Monitoring with node-exporter

Why node-exporter does not take metrics from additional filesystems in RancherOS

RancherOS version

cat /etc/os-release

NAME=“RancherOS”
VERSION=v1.5.5
ID=rancheros
ID_LIKE=
VERSION_ID=v1.5.5
PRETTY_NAME=“RancherOS v1.5.5”
HOME_URL=“http://rancher.com/rancher-os/
SUPPORT_URL=“https://forums.rancher.com/c/rancher-os
BUG_REPORT_URL=“https://github.com/rancher/os/issues
BUILD_ID=

mounts configuration

ros config set mounts ‘[["/dev/sdb1","/var/lib/user-docker",“ext4”,""],["/dev/sdb2","/data",“ext4”,""],["/dev/sdb3","/var/lib/kubelet",“ext4”,""],["/dev/sdb4","/opt/rke",“ext4”,""]]’

filesystems

df -h

Filesystem Size Used Avail Use% Mounted on
overlay 4.7G 1.9G 2.6G 43% /
devtmpfs 16G 0 16G 0% /dev
tmpfs 16G 0 16G 0% /sys/fs/cgroup
/dev/sda1 4.7G 1.9G 2.6G 43% /mnt
none 16G 1.1M 16G 1% /run
shm 64M 0 64M 0% /dev/shm
/dev/sdb1 98G 600M 93G 1% /var/lib/user-docker
/dev/sdb2 49G 53M 47G 1% /data
/dev/sdb3 9.8G 37M 9.3G 1% /var/lib/kubelet
/dev/sdb4 9.8G 37M 9.3G 1% /opt/rke

node-exporter service configuration

node_exporter:
image: prometheus/node-exporter:v0.18.1
command: |
–path.procfs=/host/proc
–path.sysfs=/host/sys
–collector.filesystem.ignored-fs-types=^(autofs|binfmt_misc|cgroup|configfs|debugfs|devpts|devtmpfs|fusectl|hugetlbfs|mqueue|overlay|proc|procfs|pstore|rpc_pipefs|securityfs|sysfs|tracefs)$$
–collector.filesystem.ignored-mount-points=^/(dev|proc|sys|var/lib/docker/.+)($$|/)
–collector.ksmd
–collector.filesystem
–collector.mountstats
–path.rootfs=/host/root
–web.listen-address=0.0.0.0:9100
–log.level=debug
privileged: true
labels:
io.rancher.os.scope: “system”
io.rancher.os.after: “docker”
io.rancher.os.detach: “true”
ports:
- “9100:9100/tcp”
volumes:
- /proc:/host/proc:ro
- /sys:/host/sys:ro
- /:/host/root:ro
restart: unless-stopped

metrics

curl localhost:9100/metrics | grep node_filesystem_free_bytes

% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:–:-- --:–:-- --:–:-- 0# HELP node_filesystem_free_bytes Filesystem free space in bytes.

TYPE node_filesystem_free_bytes gauge

node_filesystem_free_bytes{device="/dev/sda1",fstype=“ext4”,mountpoint="/"} 2.98029056e+09
node_filesystem_free_bytes{device=“none”,fstype=“tmpfs”,mountpoint="/run"} 1.6853835776e+10
100 57003 0 57003 0 0 1562k 0 --:–:-- --:–:-- --:–:-- 1637k

problem

I would like to receive metrics for the filesystems:

/data
/var/lib/user-docker
/var/lib/kubelet
/opt/rke

but I only have metrics from filesystem:

/