英文:
Prometheus email alert to show metric value
问题
我在Prometheus/Alert Manager中有一个名为cs_job_time的标签，并希望在满足另一个作业的条件时发送电子邮件警报。电子邮件发送正常，但是否可以在电子邮件中包含cs_job_time的值？我可以使用{{$value}}来获取所需指标的值，但我还想打印出cs_job_time的值。
我看到了这个，但是当我尝试以下代码时：
time = "{{ `cs_job_time{instance='%s', job='/'}` $labels.instance | query | first }}
或类似的变体时，我收到错误消息"Error expanding alert template CSJobAlert with data '{map[] 2123}': runtime error: invalid memory address or nil pointer dereference" source="alerting.go:199"
是否可以通过电子邮件发送指标值？
英文:
I have a label cs_job_time in Prometheus/Alert Manager and would like to send an email alert when a condition is met for another job. The email sends fine but is it possible to include the value of cs_job_time within the email? I can use {{$value}} for the metric in question but I would also like to print the value of cs_job_time.
I came across this but when I try
time = "{{ `cs_job_time{instance='%s', job='/'}` $labels.instance | query | first }}
or similar variants, I get the error message "Error expanding alert template CSJobAlert with data '{map[] 2123}': runtime error: invalid memory address or nil pointer dereference" source="alerting.go:199"
Is it possible to email metric values?
答案1
得分: 3
你在示例中漏掉了printf：
"{{ printf `cs_job_time{instance='%s', job='/'}` $labels.instance | query | first }}"
不过要小心，如果没有结果，first会失败。通常最好使用一个范围语句，因为它能够适应这种情况。
英文:
You're missing the printf there from the example:
"{{ printf `cs_job_time{instance='%s', job='/'}` $labels.instance | query | first }}"
Be careful though, if there's no results then the first will fail. It's generally best to use a range statement as that'll be resilient to that.
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