Prometheus 配置解析

配置文件例子

global:
  scrape_interval:     15s
  evaluation_interval: 15s

alerting:
  alertmanagers:
  - static_configs:
    - targets:
      - localhost:9093

rule_files:
- "rules.yml"

scrape_configs:
  - job_name: 'prometheus'
    static_configs:
    - targets: ['localhost:9090']
  - job_name: 'node_exporter'
    consul_sd_configs:
    - server: 192.168.10.17:8500
      tags:
      - node_exporter

rules.yml

groups:
- name: node-alert.rules
  rules:
  - alert: NodeNetworkReceiveTooHigh
    expr: irate(node_network_receive_bytes_total{device="eth0"}[2m]) > 1000
    for: 5m
    labels:
      severity: warning
    annotations:
      description: "{{ $labels.device }}当前速率 {{ $value  }} bytes"
      summary: "网络下载速度过快"
- name: node.rules
  rules:
  - record: node_network_receive_bytes_total:irate
    expr: irate(node_network_receive_bytes_total{device="eth0"}[2m])

联邦配置

scrape_configs:
  - job_name: 'federate'
    scrape_interval: 15s

    honor_labels: true
    metrics_path: '/federate'

    params:
      'match[]':
        - '{job="prometheus"}'
        - '{__name__=~"job:.*"}'

    static_configs:
      - targets:
        - 'source-prometheus-1:9090'
        - 'source-prometheus-2:9090'
        - 'source-prometheus-3:9090'