Shopware\Install\Services\Install\Release::createShopwareConfig PHP Method

    private function createShopwareConfig(InstallationRequest $request)
    {
        $this->configWriter->writeConfigPhp($request->getAbsoluteInstallDir(), $request->getDbUser() ?: $this->config['DatabaseConfig']['user'], $request->getDbPassword() ?: $this->config['DatabaseConfig']['pass'], $request->getDbName(), $request->getDbHost() ?: $this->config['DatabaseConfig']['host'], $request->getDbPort() ?: $this->config['DatabaseConfig']['port'] ?: 3306);
    }