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197 lines
6.0 KiB
ReStructuredText
197 lines
6.0 KiB
ReStructuredText
.. _php_fpm_conf:
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************
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php-fpm.conf
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************
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``php-fpm.conf`` changes are global to all projects, but will only affect the currently selected
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PHP version.
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**Table of Contents**
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.. contents:: :local:
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General
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=======
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You can set custom php-fpm.conf configuration options for each PHP version separately.
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These changes affect the PHP-FPM process itself, global as well as pool specific configuration can
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be set.
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.. note::
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The default PHP-FPM pool is called ``www`` in case you want to make changes to it.
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See the directory structure for PHP-FPM configuration directories inside ``./cfg/`` directory:
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.. code-block:: bash
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host> ls -l path/to/devilbox/cfg/ | grep 'php-fpm'
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drwxr-xr-x 2 cytopia cytopia 4096 Mar 5 21:53 php-fpm-5.2/
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drwxr-xr-x 2 cytopia cytopia 4096 Mar 5 21:53 php-fpm-5.3/
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drwxr-xr-x 2 cytopia cytopia 4096 Mar 5 21:53 php-fpm-5.4/
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drwxr-xr-x 2 cytopia cytopia 4096 Mar 5 21:53 php-fpm-5.5/
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drwxr-xr-x 2 cytopia cytopia 4096 Apr 3 22:04 php-fpm-5.6/
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drwxr-xr-x 2 cytopia cytopia 4096 Mar 5 21:53 php-fpm-7.0/
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drwxr-xr-x 2 cytopia cytopia 4096 Mar 5 21:53 php-fpm-7.1/
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drwxr-xr-x 2 cytopia cytopia 4096 Mar 5 21:53 php-fpm-7.2/
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drwxr-xr-x 2 cytopia cytopia 4096 Mar 5 21:53 php-fpm-7.3/
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Customization is achieved by placing a file into ``cfg/php-fpm-X.X/`` (where ``X.X`` stands for
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your PHP version). The file must end by ``.conf`` in order to be sourced by the PHP-FPM server.
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Each of the PHP-FPM conf configuration directories already contains three example file:
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``devilbox-fpm.conf-default``, ``devilbox-fpm.conf-pm_dynamic`` and ``devilbox-fpm.conf-pm_ondemand``.
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**devilbox-fpm.conf-default**
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This file holds the exact settings that are currently in place by each PHP-FPM container.
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Copy it (do not simply rename it) to a different file ending by ``.conf`` and start adjusting it.
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**devilbox-fpm.conf-pm_dynamic**
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This file holds some sane example configuration to switch PHP-FPM scheduler to ``dynamic``
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(The default is ``ondemand``).
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Copy it (do not simply rename it) to a different file ending by ``.conf`` and start adjusting it.
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**devilbox-fpm.conf-pm_ondemand**
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This file holds the current default values for the PHP-FPM scheduler which is using ``ondemand``.
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Copy it (do not simply rename it) to a different file ending by ``.conf`` and start adjusting it.
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**How to apply the settings**
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In order for the changes to be applied, you will have to restart the Devilbox.
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.. seealso::
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To find out about all available PHP-FPM directives, global or pool specific have a look
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at its documentation: https://secure.php.net/manual/en/install.fpm.configuration.php
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Examples
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========
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Change rlimit core for master process for PHP 7.1
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-------------------------------------------------
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The following examples shows you how to change the
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`rlimit_core <https://secure.php.net/manual/en/install.fpm.configuration.php#rlimit-core-master>`_
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of PHP-FPM 7.1 master process to 100.
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.. code-block:: bash
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# Navigate to the Devilbox directory
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host> cd path/to/devilbox
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# Navigate to PHP 7.1 config directory
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host> cd cfg/php-fpm-7.1
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# Create new conf file
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host> touch rlimit.conf
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Now add the following content to the file:
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.. code-block:: ini
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:caption: rlimit.conf
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[global]
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rlimit_core = 100
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.. important:: Note the ``[global]`` section.
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In order to apply the changes you need to restart the Devilbox.
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Change child process on pool ``www`` for PHP 5.6
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------------------------------------------------
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The following examples shows you how to change the
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`pm <https://secure.php.net/manual/en/install.fpm.configuration.php#pm>`_,
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`pm.max_children <https://secure.php.net/manual/en/install.fpm.configuration.php#pm.max-children>`_,
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`pm.start_servers <https://secure.php.net/manual/en/install.fpm.configuration.php#pm.start-servers>`_,
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`pm.min_spare_servers <https://secure.php.net/manual/en/install.fpm.configuration.php#pm.min-spare-servers>`_
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and
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`pm.max_spare_servers <https://secure.php.net/manual/en/install.fpm.configuration.php#pm.max-spare-servers>`_
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of PHP-FPM 5.6 on pool ``www``.
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.. code-block:: bash
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# Navigate to the Devilbox directory
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host> cd path/to/devilbox
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# Navigate to PHP 5.6 config directory
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host> cd cfg/php-fpm-5.6
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# Create new conf file
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host> touch www_server.conf
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Now add the following content to the file:
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.. code-block:: ini
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:caption: www_server.conf
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[www]
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; Pool config
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pm = dynamic
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pm.max_children = 10
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pm.start_servers = 3
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pm.min_spare_servers = 2
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pm.max_spare_servers = 5
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.. important:: Note the ``[www]`` section.
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In order to apply the changes you need to restart the Devilbox.
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Set non-overwritable php.ini values for PHP 7.0
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-----------------------------------------------
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You can also set ``php.ini`` values that cannot be overwritten by ``php.ini`` or the ``ini_set()``
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function of PHP. This might be useful to make sure a specific value is enforced and will not be
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changed by some PHP frameworks on-the-fly.
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This is achieved by ``php_admin_flag`` and ``php_admin_value`` that are parsed directly to PHP-FPM.
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.. seealso:: https://secure.php.net/manual/en/install.fpm.configuration.php
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The following example will disable built-in PHP functions globally and non-overwriteable for PHP 7.0.
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.. code-block:: bash
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# Navigate to the Devilbox directory
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host> cd path/to/devilbox
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# Navigate to PHP 7.0 config directory
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host> cd cfg/php-fpm-7.0
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# Create new conf file
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host> touch admin.conf
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Now add the following content to the file:
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.. code-block:: ini
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:caption: admin.conf
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[www]
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php_admin_value[disable_functions] = link,symlink,popen,exec,system,shell_exec
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.. important:: Note the ``[www]`` section.
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.. important::
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This kind of setting only has affects PHP files served through PHP-FPM, when you run php
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on the command line, this setting will be ignored.
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.. important::
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Be aware that none of your projects can use the above disabled functions anymore.
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They will simply not exist for PHP 7.0 after that configuration took affect.
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In order to apply the changes you need to restart the Devilbox.
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