promtheus 适配器无法捕获我的自定义指标

Question

我尝试使用 prometheus 适配器在 kubernetes 中获取指标。这是我的指标

rabbitmq_queue_messages{cluster="my-rabbitmq", container="rabbitmq-exporter", durable="false", endpoint="metrics", instance="10.244.0.23:9419", job="default/rabbitmq-exporter", namespace="default", pod="rabbitmq-exporter-deployment-5684699d6c-9rwgg", queue="my_queue", self="1", vhost="/"}

这是我的普罗米修斯适配器的配置（它已保存在配置映射中）

    "rules":
      - "seriesQuery": "rabbitmq_queue_messages"
        "resources":
          "overrides":
            "kubernetes_namespace":
              "resource": "namespace"
            "kubernetes_pod_name": 
              "resource": "pod"
        "name":
          "matches": "rabbitmq_queue_messages"
          "as": "rabbitmq_queue_messages"
        "metricsQuery": "rabbitmq_queue_messages"

它不起作用我也尝试了这个没有metricsQuery和名称的配置，但它不起作用，我在这里错过了什么吗？

Answer 1

事实证明，我需要一个集群角色来允许我生成自定义指标。我创建了这个集群角色

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  labels:
    app.kubernetes.io/component: metrics-adapter
    app.kubernetes.io/name: prometheus-adapter
    app.kubernetes.io/part-of: kube-prometheus
    app.kubernetes.io/version: 0.11.2
  name: prometheus-adapter
rules:
- apiGroups:
  - ""
  resources:
  - nodes
  - namespaces
  - pods
  - services
  verbs:
  - get
  - list
  - watch
- apiGroups:
  - custom.metrics.k8s.io
  resources:
  - '*'
  verbs:
  - '*'