Node Exporter

Overview

This installation happens on the dsb-node-01.

According to Prometheus' Website, Node Exporter is an essential tool for monitoring the hardware and OS-level metrics of your Linux systems. It is part of the Prometheus ecosystem and is widely used to gather metrics such as CPU usage, memory usage, disk I/O, and more.

Installation Steps

1. Create Necessary Directories

First, navigate to your apps directory and create a new directory for Node Exporter:

cd ~/apps
mkdir node-exporter

1. Create Docker Compose File

Navigate to the node-exporter directory and create a docker-compose.yml file:

cd ~/apps/node-exporter
touch docker-compose.yml

1. Configure Docker Compose File

Edit the docker-compose.yml file and add the following configuration:

version: '3.8'

services:
  node-exporter:
    image: quay.io/prometheus/node-exporter:latest
    container_name: node-exporter
    restart: unless-stopped
    network_mode: "host"
    pid: "host"
    volumes:
      - /proc:/host/proc:ro
      - /sys:/host/sys:ro
      - /:/rootfs:ro
    command:
      - '--path.procfs=/host/proc'
      - '--path.sysfs=/host/sys'
      - '--collector.filesystem.ignored-mount-points="^/(sys|proc|dev|host|etc)($$|/)"'
    network_mode: host

1. Deploy Node Exporter

Finally, use Docker Compose to deploy Node Exporter:

docker-compose up -d

You're Done