监控告警通知问题：监控告警通知设置不当，导致问题未能及时处理

# 示例：Prometheus Alertmanager 配置
route:
  receiver: 'email-notifications'
 
receivers:
- name: 'email-notifications'
  email_configs:
  - to: 'admin@example.com' 
    from: 'alertmanager@example.com' 
    smarthost: 'smtp.example.com:587' 
    auth_username: 'alertmanager@example.com' 
    auth_password: 'password'

# 示例：Prometheus Alertmanager 配置
receivers:
- name: 'slack-notifications'
  slack_configs:
  - api_url: 'https://hooks.slack.com/services/your/webhook/url' 
    channel: '#alerts'
    send_resolved: true 

# 示例：Twilio 发送电话告警
curl -X POST https://api.twilio.com/2010-04-01/Accounts/{AccountSID}/Calls.json  \
--data-urlencode "To=+1234567890" \
--data-urlencode "From=+0987654321" \
--data-urlencode "Url=http://example.com/alert_message.xml"  \
-u {AccountSID}:{AuthToken}

# 示例：高优先级告警
groups:
- name: example
  rules:
  - alert: ServiceDown
    expr: up == 0
    for: 1m
    labels:
      severity: critical
    annotations:
      summary: "Service down on {{ $labels.instance  }}"
      description: "The service on {{ $labels.instance  }} has been down for more than 1 minute."
 
# 示例：中优先级告警 
  - alert: HighCpuUsage
    expr: 100 - (avg by (instance) (irate(node_cpu_seconds_total{mode="idle"}[5m])) * 100) > 80
    for: 5m 
    labels:
      severity: warning 
    annotations:
      summary: "High CPU usage on {{ $labels.instance  }}"
      description: "CPU usage is above 80% for more than 5 minutes."

# 示例：高优先级告警
Trigger: {Template OS Linux:system.cpu.util[,user].last()}>90 
Severity: High
 
# 示例：中优先级告警
Trigger: {Template OS Linux:vfs.fs.size[/,pfree].last()}<20  
Severity: Warning 

# 示例：Alertmanager 配置
route:
  group_by: ['alertname']
  group_wait: 30s
  group_interval: 5m
  repeat_interval: 1h

# 示例：调整触发器的更新间隔
Update interval: 300s

# 模拟高负载
stress-ng --cpu 4 --timeout 60s 
 
# 模拟网络中断
iptables -A INPUT -p tcp --dport 80 -j DROP 

#!/bin/bash
 
# 测试告警通知 
test_alert_notification() {
    echo "开始测试告警通知..."
    stress-ng --cpu 4 --timeout 60s 
    if [ $? -eq 0 ]; then
        echo "测试成功" >> /var/log/alert_notification_test.log 
    else
        echo "测试失败" >> /var/log/alert_notification_test.log  
    fi
}
 
test_alert_notification