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* gnu/services/authentication.scm (fprintd-configuration) (nslcd-configuration): Substitute file-like objects for package ones. * gnu/services/cgit.scm (cgit-configuration, opaque-cgit-configuration): Likewise. * gnu/services/cups.scm (package-list?, cups-configuration): Likewise. * gnu/services/dns.scm (verify-knot-configuration) (ddclient-configuration): Likewise. * gnu/services/docker.scm (docker-configuration): Likewise. * gnu/services/file-sharing.scm (transmission-daemon-configuration): Likewise. * gnu/services/getmail.scm (getmail-configuration): Likewise. * gnu/services/mail.scm (dovecot-configuration) (opaque-dovecot-configuration): Likewise. * gnu/services/messaging.scm (prosody-configuration) (opaque-prosody-configuration): Likewise. * gnu/services/monitoring.scm (zabbix-server-configuration) (zabbix-agent-configuration): Likewise. * gnu/services/networking.scm (opendht-configuration): Likewise. * gnu/services/pm.scm (tlp-configuration): Likewise. * gnu/services/telephony.scm (jami-configuration): Likewise. * gnu/services/virtualization.scm (libvirt-configuration) (qemu-guest-agent-configuration): Likewise. * gnu/services/vpn.scm (openvpn-client-configuration): Likewise.
175 lines
7.5 KiB
Scheme
175 lines
7.5 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2017 Oleg Pykhalov <go.wigust@gmail.com>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (gnu services rsync)
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#:use-module (gnu services)
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#:use-module (gnu services base)
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#:use-module (gnu services shepherd)
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#:use-module (gnu system shadow)
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#:use-module (gnu packages rsync)
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#:use-module (gnu packages admin)
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#:use-module (guix records)
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#:use-module (guix gexp)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-26)
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#:use-module (ice-9 match)
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#:export (rsync-configuration
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rsync-configuration?
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rsync-service-type))
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;;;; Commentary:
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;;;
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;;; This module implements a service that to run instance of Rsync,
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;;; files synchronization tool.
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;;;
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;;;; Code:
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(define-record-type* <rsync-configuration>
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rsync-configuration
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make-rsync-configuration
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rsync-configuration?
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(package rsync-configuration-package ; file-like
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(default rsync))
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(address rsync-configuration-address ; string | #f
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(default #f))
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(port-number rsync-configuration-port-number ; integer
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(default 873))
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(pid-file rsync-configuration-pid-file ; string
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(default "/var/run/rsyncd/rsyncd.pid"))
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(lock-file rsync-configuration-lock-file ; string
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(default "/var/run/rsyncd/rsyncd.lock"))
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(log-file rsync-configuration-log-file ; string
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(default "/var/log/rsyncd.log"))
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(use-chroot? rsync-configuration-use-chroot? ; boolean
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(default #t))
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(share-path rsync-configuration-share-path ; string
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(default "/srv/rsyncd"))
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(share-comment rsync-configuration-share-comment ; string
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(default "Rsync share"))
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(read-only? rsync-configuration-read-only? ; boolean
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(default #f))
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(timeout rsync-configuration-timeout ; integer
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(default 300))
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(user rsync-configuration-user ; string
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(default "root"))
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(group rsync-configuration-group ; string
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(default "root"))
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(uid rsync-configuration-uid ; string
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(default "rsyncd"))
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(gid rsync-configuration-gid ; string
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(default "rsyncd")))
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(define (rsync-account config)
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"Return the user accounts and user groups for CONFIG."
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(let ((rsync-user (if (rsync-configuration-uid config)
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(rsync-configuration-uid config)
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(rsync-configuration-user config)))
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(rsync-group (if (rsync-configuration-gid config)
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(rsync-configuration-gid config)
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(rsync-configuration-group config))))
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(list (user-group (name rsync-group) (system? #t))
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(user-account
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(name rsync-user)
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(system? #t)
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(group rsync-group)
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(comment "rsyncd privilege separation user")
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(home-directory (string-append "/var/run/"
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rsync-user))
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(shell (file-append shadow "/sbin/nologin"))))))
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(define (rsync-activation config)
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"Return the activation GEXP for CONFIG."
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(with-imported-modules '((guix build utils))
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#~(begin
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(let ((share-directory #$(rsync-configuration-share-path config))
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(user (getpw (if #$(rsync-configuration-uid config)
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#$(rsync-configuration-uid config)
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#$(rsync-configuration-user config))))
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(group (getpw (if #$(rsync-configuration-gid config)
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#$(rsync-configuration-gid config)
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#$(rsync-configuration-group config)))))
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(mkdir-p (dirname #$(rsync-configuration-pid-file config)))
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(and=> share-directory mkdir-p)
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(chown share-directory
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(passwd:uid user)
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(group:gid group))))))
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(define rsync-config-file
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;; Return the rsync configuration file corresponding to CONFIG.
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(match-lambda
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(($ <rsync-configuration> package address port-number pid-file lock-file log-file
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use-chroot? share-path share-comment read-only?
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timeout user group uid gid)
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(if (not (string=? user "root"))
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(cond
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((<= port-number 1024)
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(error (string-append "rsync-service: to run on port "
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(number->string port-number)
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", user must be root.")))
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(use-chroot?
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(error (string-append "rsync-service: to run in a chroot"
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", user must be root.")))
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(uid
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(error "rsync-service: to use uid, user must be root."))
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(gid
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(error "rsync-service: to use gid, user must be root."))))
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(mixed-text-file
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"rsync.conf"
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"# Generated by 'rsync-service'.\n\n"
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"pid file = " pid-file "\n"
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"lock file = " lock-file "\n"
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"log file = " log-file "\n"
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(if address (string-append "address = " address "\n") "")
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"port = " (number->string port-number) "\n"
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"use chroot = " (if use-chroot? "true" "false") "\n"
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(if uid (string-append "uid = " uid "\n") "")
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"gid = " (if gid gid "nogroup") "\n" ; no group nobody
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"\n"
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"[files]\n"
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"path = " share-path "\n"
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"comment = " share-comment "\n"
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"read only = " (if read-only? "true" "false") "\n"
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"timeout = " (number->string timeout) "\n"))))
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(define (rsync-shepherd-service config)
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"Return a <shepherd-service> for rsync with CONFIG."
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(let* ((rsync (rsync-configuration-package config))
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(pid-file (rsync-configuration-pid-file config))
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(port-number (rsync-configuration-port-number config))
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(user (rsync-configuration-user config))
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(group (rsync-configuration-group config)))
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(list (shepherd-service
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(provision '(rsync))
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(documentation "Run rsync daemon.")
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(start #~(make-forkexec-constructor
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(list (string-append #$rsync "/bin/rsync")
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"--config" #$(rsync-config-file config)
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"--daemon")
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#:pid-file #$pid-file
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#:user #$user
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#:group #$group))
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(stop #~(make-kill-destructor))))))
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(define rsync-service-type
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(service-type
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(name 'rsync)
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(extensions
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(list (service-extension shepherd-root-service-type rsync-shepherd-service)
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(service-extension account-service-type rsync-account)
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(service-extension activation-service-type rsync-activation)))
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(default-value (rsync-configuration))))
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