382 lines
15 KiB
Scheme
382 lines
15 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2015 David Thompson <davet@gnu.org>
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;;; Copyright © 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2016 ng0 <ng0@we.make.ritual.n0.is>
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;;; Copyright © 2016, 2017 Julien Lepiller <julien@lepiller.eu>
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;;; Copyright © 2017 Christopher Baines <mail@cbaines.net>
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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 web)
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#:use-module (gnu services)
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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 admin)
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#:use-module (gnu packages web)
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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 (ice-9 match)
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#:export (<nginx-configuration>
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nginx-configuration
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nginx-configuration?
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nginx-configuartion-nginx
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nginx-configuration-log-directory
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nginx-configuration-run-directory
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nginx-configuration-server-blocks
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nginx-configuration-upstream-blocks
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nginx-configuration-file
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<nginx-server-configuration>
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nginx-server-configuration
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nginx-server-configuration?
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nginx-server-configuration-http-port
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nginx-server-configuartion-https-port
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nginx-server-configuration-server-name
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nginx-server-configuration-root
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nginx-server-configuration-locations
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nginx-server-configuration-index
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nginx-server-configuration-ssl-certificate
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nginx-server-configuration-ssl-certificate-key
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nginx-server-configuration-server-tokens?
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<nginx-upstream-configuration>
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nginx-upstream-configuration
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nginx-upstream-configuration?
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nginx-upstream-configuration-name
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nginx-upstream-configuration-servers
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<nginx-location-configuration>
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nginx-location-configuration
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nginx-location-configuration?
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nginx-location-configuration-uri
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nginx-location-configuration-body
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<nginx-named-location-configuration>
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nginx-named-location-configuration
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nginx-named-location-configuration?
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nginx-named-location-configuration-name
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nginx-named-location-configuration-body
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nginx-service
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nginx-service-type
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fcgiwrap-configuration
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fcgiwrap-configuration?
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fcgiwrap-service-type))
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;;; Commentary:
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;;;
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;;; Web services.
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;;;
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;;; Code:
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(define-record-type* <nginx-server-configuration>
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nginx-server-configuration make-nginx-server-configuration
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nginx-server-configuration?
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(http-port nginx-server-configuration-http-port
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(default 80))
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(https-port nginx-server-configuration-https-port
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(default 443))
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(server-name nginx-server-configuration-server-name
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(default (list 'default)))
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(root nginx-server-configuration-root
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(default "/srv/http"))
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(locations nginx-server-configuration-locations
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(default '()))
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(index nginx-server-configuration-index
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(default (list "index.html")))
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(ssl-certificate nginx-server-configuration-ssl-certificate
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(default "/etc/nginx/cert.pem"))
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(ssl-certificate-key nginx-server-configuration-ssl-certificate-key
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(default "/etc/nginx/key.pem"))
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(server-tokens? nginx-server-configuration-server-tokens?
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(default #f)))
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(define-record-type* <nginx-upstream-configuration>
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nginx-upstream-configuration make-nginx-upstream-configuration
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nginx-upstream-configuration?
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(name nginx-upstream-configuration-name)
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(servers nginx-upstream-configuration-servers))
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(define-record-type* <nginx-location-configuration>
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nginx-location-configuration make-nginx-location-configuration
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nginx-location-configuration?
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(uri nginx-location-configuration-uri
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(default #f))
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(body nginx-location-configuration-body))
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(define-record-type* <nginx-named-location-configuration>
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nginx-named-location-configuration make-nginx-named-location-configuration
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nginx-named-location-configuration?
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(name nginx-named-location-configuration-name
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(default #f))
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(body nginx-named-location-configuration-body))
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(define-record-type* <nginx-configuration>
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nginx-configuration make-nginx-configuration
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nginx-configuration?
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(nginx nginx-configuration-nginx ;<package>
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(default nginx))
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(log-directory nginx-configuration-log-directory ;string
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(default "/var/log/nginx"))
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(run-directory nginx-configuration-run-directory ;string
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(default "/var/run/nginx"))
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(server-blocks nginx-configuration-server-blocks
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(default '())) ;list of <nginx-server-configuration>
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(upstream-blocks nginx-configuration-upstream-blocks
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(default '())) ;list of <nginx-upstream-configuration>
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(file nginx-configuration-file ;#f | string | file-like
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(default #f)))
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(define (config-domain-strings names)
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"Return a string denoting the nginx config representation of NAMES, a list
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of domain names."
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(map (match-lambda
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('default "_ ")
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((? string? str) (list str " ")))
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names))
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(define (config-index-strings names)
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"Return a string denoting the nginx config representation of NAMES, a list
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of index files."
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(map (match-lambda
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((? string? str) (list str " ")))
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names))
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(define emit-nginx-location-config
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(match-lambda
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(($ <nginx-location-configuration> uri body)
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(list
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" location " uri " {\n"
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(map (lambda (x) (list " " x "\n")) body)
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" }\n"))
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(($ <nginx-named-location-configuration> name body)
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(list
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" location @" name " {\n"
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(map (lambda (x) (list " " x "\n")) body)
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" }\n"))))
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(define (emit-nginx-server-config server)
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(let ((http-port (nginx-server-configuration-http-port server))
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(https-port (nginx-server-configuration-https-port server))
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(server-name (nginx-server-configuration-server-name server))
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(ssl-certificate (nginx-server-configuration-ssl-certificate server))
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(ssl-certificate-key
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(nginx-server-configuration-ssl-certificate-key server))
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(root (nginx-server-configuration-root server))
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(index (nginx-server-configuration-index server))
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(server-tokens? (nginx-server-configuration-server-tokens? server))
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(locations (nginx-server-configuration-locations server)))
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(define-syntax-parameter <> (syntax-rules ()))
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(define-syntax-rule (and/l x tail ...)
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(let ((x* x))
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(if x*
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(syntax-parameterize ((<> (identifier-syntax x*)))
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(list tail ...))
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'())))
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(for-each
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(match-lambda
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((record-key . file)
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(if (and file (not (file-exists? file)))
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(error
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(simple-format
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#f
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"~A in the nginx configuration for the server with name \"~A\" does not exist" record-key server-name)))))
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`(("ssl-certificate" . ,ssl-certificate)
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("ssl-certificate-key" . ,ssl-certificate-key)))
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(list
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" server {\n"
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(and/l http-port " listen " (number->string <>) ";\n")
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(and/l https-port " listen " (number->string <>) " ssl;\n")
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" server_name " (config-domain-strings server-name) ";\n"
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(and/l ssl-certificate " ssl_certificate " <> ";\n")
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(and/l ssl-certificate-key " ssl_certificate_key " <> ";\n")
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" root " root ";\n"
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" index " (config-index-strings index) ";\n"
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" server_tokens " (if server-tokens? "on" "off") ";\n"
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"\n"
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(map emit-nginx-location-config locations)
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"\n"
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" }\n")))
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(define (emit-nginx-upstream-config upstream)
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(list
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" upstream " (nginx-upstream-configuration-name upstream) " {\n"
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(map (lambda (server)
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(simple-format #f " server ~A;\n" server))
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(nginx-upstream-configuration-servers upstream))
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" }\n"))
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(define (flatten . lst)
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"Return a list that recursively concatenates all sub-lists of LST."
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(define (flatten1 head out)
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(if (list? head)
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(fold-right flatten1 out head)
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(cons head out)))
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(fold-right flatten1 '() lst))
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(define (default-nginx-config nginx log-directory run-directory server-list upstream-list)
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(apply mixed-text-file "nginx.conf"
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(flatten
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"user nginx nginx;\n"
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"pid " run-directory "/pid;\n"
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"error_log " log-directory "/error.log info;\n"
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"http {\n"
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" client_body_temp_path " run-directory "/client_body_temp;\n"
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" proxy_temp_path " run-directory "/proxy_temp;\n"
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" fastcgi_temp_path " run-directory "/fastcgi_temp;\n"
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" uwsgi_temp_path " run-directory "/uwsgi_temp;\n"
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" scgi_temp_path " run-directory "/scgi_temp;\n"
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" access_log " log-directory "/access.log;\n"
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" include " nginx "/share/nginx/conf/mime.types;\n"
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"\n"
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(map emit-nginx-upstream-config upstream-list)
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(map emit-nginx-server-config server-list)
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"}\n"
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"events {}\n")))
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(define %nginx-accounts
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(list (user-group (name "nginx") (system? #t))
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(user-account
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(name "nginx")
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(group "nginx")
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(system? #t)
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(comment "nginx server user")
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(home-directory "/var/empty")
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(shell (file-append shadow "/sbin/nologin")))))
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(define nginx-activation
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(match-lambda
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(($ <nginx-configuration> nginx log-directory run-directory server-blocks
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upstream-blocks file)
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#~(begin
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(use-modules (guix build utils))
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(format #t "creating nginx log directory '~a'~%" #$log-directory)
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(mkdir-p #$log-directory)
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(format #t "creating nginx run directory '~a'~%" #$run-directory)
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(mkdir-p #$run-directory)
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(format #t "creating nginx temp directories '~a/{client_body,proxy,fastcgi,uwsgi,scgi}_temp'~%" #$run-directory)
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(mkdir-p (string-append #$run-directory "/client_body_temp"))
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(mkdir-p (string-append #$run-directory "/proxy_temp"))
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(mkdir-p (string-append #$run-directory "/fastcgi_temp"))
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(mkdir-p (string-append #$run-directory "/uwsgi_temp"))
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(mkdir-p (string-append #$run-directory "/scgi_temp"))
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;; Start-up logs. Once configuration is loaded, nginx switches to
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;; log-directory.
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(mkdir-p (string-append #$run-directory "/logs"))
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;; Check configuration file syntax.
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(system* (string-append #$nginx "/sbin/nginx")
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"-c" #$(or file
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(default-nginx-config nginx log-directory
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run-directory server-blocks upstream-blocks))
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"-t")))))
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(define nginx-shepherd-service
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(match-lambda
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(($ <nginx-configuration> nginx log-directory run-directory server-blocks
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upstream-blocks file)
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(let* ((nginx-binary (file-append nginx "/sbin/nginx"))
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(nginx-action
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(lambda args
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#~(lambda _
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(zero?
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(system* #$nginx-binary "-c"
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#$(or file
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(default-nginx-config nginx log-directory
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run-directory server-blocks upstream-blocks))
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#$@args))))))
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;; TODO: Add 'reload' action.
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(list (shepherd-service
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(provision '(nginx))
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(documentation "Run the nginx daemon.")
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(requirement '(user-processes loopback))
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(start (nginx-action "-p" run-directory))
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(stop (nginx-action "-s" "stop"))))))))
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(define nginx-service-type
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(service-type (name 'nginx)
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(extensions
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(list (service-extension shepherd-root-service-type
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nginx-shepherd-service)
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(service-extension activation-service-type
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nginx-activation)
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(service-extension account-service-type
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(const %nginx-accounts))))
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(compose concatenate)
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(extend (lambda (config servers)
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(nginx-configuration
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(inherit config)
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(server-blocks
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(append (nginx-configuration-server-blocks config)
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servers)))))
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(default-value
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(nginx-configuration))))
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(define-record-type* <fcgiwrap-configuration> fcgiwrap-configuration
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make-fcgiwrap-configuration
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fcgiwrap-configuration?
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(package fcgiwrap-configuration-package ;<package>
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(default fcgiwrap))
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(socket fcgiwrap-configuration-socket
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(default "tcp:127.0.0.1:9000"))
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(user fcgiwrap-configuration-user
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(default "fcgiwrap"))
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(group fcgiwrap-configuration-group
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(default "fcgiwrap")))
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(define fcgiwrap-accounts
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(match-lambda
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(($ <fcgiwrap-configuration> package socket user group)
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(filter identity
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(list
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(and (equal? group "fcgiwrap")
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(user-group
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(name "fcgiwrap")
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(system? #t)))
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(and (equal? user "fcgiwrap")
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(user-account
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(name "fcgiwrap")
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(group group)
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(system? #t)
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(comment "Fcgiwrap Daemon")
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(home-directory "/var/empty")
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(shell (file-append shadow "/sbin/nologin")))))))))
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(define fcgiwrap-shepherd-service
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(match-lambda
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(($ <fcgiwrap-configuration> package socket user group)
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(list (shepherd-service
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(provision '(fcgiwrap))
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(documentation "Run the fcgiwrap daemon.")
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(requirement '(networking))
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(start #~(make-forkexec-constructor
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'(#$(file-append package "/sbin/fcgiwrap")
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"-s" #$socket)
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#:user #$user #:group #$group))
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(stop #~(make-kill-destructor)))))))
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(define fcgiwrap-service-type
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(service-type (name 'fcgiwrap)
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(extensions
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(list (service-extension shepherd-root-service-type
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fcgiwrap-shepherd-service)
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(service-extension account-service-type
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fcgiwrap-accounts)))
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(default-value (fcgiwrap-configuration))))
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