[root@rockylinux8 prometheus]# cat alertmanager.yml 
global:
  resolve_timeout: 5m

route:
  group_by: ['alertname']
  group_wait: 30s
  group_interval: 5m
  repeat_interval: 3h
  receiver: 'feishu'

receivers:
  - name: 'feishu'
    webhook_configs:
      - url: 'http://192.168.71.128:8088/prometheusalert?type=fs&tpl=prometheus-fs&fsurl=https://open.feishu.cn/open-apis/bot/v2/hook/14696091-e4cb-4902-8888-bd3ba0796723'  # 你的飛書 Webhook URL

# Optional: 可以配置告警分組甸私、間隔等站绪，調(diào)整告警通知的頻率和方式

[root@rockylinux8 prometheus]# cat alert.rules 
groups:
  - name: example-alerts
    rules:
      - alert: HighMemoryUsage
        expr: 100 * (node_memory_MemTotal_bytes - node_memory_MemAvailable_bytes) / node_memory_MemTotal_bytes > 80
        for: 5m  # 持續(xù) 5 分鐘超過(guò)閾值才觸發(fā)告警
        labels:
          severity: critical
        annotations:
          summary: "Host memory usage is above 80%"
          description: "Memory usage on {{ $labels.instance }} is above 80%."
      - alert: ProcessHelloDown
        expr: (namedprocess_namegroup_num_procs{groupname="map[:helloworld.jar]"}) == 0
        for: 1m
        labels:
          severity: critical
        annotations:
          summary: "{{ $labels.instance }}: Process helloworld-exec Down"
          description: "{{ $labels.instance }}: Process helloworld has been down for more than 1m"
          value: "{{ $value }}"

[root@rockylinux8 prometheus]# cat process.yml 
process_names:
  - name: "{{.Matches}}"
    cmdline:
    - 'helloworld.jar'

[root@rockylinux8 prometheus]# cat prometheus.yml 
global:
  scrape_interval: 15s

scrape_configs:
  - job_name: 'prometheus'
    static_configs:
      - targets: ['192.168.71.128:9090']

  - job_name: 'node'
    static_configs:
      - targets: ['192.168.71.128:9100']

  - job_name: 'process_exporter'
    static_configs:
      - targets: ['192.168.71.128:9256']

alerting:
  alertmanagers:
  - static_configs:
    - targets:
      - '192.168.71.128:9093'  # Alertmanager 容器的地址

rule_files:
  - "alert.rules"  # 指向告警規(guī)則文件

[root@rockylinux8 prometheus]# cat docker-compose.yml 
version: '3'

services:
  prometheus:
    image: prom/prometheus
    container_name: prometheus
    ports:
      - "9090:9090"
    volumes:
      - /root/prometheus/prometheus.yml:/etc/prometheus/prometheus.yml
      - /root/prometheus/alert.rules:/etc/prometheus/alert.rules
    networks:
      - monitoring

  grafana:
    image: grafana/grafana
    container_name: grafana
    ports:
      - "3000:3000"
    environment:
      GF_SECURITY_ADMIN_PASSWORD: admin
    networks:
      - monitoring

  node-exporter:
    image: prom/node-exporter
    container_name: node-exporter
    ports:
      - "9100:9100"
    networks:
      - monitoring
  process-exporter:
    image: ncabatoff/process-exporter:0.7.10
    container_name: process-exporter
    ports:
      - "9256:9256"
    volumes:
      - /proc:/host/proc
      - /root/prometheus/process.yml:/config/process.yml
    command: --procfs /host/proc --config.path /config/process.yml
    networks:
      - monitoring
  alertmanager:
    image: prom/alertmanager
    container_name: alertmanager
    ports:
      - "9093:9093"
    volumes:
      - /root/prometheus//alertmanager.yml:/etc/alertmanager/alertmanager.yml  # 掛載配置文件
    networks:
      - monitoring

networks:
  monitoring:
    driver: bridge