آماده کردن سرور Debian برای مانیتورینگ Prometheus

sudo apt update
sudo apt install -y prometheus-node-exporter
systemctl status prometheus-node-exporter --no-pager
curl -s http://127.0.0.1:9100/metrics | head

ARGS="--collector.systemd --collector.processes --web.listen-address=:9100"

sudo systemctl restart prometheus-node-exporter

ip saddr 192.168.10.5 tcp dport 9100 accept

echo "backup_last_success_timestamp $(date +%s)" | sudo tee /var/lib/prometheus/node-exporter/backup.prom

- alert: BackupTooOld
  expr: time() - backup_last_success_timestamp > 26 * 3600
  for: 10m

- alert: SystemdUnitFailed
  expr: node_systemd_unit_state{state="failed"} == 1
  for: 5m