Fix rights on folders

Dockerfile

@@ -14,6 +14,8 @@ RUN docker-php-ext-install pdo_mysql bz2 curl fileinfo gd intl mbstring mysqli x
 RUN php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');" && php composer-setup.php && php -r "unlink('composer-setup.php');" && mv composer.phar /usr/local/bin/composer
 RUN composer install -n --no-scripts
 RUN mkdir -p /var/www/html/var
+RUN mkdir -p /var/www/html/var/log
+RUN mkdir -p /var/www/html/var/cache
 RUN chown -R www-data:www-data /var/www/html/var
 
 ENV APACHE_DOCUMENT_ROOT /var/www/html/public