Monitoring Systems using Grafana, InfulxDB and Prometheus

• Monitoring Proxmox system the easy way
• Prometheus Node Exporter on RaspberryPi 4

Monitoring Proxmox system the easy way

We are going to be using docker and docker compose to complete this setup to work in monitoring your systems.

Here is the compose file you will need:

services:
  prometheus:
    image: prom/prometheus
    container_name: prometheus
    command:
      - '--config.file=/etc/prometheus/prometheus.yml'
    ports:
      - 9090:9090
    restart: unless-stopped
    extra_hosts:
      - "dockersrv002:host-gateway"
    volumes:
      - ./prometheus:/etc/prometheus
      - prom_data:/prometheus
  grafana:
    image: grafana/grafana
    container_name: grafana
    ports:
      - 3000:3000
    restart: unless-stopped
    volumes:
      - ./grafana:/etc/grafana/provisioning/datasources
      - grafana_data:/var/lib/grafana
  influxdb:
    image: influxdb:2.7.6-alpine
    container_name: influxdb2
    ports:
      - 8086:8086
    extra_hosts:
      - "dockersrv002:host-gateway"
    volumes:
      - influxdb2_data:/var/lib/influxdb2
      - ./influxdb2/config:/etc/influxdb2
      - ./influxdb2/scripts:/docker-entrypoint-initdb.d
volumes:
  prom_data:
  grafana_data:
  influxdb2_data:

Grafana Configuration files

datasource.yml

apiVersion: 1

datasources:
- name: Prometheus
  type: prometheus
  url: http://prometheus:9090
  isDefault: true
  access: proxy
  editable: true

Prometheus Configuration files

global:
  scrape_interval: 15s
  scrape_timeout: 10s
  evaluation_interval: 15s
alerting:
  alertmanagers:
  - static_configs:
    - targets: []
    scheme: http
    timeout: 10s
    api_version: v1
scrape_configs:
- job_name: prometheus
  honor_timestamps: true
  scrape_interval: 15s
  scrape_timeout: 10s
  metrics_path: /metrics
  scheme: http
  static_configs:
  - targets:
    - localhost:9090
- job_name: node_exporter
  static_configs:
    - targets:
      #- dockersrv002:9100
      #- 192.168.10.171:9100
      #- 192.168.30.99:9100

Prometheus Node Exporter on RaspberryPi 4

Install the node exporter software

Get the latest version from the github prometheus project

https://github.com/prometheus/node_exporter/releases

Select the version you need arm6 for raspberrypi 3 or arm7 for Raspberrypi 4

Next you will download the qzip file and extract it, copy to the user path then create a service file to start and run the service

tar -xvf node_exporter-1.8.2.linux-armv7.tar.gz
cd  node_exporter-1.8.2.linux-armv7/
sudo cp node_exporter /usr/local/bin
sudo vi /etc/systemd/system/node_exporter.service

You will next past the following into the service file. 

[Unit]
Description=Node Exporter

[Service]
# Provide a text file location for https://github.com/fahlke/raspberrypi_exporter data with the
# --collector.textfile.directory parameter.
ExecStart=/usr/local/bin/node_exporter

[Install]
WantedBy=multi-user.target

Next need to reload daemon and, enable service, start service and check status

sudo systemctl daemon-reload
sudo systemctl enable node_exporter.service
sudo systemctl start node_exporter.service
sudo systemctl status node_exporter.service