packages web)
  #:use-module (guix records)
  #:use-module (guix gexp)
  #:use-module (srfi srfi-1)
  #:use-module (ice-9 match)
  #:export (nginx-configuration
            nginx-configuration?
            nginx-server-configuration
            nginx-server-configuration?
            nginx-upstream-configuration
            nginx-upstream-configuration?
            nginx-location-configuration
            nginx-location-configuration?
            nginx-named-location-configuration
            nginx-named-location-configuration?
            nginx-service
            nginx-service-type

            fcgiwrap-configuration
            fcgiwrap-configuration?
            fcgiwrap-service-type))

;;; Commentary:
;;;
;;; Web services.
;;;
;;; Code:

(define-record-type* <nginx-server-configuration>
  nginx-server-configuration make-nginx-server-configuration
  nginx-server-configuration?
  (http-port           nginx-server-configuration-http-port
                       (default 80))
  (https-port          nginx-server-configuration-https-port
                       (default 443))
  (server-name         nginx-server-configuration-server-name
                       (default (list 'default)))
  (root                nginx-server-configuration-root
                       (default "/srv/http"))
  (locations           nginx-server-configuration-locations
                       (default '()))
  (index               nginx-server-configuration-index
                       (default (list "index.html")))
  (ssl-certificate     nginx-server-configuration-ssl-certificate
                       (default "/etc/nginx/cert.pem"))
  (ssl-certificate-key nginx-server-configuration-ssl-certificate-key
                       (default "/etc/nginx/key.pem"))
  (server-tokens?      nginx-server-configuration-server-tokens?
                       (default #f)))

(define-record-type* <nginx-upstream-configuration>
  nginx-upstream-configuration make-nginx-upstream-configuration
  nginx-upstream-configuration?
  (name                nginx-upstream-configuration-name)
  (servers             nginx-upstream-configuration-servers))

(define-record-type* <nginx-location-configuration>
  nginx-location-configuration make-nginx-location-configuration
  nginx-location-configuration?
  (uri                 nginx-location-configuration-uri
                       (default #f))
  (body                nginx-location-configuration-body))

(define-record-type* <nginx-named-location-configuration>
  nginx-named-location-configuration make-nginx-named-location-configuration
  nginx-named-location-configuration?
  (name                nginx-named-location-configuration-name
                       (default #f))
  (body                nginx-named-location-configuration-body))

(define-record-type* <nginx-configuration>
  nginx-configuration make-nginx-configuration
  nginx-configuration?
  (nginx         nginx-configuration-nginx          ;<package>
                 (default nginx))
  (log-directory nginx-configuration-log-directory  ;string
                 (default "/var/log/nginx"))
  (run-directory nginx-configuration-run-directory  ;string
                 (default "/var/run/nginx"))
  (server-blocks nginx-configuration-server-blocks
                 (default '()))          ;list of <nginx-server-configuration>
  (upstream-blocks nginx-configuration-upstream-blocks
                   (default '()))      ;list of <nginx-upstream-configuration>
  (file          nginx-configuration-file         ;#f | string | file-like
                 (default #f)))

(define (config-domain-strings names)
 "Return a string denoting the nginx config representation of NAMES, a list
of domain names."
 (string-join
  (map (match-lambda
        ('default "_ ")
        ((? string? str) (string-append str " ")))
       names)))

(define (config-index-strings names)
 "Return a string denoting the nginx config representation of NAMES, a list
of index files."
 (string-join
  (map (match-lambda
        ((? string? str) (string-append str " ")))
       names)))

(define nginx-location-config
  (match-lambda
    (($ <nginx-location-configuration> uri body)
     (string-append
      "      location " uri " {\n"
      "        " (string-join body "\n    ") "\n"
      "      }\n"))
    (($ <nginx-named-location-configuration> name body)
     (string-append
      "      location @" name " {\n"
      "        " (string-join body "\n    ") "\n"
      "      }\n"))))

(define (default-nginx-server-config server)
  (string-append
   "    server {\n"
   (if (nginx-server-configuration-http-port server)
       (string-append "      listen "
                      (number->string (nginx-server-configuration-http-port server))
                      ";\n")
       "")
   (if (nginx-server-configuration-https-port server)
       (string-append "      listen "
                      (number->string (nginx-server-configuration-https-port server))
                      " ssl;\n")
       "")
   "      server_name " (config-domain-strings
                         (nginx-server-configuration-server-name server))
                        ";\n"
   (if (nginx-server-configuration-ssl-certificate server)
       (let ((certificate (nginx-server-configuration-ssl-certificate server)))
         ;; lstat fails when the certificate file does not exist: it aborts
         ;; and lets the user fix their configuration.
         (lstat certificate)
         (string-append "      ssl_certificate " certificate ";\n"))
       "")
   (if (nginx-server-configuration-ssl-certificate-key server)
       (let ((key (nginx-server-configuration-ssl-certificate-key server)))
         (lstat key)
         (string-append "      ssl_certificate_key " key ";\n"))
       "")
   "      root " (nginx-server-configuration-root server) ";\n"
   "      index " (config-index-strings (nginx-server-configuration-index server)) ";\n"
   "      server_tokens " (if (nginx-server-configuration-server-tokens? server)
                              "on" "off") ";\n"
   "\n"
   (string-join
    (map nginx-location-config (nginx-server-configuration-locations server))
    "\n")
   "    }\n"))

(define (nginx-upstream-config upstream)
  (string-append
   "    upstream " (nginx-upstream-configuration-name upstream) " {\n"
   (string-concatenate
    (map (lambda (server)
           (simple-format #f "      server ~A;\n" server))
         (nginx-upstream-configuration-servers upstream)))
   "    }\n"))

(define (default-nginx-config nginx log-directory run-directory server-list upstream-list)
  (mixed-text-file "nginx.conf"
               "user nginx nginx;\n"
               "pid " run-directory "/pid;\n"
               "error_log " log-directory "/error.log info;\n"
               "http {\n"
               "    client_body_temp_path " run-directory "/client_body_temp;\n"
               "    proxy_temp_path " run-directory "/proxy_temp;\n"
               "    fastcgi_temp_path " run-directory "/fastcgi_temp;\n"
               "    uwsgi_temp_path " run-directory "/uwsgi_temp;\n"
               "    scgi_temp_path " run-directory "/scgi_temp;\n"
               "    access_log " log-directory "/access.log;\n"
               "    include " nginx "/share/nginx/conf/mime.types;\n"
               "\n"
               (string-join
                (filter (lambda (section) (not (null? section)))
                        (map nginx-upstream-config upstream-list))
                "\n")
               "\n"
               (let ((http (map default-nginx-server-config server-list)))
                 (do ((http http (cdr http))
                      (block "" (string-append (car http) "\n" block )))
                     ((null? http) block)))
               "}\n"
               "events {}\n"))

(define %nginx-accounts
  (list (user-group (name "nginx") (system? #t))
        (user-account
         (name "nginx")
         (group "nginx")
         (system? #t)
         (comment "nginx server user")
         (home-directory "/var/empty")
         (shell (file-append shadow "/sbin/nologin")))))

(define nginx-activation
  (match-lambda
    (($ <nginx-configuration> nginx log-directory run-directory server-blocks
                              upstream-blocks config-file)
     #~(begin
         (use-modules (guix build utils))

         (format #t "creating nginx log directory '~a'~%" #$log-directory)
         (mkdir-p #$log-directory)
         (format #t "creating nginx run directory '~a'~%" #$run-directory)
         (mkdir-p #$run-directory)
         (format #t "creating nginx temp directories '~a/{client_body,proxy,fastcgi,uwsgi,scgi}_temp'~%" #$run-directory)
         (mkdir-p (string-append #$run-directory "/client_body_temp"))
         (mkdir-p (string-append #$run-directory "/proxy_temp"))
         (mkdir-p (string-append #$run-directory "/fastcgi_temp"))
         (mkdir-p (string-append #$run-directory "/uwsgi_temp"))
         (mkdir-p (string-append #$run-directory "/scgi_temp"))
         ;; Start-up logs. Once configuration is loaded, nginx switches to
         ;; log-directory.
         (mkdir-p (string-append #$run-directory "/logs"))
         ;; Check configuration file syntax.
         (system* (string-append #$nginx "/sbin/nginx")
                  "-c" #$(or config-file
                             (default-nginx-config nginx log-directory
                               run-directory server-blocks upstream-blocks))
                  "-t")))))

(define nginx-shepherd-service
  (match-lambda
    (($ <nginx-configuration> nginx log-directory run-directory server-blocks
                              upstream-blocks config-file)
     (let* ((nginx-binary (file-append nginx "/sbin/nginx"))
            (nginx-action
             (lambda args
               #~(lambda _
                   (zero?
                    (system* #$nginx-binary "-c"
                             #$(or config-file
                                   (default-nginx-config nginx log-directory
                                     run-directory server-blocks upstream-blocks))
                             #$@args))))))

       ;; TODO: Add 'reload' action.
       (list (shepherd-service
              (provision '(nginx))
              (documentation "Run the nginx daemon.")
              (requirement '(user-processes loopback))
              (start (nginx-action "-p" run-directory))
              (stop (nginx-action "-s" "stop"))))))))

(define nginx-service-type
  (service-type (name 'nginx)
                (extensions
                 (list (service-extension shepherd-root-service-type
                                          nginx-shepherd-service)
                       (service-extension activation-service-type
                                          nginx-activation)
                       (service-extension account-service-type
                                          (const %nginx-accounts))))
                (compose concatenate)
                (extend (lambda (config servers)
                          (nginx-configuration
                            (inherit config)
                            (server-blocks
                              (append (nginx-configuration-server-blocks config)
                              servers)))))))

(define* (nginx-service #:key (nginx nginx)
                        (log-directory "/var/log/nginx")
                        (run-directory "/var/run/nginx")
                        (server-list '())
                        (upstream-list '())
                        (config-file #f))
  "Return a service that runs NGINX, the nginx web server.

The nginx daemon loads its runtime configuration from CONFIG-FILE, stores log
files in LOG-DIRECTORY, and stores temporary runtime files in RUN-DIRECTORY."
  (service nginx-service-type
           (nginx-configuration
            (nginx nginx)
            (log-directory log-directory)
            (run-directory run-directory)
            (server-blocks server-list)
            (upstream-blocks upstream-list)
            (file config-file))))

(define-record-type* <fcgiwrap-configuration> fcgiwrap-configuration
  make-fcgiwrap-configuration
  fcgiwrap-configuration?
  (package       fcgiwrap-configuration-package ;<package>
                 (default fcgiwrap))
  (socket        fcgiwrap-configuration-socket
                 (default "tcp:127.0.0.1:9000"))
  (user          fcgiwrap-configuration-user
                 (default "fcgiwrap"))
  (group         fcgiwrap-configuration-group
                 (default "fcgiwrap")))

(define fcgiwrap-accounts
  (match-lambda
    (($ <fcgiwrap-configuration> package socket user group)
     (filter identity
             (list
              (and (equal? group "fcgiwrap")
                   (user-group
                    (name "fcgiwrap")
                    (system? #t)))
              (and (equal? user "fcgiwrap")
                   (user-account
                    (name "fcgiwrap")
                    (group group)
                    (system? #t)
                    (comment "Fcgiwrap Daemon")
                    (home-directory "/var/empty")
                    (shell (file-append shadow "/sbin/nologin")))))))))

(define fcgiwrap-shepherd-service
  (match-lambda
    (($ <fcgiwrap-configuration> package socket user group)
     (list (shepherd-service
            (provision '(fcgiwrap))
            (documentation "Run the fcgiwrap daemon.")
            (requirement '(networking))
            (start #~(make-forkexec-constructor
                      '(#$(file-append package "/sbin/fcgiwrap")
			  "-s" #$socket)
		      #:user #$user #:group #$group))
            (stop #~(make-kill-destructor)))))))

(define fcgiwrap-service-type
  (service-type (name 'fcgiwrap)
                (extensions
                 (list (service-extension shepherd-root-service-type
                                          fcgiwrap-shepherd-service)
		       (service-extension account-service-type
                                          fcgiwrap-accounts)))
                (default-value (fcgiwrap-configuration))))