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105369a4 DT |
1 | ;;; GNU Guix --- Functional package management for GNU |
2 | ;;; Copyright © 2015 David Thompson <davet@gnu.org> | |
9b1cee97 | 3 | ;;; Copyright © 2015, 2016 Ludovic Courtès <ludo@gnu.org> |
8823ed4e | 4 | ;;; Copyright © 2016 Leo Famulari <leo@famulari.name> |
67cadaca | 5 | ;;; Copyright © 2017 Christopher Baines <mail@cbaines.net> |
5ee4cd69 | 6 | ;;; Copyright © 2018 Clément Lassieur <clement@lassieur.org> |
105369a4 DT |
7 | ;;; |
8 | ;;; This file is part of GNU Guix. | |
9 | ;;; | |
10 | ;;; GNU Guix is free software; you can redistribute it and/or modify it | |
11 | ;;; under the terms of the GNU General Public License as published by | |
12 | ;;; the Free Software Foundation; either version 3 of the License, or (at | |
13 | ;;; your option) any later version. | |
14 | ;;; | |
15 | ;;; GNU Guix is distributed in the hope that it will be useful, but | |
16 | ;;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;;; GNU General Public License for more details. | |
19 | ;;; | |
20 | ;;; You should have received a copy of the GNU General Public License | |
21 | ;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. | |
22 | ||
23 | (define-module (gnu services databases) | |
24 | #:use-module (gnu services) | |
0190c1c0 | 25 | #:use-module (gnu services shepherd) |
105369a4 DT |
26 | #:use-module (gnu system shadow) |
27 | #:use-module (gnu packages admin) | |
28 | #:use-module (gnu packages databases) | |
119fdd0d | 29 | #:use-module (guix modules) |
105369a4 | 30 | #:use-module (guix records) |
105369a4 | 31 | #:use-module (guix gexp) |
936e7a52 | 32 | #:use-module (srfi srfi-1) |
0adfe95a | 33 | #:use-module (ice-9 match) |
936e7a52 CB |
34 | #:export (<postgresql-config-file> |
35 | postgresql-config-file | |
36 | postgresql-config-file? | |
37 | postgresql-config-file-log-destination | |
38 | postgresql-config-file-hba-file | |
39 | postgresql-config-file-ident-file | |
40 | postgresql-config-file-extra-config | |
41 | ||
488ea71e CB |
42 | <postgresql-configuration> |
43 | postgresql-configuration | |
24e96431 | 44 | postgresql-configuration? |
488ea71e CB |
45 | postgresql-configuration-postgresql |
46 | postgresql-configuration-port | |
47 | postgresql-configuration-locale | |
48 | postgresql-configuration-file | |
49 | postgresql-configuration-data-directory | |
50 | ||
24e96431 TČ |
51 | postgresql-service |
52 | postgresql-service-type | |
53 | ||
119fdd0d CB |
54 | memcached-service-type |
55 | <memcached-configuration> | |
56 | memcached-configuration | |
57 | memcached-configuration? | |
58 | memcached-configuration-memecached | |
59 | memcached-configuration-interfaces | |
60 | memcached-configuration-tcp-port | |
61 | memcached-configuration-udp-port | |
62 | memcached-configuration-additional-options | |
63 | ||
5266ff71 CB |
64 | <mongodb-configuration> |
65 | mongodb-configuration | |
66 | mongodb-configuration? | |
67 | mongodb-configuration-mongodb | |
68 | mongodb-configuration-config-file | |
69 | mongodb-configuration-data-directory | |
70 | mongodb-service-type | |
71 | ||
6575183b | 72 | mysql-service |
24e96431 TČ |
73 | mysql-service-type |
74 | mysql-configuration | |
67cadaca CB |
75 | mysql-configuration? |
76 | ||
77 | redis-configuration | |
78 | redis-configuration? | |
79 | redis-service-type)) | |
105369a4 DT |
80 | |
81 | ;;; Commentary: | |
82 | ;;; | |
83 | ;;; Database services. | |
84 | ;;; | |
85 | ;;; Code: | |
86 | ||
936e7a52 CB |
87 | (define %default-postgres-hba |
88 | (plain-file "pg_hba.conf" | |
89 | " | |
90 | local all all trust | |
91 | host all all 127.0.0.1/32 trust | |
92 | host all all ::1/128 trust")) | |
93 | ||
94 | (define %default-postgres-ident | |
95 | (plain-file "pg_ident.conf" | |
96 | "# MAPNAME SYSTEM-USERNAME PG-USERNAME")) | |
97 | ||
98 | (define-record-type* <postgresql-config-file> | |
99 | postgresql-config-file make-postgresql-config-file | |
100 | postgresql-config-file? | |
101 | (log-destination postgresql-config-file-log-destination | |
102 | (default "syslog")) | |
103 | (hba-file postgresql-config-file-hba-file | |
104 | (default %default-postgres-hba)) | |
105 | (ident-file postgresql-config-file-ident-file | |
106 | (default %default-postgres-ident)) | |
107 | (extra-config postgresql-config-file-extra-config | |
108 | (default '()))) | |
109 | ||
110 | (define-gexp-compiler (postgresql-config-file-compiler | |
111 | (file <postgresql-config-file>) system target) | |
112 | (match file | |
113 | (($ <postgresql-config-file> log-destination hba-file | |
114 | ident-file extra-config) | |
53380838 | 115 | (define (single-quote string) |
936e7a52 CB |
116 | (if string |
117 | (list "'" string "'") | |
118 | '())) | |
119 | ||
120 | (define contents | |
121 | (append-map | |
122 | (match-lambda | |
123 | ((key) '()) | |
124 | ((key . #f) '()) | |
125 | ((key values ...) `(,key " = " ,@values "\n"))) | |
126 | ||
53380838 CB |
127 | `(("log_destination" ,@(single-quote log-destination)) |
128 | ("hba_file" ,@(single-quote hba-file)) | |
129 | ("ident_file" ,@(single-quote ident-file)) | |
936e7a52 CB |
130 | ,@extra-config))) |
131 | ||
132 | (gexp->derivation | |
133 | "postgresql.conf" | |
134 | #~(call-with-output-file (ungexp output "out") | |
135 | (lambda (port) | |
136 | (display | |
137 | (string-append #$@contents) | |
138 | port))) | |
139 | #:local-build? #t)))) | |
140 | ||
0adfe95a LC |
141 | (define-record-type* <postgresql-configuration> |
142 | postgresql-configuration make-postgresql-configuration | |
143 | postgresql-configuration? | |
144 | (postgresql postgresql-configuration-postgresql ;<package> | |
145 | (default postgresql)) | |
2d3d5cc5 CB |
146 | (port postgresql-configuration-port |
147 | (default 5432)) | |
e05b780a CB |
148 | (locale postgresql-configuration-locale |
149 | (default "en_US.utf8")) | |
1e6b9c6e | 150 | (config-file postgresql-configuration-file |
936e7a52 | 151 | (default (postgresql-config-file))) |
1e6b9c6e CB |
152 | (data-directory postgresql-configuration-data-directory |
153 | (default "/var/lib/postgresql/data"))) | |
0adfe95a | 154 | |
0adfe95a LC |
155 | (define %postgresql-accounts |
156 | (list (user-group (name "postgres") (system? #t)) | |
157 | (user-account | |
158 | (name "postgres") | |
159 | (group "postgres") | |
160 | (system? #t) | |
161 | (comment "PostgreSQL server user") | |
162 | (home-directory "/var/empty") | |
9e41130b | 163 | (shell (file-append shadow "/sbin/nologin"))))) |
0adfe95a LC |
164 | |
165 | (define postgresql-activation | |
166 | (match-lambda | |
e05b780a | 167 | (($ <postgresql-configuration> postgresql port locale config-file data-directory) |
0adfe95a LC |
168 | #~(begin |
169 | (use-modules (guix build utils) | |
170 | (ice-9 match)) | |
171 | ||
172 | (let ((user (getpwnam "postgres")) | |
e05b780a CB |
173 | (initdb (string-append #$postgresql "/bin/initdb")) |
174 | (initdb-args | |
175 | (append | |
176 | (if #$locale | |
177 | (list (string-append "--locale=" #$locale)) | |
178 | '())))) | |
0adfe95a LC |
179 | ;; Create db state directory. |
180 | (mkdir-p #$data-directory) | |
181 | (chown #$data-directory (passwd:uid user) (passwd:gid user)) | |
182 | ||
183 | ;; Drop privileges and init state directory in a new | |
184 | ;; process. Wait for it to finish before proceeding. | |
185 | (match (primitive-fork) | |
186 | (0 | |
187 | ;; Exit with a non-zero status code if an exception is thrown. | |
188 | (dynamic-wind | |
189 | (const #t) | |
190 | (lambda () | |
191 | (setgid (passwd:gid user)) | |
192 | (setuid (passwd:uid user)) | |
e05b780a CB |
193 | (primitive-exit |
194 | (apply system* | |
195 | initdb | |
196 | "-D" | |
197 | #$data-directory | |
198 | initdb-args))) | |
0adfe95a LC |
199 | (lambda () |
200 | (primitive-exit 1)))) | |
201 | (pid (waitpid pid)))))))) | |
202 | ||
d4053c71 | 203 | (define postgresql-shepherd-service |
0adfe95a | 204 | (match-lambda |
e05b780a | 205 | (($ <postgresql-configuration> postgresql port locale config-file data-directory) |
5ee4cd69 CL |
206 | (let* ((pg_ctl-wrapper |
207 | ;; Wrapper script that switches to the 'postgres' user before | |
208 | ;; launching daemon. | |
209 | (program-file | |
210 | "pg_ctl-wrapper" | |
211 | #~(begin | |
212 | (use-modules (ice-9 match) | |
213 | (ice-9 format)) | |
214 | (match (command-line) | |
215 | ((_ mode) | |
216 | (let ((user (getpwnam "postgres")) | |
217 | (pg_ctl #$(file-append postgresql "/bin/pg_ctl")) | |
218 | (options (format #f "--config-file=~a -p ~d" | |
219 | #$config-file #$port))) | |
220 | (setgid (passwd:gid user)) | |
221 | (setuid (passwd:uid user)) | |
222 | (execl pg_ctl pg_ctl "-D" #$data-directory "-o" options | |
223 | mode))))))) | |
224 | (action (lambda args | |
225 | #~(lambda _ | |
226 | (invoke #$pg_ctl-wrapper #$@args))))) | |
d4053c71 | 227 | (list (shepherd-service |
0adfe95a LC |
228 | (provision '(postgres)) |
229 | (documentation "Run the PostgreSQL daemon.") | |
9b1cee97 | 230 | (requirement '(user-processes loopback syslogd)) |
5ee4cd69 CL |
231 | (start (action "start")) |
232 | (stop (action "stop")))))))) | |
0adfe95a LC |
233 | |
234 | (define postgresql-service-type | |
235 | (service-type (name 'postgresql) | |
236 | (extensions | |
d4053c71 AK |
237 | (list (service-extension shepherd-root-service-type |
238 | postgresql-shepherd-service) | |
0adfe95a LC |
239 | (service-extension activation-service-type |
240 | postgresql-activation) | |
241 | (service-extension account-service-type | |
1e6b9c6e CB |
242 | (const %postgresql-accounts)))) |
243 | (default-value (postgresql-configuration)))) | |
0adfe95a | 244 | |
105369a4 | 245 | (define* (postgresql-service #:key (postgresql postgresql) |
2d3d5cc5 | 246 | (port 5432) |
e05b780a | 247 | (locale "en_US.utf8") |
936e7a52 | 248 | (config-file (postgresql-config-file)) |
105369a4 DT |
249 | (data-directory "/var/lib/postgresql/data")) |
250 | "Return a service that runs @var{postgresql}, the PostgreSQL database server. | |
251 | ||
252 | The PostgreSQL daemon loads its runtime configuration from @var{config-file} | |
253 | and stores the database cluster in @var{data-directory}." | |
0adfe95a LC |
254 | (service postgresql-service-type |
255 | (postgresql-configuration | |
256 | (postgresql postgresql) | |
2d3d5cc5 | 257 | (port port) |
e05b780a | 258 | (locale locale) |
0adfe95a LC |
259 | (config-file config-file) |
260 | (data-directory data-directory)))) | |
6575183b SB |
261 | |
262 | \f | |
119fdd0d CB |
263 | ;;; |
264 | ;;; Memcached | |
265 | ;;; | |
266 | ||
267 | (define-record-type* <memcached-configuration> | |
268 | memcached-configuration make-memcached-configuration | |
269 | memcached-configuration? | |
270 | (memcached memcached-configuration-memcached ;<package> | |
271 | (default memcached)) | |
272 | (interfaces memcached-configuration-interfaces | |
273 | (default '("0.0.0.0"))) | |
274 | (tcp-port memcached-configuration-tcp-port | |
275 | (default 11211)) | |
276 | (udp-port memcached-configuration-udp-port | |
277 | (default 11211)) | |
278 | (additional-options memcached-configuration-additional-options | |
279 | (default '()))) | |
280 | ||
281 | (define %memcached-accounts | |
282 | (list (user-group (name "memcached") (system? #t)) | |
283 | (user-account | |
284 | (name "memcached") | |
285 | (group "memcached") | |
286 | (system? #t) | |
287 | (comment "Memcached server user") | |
288 | (home-directory "/var/empty") | |
289 | (shell (file-append shadow "/sbin/nologin"))))) | |
290 | ||
6230e155 CB |
291 | (define memcached-activation |
292 | #~(begin | |
293 | (use-modules (guix build utils)) | |
294 | (let ((user (getpwnam "memcached"))) | |
295 | (mkdir-p "/var/run/memcached") | |
296 | (chown "/var/run/memcached" | |
297 | (passwd:uid user) (passwd:gid user))))) | |
298 | ||
119fdd0d CB |
299 | (define memcached-shepherd-service |
300 | (match-lambda | |
301 | (($ <memcached-configuration> memcached interfaces tcp-port udp-port | |
302 | additional-options) | |
303 | (with-imported-modules (source-module-closure | |
304 | '((gnu build shepherd))) | |
305 | (list (shepherd-service | |
306 | (provision '(memcached)) | |
307 | (documentation "Run the Memcached daemon.") | |
308 | (requirement '(user-processes loopback)) | |
309 | (modules '((gnu build shepherd))) | |
310 | (start #~(make-forkexec-constructor | |
311 | `(#$(file-append memcached "/bin/memcached") | |
312 | "-l" #$(string-join interfaces ",") | |
313 | "-p" #$(number->string tcp-port) | |
314 | "-U" #$(number->string udp-port) | |
315 | "--daemon" | |
6230e155 CB |
316 | ;; Memcached changes to the memcached user prior to |
317 | ;; writing the pid file, so write it to a directory | |
318 | ;; that memcached owns. | |
319 | "-P" "/var/run/memcached/pid" | |
119fdd0d CB |
320 | "-u" "memcached" |
321 | ,#$@additional-options) | |
322 | #:log-file "/var/log/memcached" | |
6230e155 | 323 | #:pid-file "/var/run/memcached/pid")) |
119fdd0d CB |
324 | (stop #~(make-kill-destructor)))))))) |
325 | ||
326 | (define memcached-service-type | |
327 | (service-type (name 'memcached) | |
328 | (extensions | |
329 | (list (service-extension shepherd-root-service-type | |
330 | memcached-shepherd-service) | |
6230e155 CB |
331 | (service-extension activation-service-type |
332 | (const memcached-activation)) | |
119fdd0d CB |
333 | (service-extension account-service-type |
334 | (const %memcached-accounts)))) | |
335 | (default-value (memcached-configuration)))) | |
336 | ||
337 | \f | |
5266ff71 CB |
338 | ;;; |
339 | ;;; MongoDB | |
340 | ;;; | |
341 | ||
342 | (define %default-mongodb-configuration-file | |
343 | (plain-file | |
344 | "mongodb.yaml" | |
345 | "# GNU Guix: MongoDB default configuration file | |
346 | processManagement: | |
347 | pidFilePath: /var/run/mongodb/pid | |
348 | storage: | |
349 | dbPath: /var/lib/mongodb | |
350 | ")) | |
351 | ||
352 | ||
353 | (define-record-type* <mongodb-configuration> | |
354 | mongodb-configuration make-mongodb-configuration | |
355 | mongodb-configuration? | |
356 | (mongodb mongodb-configuration-mongodb | |
357 | (default mongodb)) | |
358 | (config-file mongodb-configuration-config-file | |
359 | (default %default-mongodb-configuration-file)) | |
360 | (data-directory mongodb-configuration-data-directory | |
361 | (default "/var/lib/mongodb"))) | |
362 | ||
363 | (define %mongodb-accounts | |
364 | (list (user-group (name "mongodb") (system? #t)) | |
365 | (user-account | |
366 | (name "mongodb") | |
367 | (group "mongodb") | |
368 | (system? #t) | |
369 | (comment "Mongodb server user") | |
370 | (home-directory "/var/lib/mongodb") | |
371 | (shell (file-append shadow "/sbin/nologin"))))) | |
372 | ||
373 | (define mongodb-activation | |
374 | (match-lambda | |
375 | (($ <mongodb-configuration> mongodb config-file data-directory) | |
376 | #~(begin | |
377 | (use-modules (guix build utils)) | |
378 | (let ((user (getpwnam "mongodb"))) | |
379 | (for-each | |
380 | (lambda (directory) | |
381 | (mkdir-p directory) | |
382 | (chown directory | |
383 | (passwd:uid user) (passwd:gid user))) | |
384 | '("/var/run/mongodb" #$data-directory))))))) | |
385 | ||
386 | (define mongodb-shepherd-service | |
387 | (match-lambda | |
388 | (($ <mongodb-configuration> mongodb config-file data-directory) | |
389 | (shepherd-service | |
390 | (provision '(mongodb)) | |
391 | (documentation "Run the Mongodb daemon.") | |
392 | (requirement '(user-processes loopback)) | |
393 | (start #~(make-forkexec-constructor | |
394 | `(,(string-append #$mongodb "/bin/mongod") | |
395 | "--config" | |
396 | ,#$config-file) | |
397 | #:user "mongodb" | |
398 | #:group "mongodb" | |
399 | #:pid-file "/var/run/mongodb/pid" | |
400 | #:log-file "/var/log/mongodb.log")) | |
401 | (stop #~(make-kill-destructor)))))) | |
402 | ||
403 | (define mongodb-service-type | |
404 | (service-type | |
405 | (name 'mongodb) | |
406 | (description "Run the MongoDB document database server.") | |
407 | (extensions | |
408 | (list (service-extension shepherd-root-service-type | |
409 | (compose list | |
410 | mongodb-shepherd-service)) | |
411 | (service-extension activation-service-type | |
412 | mongodb-activation) | |
413 | (service-extension account-service-type | |
414 | (const %mongodb-accounts)))) | |
415 | (default-value | |
416 | (mongodb-configuration)))) | |
417 | ||
418 | \f | |
6575183b SB |
419 | ;;; |
420 | ;;; MySQL. | |
421 | ;;; | |
422 | ||
423 | (define-record-type* <mysql-configuration> | |
424 | mysql-configuration make-mysql-configuration | |
425 | mysql-configuration? | |
4b41febf CB |
426 | (mysql mysql-configuration-mysql (default mariadb)) |
427 | (port mysql-configuration-port (default 3306))) | |
6575183b SB |
428 | |
429 | (define %mysql-accounts | |
430 | (list (user-group | |
431 | (name "mysql") | |
432 | (system? #t)) | |
433 | (user-account | |
434 | (name "mysql") | |
435 | (group "mysql") | |
436 | (system? #t) | |
437 | (home-directory "/var/empty") | |
9e41130b | 438 | (shell (file-append shadow "/sbin/nologin"))))) |
6575183b SB |
439 | |
440 | (define mysql-configuration-file | |
441 | (match-lambda | |
4b41febf CB |
442 | (($ <mysql-configuration> mysql port) |
443 | (mixed-text-file "my.cnf" "[mysqld] | |
6575183b SB |
444 | datadir=/var/lib/mysql |
445 | socket=/run/mysqld/mysqld.sock | |
4b41febf | 446 | port=" (number->string port) " |
6575183b SB |
447 | ")))) |
448 | ||
449 | (define (%mysql-activation config) | |
450 | "Return an activation gexp for the MySQL or MariaDB database server." | |
451 | (let ((mysql (mysql-configuration-mysql config)) | |
452 | (my.cnf (mysql-configuration-file config))) | |
453 | #~(begin | |
454 | (use-modules (ice-9 popen) | |
455 | (guix build utils)) | |
456 | (let* ((mysqld (string-append #$mysql "/bin/mysqld")) | |
457 | (user (getpwnam "mysql")) | |
458 | (uid (passwd:uid user)) | |
459 | (gid (passwd:gid user)) | |
460 | (datadir "/var/lib/mysql") | |
461 | (rundir "/run/mysqld")) | |
462 | (mkdir-p datadir) | |
463 | (chown datadir uid gid) | |
464 | (mkdir-p rundir) | |
465 | (chown rundir uid gid) | |
466 | ;; Initialize the database when it doesn't exist. | |
467 | (when (not (file-exists? (string-append datadir "/mysql"))) | |
468 | (if (string-prefix? "mysql-" (strip-store-file-name #$mysql)) | |
469 | ;; For MySQL. | |
470 | (system* mysqld | |
471 | (string-append "--defaults-file=" #$my.cnf) | |
472 | "--initialize" | |
473 | "--user=mysql") | |
474 | ;; For MariaDB. | |
475 | ;; XXX: The 'mysql_install_db' script doesn't work directly | |
476 | ;; due to missing 'mkdir' in PATH. | |
477 | (let ((p (open-pipe* OPEN_WRITE mysqld | |
478 | (string-append | |
479 | "--defaults-file=" #$my.cnf) | |
480 | "--bootstrap" | |
481 | "--user=mysql"))) | |
482 | ;; Create the system database, as does by 'mysql_install_db'. | |
483 | (display "create database mysql;\n" p) | |
484 | (display "use mysql;\n" p) | |
485 | (for-each | |
486 | (lambda (sql) | |
487 | (call-with-input-file | |
488 | (string-append #$mysql "/share/mysql/" sql) | |
489 | (lambda (in) (dump-port in p)))) | |
490 | '("mysql_system_tables.sql" | |
491 | "mysql_performance_tables.sql" | |
492 | "mysql_system_tables_data.sql" | |
493 | "fill_help_tables.sql")) | |
494 | ;; Remove the anonymous user and disable root access from | |
495 | ;; remote machines, as does by 'mysql_secure_installation'. | |
496 | (display " | |
497 | DELETE FROM user WHERE User=''; | |
498 | DELETE FROM user WHERE User='root' AND | |
499 | Host NOT IN ('localhost', '127.0.0.1', '::1'); | |
500 | FLUSH PRIVILEGES; | |
501 | " p) | |
502 | (close-pipe p)))))))) | |
503 | ||
504 | (define (mysql-shepherd-service config) | |
505 | (list (shepherd-service | |
506 | (provision '(mysql)) | |
507 | (documentation "Run the MySQL server.") | |
508 | (start (let ((mysql (mysql-configuration-mysql config)) | |
509 | (my.cnf (mysql-configuration-file config))) | |
510 | #~(make-forkexec-constructor | |
511 | (list (string-append #$mysql "/bin/mysqld") | |
512 | (string-append "--defaults-file=" #$my.cnf)) | |
513 | #:user "mysql" #:group "mysql"))) | |
514 | (stop #~(make-kill-destructor))))) | |
515 | ||
516 | (define mysql-service-type | |
517 | (service-type | |
518 | (name 'mysql) | |
519 | (extensions | |
520 | (list (service-extension account-service-type | |
521 | (const %mysql-accounts)) | |
522 | (service-extension activation-service-type | |
523 | %mysql-activation) | |
524 | (service-extension shepherd-root-service-type | |
e903738f CB |
525 | mysql-shepherd-service))) |
526 | (default-value (mysql-configuration)))) | |
6575183b SB |
527 | |
528 | (define* (mysql-service #:key (config (mysql-configuration))) | |
529 | "Return a service that runs @command{mysqld}, the MySQL or MariaDB | |
530 | database server. | |
531 | ||
532 | The optional @var{config} argument specifies the configuration for | |
533 | @command{mysqld}, which should be a @code{<mysql-configuration>} object." | |
534 | (service mysql-service-type config)) | |
67cadaca CB |
535 | |
536 | \f | |
537 | ;;; | |
538 | ;;; Redis | |
539 | ;;; | |
540 | ||
541 | (define-record-type* <redis-configuration> | |
542 | redis-configuration make-redis-configuration | |
543 | redis-configuration? | |
544 | (redis redis-configuration-redis ;<package> | |
545 | (default redis)) | |
546 | (bind redis-configuration-bind | |
547 | (default "127.0.0.1")) | |
548 | (port redis-configuration-port | |
549 | (default 6379)) | |
550 | (working-directory redis-configuration-working-directory | |
551 | (default "/var/lib/redis")) | |
552 | (config-file redis-configuration-config-file | |
553 | (default #f))) | |
554 | ||
555 | (define (default-redis.conf bind port working-directory) | |
556 | (mixed-text-file "redis.conf" | |
557 | "bind " bind "\n" | |
558 | "port " (number->string port) "\n" | |
559 | "dir " working-directory "\n" | |
560 | "daemonize no\n")) | |
561 | ||
562 | (define %redis-accounts | |
563 | (list (user-group (name "redis") (system? #t)) | |
564 | (user-account | |
565 | (name "redis") | |
566 | (group "redis") | |
567 | (system? #t) | |
568 | (comment "Redis server user") | |
569 | (home-directory "/var/empty") | |
570 | (shell (file-append shadow "/sbin/nologin"))))) | |
571 | ||
572 | (define redis-activation | |
573 | (match-lambda | |
574 | (($ <redis-configuration> redis bind port working-directory config-file) | |
575 | #~(begin | |
576 | (use-modules (guix build utils) | |
577 | (ice-9 match)) | |
578 | ||
579 | (let ((user (getpwnam "redis"))) | |
580 | (mkdir-p #$working-directory) | |
581 | (chown #$working-directory (passwd:uid user) (passwd:gid user))))))) | |
582 | ||
583 | (define redis-shepherd-service | |
584 | (match-lambda | |
585 | (($ <redis-configuration> redis bind port working-directory config-file) | |
586 | (let ((config-file | |
587 | (or config-file | |
588 | (default-redis.conf bind port working-directory)))) | |
589 | (list (shepherd-service | |
590 | (provision '(redis)) | |
591 | (documentation "Run the Redis daemon.") | |
592 | (requirement '(user-processes syslogd)) | |
593 | (start #~(make-forkexec-constructor | |
594 | '(#$(file-append redis "/bin/redis-server") | |
595 | #$config-file) | |
596 | #:user "redis" | |
597 | #:group "redis")) | |
598 | (stop #~(make-kill-destructor)))))))) | |
599 | ||
600 | (define redis-service-type | |
601 | (service-type (name 'redis) | |
602 | (extensions | |
603 | (list (service-extension shepherd-root-service-type | |
604 | redis-shepherd-service) | |
605 | (service-extension activation-service-type | |
606 | redis-activation) | |
607 | (service-extension account-service-type | |
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608 | (const %redis-accounts)))) |
609 | (default-value (redis-configuration)))) |