. * * Main mapping table of environment variables to namespaced config values * */ return [ 'MYSQL_HOST' => ['database', 'hostname'], 'MYSQL_USERNAME' => ['database', 'username'], 'MYSQL_USER' => ['database', 'username'], 'MYSQL_PORT' => ['database', 'port'], 'MYSQL_PASSWORD' => ['database', 'password'], 'MYSQL_DATABASE' => ['database', 'database'], ];