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| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015 David Thompson <davet@gnu.org>
;;; Copyright © 2015 Ludovic Courtès <ludo@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 services dmd)
#:use-module (gnu system shadow)
#:use-module (gnu packages admin)
#:use-module (gnu packages web)
#:use-module (guix records)
#:use-module (guix gexp)
#:use-module (ice-9 match)
#:use-module (srfi srfi-1)
#:export (nginx-configuration
nginx-configuration?
nginx-configuration-log-directory
nginx-configuration-run-directory
nginx-configuration-file
nginx-configuration-servers
nginx-service-type
nginx-service))
;;; Commentary:
;;;
;;; Web services.
;;;
;;; Code:
(define-record-type* <nginx-configuration>
nginx-configuration make-nginx-configuration
nginx-configuration?
(nginx nginx-configuration-nginx) ; <package>
(log-directory nginx-configuration-log-directory) ; string
(run-directory nginx-configuration-run-directory) ; string
(file nginx-configuration-file) ; file-like
(servers nginx-configuration-servers)) ; list of file-like
(define (nginx-configuration-file* config)
(match config
(($ <nginx-configuration> _ log run file servers)
(apply mixed-text-file "nginx.conf"
`("user nginx nginx;\n"
"pid " ,run "/pid;\n"
"error_log " ,log "/error.log info;\n"
"include " ,file ";\n"
"http {\n"
" access_log " ,log "/access.log;\n"
,@(append-map (lambda (server-config)
(list "include " server-config ";\n"))
servers)
"}\n")))))
(define %nginx-accounts
(list (user-group (name "nginx") (system? #t))
(user-account
(name "nginx")
(group "nginx")
(system? #t)
(comment "nginx server user")
(home-directory "/var/empty")
(shell #~(string-append #$shadow "/sbin/nologin")))))
(define nginx-activation
(lambda (config)
(match config
(($ <nginx-configuration> nginx log-directory run-directory _)
#~(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* (string-append #$nginx "/sbin/nginx")
"-c" #$(nginx-configuration-file* config) "-t"))))))
(define (nginx-dmd-service config)
(match config
(($ <nginx-configuration> nginx log run file servers)
(let* ((nginx-binary #~(string-append #$nginx "/sbin/nginx"))
(config-file (nginx-configuration-file* config))
(nginx-action
(lambda args
#~(lambda _
(zero?
(system* #$nginx-binary "-c" #$config-file #$@args))))))
(list (dmd-service
(provision '(nginx))
(documentation "Run the nginx daemon.")
(requirement '(user-processes loopback))
(start (nginx-action "-p" run))
(stop (nginx-action "-s" "stop"))))))))
(define (extend-nginx config servers)
(nginx-configuration
(inherit config)
(servers (append (nginx-configuration-servers config) servers))))
(define nginx-service-type
(service-type (name 'nginx)
(extensions
(list (service-extension dmd-root-service-type
nginx-dmd-service)
(service-extension activation-service-type
nginx-activation)
(service-extension account-service-type
(const %nginx-accounts))))
(compose concatenate)
(extend extend-nginx)))
(define* (nginx-service #:key (nginx nginx)
(log-directory "/var/log/nginx")
(run-directory "/var/run/nginx")
;; Nginx requires an 'events' block.
(config-file (plain-file "nginx-main.conf"
"events {}"))
(servers '()))
"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."
(service nginx-service-type
(nginx-configuration
(nginx nginx)
(log-directory log-directory)
(run-directory run-directory)
(file config-file)
(servers servers))))
|