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(define-module (px services ntp)
#:use-module (gnu)
#:use-module (gnu packages admin)
#:use-module (gnu packages base)
#:use-module (gnu packages linux)
#:use-module (gnu packages ntp)
#:use-module (gnu packages screen)
#:use-module (gnu services admin)
#:use-module (gnu services shepherd)
#:use-module (gnu system)
#:use-module (gnu system shadow)
#:use-module (guix gexp)
#:use-module (guix records)
#:use-module (ice-9 match)
#:use-module (ice-9 pretty-print)
#:use-module (srfi srfi-1)
#:export (chrony-service-configuration
chrony-service-type))
;;
;; Chrony SERVICE
;;
(define-record-type* <chrony-service-configuration>
chrony-service-configuration make-chrony-service-configuration
chrony-service-configuration?
(package chrony-service-configuration-package
(default chrony))
(user chrony-service-configuration-user
(default "root"))
(config chrony-service-configuration-config
(default "server 0.pool.ntp.org iburst
server 1.pool.ntp.org iburst
server 2.pool.ntp.org iburst
server 3.pool.ntp.org iburst
driftfile /var/lib/chrony/drift
makestep 1.0 3
rtcsync
logdir /var/log/chrony")))
(define (chrony-service-config-file config)
"Return the chorny configuration file corresponding to CONFIG."
(computed-file "chrony.conf"
(with-imported-modules
'((guix build utils))
#~(begin
(use-modules (guix build utils))
(call-with-output-file #$output
(lambda (port)
(format port
#$config)))))))
(define chrony-shepherd-service
(match-lambda
(($ <chrony-service-configuration> package user config)
(list (shepherd-service
(provision '(chrony))
(documentation "Run chrony as a daemon")
(requirement '(networking))
(start #~(make-forkexec-constructor
(list (string-append #$package "/sbin/chronyd")
"-n" "-u" #$user
"-f" #$(chrony-service-config-file config))))
(stop #~(make-kill-destructor)))))))
(define chrony-service-type
(service-type
(name "chrony")
(description "Chrony service")
(extensions (list (service-extension shepherd-root-service-type
chrony-shepherd-service)))
(default-value (chrony-service-configuration))))
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