7.3.3. 使用 Prometheus 数据源部署 Grafana

流程

1. 获取 Grafana ServiceAccount 的访问令牌：

   oc serviceaccounts get-token grafana-serviceaccount -n MY-PROJECT

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   复制要在下一步中使用的访问令牌。

2. 创建一个包含 Grafana Thanos Querier 配置的 数据源.yaml 文件。

   将访问令牌粘贴到 httpHeaderValue1 属性中，如下所示：

   apiVersion: 1
   
   datasources:
   - name: Prometheus
     type: prometheus
     url: https://thanos-querier.openshift-monitoring.svc.cluster.local:9091
     access: proxy
     basicAuth: false
     withCredentials: false
     isDefault: true
     jsonData:
       timeInterval: 5s
       tlsSkipVerify: true
       httpHeaderName1: "Authorization"
     secureJsonData:
       httpHeaderValue1: "Bearer ${GRAFANA-ACCESS-TOKEN}" 

   1

   
     editable: true

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   1

   GRAFANA-ACCESS-TOKEN ：Grafana ServiceAccount 的访问令牌值。

3. 从 datasource.yaml 文件创建一个名 为grafana-config 的 Config Map：

   oc create configmap grafana-config --from-file=datasource.yaml -n MY-PROJECT

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4. 创建包含 Deployment 和 Service 的 Grafana 应用程序。

   The grafana-config Config Map 被挂载为数据源配置的卷。

   apiVersion: apps/v1
   kind: Deployment
   metadata:
     name: grafana
     labels:
       app: strimzi
   spec:
     replicas: 1
     selector:
       matchLabels:
         name: grafana
     template:
       metadata:
         labels:
           name: grafana
       spec:
         serviceAccountName: grafana-serviceaccount
         containers:
         - name: grafana
           image: grafana/grafana:6.3.0
           ports:
           - name: grafana
             containerPort: 3000
             protocol: TCP
           volumeMounts:
           - name: grafana-data
             mountPath: /var/lib/grafana
           - name: grafana-logs
             mountPath: /var/log/grafana
           - name: grafana-config
             mountPath: /etc/grafana/provisioning/datasources/datasource.yaml
             readOnly: true
             subPath: datasource.yaml
           readinessProbe:
             httpGet:
               path: /api/health
               port: 3000
             initialDelaySeconds: 5
             periodSeconds: 10
           livenessProbe:
             httpGet:
               path: /api/health
               port: 3000
             initialDelaySeconds: 15
             periodSeconds: 20
         volumes:
         - name: grafana-data
           emptyDir: {}
         - name: grafana-logs
           emptyDir: {}
         - name: grafana-config
           configMap:
             name: grafana-config
   ---
   apiVersion: v1
   kind: Service
   metadata:
     name: grafana
     labels:
       app: strimzi
   spec:
     ports:
     - name: grafana
       port: 3000
       targetPort: 3000
       protocol: TCP
     selector:
       name: grafana
     type: ClusterIP

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5. 将 Grafana 应用程序部署到包含 Kafka 集群的项目中：

   oc apply -f GRAFANA-APPLICATION -n MY-PROJECT

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