762 lines
30 KiB
Scheme
762 lines
30 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>
|
||
;;; Copyright © 2018 Julien Lepiller <julien@lepiller.eu>
|
||
;;; Copyright © 2019 Robert Vollmert <rob@vllmrt.net>
|
||
;;; Copyright © 2020 Marius Bakke <marius@gnu.org>
|
||
;;; Copyright © 2021 David Larsson <david.larsson@selfhosted.xyz>
|
||
;;;
|
||
;;; 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 build-system trivial)
|
||
#:use-module (guix build union)
|
||
#:use-module (guix deprecation)
|
||
#:use-module (guix modules)
|
||
#:use-module (guix packages)
|
||
#: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-log-destination
|
||
postgresql-config-file-hba-file
|
||
postgresql-config-file-ident-file
|
||
postgresql-config-file-socket-directory
|
||
postgresql-config-file-extra-config
|
||
|
||
postgresql-configuration
|
||
postgresql-configuration?
|
||
postgresql-configuration-postgresql
|
||
postgresql-configuration-port
|
||
postgresql-configuration-locale
|
||
postgresql-configuration-file
|
||
postgresql-configuration-log-directory
|
||
postgresql-configuration-data-directory
|
||
|
||
postgresql-service
|
||
postgresql-service-type
|
||
|
||
postgresql-role
|
||
postgresql-role?
|
||
postgresql-role-name
|
||
postgresql-role-permissions
|
||
postgresql-role-create-database?
|
||
postgresql-role-configuration
|
||
postgresql-role-configuration?
|
||
postgresql-role-configuration-host
|
||
postgresql-role-configuration-roles
|
||
|
||
postgresql-role-service-type
|
||
|
||
memcached-service-type
|
||
memcached-configuration
|
||
memcached-configuration?
|
||
memcached-configuration-memecached
|
||
memcached-configuration-interfaces
|
||
memcached-configuration-tcp-port
|
||
memcached-configuration-udp-port
|
||
memcached-configuration-additional-options
|
||
|
||
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 peer
|
||
host all all 127.0.0.1/32 md5
|
||
host all all ::1/128 md5"))
|
||
|
||
(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))
|
||
(socket-directory postgresql-config-file-socket-directory
|
||
(default "/var/run/postgresql"))
|
||
(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 socket-directory
|
||
extra-config)
|
||
;; See: https://www.postgresql.org/docs/current/config-setting.html.
|
||
(define (format-value value)
|
||
(cond
|
||
((boolean? value)
|
||
(list (if value "on" "off")))
|
||
((number? value)
|
||
(list (number->string value)))
|
||
(else
|
||
(list "'" value "'"))))
|
||
|
||
(define contents
|
||
(append-map
|
||
(match-lambda
|
||
((key) '())
|
||
((key . #f) '())
|
||
((key values ...)
|
||
`(,key " = " ,@(append-map format-value values) "\n")))
|
||
|
||
`(("log_destination" ,log-destination)
|
||
("hba_file" ,hba-file)
|
||
("ident_file" ,ident-file)
|
||
,@(if socket-directory
|
||
`(("unix_socket_directories" ,socket-directory))
|
||
'())
|
||
,@extra-config)))
|
||
|
||
(gexp->derivation
|
||
"postgresql.conf"
|
||
#~(call-with-output-file (ungexp output "out")
|
||
(lambda (port)
|
||
(display
|
||
(string-append #$@contents)
|
||
port)))
|
||
#:local-build? #t))))
|
||
|
||
(define-record-type* <postgresql-configuration>
|
||
postgresql-configuration make-postgresql-configuration
|
||
postgresql-configuration?
|
||
(postgresql postgresql-configuration-postgresql) ;<package>
|
||
(port postgresql-configuration-port
|
||
(default 5432))
|
||
(locale postgresql-configuration-locale
|
||
(default "en_US.utf8"))
|
||
(config-file postgresql-configuration-file
|
||
(default (postgresql-config-file)))
|
||
(log-directory postgresql-configuration-log-directory
|
||
(default "/var/log/postgresql"))
|
||
(data-directory postgresql-configuration-data-directory
|
||
(default "/var/lib/postgresql/data"))
|
||
(extension-packages postgresql-configuration-extension-packages
|
||
(default '())))
|
||
|
||
(define %postgresql-accounts
|
||
(list (user-group (name "postgres") (system? #t))
|
||
(user-account
|
||
(name "postgres")
|
||
(group "postgres")
|
||
(system? #t)
|
||
(comment "PostgreSQL server user")
|
||
(home-directory "/var/empty")
|
||
(shell (file-append shadow "/sbin/nologin")))))
|
||
|
||
(define (final-postgresql postgresql extension-packages)
|
||
(if (null? extension-packages)
|
||
postgresql
|
||
(package
|
||
(inherit postgresql)
|
||
(source #f)
|
||
(build-system trivial-build-system)
|
||
(arguments
|
||
`(#:modules ((guix build utils) (guix build union))
|
||
#:builder
|
||
(begin
|
||
(use-modules (guix build utils) (guix build union) (srfi srfi-26))
|
||
(union-build (assoc-ref %outputs "out")
|
||
(map (lambda (input) (cdr input))
|
||
%build-inputs))
|
||
#t)))
|
||
(inputs
|
||
`(("postgresql" ,postgresql)
|
||
,@(map (lambda (extension) (list "extension" extension))
|
||
extension-packages))))))
|
||
|
||
(define postgresql-activation
|
||
(match-lambda
|
||
(($ <postgresql-configuration> postgresql port locale config-file
|
||
log-directory data-directory
|
||
extension-packages)
|
||
#~(begin
|
||
(use-modules (guix build utils)
|
||
(ice-9 match))
|
||
|
||
(let ((user (getpwnam "postgres"))
|
||
(initdb (string-append
|
||
#$(final-postgresql postgresql
|
||
extension-packages)
|
||
"/bin/initdb"))
|
||
(initdb-args
|
||
(append
|
||
(if #$locale
|
||
(list (string-append "--locale=" #$locale))
|
||
'()))))
|
||
;; Create db state directory.
|
||
(mkdir-p #$data-directory)
|
||
(chown #$data-directory (passwd:uid user) (passwd:gid user))
|
||
|
||
;; Create the socket directory.
|
||
(let ((socket-directory
|
||
#$(postgresql-config-file-socket-directory config-file)))
|
||
(when (string? socket-directory)
|
||
(mkdir-p socket-directory)
|
||
(chown socket-directory (passwd:uid user) (passwd:gid user))))
|
||
|
||
;; Create the log directory.
|
||
(when (string? #$log-directory)
|
||
(mkdir-p #$log-directory)
|
||
(chown #$log-directory (passwd:uid user) (passwd:gid user)))
|
||
|
||
;; Drop privileges and init state directory in a new
|
||
;; process. Wait for it to finish before proceeding.
|
||
(match (primitive-fork)
|
||
(0
|
||
;; Exit with a non-zero status code if an exception is thrown.
|
||
(dynamic-wind
|
||
(const #t)
|
||
(lambda ()
|
||
(setgid (passwd:gid user))
|
||
(setuid (passwd:uid user))
|
||
(primitive-exit
|
||
(apply system*
|
||
initdb
|
||
"-D"
|
||
#$data-directory
|
||
initdb-args)))
|
||
(lambda ()
|
||
(primitive-exit 1))))
|
||
(pid (waitpid pid))))))))
|
||
|
||
(define postgresql-shepherd-service
|
||
(match-lambda
|
||
(($ <postgresql-configuration> postgresql port locale config-file
|
||
log-directory data-directory
|
||
extension-packages)
|
||
(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 #$(file-append
|
||
(final-postgresql postgresql
|
||
extension-packages)
|
||
"/bin/pg_ctl"))
|
||
(options (format #f "--config-file=~a -p ~d"
|
||
#$config-file #$port)))
|
||
(setgid (passwd:gid user))
|
||
(setuid (passwd:uid user))
|
||
(execl pg_ctl pg_ctl "-D" #$data-directory
|
||
#$@(if (string? log-directory)
|
||
(list "-l"
|
||
(string-append log-directory
|
||
"/pg_ctl.log"))
|
||
'())
|
||
"-o" options
|
||
mode)))))))
|
||
(pid-file (in-vicinity data-directory "postmaster.pid"))
|
||
(action (lambda args
|
||
#~(lambda _
|
||
(invoke #$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))
|
||
(service-extension
|
||
profile-service-type
|
||
(compose list postgresql-configuration-postgresql))))
|
||
(default-value (postgresql-configuration
|
||
(postgresql postgresql-10)))))
|
||
|
||
(define-deprecated (postgresql-service #:key (postgresql postgresql)
|
||
(port 5432)
|
||
(locale "en_US.utf8")
|
||
(config-file (postgresql-config-file))
|
||
(data-directory
|
||
"/var/lib/postgresql/data")
|
||
(extension-packages '()))
|
||
postgresql-service-type
|
||
"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)
|
||
(extension-packages extension-packages))))
|
||
|
||
(define-record-type* <postgresql-role>
|
||
postgresql-role make-postgresql-role
|
||
postgresql-role?
|
||
(name postgresql-role-name) ;string
|
||
(permissions postgresql-role-permissions
|
||
(default '(createdb login))) ;list
|
||
(create-database? postgresql-role-create-database? ;boolean
|
||
(default #f)))
|
||
|
||
(define-record-type* <postgresql-role-configuration>
|
||
postgresql-role-configuration make-postgresql-role-configuration
|
||
postgresql-role-configuration?
|
||
(host postgresql-role-configuration-host ;string
|
||
(default "/var/run/postgresql"))
|
||
(log postgresql-role-configuration-log ;string
|
||
(default "/var/log/postgresql_roles.log"))
|
||
(roles postgresql-role-configuration-roles
|
||
(default '()))) ;list
|
||
|
||
(define (postgresql-create-roles config)
|
||
;; See: https://www.postgresql.org/docs/current/sql-createrole.html for the
|
||
;; complete permissions list.
|
||
(define (format-permissions permissions)
|
||
(let ((dict '(bypassrls createdb createrole login replication superuser)))
|
||
(string-join (filter-map (lambda (permission)
|
||
(and (member permission dict)
|
||
(string-upcase
|
||
(symbol->string permission))))
|
||
permissions)
|
||
" ")))
|
||
|
||
(define (roles->queries roles)
|
||
(apply mixed-text-file "queries"
|
||
(append-map
|
||
(lambda (role)
|
||
(match-record role <postgresql-role>
|
||
(name permissions create-database?)
|
||
`("SELECT NOT(EXISTS(SELECT 1 FROM pg_catalog.pg_roles WHERE \
|
||
rolname = '" ,name "')) as not_exists;\n"
|
||
"\\gset\n"
|
||
"\\if :not_exists\n"
|
||
"CREATE ROLE \"" ,name "\""
|
||
" WITH " ,(format-permissions permissions)
|
||
";\n"
|
||
,@(if create-database?
|
||
`("CREATE DATABASE \"" ,name "\""
|
||
" OWNER \"" ,name "\";\n")
|
||
'())
|
||
"\\endif\n")))
|
||
roles)))
|
||
|
||
(let ((host (postgresql-role-configuration-host config))
|
||
(roles (postgresql-role-configuration-roles config)))
|
||
#~(let ((psql #$(file-append postgresql "/bin/psql")))
|
||
(list psql "-a" "-h" #$host "-f" #$(roles->queries roles)))))
|
||
|
||
(define (postgresql-role-shepherd-service config)
|
||
(match-record config <postgresql-role-configuration>
|
||
(log)
|
||
(list (shepherd-service
|
||
(requirement '(postgres))
|
||
(provision '(postgres-roles))
|
||
(one-shot? #t)
|
||
(start
|
||
#~(lambda args
|
||
(let ((pid (fork+exec-command
|
||
#$(postgresql-create-roles config)
|
||
#:user "postgres"
|
||
#:group "postgres"
|
||
#:log-file #$log)))
|
||
(zero? (cdr (waitpid pid))))))
|
||
(documentation "Create PostgreSQL roles.")))))
|
||
|
||
(define postgresql-role-service-type
|
||
(service-type (name 'postgresql-role)
|
||
(extensions
|
||
(list (service-extension shepherd-root-service-type
|
||
postgresql-role-shepherd-service)))
|
||
(compose concatenate)
|
||
(extend (lambda (config extended-roles)
|
||
(match-record config <postgresql-role-configuration>
|
||
(host roles)
|
||
(postgresql-role-configuration
|
||
(host host)
|
||
(roles (append roles extended-roles))))))
|
||
(default-value (postgresql-role-configuration))
|
||
(description "Ensure the specified PostgreSQL roles are
|
||
created after the PostgreSQL database is started.")))
|
||
|
||
|
||
;;;
|
||
;;; 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"
|
||
,#$@additional-options)
|
||
#:log-file "/var/log/memcached"
|
||
#:pid-file "/var/run/memcached/pid"))
|
||
(stop #~(make-kill-destructor))))))))
|
||
|
||
(define memcached-service-type
|
||
(service-type (name 'memcached)
|
||
(extensions
|
||
(list (service-extension shepherd-root-service-type
|
||
memcached-shepherd-service)
|
||
(service-extension activation-service-type
|
||
(const memcached-activation))
|
||
(service-extension account-service-type
|
||
(const %memcached-accounts))))
|
||
(default-value (memcached-configuration))))
|
||
|
||
|
||
;;;
|
||
;;; MySQL.
|
||
;;;
|
||
|
||
(define-record-type* <mysql-configuration>
|
||
mysql-configuration make-mysql-configuration
|
||
mysql-configuration?
|
||
(mysql mysql-configuration-mysql (default mariadb))
|
||
(bind-address mysql-configuration-bind-address (default "127.0.0.1"))
|
||
(port mysql-configuration-port (default 3306))
|
||
(socket mysql-configuration-socket (default "/run/mysqld/mysqld.sock"))
|
||
(extra-content mysql-configuration-extra-content (default ""))
|
||
(extra-environment mysql-configuration-extra-environment (default #~'()))
|
||
(auto-upgrade? mysql-configuration-auto-upgrade? (default #t)))
|
||
|
||
(define %mysql-accounts
|
||
(list (user-group
|
||
(name "mysql")
|
||
(system? #t))
|
||
(user-account
|
||
(name "mysql")
|
||
(group "mysql")
|
||
(system? #t)
|
||
(home-directory "/var/empty")
|
||
(shell (file-append shadow "/sbin/nologin")))))
|
||
|
||
(define mysql-configuration-file
|
||
(match-lambda
|
||
(($ <mysql-configuration> mysql bind-address port socket extra-content)
|
||
(mixed-text-file "my.cnf" "[mysqld]
|
||
datadir=/var/lib/mysql
|
||
socket=" socket "
|
||
bind-address=" bind-address "
|
||
port=" (number->string port) "
|
||
" extra-content "
|
||
"))))
|
||
|
||
(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 #$mysql:lib "/share/mysql/" sql)
|
||
(lambda (in) (dump-port in p))))
|
||
'("mysql_system_tables.sql"
|
||
"mysql_performance_tables.sql"
|
||
"mysql_system_tables_data.sql"
|
||
"fill_help_tables.sql"))
|
||
;; Remove the anonymous user and disable root access from
|
||
;; remote machines, as does by 'mysql_secure_installation'.
|
||
(display "
|
||
DELETE FROM user WHERE User='';
|
||
DELETE FROM user WHERE User='root' AND
|
||
Host NOT IN ('localhost', '127.0.0.1', '::1');
|
||
FLUSH PRIVILEGES;
|
||
" p)
|
||
(close-pipe p))))))))
|
||
|
||
(define (mysql-shepherd-service config)
|
||
(list (shepherd-service
|
||
(provision '(mysql))
|
||
(documentation "Run the MySQL server.")
|
||
(start (let ((mysql (mysql-configuration-mysql config))
|
||
(extra-env (mysql-configuration-extra-environment config))
|
||
(my.cnf (mysql-configuration-file config)))
|
||
#~(make-forkexec-constructor
|
||
(list (string-append #$mysql "/bin/mysqld")
|
||
(string-append "--defaults-file=" #$my.cnf))
|
||
#:user "mysql" #:group "mysql"
|
||
#:log-file "/var/log/mysqld.log"
|
||
#:environment-variables #$extra-env)))
|
||
(stop #~(make-kill-destructor)))))
|
||
|
||
(define (mysql-upgrade-wrapper mysql socket-file)
|
||
;; The MySQL socket and PID file may appear before the server is ready to
|
||
;; accept connections. Ensure the socket is responsive before attempting
|
||
;; to run the upgrade script.
|
||
(program-file
|
||
"mysql-upgrade-wrapper"
|
||
#~(begin
|
||
(let ((mysql-upgrade #$(file-append mysql "/bin/mysql_upgrade"))
|
||
(timeout 10))
|
||
(begin
|
||
(let loop ((i 0))
|
||
(catch 'system-error
|
||
(lambda ()
|
||
(let ((sock (socket PF_UNIX SOCK_STREAM 0)))
|
||
(connect sock AF_UNIX #$socket-file)
|
||
(close-port sock)
|
||
;; The socket is ready!
|
||
(execl mysql-upgrade mysql-upgrade
|
||
(string-append "--socket=" #$socket-file))))
|
||
(lambda args
|
||
(if (< i timeout)
|
||
(begin
|
||
(sleep 1)
|
||
(loop (+ 1 i)))
|
||
;; No luck, give up.
|
||
(throw 'timeout-error
|
||
"MySQL server did not appear in time!"))))))))))
|
||
|
||
(define (mysql-upgrade-shepherd-service config)
|
||
(list (shepherd-service
|
||
(provision '(mysql-upgrade))
|
||
(requirement '(mysql))
|
||
(one-shot? #t)
|
||
(documentation "Upgrade MySQL database schemas.")
|
||
(start (let ((mysql (mysql-configuration-mysql config))
|
||
(socket (mysql-configuration-socket config)))
|
||
#~(make-forkexec-constructor
|
||
(list #$(mysql-upgrade-wrapper mysql socket))
|
||
#:user "mysql" #:group "mysql"))))))
|
||
|
||
(define (mysql-shepherd-services config)
|
||
(if (mysql-configuration-auto-upgrade? config)
|
||
(append (mysql-shepherd-service config)
|
||
(mysql-upgrade-shepherd-service config))
|
||
(mysql-shepherd-service config)))
|
||
|
||
(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-services)))
|
||
(default-value (mysql-configuration))))
|
||
|
||
(define-deprecated (mysql-service #:key (config (mysql-configuration)))
|
||
mysql-service-type
|
||
(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))))
|