Added config directory to docker image

Author: andriyun

.docker/os2web/Dockerfile

@@ -40,7 +40,10 @@ RUN echo '<?php $settings["project_env"] = PROD_ENV; ' > /opt/drupal/web/sites/d
 	rm -rf /opt/drupal/web/sites/default/files; \
 	ln -sf /opt/drupal/files /opt/drupal/web/sites/default/files; \
 	mkdir -p private; \
-	chown -R www-data:www-data /opt/drupal/private /opt/drupal/files
+	# Adding syn directory.
+	mkdir -p config/sync; \
+	# Adjusting ownership
+	chown -R www-data:www-data /opt/drupal/private /opt/drupal/files /opt/drupal/config/sync
 
 COPY settings/prod.settings.php /opt/drupal/web/sites/default/
 COPY entrypoint.sh /