Node Exporter

This document describes how to configure your Google Kubernetes Engine deployment so that you can use Google Cloud Managed Service for Prometheus to collect metrics from Node Exporter. This document shows you how to do the following:

Set up Node Exporter to report metrics.
Configure a PodMonitoring resource for Managed Service for Prometheus to collect the exported metrics.
Access a dashboard in Cloud Monitoring to view the metrics.
Configure alerting rules to monitor the metrics.

These instructions apply only if you are using managed collection with Managed Service for Prometheus. If you are using self-deployed collection, then see the source repository for Node Exporter for installation information.

These instructions are provided as an example and are expected to work in most Kubernetes environments. If you are having trouble installing an application or exporter due to restrictive security or organizational policies, then we recommend you consult open-source documentation for support.

Prerequisites

To collect metrics from Node Exporter by using Managed Service for Prometheus and managed collection, your deployment must meet the following requirements:

Your cluster must be running Google Kubernetes Engine version 1.21.4-gke.300 or later.
You must be running Managed Service for Prometheus with managed collection enabled. For more information, see Get started with managed collection .
To use dashboards available in Cloud Monitoring for the integration, you must use node_exporter version 1.3.1 or later.
For more information about available dashboards, see Install dashboards .

These metrics are already enabled for nodes in GKE Autopilot clusters.

Install Node Exporter

You can use the following configuration to install Node Exporter:

  # Copyright 2022 Google LLC 
 # 
 # Licensed under the Apache License, Version 2.0 (the "License"); 
 # you may not use this file except in compliance with the License. 
 # You may obtain a copy of the License at 
 # 
 #     https://www.apache.org/licenses/LICENSE-2.0 
 # 
 # Unless required by applicable law or agreed to in writing, software 
 # distributed under the License is distributed on an "AS IS" BASIS, 
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 # See the License for the specific language governing permissions and 
 # limitations under the License. 
 apiVersion 
 : 
  
 apps/v1 
 kind 
 : 
  
 DaemonSet 
 metadata 
 : 
  
 namespace 
 : 
  
 gmp-public 
  
 name 
 : 
  
 node-exporter 
  
 labels 
 : 
  
 app.kubernetes.io/name 
 : 
  
 node-exporter 
  
 app.kubernetes.io/version 
 : 
  
 1.8.2 
 spec 
 : 
  
 selector 
 : 
  
 matchLabels 
 : 
  
 app.kubernetes.io/name 
 : 
  
 node-exporter 
  
 updateStrategy 
 : 
  
 type 
 : 
  
 RollingUpdate 
  
 rollingUpdate 
 : 
  
 maxUnavailable 
 : 
  
 10% 
  
 template 
 : 
  
 metadata 
 : 
  
 labels 
 : 
  
 app.kubernetes.io/name 
 : 
  
 node-exporter 
  
 app.kubernetes.io/version 
 : 
  
 1.8.2 
  
 spec 
 : 
  
 affinity 
 : 
  
 nodeAffinity 
 : 
  
 requiredDuringSchedulingIgnoredDuringExecution 
 : 
  
 nodeSelectorTerms 
 : 
  
 - 
  
 matchExpressions 
 : 
  
 - 
  
 key 
 : 
  
 kubernetes.io/arch 
  
 operator 
 : 
  
 In 
  
 values 
 : 
  
 - 
  
 arm64 
  
 - 
  
 amd64 
  
 - 
  
 key 
 : 
  
 kubernetes.io/os 
  
 operator 
 : 
  
 In 
  
 values 
 : 
  
 - 
  
 linux 
  
 containers 
 : 
  
 - 
  
 name 
 : 
  
 node-exporter 
  
 image 
 : 
  
 quay.io/prometheus/node-exporter:v1.8.2 
  
 args 
 : 
  
 - 
  
 --web.listen-address=:8080 
  
 - 
  
 --path.sysfs=/host/sys 
  
 - 
  
 --path.rootfs=/host/root 
  
 - 
  
 --no-collector.wifi 
  
 - 
  
 --no-collector.hwmon 
  
 - 
  
 --collector.filesystem.ignored-mount-points=^/(dev|proc|sys|var/lib/docker/.+|var/lib/kubelet/pods/.+)($|/) 
  
 - 
  
 --collector.netclass.ignored-devices=^(veth.*)$ 
  
 - 
  
 --collector.netdev.device-exclude=^(veth.*)$ 
  
 ports 
 : 
  
 - 
  
 name 
 : 
  
 metrics 
  
 containerPort 
 : 
  
 8080 
  
 resources 
 : 
  
 limits 
 : 
  
 memory 
 : 
  
 180Mi 
  
 requests 
 : 
  
 cpu 
 : 
  
 102m 
  
 memory 
 : 
  
 180Mi 
  
 volumeMounts 
 : 
  
 - 
  
 mountPath 
 : 
  
 /host/sys 
  
 mountPropagation 
 : 
  
 HostToContainer 
  
 name 
 : 
  
 sys 
  
 readOnly 
 : 
  
 true 
  
 - 
  
 mountPath 
 : 
  
 /host/root 
  
 mountPropagation 
 : 
  
 HostToContainer 
  
 name 
 : 
  
 root 
  
 readOnly 
 : 
  
 true 
  
 hostNetwork 
 : 
  
 true 
  
 hostPID 
 : 
  
 true 
  
 securityContext 
 : 
  
 runAsNonRoot 
 : 
  
 true 
  
 runAsUser 
 : 
  
 65534 
  
 volumes 
 : 
  
 - 
  
 hostPath 
 : 
  
 path 
 : 
  
 /sys 
  
 name 
 : 
  
 sys 
  
 - 
  
 hostPath 
 : 
  
 path 
 : 
  
 / 
  
 name 
 : 
  
 root 
 --- 
 apiVersion 
 : 
  
 monitoring.googleapis.com/v1 
 kind 
 : 
  
 PodMonitoring 
 metadata 
 : 
  
 namespace 
 : 
  
 gmp-public 
  
 name 
 : 
  
 node-exporter 
  
 labels 
 : 
  
 app.kubernetes.io/name 
 : 
  
 node-exporter 
  
 app.kubernetes.io/part-of 
 : 
  
 google-cloud-managed-prometheus 
 spec 
 : 
  
 selector 
 : 
  
 matchLabels 
 : 
  
 app.kubernetes.io/name 
 : 
  
 node-exporter 
  
 endpoints 
 : 
  
 - 
  
 port 
 : 
  
 metrics 
  
 interval 
 : 
  
 30s

To apply configuration changes from a local file, run the following command:

kubectl apply -f FILE_NAME

You can also use Terraform to manage your configurations.

Define rules and alerts

You can use the following Rules configuration to define alerts on your metrics:

  # Copyright 2022 Google LLC 
 # 
 # Licensed under the Apache License, Version 2.0 (the "License"); 
 # you may not use this file except in compliance with the License. 
 # You may obtain a copy of the License at 
 # 
 #     https://www.apache.org/licenses/LICENSE-2.0 
 # 
 # Unless required by applicable law or agreed to in writing, software 
 # distributed under the License is distributed on an "AS IS" BASIS, 
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 # See the License for the specific language governing permissions and 
 # limitations under the License. 
 apiVersion 
 : 
  
 monitoring.googleapis.com/v1 
 kind 
 : 
  
 Rules 
 metadata 
 : 
  
 namespace 
 : 
  
 gmp-public 
  
 name 
 : 
  
 node-exporter-rules 
  
 labels 
 : 
  
 app.kubernetes.io/component 
 : 
  
 rules 
  
 app.kubernetes.io/name 
 : 
  
 node-exporter-rules 
  
 app.kubernetes.io/part-of 
 : 
  
 google-cloud-managed-prometheus 
 spec 
 : 
  
 groups 
 : 
  
 - 
  
 name 
 : 
  
 node-exporter 
  
 interval 
 : 
  
 30s 
  
 rules 
 : 
  
 - 
  
 alert 
 : 
  
 NodeFilesystemSpaceFillingUp 
  
 annotations 
 : 
  
 description 
 : 
  
 Filesystem on {{ $labels.device }} at {{ $labels.instance }} 
  
 has only {{ printf "%.2f" $value }}% available space left and is filling 
  
 up. 
  
 runbook_url 
 : 
  
 https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemspacefillingup 
  
 summary 
 : 
  
 Filesystem is predicted to run out of space within the next 24 hours. 
  
 expr 
 : 
  
 | 
  
 ( 
  
 node_filesystem_avail_bytes{job="node-exporter",fstype!=""} / node_filesystem_size_bytes{job="node-exporter",fstype!=""} * 100 < 15 
  
 and 
  
 predict_linear(node_filesystem_avail_bytes{job="node-exporter",fstype!=""}[6h], 24 * 60 * 60) < 0 
  
 and 
  
 node_filesystem_readonly{job="node-exporter",fstype!=""} == 0 
  
 ) 
  
 for 
 : 
  
 1h 
  
 labels 
 : 
  
 severity 
 : 
  
 warning 
  
 - 
  
 alert 
 : 
  
 NodeFilesystemSpaceFillingUp 
  
 annotations 
 : 
  
 description 
 : 
  
 Filesystem on {{ $labels.device }} at {{ $labels.instance }} 
  
 has only {{ printf "%.2f" $value }}% available space left and is filling 
  
 up fast. 
  
 runbook_url 
 : 
  
 https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemspacefillingup 
  
 summary 
 : 
  
 Filesystem is predicted to run out of space within the next 4 hours. 
  
 expr 
 : 
  
 | 
  
 ( 
  
 node_filesystem_avail_bytes{job="node-exporter",fstype!=""} / node_filesystem_size_bytes{job="node-exporter",fstype!=""} * 100 < 10 
  
 and 
  
 predict_linear(node_filesystem_avail_bytes{job="node-exporter",fstype!=""}[6h], 4*60*60) < 0 
  
 and 
  
 node_filesystem_readonly{job="node-exporter",fstype!=""} == 0 
  
 ) 
  
 for 
 : 
  
 1h 
  
 labels 
 : 
  
 severity 
 : 
  
 critical 
  
 - 
  
 alert 
 : 
  
 NodeFilesystemAlmostOutOfSpace 
  
 annotations 
 : 
  
 description 
 : 
  
 Filesystem on {{ $labels.device }} at {{ $labels.instance }} 
  
 has only {{ printf "%.2f" $value }}% available space left. 
  
 runbook_url 
 : 
  
 https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemalmostoutofspace 
  
 summary 
 : 
  
 Filesystem has less than 5% space left. 
  
 expr 
 : 
  
 | 
  
 ( 
  
 node_filesystem_avail_bytes{job="node-exporter",fstype!=""} / node_filesystem_size_bytes{job="node-exporter",fstype!=""} * 100 < 5 
  
 and 
  
 node_filesystem_readonly{job="node-exporter",fstype!=""} == 0 
  
 ) 
  
 for 
 : 
  
 30m 
  
 labels 
 : 
  
 severity 
 : 
  
 warning 
  
 - 
  
 alert 
 : 
  
 NodeFilesystemAlmostOutOfSpace 
  
 annotations 
 : 
  
 description 
 : 
  
 Filesystem on {{ $labels.device }} at {{ $labels.instance }} 
  
 has only {{ printf "%.2f" $value }}% available space left. 
  
 runbook_url 
 : 
  
 https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemalmostoutofspace 
  
 summary 
 : 
  
 Filesystem has less than 3% space left. 
  
 expr 
 : 
  
 | 
  
 ( 
  
 node_filesystem_avail_bytes{job="node-exporter",fstype!=""} / node_filesystem_size_bytes{job="node-exporter",fstype!=""} * 100 < 3 
  
 and 
  
 node_filesystem_readonly{job="node-exporter",fstype!=""} == 0 
  
 ) 
  
 for 
 : 
  
 30m 
  
 labels 
 : 
  
 severity 
 : 
  
 critical 
  
 - 
  
 alert 
 : 
  
 NodeFilesystemFilesFillingUp 
  
 annotations 
 : 
  
 description 
 : 
  
 Filesystem on {{ $labels.device }} at {{ $labels.instance }} 
  
 has only {{ printf "%.2f" $value }}% available inodes left and is filling 
  
 up. 
  
 runbook_url 
 : 
  
 https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemfilesfillingup 
  
 summary 
 : 
  
 Filesystem is predicted to run out of inodes within the next 24 hours. 
  
 expr 
 : 
  
 | 
  
 ( 
  
 node_filesystem_files_free{job="node-exporter",fstype!=""} / node_filesystem_files{job="node-exporter",fstype!=""} * 100 < 40 
  
 and 
  
 predict_linear(node_filesystem_files_free{job="node-exporter",fstype!=""}[6h], 24*60*60) < 0 
  
 and 
  
 node_filesystem_readonly{job="node-exporter",fstype!=""} == 0 
  
 ) 
  
 for 
 : 
  
 1h 
  
 labels 
 : 
  
 severity 
 : 
  
 warning 
  
 - 
  
 alert 
 : 
  
 NodeFilesystemFilesFillingUp 
  
 annotations 
 : 
  
 description 
 : 
  
 Filesystem on {{ $labels.device }} at {{ $labels.instance }} 
  
 has only {{ printf "%.2f" $value }}% available inodes left and is filling 
  
 up fast. 
  
 runbook_url 
 : 
  
 https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemfilesfillingup 
  
 summary 
 : 
  
 Filesystem is predicted to run out of inodes within the next 4 hours. 
  
 expr 
 : 
  
 | 
  
 ( 
  
 node_filesystem_files_free{job="node-exporter",fstype!=""} / node_filesystem_files{job="node-exporter",fstype!=""} * 100 < 20 
  
 and 
  
 predict_linear(node_filesystem_files_free{job="node-exporter",fstype!=""}[6h], 4*60*60) < 0 
  
 and 
  
 node_filesystem_readonly{job="node-exporter",fstype!=""} == 0 
  
 ) 
  
 for 
 : 
  
 1h 
  
 labels 
 : 
  
 severity 
 : 
  
 critical 
  
 - 
  
 alert 
 : 
  
 NodeFilesystemAlmostOutOfFiles 
  
 annotations 
 : 
  
 description 
 : 
  
 Filesystem on {{ $labels.device }} at {{ $labels.instance }} 
  
 has only {{ printf "%.2f" $value }}% available inodes left. 
  
 runbook_url 
 : 
  
 https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemalmostoutoffiles 
  
 summary 
 : 
  
 Filesystem has less than 5% inodes left. 
  
 expr 
 : 
  
 | 
  
 ( 
  
 node_filesystem_files_free{job="node-exporter",fstype!=""} / node_filesystem_files{job="node-exporter",fstype!=""} * 100 < 5 
  
 and 
  
 node_filesystem_readonly{job="node-exporter",fstype!=""} == 0 
  
 ) 
  
 for 
 : 
  
 1h 
  
 labels 
 : 
  
 severity 
 : 
  
 warning 
  
 - 
  
 alert 
 : 
  
 NodeFilesystemAlmostOutOfFiles 
  
 annotations 
 : 
  
 description 
 : 
  
 Filesystem on {{ $labels.device }} at {{ $labels.instance }} 
  
 has only {{ printf "%.2f" $value }}% available inodes left. 
  
 runbook_url 
 : 
  
 https://runbooks.prometheus-operator.dev/runbooks/node/nodefilesystemalmostoutoffiles 
  
 summary 
 : 
  
 Filesystem has less than 3% inodes left. 
  
 expr 
 : 
  
 | 
  
 ( 
  
 node_filesystem_files_free{job="node-exporter",fstype!=""} / node_filesystem_files{job="node-exporter",fstype!=""} * 100 < 3 
  
 and 
  
 node_filesystem_readonly{job="node-exporter",fstype!=""} == 0 
  
 ) 
  
 for 
 : 
  
 1h 
  
 labels 
 : 
  
 severity 
 : 
  
 critical 
  
 - 
  
 alert 
 : 
  
 NodeNetworkReceiveErrs 
  
 annotations 
 : 
  
 description 
 : 
  
 '{{ $labels.instance }} 
  
 interface 
  
{{ $labels.device } } 
  
 has 
  
 encountered 
  
{{ printf "%.0f" $value } } 
  
 receive 
  
 errors 
  
 in 
  
 the 
  
 last 
  
 two 
  
 minutes.' 
  
 runbook_url 
 : 
  
 https://runbooks.prometheus-operator.dev/runbooks/node/nodenetworkreceiveerrs 
  
 summary 
 : 
  
 Network interface is reporting many receive errors. 
  
 expr 
 : 
  
 | 
  
 rate(node_network_receive_errs_total[2m]) / rate(node_network_receive_packets_total[2m]) > 0.01 
  
 for 
 : 
  
 1h 
  
 labels 
 : 
  
 severity 
 : 
  
 warning 
  
 - 
  
 alert 
 : 
  
 NodeNetworkTransmitErrs 
  
 annotations 
 : 
  
 description 
 : 
  
 '{{ $labels.instance }} 
  
 interface 
  
{{ $labels.device } } 
  
 has 
  
 encountered 
  
{{ printf "%.0f" $value } } 
  
 transmit 
  
 errors 
  
 in 
  
 the 
  
 last 
  
 two 
  
 minutes.' 
  
 runbook_url 
 : 
  
 https://runbooks.prometheus-operator.dev/runbooks/node/nodenetworktransmiterrs 
  
 summary 
 : 
  
 Network interface is reporting many transmit errors. 
  
 expr 
 : 
  
 | 
  
 rate(node_network_transmit_errs_total[2m]) / rate(node_network_transmit_packets_total[2m]) > 0.01 
  
 for 
 : 
  
 1h 
  
 labels 
 : 
  
 severity 
 : 
  
 warning 
  
 - 
  
 alert 
 : 
  
 NodeHighNumberConntrackEntriesUsed 
  
 annotations 
 : 
  
 description 
 : 
  
 '{{ $value | humanizePercentage }} 
  
 of 
  
 conntrack 
  
 entries 
  
 are 
  
 used.' 
  
 runbook_url 
 : 
  
 https://runbooks.prometheus-operator.dev/runbooks/node/nodehighnumberconntrackentriesused 
  
 summary 
 : 
  
 Number of conntrack are getting close to the limit. 
  
 expr 
 : 
  
 | 
  
 (node_nf_conntrack_entries / node_nf_conntrack_entries_limit) > 0.75 
  
 labels 
 : 
  
 severity 
 : 
  
 warning 
  
 - 
  
 alert 
 : 
  
 NodeTextFileCollectorScrapeError 
  
 annotations 
 : 
  
 description 
 : 
  
 Node Exporter text file collector failed to scrape. 
  
 runbook_url 
 : 
  
 https://runbooks.prometheus-operator.dev/runbooks/node/nodetextfilecollectorscrapeerror 
  
 summary 
 : 
  
 Node Exporter text file collector failed to scrape. 
  
 expr 
 : 
  
 | 
  
 node_textfile_scrape_error{job="node-exporter"} == 1 
  
 labels 
 : 
  
 severity 
 : 
  
 warning 
  
 - 
  
 alert 
 : 
  
 NodeClockSkewDetected 
  
 annotations 
 : 
  
 description 
 : 
  
 Clock on {{ $labels.instance }} is out of sync by more than 300s. 
  
 Ensure NTP is configured correctly on this host. 
  
 runbook_url 
 : 
  
 https://runbooks.prometheus-operator.dev/runbooks/node/nodeclockskewdetected 
  
 summary 
 : 
  
 Clock skew detected. 
  
 expr 
 : 
  
 | 
  
 ( 
  
 node_timex_offset_seconds{job="node-exporter"} > 0.05 
  
 and 
  
 deriv(node_timex_offset_seconds{job="node-exporter"}[5m]) >= 0 
  
 ) 
  
 or 
  
 ( 
  
 node_timex_offset_seconds{job="node-exporter"} < -0.05 
  
 and 
  
 deriv(node_timex_offset_seconds{job="node-exporter"}[5m]) <= 0 
  
 ) 
  
 for 
 : 
  
 10m 
  
 labels 
 : 
  
 severity 
 : 
  
 warning 
  
 - 
  
 alert 
 : 
  
 NodeClockNotSynchronising 
  
 annotations 
 : 
  
 description 
 : 
  
 Clock on {{ $labels.instance }} is not synchronising. Ensure 
  
 NTP is configured on this host. 
  
 runbook_url 
 : 
  
 https://runbooks.prometheus-operator.dev/runbooks/node/nodeclocknotsynchronising 
  
 summary 
 : 
  
 Clock not synchronising. 
  
 expr 
 : 
  
 | 
  
 min_over_time(node_timex_sync_status{job="node-exporter"}[5m]) == 0 
  
 and 
  
 node_timex_maxerror_seconds{job="node-exporter"} >= 16 
  
 for 
 : 
  
 10m 
  
 labels 
 : 
  
 severity 
 : 
  
 warning 
  
 - 
  
 alert 
 : 
  
 NodeRAIDDegraded 
  
 annotations 
 : 
  
 description 
 : 
  
 RAID array '{{ $labels.device }}' on {{ $labels.instance }} is 
  
 in degraded state due to one or more disks failures. Number of spare drives 
  
 is insufficient to fix issue automatically. 
  
 runbook_url 
 : 
  
 https://runbooks.prometheus-operator.dev/runbooks/node/noderaiddegraded 
  
 summary 
 : 
  
 RAID Array is degraded 
  
 expr 
 : 
  
 | 
  
 node_md_disks_required{job="node-exporter",device=~"(/dev/)?(mmcblk.p.+|nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+|dasd.+)"} - ignoring (state) (node_md_disks{state="active",job="node-exporter",device=~"(/dev/)?(mmcblk.p.+|nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+|dasd.+)"}) > 0 
  
 for 
 : 
  
 15m 
  
 labels 
 : 
  
 severity 
 : 
  
 critical 
  
 - 
  
 alert 
 : 
  
 NodeRAIDDiskFailure 
  
 annotations 
 : 
  
 description 
 : 
  
 At least one device in RAID array on {{ $labels.instance }} failed. 
  
 Array '{{ $labels.device }}' needs attention and possibly a disk swap. 
  
 runbook_url 
 : 
  
 https://runbooks.prometheus-operator.dev/runbooks/node/noderaiddiskfailure 
  
 summary 
 : 
  
 Failed device in RAID array 
  
 expr 
 : 
  
 | 
  
 node_md_disks{state="failed",job="node-exporter",device=~"(/dev/)?(mmcblk.p.+|nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+|dasd.+)"} > 0 
  
 labels 
 : 
  
 severity 
 : 
  
 warning 
  
 - 
  
 alert 
 : 
  
 NodeFileDescriptorLimit 
  
 annotations 
 : 
  
 description 
 : 
  
 File descriptors limit at {{ $labels.instance }} is currently 
  
 at {{ printf "%.2f" $value }}%. 
  
 runbook_url 
 : 
  
 https://runbooks.prometheus-operator.dev/runbooks/node/nodefiledescriptorlimit 
  
 summary 
 : 
  
 Kernel is predicted to exhaust file descriptors limit soon. 
  
 expr 
 : 
  
 | 
  
 ( 
  
 node_filefd_allocated{job="node-exporter"} * 100 / node_filefd_maximum{job="node-exporter"} > 70 
  
 ) 
  
 for 
 : 
  
 15m 
  
 labels 
 : 
  
 severity 
 : 
  
 warning 
  
 - 
  
 alert 
 : 
  
 NodeFileDescriptorLimit 
  
 annotations 
 : 
  
 description 
 : 
  
 File descriptors limit at {{ $labels.instance }} is currently 
  
 at {{ printf "%.2f" $value }}%. 
  
 runbook_url 
 : 
  
 https://runbooks.prometheus-operator.dev/runbooks/node/nodefiledescriptorlimit 
  
 summary 
 : 
  
 Kernel is predicted to exhaust file descriptors limit soon. 
  
 expr 
 : 
  
 | 
  
 ( 
  
 node_filefd_allocated{job="node-exporter"} * 100 / node_filefd_maximum{job="node-exporter"} > 90 
  
 ) 
  
 for 
 : 
  
 15m 
  
 labels 
 : 
  
 severity 
 : 
  
 critical 
  
 - 
  
 name 
 : 
  
 node-exporter.rules 
  
 interval 
 : 
  
 30s 
  
 rules 
 : 
  
 - 
  
 expr 
 : 
  
 | 
  
 count without (cpu, mode) ( 
  
 node_cpu_seconds_total{job="node-exporter",mode="idle"} 
  
 ) 
  
 record 
 : 
  
 instance:node_num_cpu:sum 
  
 - 
  
 expr 
 : 
  
 | 
  
 1 - avg without (cpu) ( 
  
 sum without (mode) (rate(node_cpu_seconds_total{job="node-exporter", mode=~"idle|iowait|steal"}[5m])) 
  
 ) 
  
 record 
 : 
  
 instance:node_cpu_utilisation:rate5m 
  
 - 
  
 expr 
 : 
  
 | 
  
 ( 
  
 node_load1{job="node-exporter"} 
  
 / 
  
 instance:node_num_cpu:sum{job="node-exporter"} 
  
 ) 
  
 record 
 : 
  
 instance:node_load1_per_cpu:ratio 
  
 - 
  
 expr 
 : 
  
 | 
  
 1 - ( 
  
 ( 
  
 node_memory_MemAvailable_bytes{job="node-exporter"} 
  
 or 
  
 ( 
  
 node_memory_Buffers_bytes{job="node-exporter"} 
  
 + 
  
 node_memory_Cached_bytes{job="node-exporter"} 
  
 + 
  
 node_memory_MemFree_bytes{job="node-exporter"} 
  
 + 
  
 node_memory_Slab_bytes{job="node-exporter"} 
  
 ) 
  
 ) 
  
 / 
  
 node_memory_MemTotal_bytes{job="node-exporter"} 
  
 ) 
  
 record 
 : 
  
 instance:node_memory_utilisation:ratio 
  
 - 
  
 expr 
 : 
  
 | 
  
 rate(node_vmstat_pgmajfault{job="node-exporter"}[5m]) 
  
 record 
 : 
  
 instance:node_vmstat_pgmajfault:rate5m 
  
 - 
  
 expr 
 : 
  
 | 
  
 rate(node_disk_io_time_seconds_total{job="node-exporter", device=~"(/dev/)?(mmcblk.p.+|nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+|dasd.+)"}[5m]) 
  
 record 
 : 
  
 instance_device:node_disk_io_time_seconds:rate5m 
  
 - 
  
 expr 
 : 
  
 | 
  
 rate(node_disk_io_time_weighted_seconds_total{job="node-exporter", device=~"(/dev/)?(mmcblk.p.+|nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+|dasd.+)"}[5m]) 
  
 record 
 : 
  
 instance_device:node_disk_io_time_weighted_seconds:rate5m 
  
 - 
  
 expr 
 : 
  
 | 
  
 sum without (device) ( 
  
 rate(node_network_receive_bytes_total{job="node-exporter", device!="lo"}[5m]) 
  
 ) 
  
 record 
 : 
  
 instance:node_network_receive_bytes_excluding_lo:rate5m 
  
 - 
  
 expr 
 : 
  
 | 
  
 sum without (device) ( 
  
 rate(node_network_transmit_bytes_total{job="node-exporter", device!="lo"}[5m]) 
  
 ) 
  
 record 
 : 
  
 instance:node_network_transmit_bytes_excluding_lo:rate5m 
  
 - 
  
 expr 
 : 
  
 | 
  
 sum without (device) ( 
  
 rate(node_network_receive_drop_total{job="node-exporter", device!="lo"}[5m]) 
  
 ) 
  
 record 
 : 
  
 instance:node_network_receive_drop_excluding_lo:rate5m 
  
 - 
  
 expr 
 : 
  
 | 
  
 sum without (device) ( 
  
 rate(node_network_transmit_drop_total{job="node-exporter", device!="lo"}[5m]) 
  
 ) 
  
 record 
 : 
  
 instance:node_network_transmit_drop_excluding_lo:rate5m

To apply configuration changes from a local file, run the following command:

kubectl apply -f FILE_NAME

You can also use Terraform to manage your configurations.

For more information about applying rules to your cluster, see Managed rule evaluation and alerting .

This Rules configuration was adapted from the rules and alerts contributed to the kube-prometheus repository.

Verify the configuration

You can use Metrics Explorer to verify that you correctly configured Node Exporter. It might take one or two minutes for Cloud Monitoring to ingest your metrics.

To verify the metrics are ingested, do the following:

In the Google Cloud console, go to the Metrics explorer page:

Go to Metrics explorer

If you use the search bar to find this page, then select the result whose subheading is Monitoring .
In the toolbar of the query-builder pane, select the button whose name is either MQL or PromQL .
Verify that PromQL is selected in the Language toggle. The language toggle is in the same toolbar that lets you format your query.

Enter and run the following query:

up{job="node-exporter", cluster=" CLUSTER_NAME 
", namespace="gmp-public"}

Install dashboards

Cloud Monitoring provides a library of sample dashboards for integrations. The sample library includes "Prometheus" dashboards, which you can install to view your data in the Google Cloud console.

Note that the Kubernetes Cluster Prometheus Overview dashboard requires Kube State Metrics to be installed. The Kubernetes Pod Prometheus Overview dashboard requires Kube State Metrics and Kubelet/cAdvisor to be installed.

To install a dashboard from the sample library, do the following:

In the Google Cloud console, go to the Dashboards page:

Go to Dashboards

If you use the search bar to find this page, then select the result whose subheading is Monitoring .
Select the Sample Library tab.
Choose the Other category.
(Optional) To view a static preview of a dashboard without installing it, click Preview .
Select the dashboards you want to install, then click Import .

For more information about installing dashboards, see Installing sample dashboards .

Troubleshooting

For information about troubleshooting metric ingestion problems, see Problems with collection from exporters in Troubleshooting ingestion-side problems .

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