README

Compares application environment variables against .env file. It could be useful on InitContainer stage to validate cluster settings for PHP application deployment. Based on Symfony/Console component,

Installation:

composer require imunhatep/checkenv

Usage example:

cd ./bin
ln -s ../vendor/imunhatep/checkenv/bin/check-env 
cd ..

./bin/check-env c:c:e --dot-env=".env.dist"

Note: by default Symfony4 loads .env on every application invoke, check your project config/bootstrap.php:

Fix for config/bootstrap.php, to skip loading .env in case APP_ENV variable is defined.

#...

// Load cached env vars if the .env.local.php file exists
// Run "composer dump-env prod" to create it (requires symfony/flex >=1.2)
if (is_array($env = @include dirname(__DIR__).'/.env.local.php')) {
    foreach ($env as $k => $v) {
        $_ENV[$k] = $_ENV[$k] ?? (isset($_SERVER[$k]) && 0 !== strpos($k, 'HTTP_') ? $_SERVER[$k] : $v);
    }
} elseif (!class_exists(Dotenv::class)) {
    throw new RuntimeException('Please run "composer require symfony/dotenv" to load the ".env" files configuring the application.');
} elseif (getenv('APP_ENV') === false) {
    // load all the .env files
    (new Dotenv(false))->loadEnv(dirname(__DIR__).'/.env');
}

#...

Added check: } elseif (getenv('APP_ENV') === false) {