Kubernetes 使用普罗米修斯吊舱监控golang webapp吊舱

我有一个golang webapp吊舱在kubernetes集群中运行，我试图部署一个prometheus吊舱来监控golang webapp吊舱

我在service.yaml文件中指定了

prometheus.io/port:to 2112

，这是golang webapp正在侦听的端口，但当我转到prometheus仪表板时，它显示

2112

端点已关闭

我正在跟踪，尝试了这个线程的解决方案，但仍然得到结果说

2112

端点已关闭

下面是my service.yaml和deployment.yaml

apiVersion: v1
kind: Service
metadata:
  name: prometheus-service
  namespace: monitoring
  annotations:
      prometheus.io/scrape: 'true'
      prometheus.io/path: '/metrics'
      prometheus.io/port:   '2112'
spec:
  selector: 
    app: prometheus-server
  type: NodePort  
  ports:
    - port: 8080
      targetPort: 9090 
      nodePort: 30000
---
apiVersion: v1
kind: Service
metadata: 
  namespace: monitoring
  name: goapp
spec:
  type: NodePort
  selector:
    app: golang
  ports:
    - name: main
      protocol: TCP
      port: 80
      targetPort: 2112
      nodePort: 30001






apiVersion: apps/v1
kind: Deployment
metadata:
  name: prometheus-deployment
  namespace: monitoring
  labels:
    app: prometheus-server
spec:
  replicas: 1
  selector:
    matchLabels:
      app: prometheus-server
  template:
    metadata:
      labels:
        app: prometheus-server
    spec:
      containers:
        - name: prometheus
          image: prom/prometheus
          args:
            - "--config.file=/etc/prometheus/prometheus.yml"
            - "--storage.tsdb.path=/prometheus/"
          ports:
            - containerPort: 9090
          volumeMounts:
            - name: prometheus-config-volume
              mountPath: /etc/prometheus/
            - name: prometheus-storage-volume
              mountPath: /prometheus/
      volumes:
        - name: prometheus-config-volume
          configMap:
            defaultMode: 420
            name: prometheus-server-conf
  
        - name: prometheus-storage-volume
          emptyDir: {}
---
apiVersion: apps/v1
kind: Deployment
metadata:
  namespace: monitoring
  name: golang
spec:
  replicas: 1
  template:
    metadata:
      labels:
        app: golang
    spec:
      containers:
        - name: gogo
          image: effy77/gogo2
          ports: 
            - containerPort: 2112
  selector:
    matchLabels:
      app: golang

---

我将尝试向prometheus部署部分添加

prometheus.io/port:2112

，因为我怀疑这可能是原因。

我对注释的放置位置感到困惑，因此得到了澄清，我需要将其放在服务的元数据下，需要prothemeus对其进行清理。所以在我的例子中，它需要在goapp的元数据中

apiVersion: v1
kind: Service
metadata: 
  namespace: monitoring
  name: goapp
  annotations:
      prometheus.io/scrape: 'true'
      prometheus.io/path: '/metrics'
      prometheus.io/port:   '2112'

---

你确定你的goapp像普罗米修斯期望的那样公开了它的指标吗？当您在

：2112/metrics

处查询应用程序时会发生什么情况？@YaronIdan当我在/metrics处查询golang应用程序时，它会显示度量。我想我不知道应该把注释放在哪里，它看起来需要放在golang应用程序部分，我试图把它放在golang应用程序的元数据下，但pod似乎没有出现在Prometheus仪表板中。