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prometheus-config-reloader

  • prometheus-config-reloader
    • 强求 reload 接口 - 作为 sidecar 部署
    • fsnotify
    • quay.io/prometheus-operator/prometheus-config-reloader

| flag | | --------------------------------- | ------------------------------ | | --config-file file | 被监听文件 | | --config-envsubst-file file | 替换 config-file 里的环境变量 | | --watched-dir dir | 被监听目录 | | --reload-url url | http://127.0.0.1:9090/-/reload | | --listen-address | metrics | | --statefulset-ordinal-from-envvar | | --watch-interval | 3m | | --delay-interval | 1s | | --retry-interval | 5s | | --log-format | | --log-level | info |

  • config-file 可以是 gz
    • k8s secret 最多 1MB
spec:
  containers:
    - name: config-reloader
      image: quay.io/prometheus-operator/prometheus-config-reloader:v0.48.1
      command:
        - /bin/prometheus-config-reloader
      args:
        - '--reload-url=http://localhost:8429/-/reload'
        - '--config-envsubst-file=/etc/vmagent/config_out/vmagent.env.yaml'
        - '--watched-dir=/etc/vm/relabeling'
        - '--config-file=/etc/vmagent/config/vmagent.yaml.gz'
      env:
        - name: POD_NAME
          valueFrom:
            fieldRef:
              apiVersion: v1
              fieldPath: metadata.name
      resources:
        limits:
          cpu: 100m
          memory: 25Mi
        requests:
          cpu: 100m
          memory: 25Mi
      volumeMounts:
        - name: config
          mountPath: /etc/vmagent/config
        - name: config-out
          mountPath: /etc/vmagent/config_out
        - name: relabeling-assets
          readOnly: true
          mountPath: /etc/vm/relabeling
        - name: kube-api-access-g58qm
          readOnly: true
          mountPath: /var/run/secrets/kubernetes.io/serviceaccount
      terminationMessagePath: /dev/termination-log
      terminationMessagePolicy: FallbackToLogsOnError
      imagePullPolicy: IfNotPresent