Prometheus Node exporter

Prometheus Node exporter

MERGE: Prometheus-node-exporter

• Homepage: https://github.com/prometheus/node_exporter

Installing Node Exporter

• Linux: apt install prometheus-node-exporter
• macOS: brew install node_exporter

Review exposed information: http://localhost:9100/metrics

Installing Node Exporter from Docker Hub

It's not recommended to deploy it as a Docker container

• docker pull prom/node-exporter && docker run prom/node-exporter

Configuring Prometheus to Scrape Node Exporter

Because Prometheus only scrapes exporters which are defined in the scrape_configs portion of its configuration file, we'll need to add an entry for Node Exporter, just like we did for Prometheus itself.

At the end of the scrape_configs block, add a new entry called node_exporter.

sudo nano /etc/prometheus/prometheus.yml

global:
  scrape_interval: 15s

scrape_configs:
  - job_name: 'prometheus'
    scrape_interval: 5s
    static_configs:
      - targets: ['localhost:9090']
  - job_name: 'node_exporter'
    scrape_interval: 5s
    static_configs:
      - targets: ['localhost:9100']

Finally, restart Prometheus to put the changes into effect and verify status

docker restart prometheus

Related terms

• Metric colletion tools: Metricbeat, sysstat

See also

• Prometheus: Prometheus installation, 9090, storage, Prometheus exporters: Node exporter 9100, Blackbox exporter, Prometheus alertmanager (changelog), Prometheus versions, Prometheus Node exporter releases, promtool, amtool, tsdb, /etc/default/prometheus, /etc/prometheus/prometheus.yml, journalctl -u prometheus, /etc/default/prometheus-node-exporter, PromQL, alert:, Prometheus Operator, Thanos, VictoriaMetrics, PushGateway, Prometheus API, values.yml, Amazon Managed Service for Prometheus

https://github.com/prometheus/node_exporter#using-docker