PHP 마이크로서비스에서 서비스 검색 및 로드 밸런싱 기능을 구현하는 방법

class Registry {
    private static $services = [];
    
    public static function registerService($serviceName, $host, $port) {
        self::$services[$serviceName][] = [
            'host' => $host,
            'port' => $port,
        ];
    }
    
    public static function getService($serviceName) {
        $services = self::$services[$serviceName] ?? [];
        $index = mt_rand(0, count($services) - 1);
        return $services[$index] ?? null;
    }
}

Registry::registerService('user-service', 'localhost', 8001);
Registry::registerService('user-service', 'localhost', 8002);
Registry::registerService('order-service', 'localhost', 9001);

$userService = Registry::getService('user-service');
$orderService = Registry::getService('order-service');

echo "User service: " . $userService['host'] . ":" . $userService['port'] . "
";
echo "Order service: " . $orderService['host'] . ":" . $orderService['port'] . "
";

class LoadBalancer {
    private static $services = [];
    private static $index = 0;
    
    public static function addService($serviceName, $host, $port) {
        self::$services[$serviceName][] = [
            'host' => $host,
            'port' => $port,
        ];
    }
    
    public static function getService($serviceName) {
        $services = self::$services[$serviceName] ?? [];
        $index = self::$index % count($services);
        self::$index++;
        return $services[$index] ?? null;
    }
}

LoadBalancer::addService('user-service', 'localhost', 8001);
LoadBalancer::addService('user-service', 'localhost', 8002);
LoadBalancer::addService('order-service', 'localhost', 9001);

for ($i = 0; $i < 10; $i++) {
    $userService = LoadBalancer::getService('user-service');
    echo "User service: " . $userService['host'] . ":" . $userService['port'] . "
";
}