Export local path size metrics
Right now we don't have a way to know how much the different local path volume use, or to see how volume size evolve over time.
In the past I used a simple system timer that used the textfile-collector on the host to add the volume size to node-exporter. That's not a great solution because it needs things configured on the host (via ansible).
I found https://github.com/ugur99/local-path-provisioner-pv-metrics-exporter will provide that metrics, however, it seems that it uses jobs to push to a pushgateway, which is not what we want. But this could maybe also be achieved by a simple kubernetes job that does the same.
Or maybe there's another exporter out there that does what we want ?