Configurator

A few simple tools to manage configuration data sanely. These tools are to hold environment data that can be shared without risk. They are not designed to hold 'secrets' e.g. api/oauth keys.

• Config file generator

• Environment settings generator

• Convert PHP ini files to PHP-FPM format

Philosophy

Environment variables need to be granular controls. Although they can be grouped together as "environments", they need to be configurable on a per-deploy basis without duplicating large blocks of information.

They also need to be stored alongside the application's code so that they can be maintained easily.

This library allows you to do these two things. All environment settings can be stored in a simple way, and then extracted and combined with arbitrary combinations. E.g. using 'centos,dev' as the environment setting uses all the 'centos' environment settings, with the 'dev' settings over-riding any duplicate settings.

Example usage for people who don't like reading instructions

If you install Configurator through Composer, the executable files will be in the vendor/bin directory and can be run with:

# Generate nginx config file for the centos,dev environment
vendor/bin/configurate -p example/config.php example/config_template/nginx.conf.php autogen/nginx.conf "centos,dev"

# Generate a PHP file that contains a function which returns the current application env settings
vendor/bin/genenv -p example/config.php example/envRequired.php autogen/appEnv.php "centos,dev"

# Convert a PHP ini file to be in the PHP-FPM format
vendor/bin/fpmconv autogen/php.ini autogen/php.fpm.ini

Config file generator

This tool allows you to generate config files from PHP based templates and PHP data files that hold all of the settings for the different environments.

Source config template file:

<?php

$config = <<< END

server {

    access_log  ${'nginx.log.directory'}/project.access.log requestTime;    
    error_log  ${'nginx.log.directory'}/project.error.log;
    root ${'project.root.directory'}/public;
}

END;

return $config;

Data file that holds data for arbitrary environments:

<?php

$centos = [
    'nginx.log.directory' => '/var/log/nginx', 
    'project.root.directory' => '/home/project',
];

$windows = [
    'nginx.log.directory' => 'c:/nginx', 
    'project.root.directory' => 'c:/documents/project',
];

$john = [
    'project.root.directory' => '/home/workdir/project',
]

Running the command configurate data/nginx.conf.php var/generated/nginx.conf centos,john -p settings.php would generate the file:

    access_log  /var/log/nginx/project.access.log requestTime;    
    error_log  /var/log/nginx/project.error.log;
    root /home/workdir/project/public;

Syntax

configurate [-p|--phpsettings="..."] [-j|--jssettings="..."] input output environment

-p	A comma separated list of PHP data files. Each need to return an array of data.
-j	A comma separated list of JSON data files.
-y	A comma separated list of YAML files.
input	The input template file.
output	The output file to write.
environment	A comma separated list of environment settings to apply.

Generate environment settings

A tool that will parse the environment settings required by an application and the data files that hold the settings for all environments, and generate a file that contains a function which returns an array of what env settings are required by this application.

Given this file listing the environment settings required by an application:

<?php

use ExampleApp\AppConfig;

$env = [
    AppConfig::CACHING_SETTING,
    AppConfig::SCRIPT_PACKING,
    AppConfig::FILE_STORAGE
];

return $env;

And a data file that holds all the data for the various environment settings:

$dev = [
    AppConfig::SCRIPT_PACKING => true,
    AppConfig::CACHING_SETTING => 'caching.disable',
];

$live = [
    AppConfig::SCRIPT_PACKING => true,
    AppConfig::CACHING_SETTING => 'caching.time'
]; 

// Anyone doing UX testing needs to have the scripts packed together
// to avoid slow UI responses
$uxtesting = [AppConfig::SCRIPT_PACKING => true];

Running the command bin/genenv -p environment/config.php environment/envRequired.php env.php dev,uxtesting produces a file containing a single function which contains all the requested env settings:

<?php

function getAppEnv() {
    static $env = [
        'caching.setting' => 'caching.disable',
        'script.packing' => 'true',
    ];

    return $env;
}

The keys are actual strings rather than the constants used in the application to allow the settings to be used outside of the application.

Syntax

genenv [-p|--phpsettings="..."] [-j|--jssettings="..."] input output environment

-p	A comma separated list of PHP data files. Each need to return an array of data.
-j	A comma separated list of JSON data files.
-y	A comma separated list of YAML files.
input	The input template file.
output	The output file to write.
environment	A comma separated list of environment settings to apply.

Convert PHP ini files to PHP-FPM format

Because of reasons, PHP-FPM doesn't use the standard PHP in file format when including ini files in a pool in the PHP-FPM conf file. This aspect of the Configurator converts PHP style ini files to the format PHP-FPM expects:

Input ini file:

extension=imagick.so
default_charset = "utf-8";
post_max_size = 10M

Running the command php bin/fpmconv example.php.ini example.phpfpm.ini

will generate this PHP-FPM ini file:

php_admin_value[extension] = "imagick.so"
php_admin_value[default_charset] = "utf-8"
php_admin_value[post_max_size] = "10M"