1. 添加Configuration配置

编辑prometheus-additional.yaml

- job_name: kubernetes-service-endpoints
  kubernetes_sd_configs:
  - role: endpoints
  relabel_configs:
  - action: keep
    regex: true
    source_labels:
    - __meta_kubernetes_service_annotation_prometheus_io_scrape
  - action: replace
    regex: (https?)
    source_labels:
    - _kubernetes_service_annotation_prometheus_io_scheme
    target_label: __scheme__
  - action: replace
    regex: (.+)
    source_labels:
    - __meta_kubernetes_service_annotation_prometheus_io_path
    target_label: __metrics_path__
  - action: replace
    regex: ([^:]+)(?::\d+)?;(\d+)
    replacement: $1:$2
    source_labels:
    - __address__
    - __meta_kubernetes_service_annotation_prometheus_io_port
    target_label: __address__
  - action: labelmap
    regex: __meta_kubernetes_service_label_(.+)
  - action: replace
    source_labels:
    - __meta_kubernetes_namespace
    target_label: namespace
  - action: replace
    source_labels:
    - __meta_kubernetes_service_name
    target_label: service_name
  - source_labels: [__meta_kubernetes_pod_name]
    separator: ;
    regex: (.*)
    target_label: pod
    replacement: $1
    action: replace

2. 创建配置文件

kubectl create secret generic additional-scrape-configs --from-file=prometheus-additional.yaml

3. 添加配置文件到prometheus operator的cr中

kubectl edit prometheus k8s

additionalScrapeConfigs:
  key: prometheus-additional.yaml
  name: additional-configs

4. prometheus热更新应用配置

curl -XPOST  ${prometheus-k8s-0}:9090/-/reload

5. service的配置

apiVersion: v1
kind: Service
metadata:
  name: kube-dns
  namespace: kube-system
  annotations:
    prometheus.io/port: "9153"
    prometheus.io/scrape: "true"