mirror of
https://git.in.rschanz.org/ryan77627/guix.git
synced 2024-12-26 06:18:07 -05:00
67cadaca47
* gnu/services/database.scm (<redis-configuration>): New record type. (%redis-accounts, redis-service-type): New variables. (default-redis.conf, redis-activation, redis-shepherd-service): New procedures. * doc/guix.texi (Database Services): Document the new redis service. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
368 lines
14 KiB
Scheme
368 lines
14 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
|
||
;;; Copyright © 2015 David Thompson <davet@gnu.org>
|
||
;;; Copyright © 2015, 2016 Ludovic Courtès <ludo@gnu.org>
|
||
;;; Copyright © 2016 Leo Famulari <leo@famulari.name>
|
||
;;; 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 databases)
|
||
#:use-module (gnu services)
|
||
#:use-module (gnu services shepherd)
|
||
#:use-module (gnu system shadow)
|
||
#:use-module (gnu packages admin)
|
||
#:use-module (gnu packages databases)
|
||
#:use-module (guix records)
|
||
#:use-module (guix gexp)
|
||
#:use-module (ice-9 match)
|
||
#:export (postgresql-configuration
|
||
postgresql-configuration?
|
||
postgresql-service
|
||
postgresql-service-type
|
||
|
||
mysql-service
|
||
mysql-service-type
|
||
mysql-configuration
|
||
mysql-configuration?
|
||
|
||
redis-configuration
|
||
redis-configuration?
|
||
redis-service-type))
|
||
|
||
;;; Commentary:
|
||
;;;
|
||
;;; Database services.
|
||
;;;
|
||
;;; Code:
|
||
|
||
(define-record-type* <postgresql-configuration>
|
||
postgresql-configuration make-postgresql-configuration
|
||
postgresql-configuration?
|
||
(postgresql postgresql-configuration-postgresql ;<package>
|
||
(default postgresql))
|
||
(port postgresql-configuration-port
|
||
(default 5432))
|
||
(locale postgresql-configuration-locale
|
||
(default "en_US.utf8"))
|
||
(config-file postgresql-configuration-file)
|
||
(data-directory postgresql-configuration-data-directory))
|
||
|
||
(define %default-postgres-hba
|
||
(plain-file "pg_hba.conf"
|
||
"
|
||
local all all trust
|
||
host all all 127.0.0.1/32 trust
|
||
host all all ::1/128 trust"))
|
||
|
||
(define %default-postgres-ident
|
||
(plain-file "pg_ident.conf"
|
||
"# MAPNAME SYSTEM-USERNAME PG-USERNAME"))
|
||
|
||
(define %default-postgres-config
|
||
(mixed-text-file "postgresql.conf"
|
||
"log_destination = 'syslog'\n"
|
||
"hba_file = '" %default-postgres-hba "'\n"
|
||
"ident_file = '" %default-postgres-ident "'\n"))
|
||
|
||
(define %postgresql-accounts
|
||
(list (user-group (name "postgres") (system? #t))
|
||
(user-account
|
||
(name "postgres")
|
||
(group "postgres")
|
||
(system? #t)
|
||
(comment "PostgreSQL server user")
|
||
(home-directory "/var/empty")
|
||
(shell (file-append shadow "/sbin/nologin")))))
|
||
|
||
(define postgresql-activation
|
||
(match-lambda
|
||
(($ <postgresql-configuration> postgresql port locale config-file data-directory)
|
||
#~(begin
|
||
(use-modules (guix build utils)
|
||
(ice-9 match))
|
||
|
||
(let ((user (getpwnam "postgres"))
|
||
(initdb (string-append #$postgresql "/bin/initdb"))
|
||
(initdb-args
|
||
(append
|
||
(if #$locale
|
||
(list (string-append "--locale=" #$locale))
|
||
'()))))
|
||
;; Create db state directory.
|
||
(mkdir-p #$data-directory)
|
||
(chown #$data-directory (passwd:uid user) (passwd:gid user))
|
||
|
||
;; Drop privileges and init state directory in a new
|
||
;; process. Wait for it to finish before proceeding.
|
||
(match (primitive-fork)
|
||
(0
|
||
;; Exit with a non-zero status code if an exception is thrown.
|
||
(dynamic-wind
|
||
(const #t)
|
||
(lambda ()
|
||
(setgid (passwd:gid user))
|
||
(setuid (passwd:uid user))
|
||
(primitive-exit
|
||
(apply system*
|
||
initdb
|
||
"-D"
|
||
#$data-directory
|
||
initdb-args)))
|
||
(lambda ()
|
||
(primitive-exit 1))))
|
||
(pid (waitpid pid))))))))
|
||
|
||
(define postgresql-shepherd-service
|
||
(match-lambda
|
||
(($ <postgresql-configuration> postgresql port locale config-file data-directory)
|
||
(let ((start-script
|
||
;; Wrapper script that switches to the 'postgres' user before
|
||
;; launching daemon.
|
||
(program-file "start-postgres"
|
||
#~(let ((user (getpwnam "postgres"))
|
||
(postgres (string-append #$postgresql
|
||
"/bin/postgres")))
|
||
(setgid (passwd:gid user))
|
||
(setuid (passwd:uid user))
|
||
(system* postgres
|
||
(string-append "--config-file="
|
||
#$config-file)
|
||
"-p" (number->string #$port)
|
||
"-D" #$data-directory)))))
|
||
(list (shepherd-service
|
||
(provision '(postgres))
|
||
(documentation "Run the PostgreSQL daemon.")
|
||
(requirement '(user-processes loopback syslogd))
|
||
(start #~(make-forkexec-constructor #$start-script))
|
||
(stop #~(make-kill-destructor))))))))
|
||
|
||
(define postgresql-service-type
|
||
(service-type (name 'postgresql)
|
||
(extensions
|
||
(list (service-extension shepherd-root-service-type
|
||
postgresql-shepherd-service)
|
||
(service-extension activation-service-type
|
||
postgresql-activation)
|
||
(service-extension account-service-type
|
||
(const %postgresql-accounts))))))
|
||
|
||
(define* (postgresql-service #:key (postgresql postgresql)
|
||
(port 5432)
|
||
(locale "en_US.utf8")
|
||
(config-file %default-postgres-config)
|
||
(data-directory "/var/lib/postgresql/data"))
|
||
"Return a service that runs @var{postgresql}, the PostgreSQL database server.
|
||
|
||
The PostgreSQL daemon loads its runtime configuration from @var{config-file}
|
||
and stores the database cluster in @var{data-directory}."
|
||
(service postgresql-service-type
|
||
(postgresql-configuration
|
||
(postgresql postgresql)
|
||
(port port)
|
||
(locale locale)
|
||
(config-file config-file)
|
||
(data-directory data-directory))))
|
||
|
||
|
||
;;;
|
||
;;; MySQL.
|
||
;;;
|
||
|
||
(define-record-type* <mysql-configuration>
|
||
mysql-configuration make-mysql-configuration
|
||
mysql-configuration?
|
||
(mysql mysql-configuration-mysql (default mariadb))
|
||
(port mysql-configuration-port (default 3306)))
|
||
|
||
(define %mysql-accounts
|
||
(list (user-group
|
||
(name "mysql")
|
||
(system? #t))
|
||
(user-account
|
||
(name "mysql")
|
||
(group "mysql")
|
||
(system? #t)
|
||
(home-directory "/var/empty")
|
||
(shell (file-append shadow "/sbin/nologin")))))
|
||
|
||
(define mysql-configuration-file
|
||
(match-lambda
|
||
(($ <mysql-configuration> mysql port)
|
||
(mixed-text-file "my.cnf" "[mysqld]
|
||
datadir=/var/lib/mysql
|
||
socket=/run/mysqld/mysqld.sock
|
||
port=" (number->string port) "
|
||
"))))
|
||
|
||
(define (%mysql-activation config)
|
||
"Return an activation gexp for the MySQL or MariaDB database server."
|
||
(let ((mysql (mysql-configuration-mysql config))
|
||
(my.cnf (mysql-configuration-file config)))
|
||
#~(begin
|
||
(use-modules (ice-9 popen)
|
||
(guix build utils))
|
||
(let* ((mysqld (string-append #$mysql "/bin/mysqld"))
|
||
(user (getpwnam "mysql"))
|
||
(uid (passwd:uid user))
|
||
(gid (passwd:gid user))
|
||
(datadir "/var/lib/mysql")
|
||
(rundir "/run/mysqld"))
|
||
(mkdir-p datadir)
|
||
(chown datadir uid gid)
|
||
(mkdir-p rundir)
|
||
(chown rundir uid gid)
|
||
;; Initialize the database when it doesn't exist.
|
||
(when (not (file-exists? (string-append datadir "/mysql")))
|
||
(if (string-prefix? "mysql-" (strip-store-file-name #$mysql))
|
||
;; For MySQL.
|
||
(system* mysqld
|
||
(string-append "--defaults-file=" #$my.cnf)
|
||
"--initialize"
|
||
"--user=mysql")
|
||
;; For MariaDB.
|
||
;; XXX: The 'mysql_install_db' script doesn't work directly
|
||
;; due to missing 'mkdir' in PATH.
|
||
(let ((p (open-pipe* OPEN_WRITE mysqld
|
||
(string-append
|
||
"--defaults-file=" #$my.cnf)
|
||
"--bootstrap"
|
||
"--user=mysql")))
|
||
;; Create the system database, as does by 'mysql_install_db'.
|
||
(display "create database mysql;\n" p)
|
||
(display "use mysql;\n" p)
|
||
(for-each
|
||
(lambda (sql)
|
||
(call-with-input-file
|
||
(string-append #$mysql "/share/mysql/" sql)
|
||
(lambda (in) (dump-port in p))))
|
||
'("mysql_system_tables.sql"
|
||
"mysql_performance_tables.sql"
|
||
"mysql_system_tables_data.sql"
|
||
"fill_help_tables.sql"))
|
||
;; Remove the anonymous user and disable root access from
|
||
;; remote machines, as does by 'mysql_secure_installation'.
|
||
(display "
|
||
DELETE FROM user WHERE User='';
|
||
DELETE FROM user WHERE User='root' AND
|
||
Host NOT IN ('localhost', '127.0.0.1', '::1');
|
||
FLUSH PRIVILEGES;
|
||
" p)
|
||
(close-pipe p))))))))
|
||
|
||
(define (mysql-shepherd-service config)
|
||
(list (shepherd-service
|
||
(provision '(mysql))
|
||
(documentation "Run the MySQL server.")
|
||
(start (let ((mysql (mysql-configuration-mysql config))
|
||
(my.cnf (mysql-configuration-file config)))
|
||
#~(make-forkexec-constructor
|
||
(list (string-append #$mysql "/bin/mysqld")
|
||
(string-append "--defaults-file=" #$my.cnf))
|
||
#:user "mysql" #:group "mysql")))
|
||
(stop #~(make-kill-destructor)))))
|
||
|
||
(define mysql-service-type
|
||
(service-type
|
||
(name 'mysql)
|
||
(extensions
|
||
(list (service-extension account-service-type
|
||
(const %mysql-accounts))
|
||
(service-extension activation-service-type
|
||
%mysql-activation)
|
||
(service-extension shepherd-root-service-type
|
||
mysql-shepherd-service)))))
|
||
|
||
(define* (mysql-service #:key (config (mysql-configuration)))
|
||
"Return a service that runs @command{mysqld}, the MySQL or MariaDB
|
||
database server.
|
||
|
||
The optional @var{config} argument specifies the configuration for
|
||
@command{mysqld}, which should be a @code{<mysql-configuration>} object."
|
||
(service mysql-service-type config))
|
||
|
||
|
||
;;;
|
||
;;; Redis
|
||
;;;
|
||
|
||
(define-record-type* <redis-configuration>
|
||
redis-configuration make-redis-configuration
|
||
redis-configuration?
|
||
(redis redis-configuration-redis ;<package>
|
||
(default redis))
|
||
(bind redis-configuration-bind
|
||
(default "127.0.0.1"))
|
||
(port redis-configuration-port
|
||
(default 6379))
|
||
(working-directory redis-configuration-working-directory
|
||
(default "/var/lib/redis"))
|
||
(config-file redis-configuration-config-file
|
||
(default #f)))
|
||
|
||
(define (default-redis.conf bind port working-directory)
|
||
(mixed-text-file "redis.conf"
|
||
"bind " bind "\n"
|
||
"port " (number->string port) "\n"
|
||
"dir " working-directory "\n"
|
||
"daemonize no\n"))
|
||
|
||
(define %redis-accounts
|
||
(list (user-group (name "redis") (system? #t))
|
||
(user-account
|
||
(name "redis")
|
||
(group "redis")
|
||
(system? #t)
|
||
(comment "Redis server user")
|
||
(home-directory "/var/empty")
|
||
(shell (file-append shadow "/sbin/nologin")))))
|
||
|
||
(define redis-activation
|
||
(match-lambda
|
||
(($ <redis-configuration> redis bind port working-directory config-file)
|
||
#~(begin
|
||
(use-modules (guix build utils)
|
||
(ice-9 match))
|
||
|
||
(let ((user (getpwnam "redis")))
|
||
(mkdir-p #$working-directory)
|
||
(chown #$working-directory (passwd:uid user) (passwd:gid user)))))))
|
||
|
||
(define redis-shepherd-service
|
||
(match-lambda
|
||
(($ <redis-configuration> redis bind port working-directory config-file)
|
||
(let ((config-file
|
||
(or config-file
|
||
(default-redis.conf bind port working-directory))))
|
||
(list (shepherd-service
|
||
(provision '(redis))
|
||
(documentation "Run the Redis daemon.")
|
||
(requirement '(user-processes syslogd))
|
||
(start #~(make-forkexec-constructor
|
||
'(#$(file-append redis "/bin/redis-server")
|
||
#$config-file)
|
||
#:user "redis"
|
||
#:group "redis"))
|
||
(stop #~(make-kill-destructor))))))))
|
||
|
||
(define redis-service-type
|
||
(service-type (name 'redis)
|
||
(extensions
|
||
(list (service-extension shepherd-root-service-type
|
||
redis-shepherd-service)
|
||
(service-extension activation-service-type
|
||
redis-activation)
|
||
(service-extension account-service-type
|
||
(const %redis-accounts))))))
|