What is Prometheus?# Prometheus is a monitoring solution created by SoundCloud in 2012 and open-sourced in 2015. In 2016, Prometheus became the second project to join the Cloud Native Computing Foundation (the first being Kubernetes). Prometheus is designed to monitor metrics from applications or servers. It consists of 3 parts: The query engine to retrieve metrics from exporters; The Time Series Database (TSDB) that stores short-term data; The web service that allows querying the database.