617 lines
23 KiB
Scheme
617 lines
23 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>
|
||
;;; Copyright © 2018 Clément Lassieur <clement@lassieur.org>
|
||
;;;
|
||
;;; 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 modules)
|
||
#:use-module (guix records)
|
||
#:use-module (guix gexp)
|
||
#:use-module (srfi srfi-1)
|
||
#:use-module (ice-9 match)
|
||
#:export (<postgresql-config-file>
|
||
postgresql-config-file
|
||
postgresql-config-file?
|
||
postgresql-config-file-log-destination
|
||
postgresql-config-file-hba-file
|
||
postgresql-config-file-ident-file
|
||
postgresql-config-file-extra-config
|
||
|
||
<postgresql-configuration>
|
||
postgresql-configuration
|
||
postgresql-configuration?
|
||
postgresql-configuration-postgresql
|
||
postgresql-configuration-port
|
||
postgresql-configuration-locale
|
||
postgresql-configuration-file
|
||
postgresql-configuration-data-directory
|
||
|
||
postgresql-service
|
||
postgresql-service-type
|
||
|
||
memcached-service-type
|
||
<memcached-configuration>
|
||
memcached-configuration
|
||
memcached-configuration?
|
||
memcached-configuration-memecached
|
||
memcached-configuration-interfaces
|
||
memcached-configuration-tcp-port
|
||
memcached-configuration-udp-port
|
||
memcached-configuration-additional-options
|
||
|
||
<mongodb-configuration>
|
||
mongodb-configuration
|
||
mongodb-configuration?
|
||
mongodb-configuration-mongodb
|
||
mongodb-configuration-config-file
|
||
mongodb-configuration-data-directory
|
||
mongodb-service-type
|
||
|
||
mysql-service
|
||
mysql-service-type
|
||
mysql-configuration
|
||
mysql-configuration?
|
||
|
||
redis-configuration
|
||
redis-configuration?
|
||
redis-service-type))
|
||
|
||
;;; Commentary:
|
||
;;;
|
||
;;; Database services.
|
||
;;;
|
||
;;; Code:
|
||
|
||
(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-record-type* <postgresql-config-file>
|
||
postgresql-config-file make-postgresql-config-file
|
||
postgresql-config-file?
|
||
(log-destination postgresql-config-file-log-destination
|
||
(default "syslog"))
|
||
(hba-file postgresql-config-file-hba-file
|
||
(default %default-postgres-hba))
|
||
(ident-file postgresql-config-file-ident-file
|
||
(default %default-postgres-ident))
|
||
(extra-config postgresql-config-file-extra-config
|
||
(default '())))
|
||
|
||
(define-gexp-compiler (postgresql-config-file-compiler
|
||
(file <postgresql-config-file>) system target)
|
||
(match file
|
||
(($ <postgresql-config-file> log-destination hba-file
|
||
ident-file extra-config)
|
||
(define (single-quote string)
|
||
(if string
|
||
(list "'" string "'")
|
||
'()))
|
||
|
||
(define contents
|
||
(append-map
|
||
(match-lambda
|
||
((key) '())
|
||
((key . #f) '())
|
||
((key values ...) `(,key " = " ,@values "\n")))
|
||
|
||
`(("log_destination" ,@(single-quote log-destination))
|
||
("hba_file" ,@(single-quote hba-file))
|
||
("ident_file" ,@(single-quote ident-file))
|
||
,@extra-config)))
|
||
|
||
(gexp->derivation
|
||
"postgresql.conf"
|
||
#~(call-with-output-file (ungexp output "out")
|
||
(lambda (port)
|
||
(display
|
||
(string-append #$@contents)
|
||
port)))
|
||
#:local-build? #t))))
|
||
|
||
(define-record-type* <postgresql-configuration>
|
||
postgresql-configuration make-postgresql-configuration
|
||
postgresql-configuration?
|
||
(postgresql postgresql-configuration-postgresql ;<package>
|
||
(default postgresql))
|
||
(port postgresql-configuration-port
|
||
(default 5432))
|
||
(locale postgresql-configuration-locale
|
||
(default "en_US.utf8"))
|
||
(config-file postgresql-configuration-file
|
||
(default (postgresql-config-file)))
|
||
(data-directory postgresql-configuration-data-directory
|
||
(default "/var/lib/postgresql/data")))
|
||
|
||
(define %postgresql-accounts
|
||
(list (user-group (name "postgres") (system? #t))
|
||
(user-account
|
||
(name "postgres")
|
||
(group "postgres")
|
||
(system? #t)
|
||
(comment "PostgreSQL server user")
|
||
(home-directory "/var/empty")
|
||
(shell (file-append shadow "/sbin/nologin")))))
|
||
|
||
(define postgresql-activation
|
||
(match-lambda
|
||
(($ <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* ((pg_ctl-wrapper
|
||
;; Wrapper script that switches to the 'postgres' user before
|
||
;; launching daemon.
|
||
(program-file
|
||
"pg_ctl-wrapper"
|
||
#~(begin
|
||
(use-modules (ice-9 match)
|
||
(ice-9 format))
|
||
(match (command-line)
|
||
((_ mode)
|
||
(let ((user (getpwnam "postgres"))
|
||
(pg_ctl #$(file-append postgresql "/bin/pg_ctl"))
|
||
(options (format #f "--config-file=~a -p ~d"
|
||
#$config-file #$port)))
|
||
(setgid (passwd:gid user))
|
||
(setuid (passwd:uid user))
|
||
(execl pg_ctl pg_ctl "-D" #$data-directory "-o" options
|
||
mode)))))))
|
||
(pid-file (in-vicinity data-directory "postmaster.pid"))
|
||
(action (lambda args
|
||
#~(lambda _
|
||
(invoke #$pg_ctl-wrapper #$@args)
|
||
(match '#$args
|
||
(("start")
|
||
(call-with-input-file #$pid-file read))
|
||
(_ #t))))))
|
||
(list (shepherd-service
|
||
(provision '(postgres))
|
||
(documentation "Run the PostgreSQL daemon.")
|
||
(requirement '(user-processes loopback syslogd))
|
||
(modules `((ice-9 match)
|
||
,@%default-modules))
|
||
(start (action "start"))
|
||
(stop (action "stop"))))))))
|
||
|
||
(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))))
|
||
(default-value (postgresql-configuration))))
|
||
|
||
(define* (postgresql-service #:key (postgresql postgresql)
|
||
(port 5432)
|
||
(locale "en_US.utf8")
|
||
(config-file (postgresql-config-file))
|
||
(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))))
|
||
|
||
|
||
;;;
|
||
;;; Memcached
|
||
;;;
|
||
|
||
(define-record-type* <memcached-configuration>
|
||
memcached-configuration make-memcached-configuration
|
||
memcached-configuration?
|
||
(memcached memcached-configuration-memcached ;<package>
|
||
(default memcached))
|
||
(interfaces memcached-configuration-interfaces
|
||
(default '("0.0.0.0")))
|
||
(tcp-port memcached-configuration-tcp-port
|
||
(default 11211))
|
||
(udp-port memcached-configuration-udp-port
|
||
(default 11211))
|
||
(additional-options memcached-configuration-additional-options
|
||
(default '())))
|
||
|
||
(define %memcached-accounts
|
||
(list (user-group (name "memcached") (system? #t))
|
||
(user-account
|
||
(name "memcached")
|
||
(group "memcached")
|
||
(system? #t)
|
||
(comment "Memcached server user")
|
||
(home-directory "/var/empty")
|
||
(shell (file-append shadow "/sbin/nologin")))))
|
||
|
||
(define memcached-activation
|
||
#~(begin
|
||
(use-modules (guix build utils))
|
||
(let ((user (getpwnam "memcached")))
|
||
(mkdir-p "/var/run/memcached")
|
||
(chown "/var/run/memcached"
|
||
(passwd:uid user) (passwd:gid user)))))
|
||
|
||
(define memcached-shepherd-service
|
||
(match-lambda
|
||
(($ <memcached-configuration> memcached interfaces tcp-port udp-port
|
||
additional-options)
|
||
(with-imported-modules (source-module-closure
|
||
'((gnu build shepherd)))
|
||
(list (shepherd-service
|
||
(provision '(memcached))
|
||
(documentation "Run the Memcached daemon.")
|
||
(requirement '(user-processes loopback))
|
||
(modules '((gnu build shepherd)))
|
||
(start #~(make-forkexec-constructor
|
||
`(#$(file-append memcached "/bin/memcached")
|
||
"-l" #$(string-join interfaces ",")
|
||
"-p" #$(number->string tcp-port)
|
||
"-U" #$(number->string udp-port)
|
||
"--daemon"
|
||
;; Memcached changes to the memcached user prior to
|
||
;; writing the pid file, so write it to a directory
|
||
;; that memcached owns.
|
||
"-P" "/var/run/memcached/pid"
|
||
"-u" "memcached"
|
||
,#$@additional-options)
|
||
#:log-file "/var/log/memcached"
|
||
#:pid-file "/var/run/memcached/pid"))
|
||
(stop #~(make-kill-destructor))))))))
|
||
|
||
(define memcached-service-type
|
||
(service-type (name 'memcached)
|
||
(extensions
|
||
(list (service-extension shepherd-root-service-type
|
||
memcached-shepherd-service)
|
||
(service-extension activation-service-type
|
||
(const memcached-activation))
|
||
(service-extension account-service-type
|
||
(const %memcached-accounts))))
|
||
(default-value (memcached-configuration))))
|
||
|
||
|
||
;;;
|
||
;;; MongoDB
|
||
;;;
|
||
|
||
(define %default-mongodb-configuration-file
|
||
(plain-file
|
||
"mongodb.yaml"
|
||
"# GNU Guix: MongoDB default configuration file
|
||
processManagement:
|
||
pidFilePath: /var/run/mongodb/pid
|
||
storage:
|
||
dbPath: /var/lib/mongodb
|
||
"))
|
||
|
||
|
||
(define-record-type* <mongodb-configuration>
|
||
mongodb-configuration make-mongodb-configuration
|
||
mongodb-configuration?
|
||
(mongodb mongodb-configuration-mongodb
|
||
(default mongodb))
|
||
(config-file mongodb-configuration-config-file
|
||
(default %default-mongodb-configuration-file))
|
||
(data-directory mongodb-configuration-data-directory
|
||
(default "/var/lib/mongodb")))
|
||
|
||
(define %mongodb-accounts
|
||
(list (user-group (name "mongodb") (system? #t))
|
||
(user-account
|
||
(name "mongodb")
|
||
(group "mongodb")
|
||
(system? #t)
|
||
(comment "Mongodb server user")
|
||
(home-directory "/var/lib/mongodb")
|
||
(shell (file-append shadow "/sbin/nologin")))))
|
||
|
||
(define mongodb-activation
|
||
(match-lambda
|
||
(($ <mongodb-configuration> mongodb config-file data-directory)
|
||
#~(begin
|
||
(use-modules (guix build utils))
|
||
(let ((user (getpwnam "mongodb")))
|
||
(for-each
|
||
(lambda (directory)
|
||
(mkdir-p directory)
|
||
(chown directory
|
||
(passwd:uid user) (passwd:gid user)))
|
||
'("/var/run/mongodb" #$data-directory)))))))
|
||
|
||
(define mongodb-shepherd-service
|
||
(match-lambda
|
||
(($ <mongodb-configuration> mongodb config-file data-directory)
|
||
(shepherd-service
|
||
(provision '(mongodb))
|
||
(documentation "Run the Mongodb daemon.")
|
||
(requirement '(user-processes loopback))
|
||
(start #~(make-forkexec-constructor
|
||
`(,(string-append #$mongodb "/bin/mongod")
|
||
"--config"
|
||
,#$config-file)
|
||
#:user "mongodb"
|
||
#:group "mongodb"
|
||
#:pid-file "/var/run/mongodb/pid"
|
||
#:log-file "/var/log/mongodb.log"))
|
||
(stop #~(make-kill-destructor))))))
|
||
|
||
(define mongodb-service-type
|
||
(service-type
|
||
(name 'mongodb)
|
||
(description "Run the MongoDB document database server.")
|
||
(extensions
|
||
(list (service-extension shepherd-root-service-type
|
||
(compose list
|
||
mongodb-shepherd-service))
|
||
(service-extension activation-service-type
|
||
mongodb-activation)
|
||
(service-extension account-service-type
|
||
(const %mongodb-accounts))))
|
||
(default-value
|
||
(mongodb-configuration))))
|
||
|
||
|
||
;;;
|
||
;;; 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=" #$my.cnf))
|
||
#:user "mysql" #:group "mysql")))
|
||
(stop #~(make-kill-destructor)))))
|
||
|
||
(define mysql-service-type
|
||
(service-type
|
||
(name 'mysql)
|
||
(extensions
|
||
(list (service-extension account-service-type
|
||
(const %mysql-accounts))
|
||
(service-extension activation-service-type
|
||
%mysql-activation)
|
||
(service-extension shepherd-root-service-type
|
||
mysql-shepherd-service)))
|
||
(default-value (mysql-configuration))))
|
||
|
||
(define* (mysql-service #:key (config (mysql-configuration)))
|
||
"Return a service that runs @command{mysqld}, the MySQL or MariaDB
|
||
database server.
|
||
|
||
The optional @var{config} argument specifies the configuration for
|
||
@command{mysqld}, which should be a @code{<mysql-configuration>} object."
|
||
(service mysql-service-type config))
|
||
|
||
|
||
;;;
|
||
;;; Redis
|
||
;;;
|
||
|
||
(define-record-type* <redis-configuration>
|
||
redis-configuration make-redis-configuration
|
||
redis-configuration?
|
||
(redis redis-configuration-redis ;<package>
|
||
(default redis))
|
||
(bind redis-configuration-bind
|
||
(default "127.0.0.1"))
|
||
(port redis-configuration-port
|
||
(default 6379))
|
||
(working-directory redis-configuration-working-directory
|
||
(default "/var/lib/redis"))
|
||
(config-file redis-configuration-config-file
|
||
(default #f)))
|
||
|
||
(define (default-redis.conf bind port working-directory)
|
||
(mixed-text-file "redis.conf"
|
||
"bind " bind "\n"
|
||
"port " (number->string port) "\n"
|
||
"dir " working-directory "\n"
|
||
"daemonize no\n"))
|
||
|
||
(define %redis-accounts
|
||
(list (user-group (name "redis") (system? #t))
|
||
(user-account
|
||
(name "redis")
|
||
(group "redis")
|
||
(system? #t)
|
||
(comment "Redis server user")
|
||
(home-directory "/var/empty")
|
||
(shell (file-append shadow "/sbin/nologin")))))
|
||
|
||
(define redis-activation
|
||
(match-lambda
|
||
(($ <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))))
|
||
(default-value (redis-configuration))))
|