Variables Custom et multi-env dans PHP-FPM avec un PaaS

pm.max_spare = PM_MAX_CHILDREN_PLACEHOLDER
pm.start_servers = PM_START_SERVERS_PLACEHOLDER

{
"extra": {
"paas": {
"php-fpm-includes": [".scalingo/config/php-fpm/php-fpm-custom.conf"]
}
},
"scripts": {
"compile": ["php build.php"]
}
}

1. ; build.php

<?php

$appName = getenv('APP') ?: 'default';
$targetFile = '/app/vendor/php/etc/fpm.d/php-fpm-custom.conf';

$phpFpmConfigs = [
    'default' => [
        'start_servers' => 3,
        'min_spare' => 3,
        'max_spare' => 7
    ]
];

$config = $phpFpmConfigs[$appName] ?? $phpFpmConfigs['default'];

shell_exec("sed -i 's|PM_START_SERVERS_PLACEHOLDER|{$config['start_servers']}|g' $targetFile");
shell_exec("sed -i 's|PM_MIN_SPARE_PLACEHOLDER|{$config['min_spare']}|g' $targetFile");
shell_exec("sed -i 's|PM_MAX_SPARE_PLACEHOLDER|{$config['max_spare']}|g' $targetFile");