Is there no way in kubernetes to add flink configuration (e.g. taskmanager.numberOfTaskSlots) via environment variables? For instance in the Docker doc it looks like you can add a config via FLINK_PROPERTIES, but this isn't working for me in kubernetes...

we don’t do it like this so haven’t tested it, but there is this method:

That's not an environment variable being used to change flinkConfiguration unfortunately. The workaround I've found is just pushing them down from the Kubernetes Operator which is not my favorite.