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Prometheus and Grafana with Docker Compose

Run Prometheus, node_exporter and Grafana together and graph a host.

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  • Prometheus 2.25
  • node_exporter 1.1
  • Grafana 7.4
  • Docker Compose 1.28

Prometheus scrapes metrics over HTTP; Grafana draws them.

version: "3.8"
services:
  prometheus:
    image: prom/prometheus:v2.25.0
    volumes: ["./prometheus.yml:/etc/prometheus/prometheus.yml:ro"]
    ports: ["9090:9090"]
  node:
    image: prom/node-exporter:v1.1.0
    pid: host
    volumes: ["/:/host:ro,rslave"]
    command: ["--path.rootfs=/host"]
  grafana:
    image: grafana/grafana:7.4.2
    ports: ["3000:3000"]
    volumes: ["grafdata:/var/lib/grafana"]
volumes:
  grafdata:

prometheus.yml:

scrape_configs:
  - job_name: node
    static_configs:
      - targets: ["node:9100"]

Start with docker-compose up -d. In Grafana (login admin, then change the password) add Prometheus as a data source at http://prometheus:9090 and import community dashboard 1860 (Node Exporter Full). Keep ports private or put them behind a reverse proxy with authentication.