I setup latest https://github.com/coreos/kube-prometheus/ in an AWS EKS cluster in which I'm using the Amazon EBS CSI driver for persistent volume claims, but I don't see any "kubelet_volume_*" metrics being available in prometheus.
According to https://github.com/kubernetes-sigs/aws-ebs-csi-driver/issues/223 the metrics are not yet supported by EBS CSI, in which case what could I use to monitor the volumes free disk space?