使用 Prometheus Operator 监控 ubuntu 个服务器

Question

我需要使用 Prometheus Operator 监控多个 ubuntu 服务器。这些服务器在我的 prometheus operator 运行所在的 kubernetes 集群之外。下面的清单用于监视其中一台具有 IP aaa.bbb.ccc.ddd 的服务器。如何添加多个 IP 作为要监控的端点？还是我需要为每个服务器创建一个 endpoint/service？

apiVersion: v1
kind: Service
metadata:
  name: external-server
  namespace: monitoring
  labels:
    k8s-app: external-server
spec:
  type: ExternalName
  externalName: aaa.bbb.ccc.ddd
  clusterIP: ""
  ports:
  - name: metrics
    port: 9100
    protocol: TCP
    targetPort: 9100

apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: external-server
  labels:
    k8s-app: external-server
spec:
  endpoints:
  - port: metrics
    interval: 30s
    honorLabels: true
    path: /metrics
  selector:
    matchLabels:
      k8s-app: external-server
  namespaceSelector:
    matchNames:
    - monitoring

apiVersion: v1
kind: Endpoints
metadata:
  name: external-server
  labels:
    k8s-app: external-server
subsets:
- addresses:
  - ip: aaa.bbb.ccc.ddd
  ports:
  - name: metrics
    port: 9100
    protocol: TCP

Answer 1

只需使用

apiVersion: v1
kind: Endpoints
metadata:
  name: external-server
subsets:
- addresses:
  - ip: aaa.bbb.ccc.ddd
  - ip: aaa.bbb.ccc.eee
  - ip: aaa.bbb.ccc.fff
  ports:
  - name: metrics
    port: 9100
    protocol: TCP

一个具有多个端点的新目标将添加到 Prometheus /targets。

Answer 2

这是对我有用的完整解决方案。请注意，我必须将 Service type 更改为 ClusterIP。

apiVersion: v1
kind: Service
metadata:
  name: external-server
  namespace: monitoring
  labels:
    k8s-app: external-server
spec:
  type: ClusterIP
  clusterIP: None
  ports:
  - name: metrics
    port: 9100
    protocol: TCP

apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: external-server
  labels:
    k8s-app: external-server
spec:
  endpoints:
  - port: metrics
    interval: 30s
    scheme: http
  selector:
    matchLabels:
      k8s-app: external-server
  namespaceSelector:
    matchNames:
    - monitoring

apiVersion: v1
kind: Endpoints
metadata:
  name: external-server
  labels:
    k8s-app: external-server
subsets:
- addresses:
  - ip: aaa.bbb.ccc.ddd
  - ip: aaa.bbb.ccc.eee
  ports:
  - name: metrics
    port: 9100
    protocol: TCP

部署后，这两个 IP 将显示为 external-server 下 Targets 下的端点。

使用 Prometheus Operator 监控 ubuntu 个服务器

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