guix/gnu/services/web.scm

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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015 David Thompson <davet@gnu.org>
;;;
;;; 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 web)
#:use-module (gnu services)
#:use-module (gnu system shadow)
#:use-module (gnu packages admin)
#:use-module (gnu packages web)
#:use-module (guix records)
#:use-module (guix monads)
#:use-module (guix store)
#:use-module (guix gexp)
#:export (nginx-service))
;;; Commentary:
;;;
;;; Web services.
;;;
;;; Code:
(define (default-nginx-config log-directory run-directory)
(plain-file "nginx.conf"
(string-append
"user nginx nginx;\n"
"pid " run-directory "/pid;\n"
"error_log " log-directory "/error.log info;\n"
"http {\n"
" access_log " log-directory "/access.log;\n"
" root /var/www;\n"
" server {}\n"
"}\n"
"events {}\n")))
(define* (nginx-service #:key (nginx nginx)
(log-directory "/var/log/nginx")
(run-directory "/var/run/nginx")
(config-file
(default-nginx-config log-directory run-directory)))
"Return a service that runs NGINX, the nginx web server.
The nginx daemon loads its runtime configuration from CONFIG-FIGLE, stores log
files in LOG-DIRECTORY, and stores temporary runtime files in RUN-DIRECTORY."
(define nginx-binary
#~(string-append #$nginx "/sbin/nginx"))
(define (nginx-action . args)
#~(lambda _
(zero?
(system* #$nginx-binary "-c" #$config-file #$@args))))
(define activate
#~(begin
(use-modules (guix build utils))
(format #t "creating nginx log directory '~a'~%" #$log-directory)
(mkdir-p #$log-directory)
(format #t "creating nginx run directory '~a'~%" #$run-directory)
(mkdir-p #$run-directory)
;; Check configuration file syntax.
(system* #$nginx-binary "-c" #$config-file "-t")))
(define nologin #~(string-append #$shadow "/sbin/nologin"))
;; TODO: Add 'reload' action.
(mbegin %store-monad
(return
(service
(provision '(nginx))
(documentation "Run the nginx daemon.")
(requirement '(user-processes loopback))
(start (nginx-action "-p" run-directory))
(stop (nginx-action "-s" "stop"))
(activate activate)
(user-groups (list (user-group
(name "nginx")
(system? #t))))
(user-accounts (list (user-account
(name "nginx")
(group "nginx")
(system? #t)
(comment "nginx server user")
(home-directory "/var/empty")
(shell nologin))))))))