Rancher monitoring app shows not all mounted node filesystems

Rancher 2.x
1

We use the Rancher Monitoring App (from Cluster Explorer) for our cluster and have troubles with monitoring the host filesystem. On the nodes we have the following mount points:

/var  <-- lv_var
/var/log  <-- lv_var_log 
/var/lib  <-- lv_var_lib 
/var/lib/docker  <-- lv_var_lib_docker

but in Prometheus we see only the the /var mount point.

node_filesystem_avail_bytes{device="/dev/mapper/rootvg-var_lv",endpoint="metrics",fstype="ext4",instance="10.238.22.214:9796",job="node-exporter",mountpoint="/var",namespace="cattle-monitoring-system",node="worker101",pod="rancher-monitoring-prometheus-node-exporter-hl8fr",service="rancher-monitoring-prometheus-node-exporter"}

Is there an additionally config which we must provide when we want monitor not only the root mount points?

Regards

3

tl;dr I‘ve mounted the root host filesystem … now it works as expected …

Is there a way to set values for dependency charts? In my case it should be enough to set the value of hostRootFsMount from the node exporter chart.

The dependent chart not supports this flag … for this reason it must be mounted via extraHostVolumeMounts