added node exporter collection config

Author: wtripp180901

ansible/roles/kube_prometheus_stack/defaults/main/helm.yml

@@ -155,6 +155,7 @@ kube_prometheus_stack_release_defaults:
         clusterrole: "server"
 
   prometheus-node-exporter:
+    extraArgs: "{{ node_exporter_args }}"
     image:
       tag: "{{ node_exporter_image_tag }}"
     prometheus:

ansible/roles/kube_prometheus_stack/defaults/main/main.yml

@@ -90,4 +90,6 @@ grafana_home_dashboard: 13427.json # node exporter slurm
 alertmanager_image_tag: v0.27.0
 
 node_exporter_image_tag: v1.8.2
-
+node_exporter_args: 
+  - --collector.filesystem.mount-points-exclude=^/(dev|proc|sys|var/lib/docker/.+|var/lib/kubelet/.+)($|/)
+  - --collector.filesystem.fs-types-exclude=^(autofs|binfmt_misc|bpf|cgroup2?|configfs|debugfs|devpts|devtmpfs|fusectl|hugetlbfs|iso9660|mqueue|nsfs|overlay|proc|procfs|pstore|rpc_pipefs|securityfs|selinuxfs|squashfs|sysfs|tracefs)$

ansible/roles/kube_prometheus_stack/tasks/main.yml

@@ -158,7 +158,7 @@
     wait: yes
     wait_timeout: "{{ kube_prometheus_stack_wait_timeout }}"
 
-- name: Delete unwanted default dashboards # currently no way to selectively enabled in helm chart
+- name: Delete unwanted default dashboards # currently no way to selectively enable in helm chart
   kubernetes.core.k8s:
     state: absent
     kind: ConfigMap

environments/common/inventory/group_vars/all/node_exporter.yml

@@ -0,0 +1,4 @@
+# To disable unwanted metrics or enable non-default metrics, add --no-collector or --collector flags to list below (see https://github.com/prometheus/node_exporter?tab=readme-ov-file#collectors)
+node_exporter_args:
+  - --collector.filesystem.mount-points-exclude=^/(dev|proc|sys|var/lib/docker/.+|var/lib/kubelet/.+)($|/)
+  - --collector.filesystem.fs-types-exclude=^(autofs|binfmt_misc|bpf|cgroup2?|configfs|debugfs|devpts|devtmpfs|fusectl|hugetlbfs|iso9660|mqueue|nsfs|overlay|proc|procfs|pstore|rpc_pipefs|securityfs|selinuxfs|squashfs|sysfs|tracefs)$