/**
 * @Route("/", name="landingPage")
 */
public function loginAction(Request $request)
{
    return $this->redirectToRoute('mainPage', array(), 301);
}

<VirtualHost *:80>
    ServerAdmin webmaster@localhost
    DocumentRoot /var/www/html/my-directory/web/

    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>

<IfModule mod_ssl.c>
<VirtualHost _default_:443>
    ServerAdmin webmaster@localhost

    DocumentRoot /var/www/html/my-directory/web

    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combine

    SSLEngine on
    SSLCertificateFile  /etc/ssl/certs/www.my-url.com.pem
    SSLCertificateKeyFile /etc/ssl/private/www.my-url.com.key

    <FilesMatch ".(cgi|shtml|phtml|php)$">
            SSLOptions +StdEnvVars
    </FilesMatch>
    <Directory /usr/lib/cgi-bin>
            SSLOptions +StdEnvVars
    </Directory>

    BrowserMatch "MSIE [2-6]"
            nokeepalive ssl-unclean-shutdown
            downgrade-1.0 force-response-1.0
    BrowserMatch "MSIE [17-9]" ssl-unclean-shutdown

</VirtualHost>

access_control:
  - { path: ^/admin/login, roles: IS_AUTHENTICATED_ANONYMOUSLY }
  - { path: ^/admin, roles: ROLE_ADMIN }