PromQL
What is PromQL?
PromQL is the query language of the Prometheus monitoring system. It is a central feature of Prometheus that enables dashboarding, alerting, and ad-hoc querying of the collected time series data.
PromQL allows you to select, aggregate, and otherwise transform and compute on time series data in a flexible way. The result of an expression can either be shown as a graph, viewed as tabular data in Prometheus's expression browser, or consumed by external systems via the HTTP API.
PromQL is used only for reading data.