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Better order of README.

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Jeff Geerling 2015-05-31 22:37:45 -05:00
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@ -40,40 +40,6 @@ You will also need to override the default `php_packages` list and add `php-fpm`
This role does not manage fpm-specific www pool configuration (found in `/etc/php-fpm.d/www.conf` on RedHat/CentOS and `/etc/php5/fpm/pool.d/www.conf` on Debian/Ubuntu), but rather allows you to manage those files on your own. If you change that file, remember to notify the `restart php-fpm` handler so PHP picks up the new settings once in place. Settings like `pm.max_children` and other `pm.*` settings can have a dramatic impact on server performance, and should be tuned specifically for each application and server configuration. This role does not manage fpm-specific www pool configuration (found in `/etc/php-fpm.d/www.conf` on RedHat/CentOS and `/etc/php5/fpm/pool.d/www.conf` on Debian/Ubuntu), but rather allows you to manage those files on your own. If you change that file, remember to notify the `restart php-fpm` handler so PHP picks up the new settings once in place. Settings like `pm.max_children` and other `pm.*` settings can have a dramatic impact on server performance, and should be tuned specifically for each application and server configuration.
### Installing from Source
If you need a specific version of PHP, or would like to test the latest (e.g. master) version of PHP, there's a good chance there's no suitable package already available in your platform's package manager. In these cases, you may choose to install PHP from source by compiling it directly.
Note that source compilation takes *much* longer than installing from packages (PHP HEAD takes 5+ minutes to compile on a modern quad-core computer, just as a point of reference).
php_install_from_source: false
Set this to `true` to install PHP from source instead of installing from packages.
php_source_version: "master"
The version of PHP to install from source (a git branch, tag, or commit hash).
php_source_clone_dir: "~/php-src"
php_source_install_path: "/opt/php"
Location where source will be cloned and installed, respectively.
php_source_make_command: "make"
Set the `make` command to `make --jobs=X` where `X` is the number of cores present on the server where PHP is being compiled. Will speed up compilation times dramatically if you have multiple cores.
php_source_configure_command: >
[...]
The `./configure` command that will build the Makefile to be used for PHP compilation. Add in all the options you need for your particular environment. Using a folded scalar (`>`) allows you to define the variable over multiple lines, which is extremely helpful for legibility and source control!
A few other notes/caveats for specific configurations:
- **Apache with `mpm_prefork`**: If you're using Apache with prefork as a webserver for PHP, you will need to make sure `apxs2` is available on your system (e.g. by installing `apache2-prefork-dev` in Ubuntu), and you will need to make sure the option `--with-apxs2` is defined in `php_source_configure_command`. Finally, you will need to make sure the `mpm_prefork` module is loaded instead of `mpm_worker` or `mpm_event`, and likely add a `phpX.conf` (where `X` is the major version of PHP) configuration file to the Apache module config folder with contents like [`php7.conf`](https://gist.github.com/geerlingguy/5ae5445f28e71264e8c1).
- **Apache with `mpm_event` or `mpm_worker`**: If you're using Apache with event or worker as a webserver for PHP, you will need to compile PHP with FPM. Make sure the option `--enable-fpm` is defined in `php_source_configure_command`. You'll also need to make sure Apache's support for CGI and event is installed (e.g. by installing `apache2-mpm-event` and `libapache2-mod-fastcgi`) and the `mpm_event` module is loaded.
- **Nginx**: If you're using Nginx as a webserver for PHP, you will need to compile PHP with FPM. Make sure the option `--enable-fpm` is defined in `php_source_configure_command`.
### php.ini settings ### php.ini settings
php_use_managed_ini: true php_use_managed_ini: true
@ -143,6 +109,40 @@ If you use APC, you will need to make sure APC is installed (it is installed by
You can also install APC via `pecl`, but it's simpler to manage the installation with the system's package manager. You can also install APC via `pecl`, but it's simpler to manage the installation with the system's package manager.
### Installing from Source
If you need a specific version of PHP, or would like to test the latest (e.g. master) version of PHP, there's a good chance there's no suitable package already available in your platform's package manager. In these cases, you may choose to install PHP from source by compiling it directly.
Note that source compilation takes *much* longer than installing from packages (PHP HEAD takes 5+ minutes to compile on a modern quad-core computer, just as a point of reference).
php_install_from_source: false
Set this to `true` to install PHP from source instead of installing from packages.
php_source_version: "master"
The version of PHP to install from source (a git branch, tag, or commit hash).
php_source_clone_dir: "~/php-src"
php_source_install_path: "/opt/php"
Location where source will be cloned and installed, respectively.
php_source_make_command: "make"
Set the `make` command to `make --jobs=X` where `X` is the number of cores present on the server where PHP is being compiled. Will speed up compilation times dramatically if you have multiple cores.
php_source_configure_command: >
[...]
The `./configure` command that will build the Makefile to be used for PHP compilation. Add in all the options you need for your particular environment. Using a folded scalar (`>`) allows you to define the variable over multiple lines, which is extremely helpful for legibility and source control!
A few other notes/caveats for specific configurations:
- **Apache with `mpm_prefork`**: If you're using Apache with prefork as a webserver for PHP, you will need to make sure `apxs2` is available on your system (e.g. by installing `apache2-prefork-dev` in Ubuntu), and you will need to make sure the option `--with-apxs2` is defined in `php_source_configure_command`. Finally, you will need to make sure the `mpm_prefork` module is loaded instead of `mpm_worker` or `mpm_event`, and likely add a `phpX.conf` (where `X` is the major version of PHP) configuration file to the Apache module config folder with contents like [`php7.conf`](https://gist.github.com/geerlingguy/5ae5445f28e71264e8c1).
- **Apache with `mpm_event` or `mpm_worker`**: If you're using Apache with event or worker as a webserver for PHP, you will need to compile PHP with FPM. Make sure the option `--enable-fpm` is defined in `php_source_configure_command`. You'll also need to make sure Apache's support for CGI and event is installed (e.g. by installing `apache2-mpm-event` and `libapache2-mod-fastcgi`) and the `mpm_event` module is loaded.
- **Nginx**: If you're using Nginx as a webserver for PHP, you will need to compile PHP with FPM. Make sure the option `--enable-fpm` is defined in `php_source_configure_command`.
## Dependencies ## Dependencies
None. None.