k8s install Grafana

2024年2月5日 devops 0 Comments

一、Grafana 安装

1.1 Grafana yaml 文件

# cat grafana.yaml
apiVersion: v1
kind: PersistentVolume
metadata:
  name: grafana-local
  labels:
    app: grafana
spec:
  accessModes:
    - ReadWriteOnce
  capacity:
    storage: 2Gi
  storageClassName: local-storage
  local:
    path: /data/nfs/k8s/grafana
  nodeAffinity:
    required:
      nodeSelectorTerms:
        - matchExpressions:
            - key: kubernetes.io/hostname
              operator: In
              values:
                - node2
  persistentVolumeReclaimPolicy: Retain
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: grafana-pvc
  namespace: monitor
  labels:
    app: grafana
spec:
  selector:
    matchLabels:
      app: grafana
  storageClassName: local-storage
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 2Gi
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: grafana
  namespace: monitor
spec:
  selector:
    matchLabels:
      app: grafana
  template:
    metadata:
      labels:
        app: grafana
    spec:
      volumes:
        - name: storage
          persistentVolumeClaim:
            claimName: grafana-pvc
      securityContext:
        runAsUser: 0
      containers:
        - name: grafana
          image: grafana/grafana:10.0.1
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 3000
              name: grafana
          env:
            - name: GF_SECURITY_ADMIN_USER
              value: admin
            - name: GF_SECURITY_ADMIN_PASSWORD
              value: admin
          readinessProbe:
            failureThreshold: 10
            httpGet:
              path: /api/health
              port: 3000
              scheme: HTTP
            periodSeconds: 30
            successThreshold: 1
            timeoutSeconds: 30
          livenessProbe:
            failureThreshold: 3
            httpGet:
              path: /api/health
              port: 3000
              scheme: HTTP
            periodSeconds: 30
            successThreshold: 1
            timeoutSeconds: 1
          resources:
            limits:
              cpu: 150m
              memory: 512Mi
            requests:
              cpu: 150m
              memory: 512Mi
          volumeMounts:
            - mountPath: /var/lib/grafana
              name: storage
---
apiVersion: v1
kind: Service
metadata:
  name: grafana
  namespace: monitor
spec:
  type: NodePort
  ports:
    - port: 3000
  selector:
    app: grafana

1.2 创建

mkdir -p /data/nfs/k8s/grafana  # 在 node2 上创建目录
kubectl apply -f grafana.yaml

二、配置 Grafana

2.1 配置 prometheus 数据源

2.2 导入 Dashboard 模版

模版 ID：16098，k8s node_exporter 监控

官方模版地址

2.3 Dashboard 展示