Prometheus for monitoring and alerting

After its initial appearance in 2012, Prometheus quickly gained popularity with its rich functionality and Time Series Database (TSDB) that allowed to persisting metrics for querying, analysis, and predictions. Interestingly, Prometheus was inspired by Google’s Borgmon – tool used for monitoring Google’s Borg – the predecessor of Kubernetes.

In 2016, Prometheus was accepted as the second CNCF project (after K8s) that has reached Graduated status by the year 2018. Today, Prometheus is considered an industry standard for monitoring and alerting and widely used with Kubernetes and other CNCF projects.

But enough history, let’s get to the point. First, what is a TSDB?

TSDB

Is a database optimized for storage of data with timestamps. The data could be measurements or events that are tracked and aggregated over time. In case of Prometheus, the data are metrics collected regularly from applications and parts...