Claire's Blog

參考官方文件的教學如下:
https://prometheus.io/docs/prometheus/latest/configuration/configuration/

Prometheus can reload its configuration at runtime. If the new configuration is not well-formed, the changes will not be applied. A configuration reload is triggered by sending a SIGHUP to the Prometheus process or sending a HTTP POST request to the /-/reload endpoint (when the –web.enable-lifecycle flag is enabled). This will also reload any configured rule files.

而實際的應用方式則是:

• 第一種，向prometheus進行發信號
  kill -HUP pid
• 第二種，向prometheus發送HTTP請求
  curl -XPOST http://127.0.0.1:9090/-/reload
  但是會需要先設定--web.enable-lifecycle參數

   template:
      metadata:
        labels:
          ...
          prometheus: rancher-monitoring-prometheus
      spec:
        containers:
        - args:
          - --web.enable-lifecycle
          image: rancher/mirrored-prometheus-prometheus:v2.27.1
          imagePullPolicy: IfNotPresent
          name: prometheus
          ....