* Make FS space alerts thresholds configurable (#1)
This makes it possible to tweak the thresholds for
the NodeFilesystemSpaceFillingUp alerts. Which
might be necessary in systems like Kubernetes,
where the image garbage collector runs at 85%,
so it's not a problem that the disk reaches that usage %.
Signed-off-by: iuri aranda <iuri@skyscrapers.eu>
This addresses the blissful scenario where single-node failures are
unproblematic. No reason to wake somebody up if a node is about to
screw itself up by filling the disk.
Signed-off-by: beorn7 <beorn@grafana.com>
