guix-play/gnu/tests/databases.scm
Christopher Baines bdcf4d88d5
services: databases: Don't specify a default postgresql version.
Currently, if the postgresql package major version changes, this is going to
break the service upon upgrade, because PostgreSQL will reject the data files
from the differing major version of the service.

Because it's important to either keep running a particular major version, or
intentionally upgrade, I think the configuration would be better with no
default. I think this is also going to be helpful when trying to assist users
upgrading PostgreSQL.

* gnu/services/databases.scm (<postgresql-configuration>): Remove default for
postgresql.
(postgresql-service-type): Remove the default value.
* gnu/tests/databases.scm (%postgresql-os): Update accordingly.
* gnu/tests/guix.scm (%guix-data-service-os): Update accordingly.
* gnu/tests/monitoring.scm (%zabbix-os): Update accordingly.
* gnu/tests/web.scm (patchwork-os): Update accordingly.
* doc/guix.texi (PostgreSQL): Update accordingly.
2020-10-20 22:39:43 +01:00

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;;; GNU Guix --- Functional package management for GNU
;;; 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 tests databases)
#:use-module (gnu tests)
#:use-module (gnu system)
#:use-module (gnu system file-systems)
#:use-module (gnu system shadow)
#:use-module (gnu system vm)
#:use-module (gnu services)
#:use-module (gnu services databases)
#:use-module (gnu services networking)
#:use-module (gnu packages databases)
#:use-module (guix gexp)
#:use-module (guix store)
#:export (%test-memcached
%test-mongodb
%test-postgresql
%test-mysql))
(define %memcached-os
(simple-operating-system
(service dhcp-client-service-type)
(service memcached-service-type)))
(define* (run-memcached-test #:optional (port 11211))
"Run tests in %MEMCACHED-OS, forwarding PORT."
(define os
(marionette-operating-system
%memcached-os
#:imported-modules '((gnu services herd)
(guix combinators))))
(define vm
(virtual-machine
(operating-system os)
(port-forwardings `((11211 . ,port)))))
(define test
(with-imported-modules '((gnu build marionette))
#~(begin
(use-modules (srfi srfi-11) (srfi srfi-64)
(gnu build marionette)
(ice-9 rdelim))
(define marionette
(make-marionette (list #$vm)))
(mkdir #$output)
(chdir #$output)
(test-begin "memcached")
;; Wait for memcached to be up and running.
(test-assert "service running"
(marionette-eval
'(begin
(use-modules (gnu services herd))
(match (start-service 'memcached)
(#f #f)
(('service response-parts ...)
(match (assq-ref response-parts 'running)
((pid) (number? pid))))))
marionette))
(let* ((ai (car (getaddrinfo "localhost"
#$(number->string port))))
(s (socket (addrinfo:fam ai)
(addrinfo:socktype ai)
(addrinfo:protocol ai)))
(key "testkey")
(value "guix"))
(connect s (addrinfo:addr ai))
(test-equal "set"
"STORED\r"
(begin
(simple-format s "set ~A 0 60 ~A\r\n~A\r\n"
key
(string-length value)
value)
(read-line s)))
(test-equal "get"
(simple-format #f "VALUE ~A 0 ~A\r~A\r"
key
(string-length value)
value)
(begin
(simple-format s "get ~A\r\n" key)
(string-append
(read-line s)
(read-line s))))
(close-port s))
;; There should be a log file in here.
(test-assert "log file"
(marionette-eval
'(file-exists? "/var/log/memcached")
marionette))
(test-end)
(exit (= (test-runner-fail-count (test-runner-current)) 0)))))
(gexp->derivation "memcached-test" test))
(define %test-memcached
(system-test
(name "memcached")
(description "Connect to a running MEMCACHED server.")
(value (run-memcached-test))))
(define %mongodb-os
(operating-system
(inherit
(simple-operating-system
(service dhcp-client-service-type)
(service mongodb-service-type)))
(packages (cons* mongodb
%base-packages))))
(define* (run-mongodb-test #:optional (port 27017))
"Run tests in %MONGODB-OS, forwarding PORT."
(define os
(marionette-operating-system
%mongodb-os
#:imported-modules '((gnu services herd)
(guix combinators))))
(define vm
(virtual-machine
(operating-system os)
(memory-size 1024)
(disk-image-size (* 1024 (expt 2 20)))
(port-forwardings `((27017 . ,port)))))
(define test
(with-imported-modules '((gnu build marionette))
#~(begin
(use-modules (srfi srfi-11) (srfi srfi-64)
(gnu build marionette)
(ice-9 popen)
(ice-9 rdelim))
(define marionette
(make-marionette (list #$vm)))
(mkdir #$output)
(chdir #$output)
(test-begin "mongodb")
(test-assert "service running"
(marionette-eval
'(begin
(use-modules (gnu services herd))
(match (start-service 'mongodb)
(#f #f)
(('service response-parts ...)
(match (assq-ref response-parts 'running)
((pid) (number? pid))))))
marionette))
(test-eq "test insert"
0
(system* (string-append #$mongodb "/bin/mongo")
"test"
"--eval"
"db.testCollection.insert({data: 'test-data'})"))
(test-equal "test find"
"test-data"
(let* ((port (open-pipe*
OPEN_READ
(string-append #$mongodb "/bin/mongo")
"test"
"--quiet"
"--eval"
"db.testCollection.findOne().data"))
(output (read-line port))
(status (close-pipe port)))
output))
(test-end)
(exit (= (test-runner-fail-count (test-runner-current)) 0)))))
(gexp->derivation "mongodb-test" test))
(define %test-mongodb
(system-test
(name "mongodb")
(description "Connect to a running MONGODB server.")
(value (run-mongodb-test))))
;;;
;;; The PostgreSQL service.
;;;
(define %postgresql-os
(simple-operating-system
(service postgresql-service-type
(postgresql-configuration
(postgresql postgresql-10)))))
(define (run-postgresql-test)
"Run tests in %POSTGRESQL-OS."
(define os
(marionette-operating-system
%postgresql-os
#:imported-modules '((gnu services herd)
(guix combinators))))
(define vm
(virtual-machine
(operating-system os)
(memory-size 512)))
(define test
(with-imported-modules '((gnu build marionette))
#~(begin
(use-modules (srfi srfi-64)
(gnu build marionette))
(define marionette
(make-marionette (list #$vm)))
(mkdir #$output)
(chdir #$output)
(test-begin "postgresql")
(test-assert "service running"
(marionette-eval
'(begin
(use-modules (gnu services herd))
(start-service 'postgres))
marionette))
(test-end)
(exit (= (test-runner-fail-count (test-runner-current)) 0)))))
(gexp->derivation "postgresql-test" test))
(define %test-postgresql
(system-test
(name "postgresql")
(description "Start the PostgreSQL service.")
(value (run-postgresql-test))))
;;;
;;; The MySQL service.
;;;
(define %mysql-os
(simple-operating-system
(mysql-service)))
(define* (run-mysql-test)
"Run tests in %MYSQL-OS."
(define os
(marionette-operating-system
%mysql-os
#:imported-modules '((gnu services herd)
(guix combinators))))
(define vm
(virtual-machine
(operating-system os)
(memory-size 512)))
(define test
(with-imported-modules '((gnu build marionette))
#~(begin
(use-modules (srfi srfi-11) (srfi srfi-64)
(gnu build marionette))
(define marionette
(make-marionette (list #$vm)))
(mkdir #$output)
(chdir #$output)
(test-begin "mysql")
(test-assert "service running"
(marionette-eval
'(begin
(use-modules (gnu services herd))
(match (start-service 'mysql)
(#f #f)
(('service response-parts ...)
(match (assq-ref response-parts 'running)
((pid) (number? pid))))))
marionette))
(test-end)
(exit (= (test-runner-fail-count (test-runner-current)) 0)))))
(gexp->derivation "mysql-test" test))
(define %test-mysql
(system-test
(name "mysql")
(description "Start the MySQL service.")
(value (run-mysql-test))))