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如何为prometheus操作员创建ServiceMonitor?

kubernetes-helm coreos kubernetes

2

andig · 技术社区 · 8 年前

最近,普罗米修斯算子被提升为稳定舵图( https://github.com/helm/charts/tree/master/stable/prometheus-operator ).

我想了解如何在k8s集群中为prometheus操作员的监控添加自定义应用程序。举个例子,比如gitlab runner,它默认提供9252上的度量( https://docs.gitlab.com/runner/monitoring/#configuration-of-the-metrics-http-server ).

我有一个初步的yaml,显然不起作用,但也没有提供任何反馈什么不起作用:

apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: gitlab-monitor
  # Change this to the namespace the Prometheus instance is running in
  namespace: default
  labels:
    app: gitlab-runner-gitlab-runner
    release: prometheus
spec:
  selector:
    matchLabels:
      app: gitlab-runner-gitlab-runner
  namespaceSelector:
    # matchNames:
    # - default
    any: true
  endpoints:
  - port: http-metrics
    interval: 15s

这是普罗米修斯的配置:

> kubectl get prometheus -o yaml

...
serviceMonitorNamespaceSelector: {}
serviceMonitorSelector:
  matchLabels:
    release: prometheus
...

所以选择器应该匹配。“不工作”的意思是端点不会出现在prometheusui中。

1 回复 | 直到 8 年前

1

29

andig 8 年前

多亏了彼得,他让我知道这个想法在原则上并不是完全错误的,我找到了缺失的环节。作为一个 servicemonitor

# Service targeting gitlab instances
apiVersion: v1
kind: Service
metadata:
  name: gitlab-metrics
  labels:
    app: gitlab-runner-gitlab-runner
spec:
  ports:
  - name: metrics # expose metrics port
    port: 9252 # defined in gitlab chart
    targetPort: metrics
    protocol: TCP
  selector:
    app: gitlab-runner-gitlab-runner # target gitlab pods
---
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: gitlab-metrics-servicemonitor
  # Change this to the namespace the Prometheus instance is running in
  # namespace: default
  labels:
    app: gitlab-runner-gitlab-runner
    release: prometheus
spec:
  selector:
    matchLabels:
      app: gitlab-runner-gitlab-runner # target gitlab service
  endpoints:
  - port: metrics
    interval: 15s

很高兴知道:是的 metrics targetPort

2

20

vrs 7 年前

我知道这个问题已经回答了。但当普罗米修斯部署在库伯内特斯时,我遇到了一个类似的问题,赫尔姆的稳定/普罗米修斯操作图无法为我的目标找到任何活动目标 ServiceMonitor

  - protocol: TCP
    port: 8080
    targetPort: uwsgi

我可以用它来攻击目标 uwsgi 港口。但看起来中需要显式命名的端口 Service

  - name: uwsgi
    protocol: TCP
    port: 8080
    targetPort: uwsgi

我写了一篇关于这个问题的博文 here