---443--> |
          | HAProxy ------>Varnish(8081) ----------> apache2(8080)
---80---> |

RewriteCond %{HTTP_HOST} ^example.com [NC]
RewriteCond %{HTTP_HOST} ^www.example.com [NC]
RewriteRule ^(.*)$ https://www.example.com$1 [L,R=301]

RewriteCond %{DOCUMENT_ROOT}%{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ %{DOCUMENT_ROOT}/app_dev.php [QSA,L]