1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013 Ludovic Courtès <ludo@gnu.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 system dmd)
#:use-module (guix store)
#:use-module (guix packages)
#:use-module (guix derivations)
#:use-module (guix records)
#:use-module ((gnu packages system)
#:select (mingetty inetutils))
#:use-module ((gnu packages package-management)
#:select (guix))
#:use-module (ice-9 match)
#:use-module (srfi srfi-1)
#:export (service?
service
service-provision
service-requirement
service-respawn?
service-start
service-stop
service-inputs
host-name-service
syslog-service
mingetty-service
guix-service
static-networking-service
dmd-configuration-file))
;;; Commentary:
;;;
;;; System services as cajoled by dmd.
;;;
;;; Code:
(define-record-type* <service>
service make-service
service?
(provision service-provision) ; list of symbols
(requirement service-requirement ; list of symbols
(default '()))
(respawn? service-respawn? ; Boolean
(default #t))
(start service-start) ; expression
(stop service-stop ; expression
(default #f))
(inputs service-inputs ; list of inputs
(default '())))
(define (host-name-service store name)
"Return a service that sets the host name to NAME."
(service
(provision '(host-name))
(start `(lambda _
(sethostname ,name)))
(respawn? #f)))
(define (mingetty-service store tty)
"Return a service to run mingetty on TTY."
(let* ((mingetty-drv (package-derivation store mingetty))
(mingetty-bin (string-append (derivation->output-path mingetty-drv)
"/sbin/mingetty")))
(service
(provision (list (symbol-append 'term- (string->symbol tty))))
;; Since the login prompt shows the host name, wait for the 'host-name'
;; service to be done.
(requirement '(host-name))
(start `(make-forkexec-constructor ,mingetty-bin "--noclear" ,tty))
(inputs `(("mingetty" ,mingetty))))))
(define (syslog-service store)
"Return a service that runs 'syslogd' with reasonable default settings."
(define syslog.conf
;; Snippet adapted from the GNU inetutils manual.
(add-text-to-store store "syslog.conf" "
# Log all kernel messages, authentication messages of
# level notice or higher and anything of level err or
# higher to the console.
# Don't log private authentication messages!
*.err;kern.*;auth.notice;authpriv.none /dev/console
# Log anything (except mail) of level info or higher.
# Don't log private authentication messages!
*.info;mail.none;authpriv.none /var/log/messages
# Same, in a different place.
*.info;mail.none;authpriv.none /dev/tty12
# The authpriv file has restricted access.
authpriv.* /var/log/secure
# Log all the mail messages in one place.
mail.* /var/log/maillog
"))
(let* ((inetutils-drv (package-derivation store inetutils))
(syslogd (string-append (derivation->output-path inetutils-drv)
"/libexec/syslogd")))
(service
(provision '(syslogd))
(start `(make-forkexec-constructor ,syslogd
"--rcfile" ,syslog.conf))
(inputs `(("inetutils" ,inetutils)
("syslog.conf" ,syslog.conf))))))
(define* (guix-service store #:key (guix guix))
"Return a service that runs the build daemon from GUIX."
(let* ((drv (package-derivation store guix))
(daemon (string-append (derivation->output-path drv)
"/bin/guix-daemon")))
(service
(provision '(guix-daemon))
(start `(make-forkexec-constructor ,daemon))
(inputs `(("guix" ,guix))))))
(define* (static-networking-service store interface ip
#:key (inetutils inetutils))
"Return a service that starts INTERFACE with address IP."
;; TODO: Eventually we should do this using Guile's networking procedures,
;; like 'configure-qemu-networking' does, but the patch that does this is
;; not yet in stock Guile.
(let ((ifconfig (string-append (package-output store inetutils)
"/bin/ifconfig")))
(service
(provision '(networking))
(start `(make-forkexec-constructor ,ifconfig ,interface ,ip "up"))
(stop `(make-forkexec-constructor ,ifconfig ,interface "down"))
(respawn? #f)
(inputs `(("inetutils" ,inetutils))))))
(define (dmd-configuration-file store services)
"Return the dmd configuration file for SERVICES."
(define config
`(begin
(register-services
,@(map (match-lambda
(($ <service> provision requirement respawn? start stop)
`(make <service>
#:provides ',provision
#:requires ',requirement
#:respawn? ,respawn?
#:start ,start
#:stop ,stop)))
services))
(for-each start ',(append-map service-provision services))))
(add-text-to-store store "dmd.conf"
(object->string config)))
;;; dmd.scm ends here
|
