01/01: gnu: Add rpc-daemon service

[John Darrington]

jmd pushed a commit to branch master
in repository guix.

commit d6a07ee6751cdd414d702194dbeb0fd71f0781c9
Author: John Darrington <address@hidden>
Date:   Sat Sep 3 08:26:05 2016 +0200

    gnu: Add rpc-daemon service
    
    * gnu/services/nfs.scm: New file.
    * gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
---
 doc/guix.texi        |   26 ++++++++++++++++++++++++
 gnu/local.mk         |    1 +
 gnu/services/nfs.scm |   54 ++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 81 insertions(+)

diff --git a/doc/guix.texi b/doc/guix.texi
index 655dcfa..fb7284e 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -25,6 +25,7 @@ Copyright @copyright{} 2015, 2016 Ricardo address@hidden
 Copyright @copyright{} 2016 Ben address@hidden
 Copyright @copyright{} 2016 Chris address@hidden
 Copyright @copyright{} 2016 Efraim address@hidden
+Copyright @copyright{} 2016 John address@hidden
 Copyright @copyright{} 2016 ng0
 
 Permission is granted to copy, distribute and/or modify this document
@@ -10093,6 +10094,31 @@ directories are created when the service is activated.
 @node Various Services
 @subsubsection Various Services
 
+
address@hidden RPC Bind Service
address@hidden rpcbind
+
+The @code{(gnu services nfs)} module provides the following:
+
address@hidden {Scheme Variable} rpcbind-service-type
+A service type  for the RPC portmapper daemon.
address@hidden defvr
+
+
address@hidden {Data Type} rpcbind-configuration
+Data type representing the configuration of the RPC Bind Service.
+This type has the following parameters:
address@hidden @asis
address@hidden @code{rpcbind} (default: @code{rpcbind})
+The rpcbind package to use.
+
address@hidden @code{warm-start?} (default: @code{#t})
+If this parameter is @code{#t}, then the daemon will read a
+state file on startup thus reloading state information saved by a previous
+instance.
address@hidden table
address@hidden deftp
+
 @cindex lirc
 @subsubheading Lirc Service
 
diff --git a/gnu/local.mk b/gnu/local.mk
index 12578ca..8b042d5 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -389,6 +389,7 @@ GNU_SYSTEM_MODULES =                                \
   %D%/services/mail.scm                                \
   %D%/services/mcron.scm                       \
   %D%/services/networking.scm                  \
+  %D%/services/nfs.scm                 \
   %D%/services/shepherd.scm                    \
   %D%/services/herd.scm                                \
   %D%/services/sddm.scm                                \
diff --git a/gnu/services/nfs.scm b/gnu/services/nfs.scm
new file mode 100644
index 0000000..82713d8
--- /dev/null
+++ b/gnu/services/nfs.scm
@@ -0,0 +1,54 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2016 John Darrington <address@hidden>
+;;;
+;;; 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 (guix)
+  #:use-module (guix records)
+  #:export (rpcbind-service-type
+            rpcbind-configuration
+            rpcbind-configuration?))
+
+(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
+  (shepherd-service-type
+   'rpcbind
+   (lambda (config)
+     (define pkg
+       (rpcbind-configuration-rpcbind config))
+
+     (define rpcbind-command
+       #~(list (string-append #$pkg "/bin/rpcbind") "-f"
+               #$@(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))))))