On Tuesday, 1 September 2020 05:08:27 UTC+1, kiran wrote: > > In Promethues alert rules file, I am trying to understand what variables > are available to use: > In the screenshot below, I see *$value *, *$labels*, *$labels.instance* > How do I know what variables are available to access within labels? Are > these the keys(instance, job etc.) associated with a metric? >
Yes, these are labels of the timeseries. https://prometheus.io/docs/concepts/data_model/ The "expr" in an alert rule is a PromQL query which acts as a filter - filtering down the universe of timeseries in your prometheus server to a selected subset. If the subset has more than zero results, then an alert is fired. For example: expr: up == 0 returns all timeseries whose metric name is "up" and the value is zero. Each instance of "up" in the result set has its own bag of labels. > -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/edc1841a-45eb-4f26-887f-a1cd8fca0ae0o%40googlegroups.com.
