prometheus/grafana自定義安裝

• 安裝prometheus。參考 https://github.com/prometheus-community/helm-charts/tree/main/charts/prometheus

# kubectl create ns monitoring
# helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
# helm repo update
# helm install prometheus -n monitoring prometheus-community/prometheus -f prometheus.yaml
# helm upgrade prometheus -n monitoring prometheus-community/prometheus -f prometheus.yaml
server:
  persistentVolume:
    size: 20Gi

• 通過kubectl port-forward --address 0.0.0.0 service/prometheus-server -n monitoring 8080:80臨時查看prometheus中的數據

• 通過註解來監控pod/service。參考 https://github.com/prometheus-community/helm-charts/tree/main/charts/prometheus#scraping-pod-metrics-via-annotations

metadata:
  annotations:
    prometheus.io/scrape: "true"
    prometheus.io/path: /metrics
    prometheus.io/port: "8080"

• 安裝grafana。參考 https://github.com/grafana/helm-charts/tree/main/charts/grafana

# helm repo add grafana https://grafana.github.io/helm-charts
# helm repo update
# helm install grafana -n monitoring grafana/grafana -f grafana.yaml
# helm upgrade grafana -n monitoring grafana/grafana -f grafana.yaml
# 通過k8s dashboard查看admin密碼

ingress:
  enabled: true
  annotations:
    traefik.ingress.kubernetes.io/router.tls: "true"
    traefik.ingress.kubernetes.io/router.entrypoints: websecure
    traefik.ingress.kubernetes.io/router.tls.certresolver: aliyun
    traefik.ingress.kubernetes.io/router.tls.domains.0.main: monitoring.your_domain.com
  hosts:
    - monitoring.your_domain.com

persistence:
  enabled: true
  size: 20Gi
  storageClassName: rook-cephfs

• 打開網站，添加prometheus源，爲service名稱

• 從 https://grafana.com/grafana/dashboards 找一個

  ID	說明
  1860	Node Exporter Full
  8919	中文版Node Exporter
  7636	Istio Service Dashboard
  12250	Traefik 2.2需安裝 grafana-cli plugins install grafana-piechart-panel
  7424	Kong (official)
  4701	JVM (Micrometer)
  9628	PostgreSQL Database
  2842	Ceph - Cluster
  5336	Ceph - OSD (Single)