Part3 告警配置prometheus.md

告警配置 prometheus

192.168.140.132     部署prometheus，端口9090

192.168.140.132     部署alertmanager，端口9093

更改prometheus配置

更改运行配置，输入命令：

    cd /usr/local/prometheus

    vi prometheus.yml

    =>

        # alertmanager 配置
        alerting:
          alertmanagers:
            - static_configs:
              - targets: ["192.168.140.132:9093"]

        # 告警规则文件配置
        rule_files:
          - 'rules/*.yml'

添加规则配置，输入命令：

    cd /usr/local/prometheus

    mkdir rules

    vi node-rules.yml

    =>

        groups:
        - name: memory-rule
          rules:
          - alert: "内存不足"
            expr: 100 - ((node_memory_MemAvailable * 100) / node_memory_MemTotal) > 10
            for: 1m
            labels:
              level: Minor
            annotations:
              summary: "当前内存剩余不足{{ $value }}"
        - name: up-rule
          rules:
          - alert: "进程已下线"
            expr: up == 0
            for: 1m
            labels:
              level: Urgent
            annotations:
              summary: "该进程状态为已下线"