已添加kubernetes ServiceMonitor，但未发现目标(0/0向上)

Question

我正在尝试公开prometheus的kubernetes应用程序的一些自定义指标。

我成功地在kubernetes部署了我的应用程序。还添加了ServiceMonitor，但未发现任何目标(0/0向上)。应用程序是一个带有相关nginx-prometheus-exporter sidecar的nginx服务器。

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-example-v3
  labels:
    app: nginx-example-v3
spec:
  selector:
    matchLabels:
      app: nginx-example-v3
  template:
    metadata:
      labels:
        app: nginx-example-v3
    spec:
      containers:
      - name: nginx
        image: nginx
        resources:
          limits:
            memory: "128Mi"
            cpu: "100m"
        ports:
        - name: http
          containerPort: 8080
        volumeMounts:
        - name: "config"
          mountPath: "/etc/nginx/nginx.conf"
          subPath: "nginx.conf"
      - name: exporter
        image: nginx/nginx-prometheus-exporter:0.8.0
        ports:
        - containerPort: 9113
      volumes:
        - name: "config"
          configMap:
            name: "nginx-example-v2-config"
            
---
apiVersion: v1
kind: Service
metadata:
  labels:
    name: nginx-example-v3
  name: nginx-example-v3
spec:
  type: LoadBalancer
  selector:
    app: nginx-example-v3
  ports:
  - name: http
    port: 8080
    targetPort: 8080
  - name: http-exporter
    port: 9113
    targetPort: 9113

之后，我可以看到在/metrics接口中公开的nginx自定义指标：

​

然后我应用监控服务：

apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: nginx-example-v3
spec:
  endpoints:
  - bearerTokenFile: /var/run/secrets/kubernetes.io/serviceaccount/token
    interval: 15s
    port: web
  selector:
    matchLabels:
      app: nginx-example-v3

我可以看到在prometheus的"Service Discovery“部分成功添加了服务：

​

但没有发现代表普罗米修斯的目标(0/0以上)

​

我错过了什么？自从我被困了这么多天，任何帮助都是非常感谢的！非常提前感谢您。:-)

回复@efotopoulou

Answer 1

我稍微更改了服务清单，现在可以获得指标了。很抱歉有这么新的讨论。我希望我的清单能帮助其他人配置他们的服务。这是更新后的清单。:-)

apiVersion: v1
kind: Service
metadata:
  labels:
    app: nginx-example-v3
  name: nginx-example-v3
spec:
  type: LoadBalancer
  selector:
    app: nginx-example-v3
  ports:
  - name: http
    port: 8080
    targetPort: 8080
  - name: web
    port: 9113
    targetPort: 9113