Prometheus Alertmanager如何配置externalURL和generatorURL？alermanager webhook

在promethes和alertmanager启动的时候，都加上--web.external-url就可以了

./prometheus --config.file=prometheus.yml --web.external-url=http://x.x.x.x:9090
./alertmanager --config.file=alertmanager.yml --web.external-url=http://x.x.x.x:9093

 

 

【1】alertmanager webhook 内容

（1）alertmanager.yml 配置

   global:
     resolve_timeout: 5m
   
   route:
     group_by: ['alertname']
     group_wait: 10s
     group_interval: 10s
     repeat_interval: 1h
     receiver: 'web.hook'
  receivers:
  - name: 'web.hook'
    webhook_configs:
    - url: 'http://127.0.0.1:5001/'
  inhibit_rules:
    - source_match:
        severity: 'critical'
      target_match:
        severity: 'warning'
      equal: ['alertname', 'dev', 'instance']

（2）发送给 webhook 的 内容为json串

其实 alertmanager发给webhook 以及其他接收者的信息是一个 json 串。

{
    "receiver":"webhook",
    "status":"resolved",
    "alerts":[
        {
            "status":"resolved",
            "labels":{
                "alertname":"hostCpuUsageAlert",
                "instance":"192.168.199.24:9100",
                "severity":"page"
            },
            "annotations":{
                "description":"192.168.199.24:9100 CPU 使用率超过 85% (当前值为: 0.9973333333333395)",
                "summary":"机器 192.168.199.24:9100 CPU 使用率过高"
            },
            "startsAt":"2020-02-29T19:45:21.799548092+08:00",
            "endsAt":"2020-02-29T19:49:21.799548092+08:00",
            "generatorURL":"http://localhost.localdomain:9090/graph?g0.expr=sum+by%28instance%29+%28avg+without%28cpu%29+%28irate%28node_cpu_seconds_total%7Bmode%21%3D%22idle%22%7D%5B5m%5D%29%29%29+%3E+0.85&g0.tab=1",
            "fingerprint":"368e9616d542ab48"
        }
    ],
    "groupLabels":{
        "alertname":"hostCpuUsageAlert"
    },
    "commonLabels":{
        "alertname":"hostCpuUsageAlert",
        "instance":"192.168.199.24:9100",
        "severity":"page"
    },
    "commonAnnotations":{
        "description":"192.168.199.24:9100 CPU 使用率超过 85% (当前值为: 0.9973333333333395)",
        "summary":"机器 192.168.199.24:9100 CPU 使用率过高"
    },
    "externalURL":"http://localhost.localdomain:9093",
    "version":"4",
    "groupKey":"{}:{alertname="hostCpuUsageAlert"}"
}