1 files changed, 6 insertions, 1 deletions

diff --git a/docs/node-mixin/config.libsonnet b/docs/node-mixin/config.libsonnet
index 5406bdb..de84b9e 100644
--- a/docs/node-mixin/config.libsonnet
+++ b/docs/node-mixin/config.libsonnet
@@ -1,11 +1,16 @@
 {
   _config+:: {
     // Selectors are inserted between {} in Prometheus queries.
+
+    // Select the metrics coming from the node exporter.
     nodeExporterSelector: 'job="node-exporter"',
 
-    // Mainly extracted because they are repetitive, but also useful to customize.
+    // Select the fstype for filesystem-related queries.
     fsSelector: 'fstype=~"ext.|xfs",mountpoint!="/var/lib/docker/aufs"',
 
+    // Select the device for disk-related queries.
+    diskDeviceSelector: 'device=~"(sd|xvd).+"',
+
     grafana_prefix: '',
   },
 }