You can use regular expression matching or not-equals matching.
some_metric_name{some_label!=""}
This will match any metric where the label is present.
On Thu, Dec 3, 2020 at 10:06 AM lizhihua0925 <[email protected]> wrote:
> Hi,
>
>
> It is not same.
>
>
> What I want to do is limit the rule to eval metrics which have the
> spcified label.
>
>
> Kind regards,
> Allenzh li
>
>
> 在 2020年12月3日 16:53，Christian Hoffmann<[email protected]> 写道：
>
> Hi,
>
> On 12/3/20 9:48 AM, Allenzh li wrote:
> > Exactly, I develop a API which accept prometheus rule from web.
> > When user create a new rule, I want to add a fixed matcher(xxId="xxx"),
> > which label name is fixed and label value is various.
> >
> > eg.
> > cpu_usage / avg_over_time(cpu_usage[5m] offset 24h) > 2 ->
> > cpu_usage{xxId="xxx"} / avg_over_time(cpu_usage{xxId="xxx"}[5m] offset
> > 24h) > 2
> So it seems like your web application will only handle the
> alert-specific PromQL expression which ends up in the alert's "expr" field.
>
> It seems like it would be straight forward to add the static label with
> the dynamic value directly into the Prometheus alert using the labels:
> field?
> https://prometheus.io/docs/prometheus/latest/configuration/alerting_rules/
> (Ctrl+F "severity: page")
>
> Kind regards,
> Christian
>
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