Promdate is a simple Web service which acts as a bridge between the Prometheus Operator's ServiceMonitor objects, and external sites which normally can't be represented by a ServiceMonitor. Simply pass the URL, minus the scheme/protocol, to ServiceMonitor in its path property, and the proxy will fetch the contents of that URL and return it.
For instance, if Promdate is hosted at http://promdate.local, then this URL:
http://promdate.local/www.acme.com/metrics/ will return the contents of https://www.acme.com/metrics
- a working Kubernetes cluster
- a working Prometheus environment in Kubernetes, with the Prometheus Operator and CRDs installed
- a site with a metrics exporter that is reachable by http/https
You may only need one instance of Promdate per cluster.
The important bits involved are:
- host the promdate container and expose it via a Service object. This project provides an example using a simple Deployment and a Service
- create one or more Prometheus ServiceMonitor objects that point at the Service. This project provides an example ServiceMonitor object