如何标记Prometheus blackbox_exporter端点

Question

我有一个带有Prometheus的k8s集群和一个web应用程序的一些豆荚。我想收集这些网络应用的度量标准。为此，我使用了出口商。

我配置了由prometheus操作符运行的服务监视器、部署和工作。普罗米修斯收集指标，但我无法区分它们。例如,

probe_success{endpoint="http-metrics",instance="10.20.0.105:9115",job="prometheus-blackbox-exporter",namespace="staging",pod="prometheus-blackbox-exporter-66fb58ff97-pd6lk",service="prometheus-blackbox-exporter"}

我应该如何为每个端点添加额外的标签？

如何将目标这样的标签添加到probe_success度量中？

​

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  blackbox.yaml: |
    modules:
      http_2xx:
        prober: http
        http:
          preferred_ip_protocol: "ipv4"
          tls_config:
            ca_file: "/config/my.pem"
      http_post_4xx:
        prober: http
        http:
          method: POST
          valid_status_codes: [400,404,401,403]
          headers:
            Content-Type: application/json
          body: '{"nonsense"}'
          preferred_ip_protocol: "ipv4"
          tls_config:
            ca_file: "/config/my.pem"

服务是

---
kind: Service
apiVersion: v1
metadata:
  name: prometheus-blackbox-exporter
  labels:
    app.kubernetes.io/name: prometheus-blackbox-exporter
    name: prometheus-blackbox-exporter
    monitoring: "true"
spec:
  type: ClusterIP
  ports:
    - name: http-metrics
      port: 9115
      protocol: TCP
  selector:
    app.kubernetes.io/name: prometheus-blackbox-exporter

---
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: prometheus-blackbox-exporter
  labels: {}
spec:
  selector:
    matchLabels:
      name: prometheus-blackbox-exporter
  endpoints:
    - port: http-metrics
      metricRelabelings:
        - sourceLabels: [__address__]
          targetLabel: __param_target
        - sourceLabels: [__param_target]
          targetLabel: instance
        - sourceLabels: [__address__]
          replacement: prometheus-blackbox-exporter:9115
      path: /probe
      params:
        target:
          - "web:3000"
        module:
          - "http_2xx"

    - port: http-metrics
      metricRelabelings:
        - sourceLabels: [__address__]
          targetLabel: __param_target
        - sourceLabels: [__param_target]
          targetLabel: instance
        - sourceLabels: [__address__]
          replacement: prometheus-blackbox-exporter:9115
      path: /probe
      params:
        target:
          - "api:8080/api/v1/login"
        module:
          - "http_post_4xx"

Answer 1

弄明白了：

port: snmp-exporter
    params:
      module:
      - if_mib # Select which SNMP module to use
      target:
      - 192.168.0.0
    path: "/snmp"
    targetPort: 9116
    honorLabels: true
    relabelings:
            #- action: labelmap
      - sourceLabels: [__param_target]
        #regex: '.*'
        #action: replace
        targetLabel: instance

Answer 2

更简单的是，只需向端点添加自定义标签即可。与上面的示例一样，将relabelings添加到servicemonitor定义中。

apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: prometheus-blackbox-exporter
  labels: {}
spec:
  selector:
    matchLabels:
      name: prometheus-blackbox-exporter
  endpoints:
    - port: http-metrics
      path: /probe
      params:
        target:
          - "web:3000"
        module:
          - "http_2xx"
      relabelings:
        - targetLabel: foo
          replacement: bar

这将将标签foo=bar添加到端点。

Answer 3

这个问题已经过时了，但我认为可能有人想这么做。

另一个建议-参考你的目标文件。

    - port: http-metrics
  metricRelabelings:
    - sourceLabels: [__address__]
      targetLabel: __param_target
    - sourceLabels: [__param_target]
      targetLabel: instance
    - sourceLabels: [__address__]
      replacement: prometheus-blackbox-exporter:9115
  path: /probe
  params:
    file_sd_configs:
      - files:
        - blackbox/targets_http.yml
    module:
      - "http_2xx"

然后引用的文本文件看起来如下所示：

- targets:
  - https://www.google.com
  - https://www.apple.com
  labels:
    job: blackbox_http
    type: external

- targets:
  - https://www.mysite1.com
  - https://www.mysite2.com
  labels:
    job: blackbox_http
    type: internal