Grafana展示Prometheus数据

Grafana 是 Graphite 和 InfluxDB 仪表盘和图形编辑器。
Grafana 是开源的，功能齐全的度量仪表盘和图形编辑器，支持 Graphite，InfluxDB 和 OpenTSDB。
Grafana 主要特性：灵活丰富的图形化选项；可以混合多种风格；支持白天和夜间模式；多个数据源；Graphite 和 InfluxDB 查询编辑器等。

部署Grafana

Prometheus采取到k8s集群的监控数据后，由于Prometheus自带的展示图形不太友好，故我们需要选择更加强大的图形展示工具。Prometheus的时区是UTC +0且不支持修改，而Grafana可以选择时区

Grafana官网：https://grafana.com/

[root@localhost Prometheus]# cat prometheus-grafana.yaml 
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: grafana
  namespace: kube-ops
spec:
  replicas: 1
  template:
    metadata:
      labels:
        k8s-app: grafana
        task: monitoring
    spec:
      containers:
      - name: grafana
        image: yfshare/heapster-grafana-amd64:v4.4.3
        ports:
        - containerPort: 3000
          hostPort: 3000
          protocol: TCP
        resources:
          limits:
            cpu: 200m
            memory: 256Mi
          requests:
            cpu: 100m
            memory: 100Mi
        volumeMounts:
        - name: ca-certificates
          mountPath: /etc/ssl/certs
          readOnly: true
        - name: grafana-data
          mountPath: /var
          subPath: grafana
        env:
        - name: INFLUXDB_HOST
          value: influxdb
        - name: INFLUXDB_SERVICE_URL
          value: http://influxdb.kube-ops.svc.cluster.local:8086
        - name: GF_SERVER_HTTP_PORT
          value: "3000"
        - name: GF_AUTH_BASIC_ENABLED
          value: "false"
        - name: GF_AUTH_ANONYMOUS_ENABLED
          value: "true"
        - name: GF_AUTH_ANONYMOUS_ORG_ROLE
          value: Admin
        - name: GF_SERVER_ROOT_URL
          # If you're only using the API Server proxy, set this value instead:
          # value: /api/v1/proxy/namespaces/kube-system/services/monitoring-grafana/
          value: /
      volumes:
      - name: ca-certificates
        hostPath:
          path: /etc/ssl/certs
      - name: grafana-data
        emptyDir: {}
---
apiVersion: v1
kind: Service
metadata:
  labels:
    kubernetes.io/cluster-service: 'true'
    kubernetes.io/name: grafana
  name: grafana
  namespace: kube-ops
spec:
  ports:
  - port: 3000
    targetPort: 3000
  selector:
    k8s-app: grafana
[root@localhost Prometheus]#

1	[root@localhost Prometheus]# kubectl apply -f prometheus-grafana.yaml

[root@localhost ~]# kubectl get pod -n kube-ops -o wide
NAME                          READY     STATUS    RESTARTS   AGE       IP            NODE
grafana-694786cf95-ph5pr      1/1       Running   0          1d        172.30.57.8   192.168.1.198
[root@localhost ~]#