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diff --git a/doc/guix.texi b/doc/guix.texi index 592cae5d59..bbeef47ec1 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -44,6 +44,7 @@ Copyright @copyright{} 2017 Tobias Geerinckx-Rice@* Copyright @copyright{} 2017 George Clemmer@* Copyright @copyright{} 2017 Andy Wingo@* Copyright @copyright{} 2017 Arun Isaac +Copyright @copyright{} 2017 nee Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or @@ -15081,6 +15082,145 @@ capability also has to be configured on the front-end as well. @end table @end deftp +@cindex php-fpm +PHP-FPM (FastCGI Process Manager) is an alternative PHP FastCGI implementation +with some additional features useful for sites of any size. + +These features include: +@itemize @bullet +@item Adaptive process spawning +@item Basic statistics (similar to Apache's mod_status) +@item Advanced process management with graceful stop/start +@item Ability to start workers with different uid/gid/chroot/environment +and different php.ini (replaces safe_mode) +@item Stdout & stderr logging +@item Emergency restart in case of accidental opcode cache destruction +@item Accelerated upload support +@item Support for a "slowlog" +@item Enhancements to FastCGI, such as fastcgi_finish_request() - +a special function to finish request & flush all data while continuing to do +something time-consuming (video converting, stats processing, etc.) +@end itemize +... and much more. + +@defvr {Scheme Variable} php-fpm-service-type +A Service type for @code{php-fpm}. +@end defvr + +@deftp {Data Type} php-fpm-configuration +Data Type for php-fpm service configuration. +@table @asis +@item @code{php} (default: @code{php}) +The php package to use. +@item @code{socket} (default: @code{(string-append "/var/run/php" (version-major (package-version php)) "-fpm.sock")}) +The address on which to accept FastCGI requests. Valid syntaxes are: +@table @asis +@item @code{"ip.add.re.ss:port"} +Listen on a TCP socket to a specific address on a specific port. +@item @code{"port"} +Listen on a TCP socket to all addresses on a specific port. +@item @code{"/path/to/unix/socket"} +Listen on a unix socket. +@end table + +@item @code{user} (default: @code{php-fpm}) +User who will own the php worker processes. +@item @code{group} (default: @code{php-fpm}) +Group of the worker processes. +@item @code{socket-user} (default: @code{php-fpm}) +User who can speak to the php-fpm socket. +@item @code{socket-group} (default: @code{php-fpm}) +Group that can speak to the php-fpm socket. +@item @code{pid-file} (default: @code{(string-append "/var/run/php" (version-major (package-version php)) "-fpm.pid")}) +The process id of the php-fpm process is written to this file +once the service has started. +@item @code{log-file} (default: @code{(string-append "/var/log/php" (version-major (package-version php)) "-fpm.log")}) +Log for the php-fpm master process. +@item @code{process-manager} (default: @code{(php-fpm-dynamic-process-manager-configuration)}) +Detailed settings for the php-fpm process manager. +Must be either: +@table @asis +@item @code{<php-fpm-dynamic-process-manager-configuration>} +@item @code{<php-fpm-static-process-manager-configuration>} +@item @code{<php-fpm-on-demand-process-manager-configuration>} +@end table +@item @code{display-errors} (default @code{#f}) +Determines wether php errors and warning should be sent to clients +and displayed in their browsers. +This is useful for local php development, but a security risk for public sites, +as error messages can reveal passwords and personal data. +@item @code{workers-logfile} (default @code{(string-append "/var/log/php" (version-major (package-version php)) "-fpm.www.log")}) +This file will log the @code{stderr} outputs of php worker processes. +Can be set to @code{#f} to disable logging. +@item @code{file} (default @code{#f}) +An optional override of the whole configuration. +You can use the @code{mixed-text-file} function or an absolute filepath for it. +@end table +@end deftp + +@deftp {Data type} php-fpm-dynamic-process-manager-configuration +Data Type for the @code{dynamic} php-fpm process manager. With the +@code{dynamic} process manager, spare worker processes are kept around +based on it's configured limits. +@table @asis +@item @code{max-children} (default: @code{5}) +Maximum of worker processes. +@item @code{start-servers} (default: @code{2}) +How many worker processes should be started on start-up. +@item @code{min-spare-servers} (default: @code{1}) +How many spare worker processes should be kept around at minimum. +@item @code{max-spare-servers} (default: @code{3}) +How many spare worker processes should be kept around at maximum. +@end table +@end deftp + +@deftp {Data type} php-fpm-static-process-manager-configuration +Data Type for the @code{static} php-fpm process manager. With the +@code{static} process manager, an unchanging number of worker processes +are created. +@table @asis +@item @code{max-children} (default: @code{5}) +Maximum of worker processes. +@end table +@end deftp + +@deftp {Data type} php-fpm-on-demand-process-manager-configuration +Data Type for the @code{on-demand} php-fpm process manager. With the +@code{on-demand} process manager, worker processes are only created as +requests arrive. +@table @asis +@item @code{max-children} (default: @code{5}) +Maximum of worker processes. +@item @code{process-idle-timeout} (default: @code{10}) +The time in seconds after which a process with no requests is killed. +@end table +@end deftp + + +@deffn {Scheme Procedure} nginx-php-fpm-location @ + [#:nginx-package nginx] @ + [socket (string-append "/var/run/php" @ + (version-major (package-version php)) @ + "-fpm.sock")] +A helper function to quickly add php to an @code{nginx-server-configuration}. +@end deffn + +A simple services setup for nginx with php can look like this: +@example +(services (cons* (dhcp-client-service) + (service php-fpm-service-type) + (service nginx-service-type + (nginx-server-configuration + (server-name '("example.com")) + (root "/srv/http/") + (locations + (list (nginx-php-location))) + (https-port #f) + (ssl-certificate #f) + (ssl-certificate-key #f))) + %base-services)) +@end example + @node Certificate Services @subsubsection Certificate Services |