wp-config.php Unique Keys and Salts settings from ENV

gistfile1.txt

define('AUTH_KEY',         $_SERVER["AUTH_KEY"]);
define('SECURE_AUTH_KEY',  $_SERVER["SECURE_AUTH_KEY"]);
define('LOGGED_IN_KEY',    $_SERVER["LOGGED_IN_KEY"]);
define('NONCE_KEY',        $_SERVER["NONCE_KEY"]);
define('AUTH_SALT',        $_SERVER["AUTH_SALT"]);
define('SECURE_AUTH_SALT', $_SERVER["SECURE_AUTH_SALT"]);
define('LOGGED_IN_SALT',   $_SERVER["LOGGED_IN_SALT"]);
define('NONCE_SALT',       $_SERVER["NONCE_SALT"]);