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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2019 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 guix)
#:use-module (ice-9 match)
#:use-module (guix gexp)
#:use-module (guix records)
#:use-module ((gnu packages base)
#:select (glibc-utf8-locales))
#:use-module (gnu packages admin)
#:use-module (gnu packages web)
#:use-module (gnu services)
#:use-module (gnu services base)
#:use-module (gnu services admin)
#:use-module (gnu services shepherd)
#:use-module (gnu services getmail)
#:use-module (gnu system shadow)
#:export (<guix-data-service-configuration>
guix-data-service-configuration
guix-data-service-configuration?
guix-data-service-package
guix-data-service-user
guix-data-service-group
guix-data-service-port
guix-data-service-host
guix-data-service-getmail-idle-mailboxes
guix-data-service-commits-getmail-retriever-configuration
guix-data-service-type))
;;;; Commentary:
;;;
;;; This module implements a service that to run instances of the Guix Data
;;; Service, which provides data about Guix over time.
;;;
;;;; Code:
(define-record-type* <guix-data-service-configuration>
guix-data-service-configuration make-guix-data-service-configuration
guix-data-service-configuration?
(package guix-data-service-package
(default guix-data-service))
(user guix-data-service-configuration-user
(default "guix-data-service"))
(group guix-data-service-configuration-group
(default "guix-data-service"))
(port guix-data-service-port
(default 8765))
(host guix-data-service-host
(default "127.0.0.1"))
(getmail-idle-mailboxes
guix-data-service-getmail-idle-mailboxes
(default #f))
(commits-getmail-retriever-configuration
guix-data-service-commits-getmail-retriever-configuration
(default #f))
(extra-options guix-data-service-extra-options
(default '()))
(extra-process-jobs-options
guix-data-service-extra-process-jobs-options
(default '())))
(define (guix-data-service-profile-packages config)
"Return the guix-data-service package, this will populate the
ca-certificates.crt file in the system profile."
(list
(guix-data-service-package config)))
(define (guix-data-service-shepherd-services config)
(match-record config <guix-data-service-configuration>
(package user group port host extra-options extra-process-jobs-options)
(list
(shepherd-service
(documentation "Guix Data Service web server")
(provision '(guix-data-service))
(requirement '(postgres networking))
(start #~(make-forkexec-constructor
(list #$(file-append package
"/bin/guix-data-service")
"--pid-file=/var/run/guix-data-service/pid"
#$(string-append "--port=" (number->string port))
#$(string-append "--host=" host)
;; Perform any database migrations when the
;; service is started
"--update-database"
#$@extra-options)
#:user #$user
#:group #$group
#:pid-file "/var/run/guix-data-service/pid"
;; Allow time for migrations to run
#:pid-file-timeout 60
#:environment-variables
`(,(string-append
"GUIX_LOCPATH=" #$glibc-utf8-locales "/lib/locale")
"LC_ALL=en_US.utf8")
#:log-file "/var/log/guix-data-service/web.log"))
(stop #~(make-kill-destructor)))
(shepherd-service
(documentation "Guix Data Service process jobs")
(provision '(guix-data-service-process-jobs))
(requirement '(postgres
networking
;; Require guix-data-service, as that the database
;; migrations are handled through this service
guix-data-service))
(start #~(make-forkexec-constructor
(list
#$(file-append package
"/bin/guix-data-service-process-jobs")
#$@extra-process-jobs-options)
#:user #$user
#:group #$group
#:environment-variables
`("HOME=/var/lib/guix-data-service"
"GIT_SSL_CAINFO=/etc/ssl/certs/ca-certificates.crt"
,(string-append
"GUIX_LOCPATH=" #$glibc-utf8-locales "/lib/locale")
"LC_ALL=en_US.utf8")
#:log-file "/var/log/guix-data-service/process-jobs.log"))
(stop #~(make-kill-destructor))))))
(define (guix-data-service-activation config)
#~(begin
(use-modules (guix build utils))
(define %user (getpw "guix-data-service"))
(chmod "/var/lib/guix-data-service" #o755)
(mkdir-p "/var/log/guix-data-service")
;; Allow writing the PID file
(mkdir-p "/var/run/guix-data-service")
(chown "/var/run/guix-data-service"
(passwd:uid %user)
(passwd:gid %user))))
(define (guix-data-service-account config)
(match-record config <guix-data-service-configuration>
(user group)
(list (user-group
(name group)
(system? #t))
(user-account
(name user)
(group group)
(system? #t)
(comment "Guix Data Service user")
(home-directory "/var/lib/guix-data-service")
(shell (file-append shadow "/sbin/nologin"))))))
(define (guix-data-service-getmail-configuration config)
(match config
(($ <guix-data-service-configuration> package user group
port host
#f #f)
'())
(($ <guix-data-service-configuration> package user group
port host
getmail-idle-mailboxes
commits-getmail-retriever-configuration)
(list
(getmail-configuration
(name 'guix-data-service)
(user user)
(group group)
(directory "/var/lib/getmail/guix-data-service")
(rcfile
(getmail-configuration-file
(retriever commits-getmail-retriever-configuration)
(destination
(getmail-destination-configuration
(type "MDA_external")
(path (file-append
package
"/bin/guix-data-service-process-branch-updated-email"))))
(options
(getmail-options-configuration
(read-all #f)
(delivered-to #f)
(received #f)))))
(idle getmail-idle-mailboxes))))))
(define guix-data-service-type
(service-type
(name 'guix-data-service)
(extensions
(list
(service-extension profile-service-type
guix-data-service-profile-packages)
(service-extension shepherd-root-service-type
guix-data-service-shepherd-services)
(service-extension activation-service-type
guix-data-service-activation)
(service-extension account-service-type
guix-data-service-account)
(service-extension getmail-service-type
guix-data-service-getmail-configuration)))
(default-value
(guix-data-service-configuration))
(description
"Run an instance of the Guix Data Service.")))
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