gnu: Add fcgiwrap service.
* doc/guix.texi (Web Services): Add documentation. * gnu/services/web.scm (<fcgiwrap-configuration>): New record type. (fcgiwrap-accounts, fcgiwrap-shepherd-service): New service extensions. (fcgiwrap-service-type): New service type. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
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Andy Wingo
Ludovic Courtès
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commit
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@ -13731,7 +13731,8 @@ Local accounts with lower values will silently fail to authenticate.
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@cindex web
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@cindex www
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@cindex HTTP
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The @code{(gnu services web)} module provides the following service:
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The @code{(gnu services web)} module provides the nginx web server and
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also a fastcgi wrapper daemon.
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@deffn {Scheme Procedure} nginx-service [#:nginx nginx] @
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[#:log-directory ``/var/log/nginx''] @
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@ -13883,6 +13884,56 @@ body of a named location block cannot contain location blocks.
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@end table
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@end deftp
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@cindex fastcgi
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@cindex fcgiwrap
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FastCGI is an interface between the front-end and the back-end of a web
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service. It is a somewhat legacy facility; new web services should
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generally just talk HTTP between the front-end and the back-end.
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However there are a number of back-end services such as PHP or the
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optimized HTTP Git repository access that use FastCGI, so we have
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support for it in Guix.
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To use FastCGI, you configure the front-end web server (e.g., nginx) to
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dispatch some subset of its requests to the fastcgi backend, which
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listens on a local TCP or UNIX socket. There is an intermediary
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@code{fcgiwrap} program that sits between the actual backend process and
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the web server. The front-end indicates which backend program to run,
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passing that information to the @code{fcgiwrap} process.
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@defvr {Scheme Variable} fcgiwrap-service-type
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A service type for the @code{fcgiwrap} FastCGI proxy.
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@end defvr
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@deftp {Data Type} fcgiwrap-configuration
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Data type representing the configuration of the @code{fcgiwrap} serice.
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This type has the following parameters:
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@table @asis
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@item @code{package} (default: @code{fcgiwrap})
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The fcgiwrap package to use.
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@item @code{socket} (default: @code{tcp:127.0.0.1:9000})
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The socket on which the @code{fcgiwrap} process should listen, as a
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string. Valid @var{socket} values include
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@code{unix:@var{/path/to/unix/socket}},
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@code{tcp:@var{dot.ted.qu.ad}:@var{port}} and
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@code{tcp6:[@var{ipv6_addr}]:port}.
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@item @code{user} (default: @code{fcgiwrap})
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@itemx @code{group} (default: @code{fcgiwrap})
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The user and group names, as strings, under which to run the
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@code{fcgiwrap} process. The @code{fastcgi} service will ensure that if
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the user asks for the specific user or group names @code{fcgiwrap} that
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the corresponding user and/or group is present on the system.
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It is possible to configure a FastCGI-backed web service to pass HTTP
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authentication information from the front-end to the back-end, and to
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allow @code{fcgiwrap} to run the back-end process as a corresponding
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local user. To enable this capability on the back-end., run
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@code{fcgiwrap} as the @code{root} user and group. Note that this
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capability also has to be configured on the front-end as well.
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@end table
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@end deftp
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@node DNS Services
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@subsubsection DNS Services
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@ -41,7 +41,11 @@
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nginx-named-location-configuration
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nginx-named-location-configuration?
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nginx-service
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nginx-service-type))
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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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@ -305,3 +309,55 @@ files in LOG-DIRECTORY, and stores temporary runtime files in RUN-DIRECTORY."
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(server-blocks server-list)
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(upstream-blocks upstream-list)
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(file config-file))))
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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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