Pushgateway
The Prometheus Pushgateway exists to allow ephemeral and batch jobs to expose their metrics to Prometheus. Since these kinds of jobs may not exist long enough to be scraped, they can instead push their metrics to a Pushgateway. The Pushgateway then exposes these metrics to Prometheus. The advantage of this approach is that in the case of the deployment of a new service, there is no need for the Prometheus monitoring server to search for data related to the newly deployed VNF, but rather collect them from the PushGateway.
