I re-read the documentation for docker-stats on https://docs.librenms.org/Extensions/Applications/#docker-stats and realized that jq had to be installed on the docker images. It wasn’t installed in the stock docker images so I edited the Dockerfile and rebuild the container locally. I checked that jq is in fact available in the containers. It is. Yet there are still no graphs (or rrd files) available. LibreNMS log still tells me nothing relevant, unfortunately.
I’ll look into how I can make the log more verbose to try and find out where the problem is. In the meantime any suggestions are more than welcome.
Thanks
/klaus