Monitoring server menggunakan Prometheus dan Grafana

1. Download Prometheus dan Node Exporter

• Download Prometheus

cd && wget https://github.com/prometheus/prometheus/releases/download/v2.53.1/prometheus-2.53.1.linux-amd64.tar.gz

https://prometheus.io/download/

• Download Node Exporter

wget https://github.com/prometheus/node_exporter/releases/download/v1.8.2/node_exporter-1.8.2.linux-amd64.tar.gz

2. Unzip Prometheus and Node Exporter

tar xvf prometheus-2.53.1.linux-amd64.tar.gz

tar xvf node_exporter-1.8.2.linux-amd64.tar.gz

3. Jalankan Prometheus menggunakan systemd/background proses

• Create group and user prometheus

sudo groupadd --system prometheus

sudo useradd --system -s /sbin/nologin -g prometheus prometheus

• Pindahkan file prometheus

sudo mv prometheus promtool /usr/local/bin

sudo mv console_libraries/ consoles/ prometheus.yml /etc/prometheus/

• config prometheus

sudo mkdir /etc/prometheus

sudo mkdir /var/lib/prometheus

• config prometheus.yml

global:
  scrape_interval: 15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
  evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.

scrape_configs:
  - job_name: "prometheus"
    static_configs:
      - targets: ["localhost:9090"]
  - job_name: "node-exporter"
    static_configs:
      - targets: ["localhost:9100"]

• jalankan prometheus di systemd

sudo nano /etc/systemd/system/prometheus.service

[Unit]
Description=Prometheus
Wants=network-online.target
After=network-online.target

[Service]
User=prometheus
Group=prometheus
Type=simple
ExecStart=/usr/local/bin/prometheus \
--config.file /etc/prometheus/prometheus.yml \
--storage.tsdb.path /var/lib/prometheus/ \
--web.console.templates=/etc/prometheus/consoles \
--web.console.libraries=/etc/prometheus/console_libraries

[Install]

WantedBy=multi-user.target

• Check status prometheus service

sudo systemctl status prometheus

• Jalankan

sudo systemctl enable --now prometheus.service

• check port

sudo lsof -n -i | grep prometheus

4. Config Node Exporter

sudo mv node_exporter /usr/local/bin

• tambahkan systemd

sudo nano /etc/systemd/system/node-exporter.service

[Unit]
Description=Node Exporter

[Service]
Restart=always
User=prometheus
Type=simple
ExecStart=/usr/local/bin/node_exporter
ExecReload=/bin/kill -HUP $MAINPID
TimeoutStopSec=20s
SendSIGKILL=no

[Install]

WantedBy=multi-user.target

• check status

sudo systemctl status node-exporter.service

• Jalankan

sudo systemctl enable --now node-exporter.service

• Check port

sudo lsof -n -i | grep node

5. Install Grafana

doc link
https://grafana.com/docs/grafana/latest/setup-grafana/installation/debian/

• Menambahkan data source

Buka menu Connection>Data Sources lalu pilih Prometheus

• Menambahkan Graph Node Exporter

https://grafana.com/grafana/dashboards/1860-node-exporter-full/