Grafana 变量引用 prometheus 统计名称的一部分

Question

Is it possible to reference a prometheus metric by partially using a Grafana variable?

I have metrics coming in from multiple sources like this

foo_bar{job, status} zoo_bar{job, status} xoo_bar{job, status}

I have added an interval variable with a list of possible prefixes foo, zoo, xoo. How do I reference the stats if I want to combine charts on one dashboard? I tried something like this, but it gives me syntax error at the $ sign.

    increase(${var_name}_bar{job="myjob", status!~="401|404|500"})

Answer 1

Adding answer for anybody potentially having the same issue. Seems like moving the metric stats in side the curly brackets and referencing name works. If there is aa better solution I would be happy to know.

    increase({__name__=~"${variable}_bar", job="myjob", status!~="401|404|500"})