مانیتورینگ سرورها با Prometheus و Node Exporter

sudo apt update
sudo apt install -y prometheus-node-exporter
sudo ufw allow from 192.168.10.5 to any port 9100 proto tcp

sudo apt install -y prometheus
sudo nano /etc/prometheus/prometheus.yml

scrape_configs:
  - job_name: prometheus
    static_configs:
      - targets: ['localhost:9090']

  - job_name: servers
    static_configs:
      - targets:
          - 192.168.10.10:9100
          - 192.168.10.20:9100
          - 192.168.10.53:9100

rule_files:
  - /etc/prometheus/rules/*.yml

sudo mkdir -p /etc/prometheus/rules
sudo nano /etc/prometheus/rules/disk.yml

groups:
  - name: disk
    rules:
      - alert: DiskAlmostFull
        expr: (node_filesystem_avail_bytes{fstype!~"tmpfs|overlay"} / node_filesystem_size_bytes) < 0.10
        for: 10m
        labels:
          severity: warning
        annotations:
          summary: "کمتر از ۱۰٪ فضای خالی روی {{ $labels.instance }} {{ $labels.mountpoint }}"

promtool check config /etc/prometheus/prometheus.yml
sudo systemctl restart prometheus