Как залогинить юзера в symfony 3?

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// src/AppBundle/Security/LoginManager.php

namespace AppBundleSecurity;

use SymfonyComponentSecurityCoreAuthenticationTokenUsernamePasswordToken;
use SymfonyComponentSecurityCoreUserUserInterface;
use SymfonyComponentSecurityCoreUserUserProviderInterface;
use SymfonyComponentSecurityGuardTokenGuardTokenInterface;

class LoginManager
{
    private $provider;
    private $tokenStorage;

    public function __construct(UserProviderInterface $provider, TokenStorage $tokenStorage)
    {
        $this->provider = $provider;
        $this->tokenStorage = $tokenStorage;
    }

    public function loginUser(string $username, string $password): void
    {
        $user = $this->provider->loadUserByUsername($username);

        if (!$user instanceof UserInterface) {
            throw new RuntimeException(sprintf('User with username "%s" not found.', $username));
        }

        if (!$user->isPasswordValid($password)) {
            throw new RuntimeException('Invalid password.');
        }

        $token = new UsernamePasswordToken($user, $password, 'main', $user->getRoles());
        $this->tokenStorage->setToken($token);
    }
}

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# app/config/services.yml

services:
    AppBundleSecurityLoginManager:
        arguments:
            - '@security.user.provider.concrete.in_memory'
            - '@security.token_storage'

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    // Залогинить пользователя
    $loginManager->loginUser($username, $password);
    
    // Редирект на главную страницу или другую страницу после входа
    return $this->redirectToRoute('homepage');
}