me
/
guix
Archived
1
0
Fork 0
This repository has been archived on 2024-08-07. You can view files and clone it, but cannot push or open issues/pull-requests.
guix/gnu/services/nfs.scm

440 lines
18 KiB
Scheme
Raw Blame History

This file contains invisible Unicode characters!

This file contains invisible Unicode characters that may be processed differently from what appears below. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to reveal hidden characters.

;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016 John Darrington <jmd@gnu.org>
;;; Copyright © 2018, 2019, 2020 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;;
;;; 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")
(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 #$rpcbind-command))
(stop #~(make-kill-destructor))))))
(service-type
(name 'rpcbind)
(extensions
(list (service-extension shepherd-root-service-type
(compose list proc))))
;; We use the extensions feature to allow other services to automatically
;; configure and start this service. Only one value can be provided. We
;; override it with the value returned by the extending service.
(compose identity)
(extend (lambda (config values)
(match values
((first . rest) first)
(_ config))))
(default-value (rpcbind-configuration)))))
(define-record-type* <pipefs-configuration>
pipefs-configuration make-pipefs-configuration
pipefs-configuration?
(mount-point pipefs-configuration-mount-point
(default default-pipefs-directory)))
(define pipefs-service-type
(let ((proc
(lambda (config)
(define pipefs-directory (pipefs-configuration-mount-point config))
(shepherd-service
(documentation "Mount the pipefs pseudo file system.")
(provision '(rpc-pipefs))
(start #~(lambda ()
(mkdir-p #$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)))))
(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 #$gss-command))
(stop #~(make-kill-destructor))))))
(service-type
(name 'gss)
(extensions
(list (service-extension shepherd-root-service-type
(compose list proc))))
;; We use the extensions feature to allow other services to automatically
;; configure and start this service. Only one value can be provided. We
;; override it with the value returned by the extending service.
(compose identity)
(extend (lambda (config values)
(match values
((first . rest) first)
(_ config))))
(default-value (gss-configuration)))))
(define-record-type* <idmap-configuration>
idmap-configuration make-idmap-configuration
idmap-configuration?
(pipefs-directory idmap-configuration-pipefs-directory
(default default-pipefs-directory))
(domain idmap-configuration-domain
(default #f))
(nfs-utils idmap-configuration-nfs-utils
(default nfs-utils))
(verbosity idmap-configuration-verbosity
(default 0)))
(define idmap-service-type
(let ((proc
(lambda (config)
(define nfs-utils
(idmap-configuration-nfs-utils config))
(define pipefs-directory
(idmap-configuration-pipefs-directory config))
(define domain (idmap-configuration-domain config))
(define (idmap-config-file config)
(plain-file "idmapd.conf"
(string-append
"\n[General]\n"
"Verbosity = "
(number->string
(idmap-configuration-verbosity config))
"\n"
(if domain
(format #f "Domain = ~a\n" domain)
"")
"\n[Mapping]\n"
"Nobody-User = nobody\n"
"Nobody-Group = nogroup\n")))
(define idmap-command
#~(list (string-append #$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))
(nfsd-tcp? nfs-configuration-nfsd-tcp?
(default #t))
(nfsd-udp? nfs-configuration-nfsd-udp?
(default #f))
(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
nfsd-tcp? nfsd-udp?
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)
#$(if nfsd-tcp?
"--tcp"
"--no-tcp")
#$(if nfsd-udp?
"--udp"
"--no-udp"))))))
(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.")))