| 1 | ;;; GNU Guix --- Functional package management for GNU |
| 2 | ;;; Copyright © 2015 David Thompson <davet@gnu.org> |
| 3 | ;;; Copyright © 2015, 2016 Ludovic Courtès <ludo@gnu.org> |
| 4 | ;;; Copyright © 2016 Leo Famulari <leo@famulari.name> |
| 5 | ;;; Copyright © 2017 Christopher Baines <mail@cbaines.net> |
| 6 | ;;; Copyright © 2018 Clément Lassieur <clement@lassieur.org> |
| 7 | ;;; Copyright © 2018 Julien Lepiller <julien@lepiller.eu> |
| 8 | ;;; Copyright © 2019 Robert Vollmert <rob@vllmrt.net> |
| 9 | ;;; |
| 10 | ;;; This file is part of GNU Guix. |
| 11 | ;;; |
| 12 | ;;; GNU Guix is free software; you can redistribute it and/or modify it |
| 13 | ;;; under the terms of the GNU General Public License as published by |
| 14 | ;;; the Free Software Foundation; either version 3 of the License, or (at |
| 15 | ;;; your option) any later version. |
| 16 | ;;; |
| 17 | ;;; GNU Guix is distributed in the hope that it will be useful, but |
| 18 | ;;; WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | ;;; GNU General Public License for more details. |
| 21 | ;;; |
| 22 | ;;; You should have received a copy of the GNU General Public License |
| 23 | ;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. |
| 24 | |
| 25 | (define-module (gnu services databases) |
| 26 | #:use-module (gnu services) |
| 27 | #:use-module (gnu services shepherd) |
| 28 | #:use-module (gnu system shadow) |
| 29 | #:use-module (gnu packages admin) |
| 30 | #:use-module (gnu packages databases) |
| 31 | #:use-module (guix build-system trivial) |
| 32 | #:use-module (guix build union) |
| 33 | #:use-module (guix modules) |
| 34 | #:use-module (guix packages) |
| 35 | #:use-module (guix records) |
| 36 | #:use-module (guix gexp) |
| 37 | #:use-module (srfi srfi-1) |
| 38 | #:use-module (ice-9 match) |
| 39 | #:export (<postgresql-config-file> |
| 40 | postgresql-config-file |
| 41 | postgresql-config-file? |
| 42 | postgresql-config-file-log-destination |
| 43 | postgresql-config-file-hba-file |
| 44 | postgresql-config-file-ident-file |
| 45 | postgresql-config-file-extra-config |
| 46 | |
| 47 | <postgresql-configuration> |
| 48 | postgresql-configuration |
| 49 | postgresql-configuration? |
| 50 | postgresql-configuration-postgresql |
| 51 | postgresql-configuration-port |
| 52 | postgresql-configuration-locale |
| 53 | postgresql-configuration-file |
| 54 | postgresql-configuration-data-directory |
| 55 | |
| 56 | postgresql-service |
| 57 | postgresql-service-type |
| 58 | |
| 59 | memcached-service-type |
| 60 | <memcached-configuration> |
| 61 | memcached-configuration |
| 62 | memcached-configuration? |
| 63 | memcached-configuration-memecached |
| 64 | memcached-configuration-interfaces |
| 65 | memcached-configuration-tcp-port |
| 66 | memcached-configuration-udp-port |
| 67 | memcached-configuration-additional-options |
| 68 | |
| 69 | <mongodb-configuration> |
| 70 | mongodb-configuration |
| 71 | mongodb-configuration? |
| 72 | mongodb-configuration-mongodb |
| 73 | mongodb-configuration-config-file |
| 74 | mongodb-configuration-data-directory |
| 75 | mongodb-service-type |
| 76 | |
| 77 | mysql-service |
| 78 | mysql-service-type |
| 79 | mysql-configuration |
| 80 | mysql-configuration? |
| 81 | |
| 82 | redis-configuration |
| 83 | redis-configuration? |
| 84 | redis-service-type)) |
| 85 | |
| 86 | ;;; Commentary: |
| 87 | ;;; |
| 88 | ;;; Database services. |
| 89 | ;;; |
| 90 | ;;; Code: |
| 91 | |
| 92 | (define %default-postgres-hba |
| 93 | (plain-file "pg_hba.conf" |
| 94 | " |
| 95 | local all all peer |
| 96 | host all all 127.0.0.1/32 md5 |
| 97 | host all all ::1/128 md5")) |
| 98 | |
| 99 | (define %default-postgres-ident |
| 100 | (plain-file "pg_ident.conf" |
| 101 | "# MAPNAME SYSTEM-USERNAME PG-USERNAME")) |
| 102 | |
| 103 | (define-record-type* <postgresql-config-file> |
| 104 | postgresql-config-file make-postgresql-config-file |
| 105 | postgresql-config-file? |
| 106 | (log-destination postgresql-config-file-log-destination |
| 107 | (default "syslog")) |
| 108 | (hba-file postgresql-config-file-hba-file |
| 109 | (default %default-postgres-hba)) |
| 110 | (ident-file postgresql-config-file-ident-file |
| 111 | (default %default-postgres-ident)) |
| 112 | (extra-config postgresql-config-file-extra-config |
| 113 | (default '()))) |
| 114 | |
| 115 | (define-gexp-compiler (postgresql-config-file-compiler |
| 116 | (file <postgresql-config-file>) system target) |
| 117 | (match file |
| 118 | (($ <postgresql-config-file> log-destination hba-file |
| 119 | ident-file extra-config) |
| 120 | (define (single-quote string) |
| 121 | (if string |
| 122 | (list "'" string "'") |
| 123 | '())) |
| 124 | |
| 125 | (define contents |
| 126 | (append-map |
| 127 | (match-lambda |
| 128 | ((key) '()) |
| 129 | ((key . #f) '()) |
| 130 | ((key values ...) `(,key " = " ,@values "\n"))) |
| 131 | |
| 132 | `(("log_destination" ,@(single-quote log-destination)) |
| 133 | ("hba_file" ,@(single-quote hba-file)) |
| 134 | ("ident_file" ,@(single-quote ident-file)) |
| 135 | ,@extra-config))) |
| 136 | |
| 137 | (gexp->derivation |
| 138 | "postgresql.conf" |
| 139 | #~(call-with-output-file (ungexp output "out") |
| 140 | (lambda (port) |
| 141 | (display |
| 142 | (string-append #$@contents) |
| 143 | port))) |
| 144 | #:local-build? #t)))) |
| 145 | |
| 146 | (define-record-type* <postgresql-configuration> |
| 147 | postgresql-configuration make-postgresql-configuration |
| 148 | postgresql-configuration? |
| 149 | (postgresql postgresql-configuration-postgresql ;<package> |
| 150 | (default postgresql)) |
| 151 | (port postgresql-configuration-port |
| 152 | (default 5432)) |
| 153 | (locale postgresql-configuration-locale |
| 154 | (default "en_US.utf8")) |
| 155 | (config-file postgresql-configuration-file |
| 156 | (default (postgresql-config-file))) |
| 157 | (data-directory postgresql-configuration-data-directory |
| 158 | (default "/var/lib/postgresql/data")) |
| 159 | (extension-packages postgresql-configuration-extension-packages |
| 160 | (default '()))) |
| 161 | |
| 162 | (define %postgresql-accounts |
| 163 | (list (user-group (name "postgres") (system? #t)) |
| 164 | (user-account |
| 165 | (name "postgres") |
| 166 | (group "postgres") |
| 167 | (system? #t) |
| 168 | (comment "PostgreSQL server user") |
| 169 | (home-directory "/var/empty") |
| 170 | (shell (file-append shadow "/sbin/nologin"))))) |
| 171 | |
| 172 | (define (final-postgresql postgresql extension-packages) |
| 173 | (if (null? extension-packages) |
| 174 | postgresql |
| 175 | (package |
| 176 | (inherit postgresql) |
| 177 | (source #f) |
| 178 | (build-system trivial-build-system) |
| 179 | (arguments |
| 180 | `(#:modules ((guix build utils) (guix build union)) |
| 181 | #:builder |
| 182 | (begin |
| 183 | (use-modules (guix build utils) (guix build union) (srfi srfi-26)) |
| 184 | (union-build (assoc-ref %outputs "out") (map (lambda (input) (cdr input)) %build-inputs)) |
| 185 | #t))) |
| 186 | (inputs |
| 187 | `(("postgresql" ,postgresql) |
| 188 | ,@(map (lambda (extension) (list "extension" extension)) |
| 189 | extension-packages)))))) |
| 190 | |
| 191 | (define postgresql-activation |
| 192 | (match-lambda |
| 193 | (($ <postgresql-configuration> postgresql port locale config-file data-directory |
| 194 | extension-packages) |
| 195 | #~(begin |
| 196 | (use-modules (guix build utils) |
| 197 | (ice-9 match)) |
| 198 | |
| 199 | (let ((user (getpwnam "postgres")) |
| 200 | (initdb (string-append #$(final-postgresql postgresql extension-packages) |
| 201 | "/bin/initdb")) |
| 202 | (initdb-args |
| 203 | (append |
| 204 | (if #$locale |
| 205 | (list (string-append "--locale=" #$locale)) |
| 206 | '())))) |
| 207 | ;; Create db state directory. |
| 208 | (mkdir-p #$data-directory) |
| 209 | (chown #$data-directory (passwd:uid user) (passwd:gid user)) |
| 210 | |
| 211 | ;; Drop privileges and init state directory in a new |
| 212 | ;; process. Wait for it to finish before proceeding. |
| 213 | (match (primitive-fork) |
| 214 | (0 |
| 215 | ;; Exit with a non-zero status code if an exception is thrown. |
| 216 | (dynamic-wind |
| 217 | (const #t) |
| 218 | (lambda () |
| 219 | (setgid (passwd:gid user)) |
| 220 | (setuid (passwd:uid user)) |
| 221 | (primitive-exit |
| 222 | (apply system* |
| 223 | initdb |
| 224 | "-D" |
| 225 | #$data-directory |
| 226 | initdb-args))) |
| 227 | (lambda () |
| 228 | (primitive-exit 1)))) |
| 229 | (pid (waitpid pid)))))))) |
| 230 | |
| 231 | (define postgresql-shepherd-service |
| 232 | (match-lambda |
| 233 | (($ <postgresql-configuration> postgresql port locale config-file data-directory |
| 234 | extension-packages) |
| 235 | (let* ((pg_ctl-wrapper |
| 236 | ;; Wrapper script that switches to the 'postgres' user before |
| 237 | ;; launching daemon. |
| 238 | (program-file |
| 239 | "pg_ctl-wrapper" |
| 240 | #~(begin |
| 241 | (use-modules (ice-9 match) |
| 242 | (ice-9 format)) |
| 243 | (match (command-line) |
| 244 | ((_ mode) |
| 245 | (let ((user (getpwnam "postgres")) |
| 246 | (pg_ctl #$(file-append (final-postgresql postgresql extension-packages) |
| 247 | "/bin/pg_ctl")) |
| 248 | (options (format #f "--config-file=~a -p ~d" |
| 249 | #$config-file #$port))) |
| 250 | (setgid (passwd:gid user)) |
| 251 | (setuid (passwd:uid user)) |
| 252 | (execl pg_ctl pg_ctl "-D" #$data-directory "-o" options |
| 253 | mode))))))) |
| 254 | (pid-file (in-vicinity data-directory "postmaster.pid")) |
| 255 | (action (lambda args |
| 256 | #~(lambda _ |
| 257 | (invoke #$pg_ctl-wrapper #$@args) |
| 258 | (match '#$args |
| 259 | (("start") |
| 260 | (call-with-input-file #$pid-file read)) |
| 261 | (_ #t)))))) |
| 262 | (list (shepherd-service |
| 263 | (provision '(postgres)) |
| 264 | (documentation "Run the PostgreSQL daemon.") |
| 265 | (requirement '(user-processes loopback syslogd)) |
| 266 | (modules `((ice-9 match) |
| 267 | ,@%default-modules)) |
| 268 | (start (action "start")) |
| 269 | (stop (action "stop")))))))) |
| 270 | |
| 271 | (define postgresql-service-type |
| 272 | (service-type (name 'postgresql) |
| 273 | (extensions |
| 274 | (list (service-extension shepherd-root-service-type |
| 275 | postgresql-shepherd-service) |
| 276 | (service-extension activation-service-type |
| 277 | postgresql-activation) |
| 278 | (service-extension account-service-type |
| 279 | (const %postgresql-accounts)))) |
| 280 | (default-value (postgresql-configuration)))) |
| 281 | |
| 282 | (define* (postgresql-service #:key (postgresql postgresql) |
| 283 | (port 5432) |
| 284 | (locale "en_US.utf8") |
| 285 | (config-file (postgresql-config-file)) |
| 286 | (data-directory "/var/lib/postgresql/data") |
| 287 | (extension-packages '())) |
| 288 | "Return a service that runs @var{postgresql}, the PostgreSQL database server. |
| 289 | |
| 290 | The PostgreSQL daemon loads its runtime configuration from @var{config-file} |
| 291 | and stores the database cluster in @var{data-directory}." |
| 292 | (service postgresql-service-type |
| 293 | (postgresql-configuration |
| 294 | (postgresql postgresql) |
| 295 | (port port) |
| 296 | (locale locale) |
| 297 | (config-file config-file) |
| 298 | (data-directory data-directory) |
| 299 | (extension-packages extension-packages)))) |
| 300 | |
| 301 | \f |
| 302 | ;;; |
| 303 | ;;; Memcached |
| 304 | ;;; |
| 305 | |
| 306 | (define-record-type* <memcached-configuration> |
| 307 | memcached-configuration make-memcached-configuration |
| 308 | memcached-configuration? |
| 309 | (memcached memcached-configuration-memcached ;<package> |
| 310 | (default memcached)) |
| 311 | (interfaces memcached-configuration-interfaces |
| 312 | (default '("0.0.0.0"))) |
| 313 | (tcp-port memcached-configuration-tcp-port |
| 314 | (default 11211)) |
| 315 | (udp-port memcached-configuration-udp-port |
| 316 | (default 11211)) |
| 317 | (additional-options memcached-configuration-additional-options |
| 318 | (default '()))) |
| 319 | |
| 320 | (define %memcached-accounts |
| 321 | (list (user-group (name "memcached") (system? #t)) |
| 322 | (user-account |
| 323 | (name "memcached") |
| 324 | (group "memcached") |
| 325 | (system? #t) |
| 326 | (comment "Memcached server user") |
| 327 | (home-directory "/var/empty") |
| 328 | (shell (file-append shadow "/sbin/nologin"))))) |
| 329 | |
| 330 | (define memcached-activation |
| 331 | #~(begin |
| 332 | (use-modules (guix build utils)) |
| 333 | (let ((user (getpwnam "memcached"))) |
| 334 | (mkdir-p "/var/run/memcached") |
| 335 | (chown "/var/run/memcached" |
| 336 | (passwd:uid user) (passwd:gid user))))) |
| 337 | |
| 338 | (define memcached-shepherd-service |
| 339 | (match-lambda |
| 340 | (($ <memcached-configuration> memcached interfaces tcp-port udp-port |
| 341 | additional-options) |
| 342 | (with-imported-modules (source-module-closure |
| 343 | '((gnu build shepherd))) |
| 344 | (list (shepherd-service |
| 345 | (provision '(memcached)) |
| 346 | (documentation "Run the Memcached daemon.") |
| 347 | (requirement '(user-processes loopback)) |
| 348 | (modules '((gnu build shepherd))) |
| 349 | (start #~(make-forkexec-constructor |
| 350 | `(#$(file-append memcached "/bin/memcached") |
| 351 | "-l" #$(string-join interfaces ",") |
| 352 | "-p" #$(number->string tcp-port) |
| 353 | "-U" #$(number->string udp-port) |
| 354 | "--daemon" |
| 355 | ;; Memcached changes to the memcached user prior to |
| 356 | ;; writing the pid file, so write it to a directory |
| 357 | ;; that memcached owns. |
| 358 | "-P" "/var/run/memcached/pid" |
| 359 | "-u" "memcached" |
| 360 | ,#$@additional-options) |
| 361 | #:log-file "/var/log/memcached" |
| 362 | #:pid-file "/var/run/memcached/pid")) |
| 363 | (stop #~(make-kill-destructor)))))))) |
| 364 | |
| 365 | (define memcached-service-type |
| 366 | (service-type (name 'memcached) |
| 367 | (extensions |
| 368 | (list (service-extension shepherd-root-service-type |
| 369 | memcached-shepherd-service) |
| 370 | (service-extension activation-service-type |
| 371 | (const memcached-activation)) |
| 372 | (service-extension account-service-type |
| 373 | (const %memcached-accounts)))) |
| 374 | (default-value (memcached-configuration)))) |
| 375 | |
| 376 | \f |
| 377 | ;;; |
| 378 | ;;; MongoDB |
| 379 | ;;; |
| 380 | |
| 381 | (define %default-mongodb-configuration-file |
| 382 | (plain-file |
| 383 | "mongodb.yaml" |
| 384 | "# GNU Guix: MongoDB default configuration file |
| 385 | processManagement: |
| 386 | pidFilePath: /var/run/mongodb/pid |
| 387 | storage: |
| 388 | dbPath: /var/lib/mongodb |
| 389 | ")) |
| 390 | |
| 391 | |
| 392 | (define-record-type* <mongodb-configuration> |
| 393 | mongodb-configuration make-mongodb-configuration |
| 394 | mongodb-configuration? |
| 395 | (mongodb mongodb-configuration-mongodb |
| 396 | (default mongodb)) |
| 397 | (config-file mongodb-configuration-config-file |
| 398 | (default %default-mongodb-configuration-file)) |
| 399 | (data-directory mongodb-configuration-data-directory |
| 400 | (default "/var/lib/mongodb"))) |
| 401 | |
| 402 | (define %mongodb-accounts |
| 403 | (list (user-group (name "mongodb") (system? #t)) |
| 404 | (user-account |
| 405 | (name "mongodb") |
| 406 | (group "mongodb") |
| 407 | (system? #t) |
| 408 | (comment "Mongodb server user") |
| 409 | (home-directory "/var/lib/mongodb") |
| 410 | (shell (file-append shadow "/sbin/nologin"))))) |
| 411 | |
| 412 | (define mongodb-activation |
| 413 | (match-lambda |
| 414 | (($ <mongodb-configuration> mongodb config-file data-directory) |
| 415 | #~(begin |
| 416 | (use-modules (guix build utils)) |
| 417 | (let ((user (getpwnam "mongodb"))) |
| 418 | (for-each |
| 419 | (lambda (directory) |
| 420 | (mkdir-p directory) |
| 421 | (chown directory |
| 422 | (passwd:uid user) (passwd:gid user))) |
| 423 | '("/var/run/mongodb" #$data-directory))))))) |
| 424 | |
| 425 | (define mongodb-shepherd-service |
| 426 | (match-lambda |
| 427 | (($ <mongodb-configuration> mongodb config-file data-directory) |
| 428 | (shepherd-service |
| 429 | (provision '(mongodb)) |
| 430 | (documentation "Run the Mongodb daemon.") |
| 431 | (requirement '(user-processes loopback)) |
| 432 | (start #~(make-forkexec-constructor |
| 433 | `(,(string-append #$mongodb "/bin/mongod") |
| 434 | "--config" |
| 435 | ,#$config-file) |
| 436 | #:user "mongodb" |
| 437 | #:group "mongodb" |
| 438 | #:pid-file "/var/run/mongodb/pid" |
| 439 | #:log-file "/var/log/mongodb.log")) |
| 440 | (stop #~(make-kill-destructor)))))) |
| 441 | |
| 442 | (define mongodb-service-type |
| 443 | (service-type |
| 444 | (name 'mongodb) |
| 445 | (description "Run the MongoDB document database server.") |
| 446 | (extensions |
| 447 | (list (service-extension shepherd-root-service-type |
| 448 | (compose list |
| 449 | mongodb-shepherd-service)) |
| 450 | (service-extension activation-service-type |
| 451 | mongodb-activation) |
| 452 | (service-extension account-service-type |
| 453 | (const %mongodb-accounts)))) |
| 454 | (default-value |
| 455 | (mongodb-configuration)))) |
| 456 | |
| 457 | \f |
| 458 | ;;; |
| 459 | ;;; MySQL. |
| 460 | ;;; |
| 461 | |
| 462 | (define-record-type* <mysql-configuration> |
| 463 | mysql-configuration make-mysql-configuration |
| 464 | mysql-configuration? |
| 465 | (mysql mysql-configuration-mysql (default mariadb)) |
| 466 | (port mysql-configuration-port (default 3306)) |
| 467 | (extra-content mysql-configuration-extra-content (default ""))) |
| 468 | |
| 469 | (define %mysql-accounts |
| 470 | (list (user-group |
| 471 | (name "mysql") |
| 472 | (system? #t)) |
| 473 | (user-account |
| 474 | (name "mysql") |
| 475 | (group "mysql") |
| 476 | (system? #t) |
| 477 | (home-directory "/var/empty") |
| 478 | (shell (file-append shadow "/sbin/nologin"))))) |
| 479 | |
| 480 | (define mysql-configuration-file |
| 481 | (match-lambda |
| 482 | (($ <mysql-configuration> mysql port extra-content) |
| 483 | (mixed-text-file "my.cnf" "[mysqld] |
| 484 | datadir=/var/lib/mysql |
| 485 | socket=/run/mysqld/mysqld.sock |
| 486 | port=" (number->string port) " |
| 487 | " extra-content " |
| 488 | ")))) |
| 489 | |
| 490 | (define (%mysql-activation config) |
| 491 | "Return an activation gexp for the MySQL or MariaDB database server." |
| 492 | (let ((mysql (mysql-configuration-mysql config)) |
| 493 | (my.cnf (mysql-configuration-file config))) |
| 494 | #~(begin |
| 495 | (use-modules (ice-9 popen) |
| 496 | (guix build utils)) |
| 497 | (let* ((mysqld (string-append #$mysql "/bin/mysqld")) |
| 498 | (user (getpwnam "mysql")) |
| 499 | (uid (passwd:uid user)) |
| 500 | (gid (passwd:gid user)) |
| 501 | (datadir "/var/lib/mysql") |
| 502 | (rundir "/run/mysqld")) |
| 503 | (mkdir-p datadir) |
| 504 | (chown datadir uid gid) |
| 505 | (mkdir-p rundir) |
| 506 | (chown rundir uid gid) |
| 507 | ;; Initialize the database when it doesn't exist. |
| 508 | (when (not (file-exists? (string-append datadir "/mysql"))) |
| 509 | (if (string-prefix? "mysql-" (strip-store-file-name #$mysql)) |
| 510 | ;; For MySQL. |
| 511 | (system* mysqld |
| 512 | (string-append "--defaults-file=" #$my.cnf) |
| 513 | "--initialize" |
| 514 | "--user=mysql") |
| 515 | ;; For MariaDB. |
| 516 | ;; XXX: The 'mysql_install_db' script doesn't work directly |
| 517 | ;; due to missing 'mkdir' in PATH. |
| 518 | (let ((p (open-pipe* OPEN_WRITE mysqld |
| 519 | (string-append |
| 520 | "--defaults-file=" #$my.cnf) |
| 521 | "--bootstrap" |
| 522 | "--user=mysql"))) |
| 523 | ;; Create the system database, as does by 'mysql_install_db'. |
| 524 | (display "create database mysql;\n" p) |
| 525 | (display "use mysql;\n" p) |
| 526 | (for-each |
| 527 | (lambda (sql) |
| 528 | (call-with-input-file |
| 529 | (string-append #$mysql:lib "/share/mysql/" sql) |
| 530 | (lambda (in) (dump-port in p)))) |
| 531 | '("mysql_system_tables.sql" |
| 532 | "mysql_performance_tables.sql" |
| 533 | "mysql_system_tables_data.sql" |
| 534 | "fill_help_tables.sql")) |
| 535 | ;; Remove the anonymous user and disable root access from |
| 536 | ;; remote machines, as does by 'mysql_secure_installation'. |
| 537 | (display " |
| 538 | DELETE FROM user WHERE User=''; |
| 539 | DELETE FROM user WHERE User='root' AND |
| 540 | Host NOT IN ('localhost', '127.0.0.1', '::1'); |
| 541 | FLUSH PRIVILEGES; |
| 542 | " p) |
| 543 | (close-pipe p)))))))) |
| 544 | |
| 545 | (define (mysql-shepherd-service config) |
| 546 | (list (shepherd-service |
| 547 | (provision '(mysql)) |
| 548 | (documentation "Run the MySQL server.") |
| 549 | (start (let ((mysql (mysql-configuration-mysql config)) |
| 550 | (my.cnf (mysql-configuration-file config))) |
| 551 | #~(make-forkexec-constructor |
| 552 | (list (string-append #$mysql "/bin/mysqld") |
| 553 | (string-append "--defaults-file=" #$my.cnf)) |
| 554 | #:user "mysql" #:group "mysql"))) |
| 555 | (stop #~(make-kill-destructor))))) |
| 556 | |
| 557 | (define mysql-service-type |
| 558 | (service-type |
| 559 | (name 'mysql) |
| 560 | (extensions |
| 561 | (list (service-extension account-service-type |
| 562 | (const %mysql-accounts)) |
| 563 | (service-extension activation-service-type |
| 564 | %mysql-activation) |
| 565 | (service-extension shepherd-root-service-type |
| 566 | mysql-shepherd-service))) |
| 567 | (default-value (mysql-configuration)))) |
| 568 | |
| 569 | (define* (mysql-service #:key (config (mysql-configuration))) |
| 570 | "Return a service that runs @command{mysqld}, the MySQL or MariaDB |
| 571 | database server. |
| 572 | |
| 573 | The optional @var{config} argument specifies the configuration for |
| 574 | @command{mysqld}, which should be a @code{<mysql-configuration>} object." |
| 575 | (service mysql-service-type config)) |
| 576 | |
| 577 | \f |
| 578 | ;;; |
| 579 | ;;; Redis |
| 580 | ;;; |
| 581 | |
| 582 | (define-record-type* <redis-configuration> |
| 583 | redis-configuration make-redis-configuration |
| 584 | redis-configuration? |
| 585 | (redis redis-configuration-redis ;<package> |
| 586 | (default redis)) |
| 587 | (bind redis-configuration-bind |
| 588 | (default "127.0.0.1")) |
| 589 | (port redis-configuration-port |
| 590 | (default 6379)) |
| 591 | (working-directory redis-configuration-working-directory |
| 592 | (default "/var/lib/redis")) |
| 593 | (config-file redis-configuration-config-file |
| 594 | (default #f))) |
| 595 | |
| 596 | (define (default-redis.conf bind port working-directory) |
| 597 | (mixed-text-file "redis.conf" |
| 598 | "bind " bind "\n" |
| 599 | "port " (number->string port) "\n" |
| 600 | "dir " working-directory "\n" |
| 601 | "daemonize no\n")) |
| 602 | |
| 603 | (define %redis-accounts |
| 604 | (list (user-group (name "redis") (system? #t)) |
| 605 | (user-account |
| 606 | (name "redis") |
| 607 | (group "redis") |
| 608 | (system? #t) |
| 609 | (comment "Redis server user") |
| 610 | (home-directory "/var/empty") |
| 611 | (shell (file-append shadow "/sbin/nologin"))))) |
| 612 | |
| 613 | (define redis-activation |
| 614 | (match-lambda |
| 615 | (($ <redis-configuration> redis bind port working-directory config-file) |
| 616 | #~(begin |
| 617 | (use-modules (guix build utils) |
| 618 | (ice-9 match)) |
| 619 | |
| 620 | (let ((user (getpwnam "redis"))) |
| 621 | (mkdir-p #$working-directory) |
| 622 | (chown #$working-directory (passwd:uid user) (passwd:gid user))))))) |
| 623 | |
| 624 | (define redis-shepherd-service |
| 625 | (match-lambda |
| 626 | (($ <redis-configuration> redis bind port working-directory config-file) |
| 627 | (let ((config-file |
| 628 | (or config-file |
| 629 | (default-redis.conf bind port working-directory)))) |
| 630 | (list (shepherd-service |
| 631 | (provision '(redis)) |
| 632 | (documentation "Run the Redis daemon.") |
| 633 | (requirement '(user-processes syslogd)) |
| 634 | (start #~(make-forkexec-constructor |
| 635 | '(#$(file-append redis "/bin/redis-server") |
| 636 | #$config-file) |
| 637 | #:user "redis" |
| 638 | #:group "redis")) |
| 639 | (stop #~(make-kill-destructor)))))))) |
| 640 | |
| 641 | (define redis-service-type |
| 642 | (service-type (name 'redis) |
| 643 | (extensions |
| 644 | (list (service-extension shepherd-root-service-type |
| 645 | redis-shepherd-service) |
| 646 | (service-extension activation-service-type |
| 647 | redis-activation) |
| 648 | (service-extension account-service-type |
| 649 | (const %redis-accounts)))) |
| 650 | (default-value (redis-configuration)))) |