unofficial mirror of guix-patches@gnu.org 
 help / color / mirror / code / Atom feed
blob 4e358197e2683a2a0431d28b5f2e72e5f5766cbb 17354 bytes (raw)
name: gnu/services/nfs.scm 	 # note: path name is non-authoritative(*)

  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
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
 
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016 John Darrington <jmd@gnu.org>
;;; Copyright © 2018, 2019, 2020 Ricardo Wurmus <rekado@elephly.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 nfs)
  #:use-module (gnu)
  #:use-module (gnu services shepherd)
  #:use-module (gnu packages onc-rpc)
  #:use-module (gnu packages linux)
  #:use-module (gnu packages nfs)
  #:use-module (guix)
  #:use-module (guix records)
  #:use-module (srfi srfi-1)
  #:use-module (ice-9 match)
  #:use-module (gnu build file-systems)
  #:export (rpcbind-service-type
            rpcbind-configuration
            rpcbind-configuration?

            pipefs-service-type
            pipefs-configuration
            pipefs-configuration?

            idmap-service-type
            idmap-configuration
            idmap-configuration?

            gss-service-type
            gss-configuration
            gss-configuration?

            nfs-service-type
            nfs-configuration
            nfs-configuration?))


(define default-pipefs-directory "/var/lib/nfs/rpc_pipefs")

\f

(define-record-type* <rpcbind-configuration>
  rpcbind-configuration make-rpcbind-configuration
  rpcbind-configuration?
  (rpcbind             rpcbind-configuration-rpcbind
                       (default rpcbind))
  (warm-start?         rpcbind-configuration-warm-start?
                       (default #t)))

(define rpcbind-service-type
  (let ((proc
         (lambda (config)
           (define rpcbind
             (rpcbind-configuration-rpcbind config))

           (define rpcbind-command
             #~(list (string-append #$rpcbind "/bin/rpcbind") "-f"
                     #$@(if (rpcbind-configuration-warm-start? config) '("-w") '())))

           (shepherd-service
            (documentation "Start the RPC bind daemon.")
            (requirement '(networking))
            (provision '(rpcbind-daemon))

            (start #~(make-forkexec-constructor #$rpcbind-command))
            (stop #~(make-kill-destructor))))))
    (service-type
     (name 'rpcbind)
     (extensions
      (list (service-extension shepherd-root-service-type
                               (compose list proc))))
     ;; We use the extensions feature to allow other services to automatically
     ;; configure and start this service.  Only one value can be provided.  We
     ;; override it with the value returned by the extending service.
     (compose identity)
     (extend (lambda (config values)
               (match values
                 ((first . rest) first)
                 (_ config))))
     (default-value (rpcbind-configuration)))))

\f

(define-record-type* <pipefs-configuration>
  pipefs-configuration make-pipefs-configuration
  pipefs-configuration?
  (mount-point           pipefs-configuration-mount-point
                         (default default-pipefs-directory)))

(define pipefs-service-type
  (let ((proc
         (lambda (config)
           (define pipefs-directory (pipefs-configuration-mount-point config))

           (shepherd-service
            (documentation "Mount the pipefs pseudo file system.")
            (provision '(rpc-pipefs))

            (start #~(lambda ()
                       (mkdir-p #$pipefs-directory)
                       (mount "rpc_pipefs" #$pipefs-directory "rpc_pipefs")
                       (member #$pipefs-directory (mount-points))))

            (stop #~(lambda (pid . args)
                      (umount #$pipefs-directory MNT_DETACH)
                      (not (member #$pipefs-directory (mount-points)))))))))
    (service-type
     (name 'pipefs)
     (extensions
      (list (service-extension shepherd-root-service-type
                               (compose list proc))))
     ;; We use the extensions feature to allow other services to automatically
     ;; configure and start this service.  Only one value can be provided.  We
     ;; override it with the value returned by the extending service.
     (compose identity)
     (extend (lambda (config values) (first values)))
     (default-value (pipefs-configuration)))))

\f

(define-record-type* <gss-configuration>
  gss-configuration make-gss-configuration
  gss-configuration?
  (pipefs-directory      gss-configuration-pipefs-directory
                         (default default-pipefs-directory))
  (nfs-utils             gss-configuration-gss
                         (default nfs-utils)))

(define gss-service-type
  (let ((proc
         (lambda (config)
           (define nfs-utils
             (gss-configuration-gss config))

           (define pipefs-directory
             (gss-configuration-pipefs-directory config))

           (define gss-command
             #~(list (string-append #$nfs-utils "/sbin/rpc.gssd") "-f"
                     "-p" #$pipefs-directory))

           (shepherd-service
            (documentation "Start the RPC GSS daemon.")
            (requirement '(rpcbind-daemon rpc-pipefs))
            (provision '(gss-daemon))

            (start #~(make-forkexec-constructor #$gss-command))
            (stop #~(make-kill-destructor))))))
    (service-type
     (name 'gss)
     (extensions
      (list (service-extension shepherd-root-service-type
                               (compose list proc))))
     ;; We use the extensions feature to allow other services to automatically
     ;; configure and start this service.  Only one value can be provided.  We
     ;; override it with the value returned by the extending service.
     (compose identity)
     (extend (lambda (config values)
               (match values
                 ((first . rest) first)
                 (_ config))))
     (default-value (gss-configuration)))))

\f

(define-record-type* <idmap-configuration>
  idmap-configuration make-idmap-configuration
  idmap-configuration?
  (pipefs-directory      idmap-configuration-pipefs-directory
                         (default default-pipefs-directory))
  (domain                idmap-configuration-domain
                         (default #f))
  (nfs-utils             idmap-configuration-nfs-utils
                         (default nfs-utils))
  (verbosity             idmap-configuration-verbosity
                         (default 0)))

(define idmap-service-type
  (let ((proc
         (lambda (config)

           (define nfs-utils
             (idmap-configuration-nfs-utils config))

           (define pipefs-directory
             (idmap-configuration-pipefs-directory config))

           (define domain (idmap-configuration-domain config))

           (define (idmap-config-file config)
             (plain-file "idmapd.conf"
                         (string-append
                          "\n[General]\n"
                          "Verbosity = "
                          (number->string
                           (idmap-configuration-verbosity config))
                          "\n"
                          (if domain
                              (format #f "Domain = ~a\n" domain)
                              "")
                          "\n[Mapping]\n"
                          "Nobody-User = nobody\n"
                          "Nobody-Group = nogroup\n")))

           (define idmap-command
             #~(list (string-append #$nfs-utils "/sbin/rpc.idmapd") "-f"
                     "-p" #$pipefs-directory
                     ;; TODO: this is deprecated
                     "-c" #$(idmap-config-file config)))

           (shepherd-service
            (documentation "Start the RPC IDMAP daemon.")
            (requirement '(rpcbind-daemon rpc-pipefs))
            (provision '(idmap-daemon))
            (start #~(make-forkexec-constructor #$idmap-command))
            (stop #~(make-kill-destructor))))))
    (service-type
     (name 'idmap)
     (extensions
      (list (service-extension shepherd-root-service-type
                               (compose list proc))))
     ;; We use the extensions feature to allow other services to automatically
     ;; configure and start this service.  Only one value can be provided.  We
     ;; override it with the value returned by the extending service.
     (compose identity)
     (extend (lambda (config values) (first values)))
     (default-value (idmap-configuration)))))

(define-record-type* <nfs-configuration>
  nfs-configuration make-nfs-configuration
  nfs-configuration?
  (nfs-utils           nfs-configuration-nfs-utils
                       (default nfs-utils))
  (nfs-versions        nfs-configuration-nfs-versions
                       (default '("4.2" "4.1" "4.0")))
  (exports             nfs-configuration-exports
                       (default '()))
  (rpcmountd-port      nfs-configuration-rpcmountd-port
                       (default #f))
  (rpcstatd-port       nfs-configuration-rpcstatd-port
                       (default #f))
  (rpcbind             nfs-configuration-rpcbind
                       (default rpcbind))
  (idmap-domain        nfs-configuration-idmap-domain
                       (default "localdomain"))
  (nfsd-port           nfs-configuration-nfsd-port
                       (default 2049))
  (nfsd-threads        nfs-configuration-nfsd-threads
                       (default 8))
  (pipefs-directory    nfs-configuration-pipefs-directory
                       (default default-pipefs-directory))
  ;; List of modules to debug; any of nfsd, nfs, rpc, idmap, statd, or mountd.
  (debug               nfs-configuration-debug
                       (default '())))

(define (nfs-shepherd-services config)
  "Return a list of <shepherd-service> for the NFS daemons with CONFIG."
  (match-record config <nfs-configuration>
    (nfs-utils nfs-versions exports
               rpcmountd-port rpcstatd-port nfsd-port nfsd-threads
               pipefs-directory debug)
    (list (shepherd-service
           (documentation "Mount the nfsd pseudo file system.")
           (provision '(/proc/fs/nfsd))
           (start #~(lambda ()
                      (mount "nfsd" "/proc/fs/nfsd" "nfsd")
                      (member "/proc/fs/nfsd" (mount-points))))

           (stop #~(lambda (pid . args)
                     (umount "/proc/fs/nfsd" MNT_DETACH)
                     (not (member "/proc/fs/nfsd" (mount-points))))))
          (shepherd-service
           (documentation "Run the NFS statd daemon.")
           (provision '(rpc.statd))
           (requirement '(/proc/fs/nfsd rpcbind-daemon))
           (start
            #~(make-forkexec-constructor
               (list #$(file-append nfs-utils "/sbin/rpc.statd")
                     ;; TODO: notification support may require a little more
                     ;; configuration work.
                     "--no-notify"
                     #$@(if (member 'statd debug)
                            '("--no-syslog") ; verbose logging to stderr
                            '())
                     "--foreground"
                     #$@(if rpcstatd-port
                            '("--port" (number->string rpcstatd-port))
                            '()))
               #:pid-file "/var/run/rpc.statd.pid"))
           (stop #~(make-kill-destructor)))
          (shepherd-service
           (documentation "Run the NFS mountd daemon.")
           (provision '(rpc.mountd))
           (requirement '(/proc/fs/nfsd rpc.statd))
           (start
            #~(make-forkexec-constructor
               (list #$(file-append nfs-utils "/sbin/rpc.mountd")
                     "--foreground"
                     #$@(if (member 'mountd debug)
                            '("--debug" "all")
                            '())
                     #$@(if rpcmountd-port
                            '("--port" (number->string rpcmountd-port))
                            '()))))
           (stop #~(make-kill-destructor)))
          (shepherd-service
           (documentation "Run the NFS daemon.")
           (provision '(rpc.nfsd))
           (requirement '(/proc/fs/nfsd rpc.statd networking))
           (start
            #~(lambda _
                (zero? (apply system* #$(file-append nfs-utils "/sbin/rpc.nfsd")
                              (list
                               #$@(if (member 'nfsd debug)
                                      '("--debug")
                                      '())
                               "--port" #$(number->string nfsd-port)
                               #$@(map (lambda (version)
                                         (string-append "--nfs-version=" version))
                                       nfs-versions)
                               #$(number->string nfsd-threads))))))
           (stop
            #~(lambda _
                (zero?
                 (system* #$(file-append nfs-utils "/sbin/rpc.nfsd") "0")))))
          (shepherd-service
           (documentation "Run the NFS mountd daemon and refresh exports.")
           (provision '(nfs))
           (requirement '(/proc/fs/nfsd rpc.nfsd rpc.mountd rpc.statd rpcbind-daemon))
           (start
            #~(lambda _
                (let ((rpcdebug #$(file-append nfs-utils "/sbin/rpcdebug")))
                  (cond
                   ((member 'nfsd '#$debug)
                    (system* rpcdebug "-m" "nfsd" "-s" "all"))
                   ((member 'nfs '#$debug)
                    (system* rpcdebug "-m" "nfs" "-s" "all"))
                   ((member 'rpc '#$debug)
                    (system* rpcdebug "-m" "rpc" "-s" "all"))))
                (zero? (system*
                        #$(file-append nfs-utils "/sbin/exportfs")
                        "-r"            ; re-export
                        "-a"            ; everthing
                        "-v"            ; be verbose
                        "-d" "all"      ; debug
                        ))))
           (stop
            #~(lambda _
                (let ((rpcdebug #$(file-append nfs-utils "/sbin/rpcdebug")))
                  (cond
                   ((member 'nfsd '#$debug)
                    (system* rpcdebug "-m" "nfsd" "-c" "all"))
                   ((member 'nfs '#$debug)
                    (system* rpcdebug "-m" "nfs" "-c" "all"))
                   ((member 'rpc '#$debug)
                    (system* rpcdebug "-m" "rpc" "-c" "all"))))
                #t))
           (respawn? #f)))))

(define %nfs-activation
  (with-imported-modules '((guix build utils))
    #~(begin
        (use-modules (guix build utils))

        ;; directory containing monitor list
        (mkdir-p "/var/lib/nfs/sm")
        ;; Needed for client recovery tracking
        (mkdir-p "/var/lib/nfs/v4recovery")
        (let ((user (getpw "nobody")))
          (chown "/var/lib/nfs"
                 (passwd:uid user)
                 (passwd:gid user))
          (chown "/var/lib/nfs/v4recovery"
                 (passwd:uid user)
                 (passwd:gid user)))
        #t)))

(define nfs-service-type
  (service-type
   (name 'nfs)
   (extensions
    (list
     (service-extension shepherd-root-service-type nfs-shepherd-services)
     (service-extension activation-service-type (const %nfs-activation))
     (service-extension etc-service-type
                        (lambda (config)
                          `(("exports"
                             ,(plain-file "exports"
                                          (string-join
                                           (map string-join
                                                (nfs-configuration-exports config))
                                           "\n"))))))
     ;; The NFS service depends on these other services.  They are extended so
     ;; that users don't need to configure them manually.
     (service-extension idmap-service-type
                        (lambda (config)
                          (idmap-configuration
                           (domain (nfs-configuration-idmap-domain config))
                           (verbosity
                            (if (member 'idmap (nfs-configuration-debug config))
                                10 0))
                           (pipefs-directory (nfs-configuration-pipefs-directory config))
                           (nfs-utils (nfs-configuration-nfs-utils config)))))
     (service-extension pipefs-service-type
                        (lambda (config)
                          (pipefs-configuration
                           (mount-point (nfs-configuration-pipefs-directory config)))))
     (service-extension rpcbind-service-type
                        (lambda (config)
                          (rpcbind-configuration
                           (rpcbind (nfs-configuration-rpcbind config)))))))
   (description
    "Run all NFS daemons and refresh the list of exported file systems.")))

debug log:

solving 4e358197e2 ...
found 4e358197e2 in https://git.savannah.gnu.org/cgit/guix.git

(*) Git path names are given by the tree(s) the blob belongs to.
    Blobs themselves have no identifier aside from the hash of its contents.^

Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/guix.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).