Prometheus is an open-source metrics oriented monitoring and alerting tool. The project was first created by SoundCloud in 2012. In 2016 the project joined the Cloud Native Compute Foundation (CNCF). In 2018, it’s CNCF maturity status changed from incubation to graduated. Prometheus was only the second CNCF project to graduate, after Kubernetes.
Prometheus has quickly become the de facto open-source monitoring tool for Kubernetes and is widely used and supported in the Cloud Native industry.
As described on the Prometheus.io website, the main features of Prometheus are:
For a more detailed introduction to Prometheus, the introduction on the Prometheus documentation website is excellent.
The rest of this chapter details how to deploy Prometheus to Kubernetes.