آموزش نصب Prometheus و Grafana در اوبونتو و دبیان

ترمینال سرور مانیتورینگ.

(
set -euo pipefail
response=$(mktemp)
trap 'rm -f "$response"' EXIT
ok=0
for attempt in $(seq 1 12); do
  if code=$(curl -sS --connect-timeout 2 --max-time 5 -G \
    --data-urlencode 'query=up' -o "$response" -w '%{http_code}' \
    http://127.0.0.1:9090/api/v1/query); then
    if [ "$code" = 200 ] && jq -e '.status == "success" and .data.resultType == "vector" and any(.data.result[]; .metric.job == "prometheus" and .metric.instance == "127.0.0.1:9090" and .value[1] == "1") and any(.data.result[]; .metric.job == "node-exporter" and .metric.instance == "127.0.0.1:9100" and .value[1] == "1")' "$response" >/dev/null; then
      ok=1; break
    fi
  fi
  sleep 5
done
[ "$ok" = 1 ] || { cat "$response" >&2; echo 'Both local targets must have up=1' >&2; exit 1; }
jq . "$response"
)

ترمینال سرور مانیتورینگ.

(
set -euo pipefail
sudo systemctl daemon-reload
sudo install -d -m 0755 /etc/apt/keyrings
key=$(mktemp)
trap 'rm -f "$key"' EXIT
curl -fL --connect-timeout 10 --max-time 60 https://apt.grafana.com/gpg-full.key -o "$key"
gpg --show-keys "$key"
sudo install -m 0644 "$key" /etc/apt/keyrings/grafana.asc
printf '%s\n' 'deb [signed-by=/etc/apt/keyrings/grafana.asc] https://apt.grafana.com stable main' | sudo tee /etc/apt/sources.list.d/grafana.list >/dev/null
sudo apt-get update
sudo apt-get install -y grafana
dpkg-query -W -f='${Version}\n' grafana
)

محتوای فایل؛ در فایل نام‌برده ذخیره کنید، نه در خط فرمان.

apiVersion: 1

datasources:
  - name: Prometheus
    uid: prometheus-local
    type: prometheus
    access: proxy
    url: http://127.0.0.1:9090
    isDefault: true
    editable: true

ترمینال سرور مانیتورینگ.

(
set -euo pipefail
sudo chown root:grafana /etc/grafana/provisioning/datasources/prometheus.yaml
sudo chmod 0640 /etc/grafana/provisioning/datasources/prometheus.yaml
sudo systemctl daemon-reload
sudo systemctl enable grafana-server
sudo systemctl restart grafana-server
systemctl is-active grafana-server
ok=0
for attempt in $(seq 1 12); do
  if code=$(curl -sS --connect-timeout 2 --max-time 5 -o /dev/null -w '%{http_code}' http://127.0.0.1:3000/api/health); then
    if [ "$code" = 200 ]; then ok=1; break; fi
  fi
  sleep 2
done
[ "$ok" = 1 ] || { echo 'Endpoint did not become ready: http://127.0.0.1:3000/api/health' >&2; exit 1; }
printf '%s -> 200\n' 'http://127.0.0.1:3000/api/health'
curl -fsS --connect-timeout 2 --max-time 5 http://127.0.0.1:3000/api/health | jq -e '.database == "ok"'
sudo ss -lntp 'sport = :3000'
)

ترمینال رایانهٔ خودتان، نه سرور مانیتورینگ؛ YOUR_SSH_USER و MONITORING_SERVER را پیش از اجرا جایگزین کنید.

ssh -N -o ExitOnForwardFailure=yes -L 127.0.0.1:13000:127.0.0.1:3000 YOUR_SSH_USER@MONITORING_SERVER

ویرایشگر پنل داشبورد Grafana در مرورگر.

100 - (avg by(instance) (rate(node_cpu_seconds_total{mode="idle"}[5m])) * 100)

100 * (1 - (node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes))

node_filesystem_avail_bytes{fstype!~"tmpfs|overlay"}