I just want to point out that the correct line in th Dockerfile has to be:RUN sed -i 's/\(option http_auth iox_docker.gen:\).*/\option http_auth iox_docker.gen:AKCp5bAt5nK9nJBeq1nFe3Ywntfokny8f1oHeTYpLrGCYG9iv9P3gkX9KFj6wzHcQoLkwP5Pa/' /etc/opkg/opkg...