Vault Cluster Monitoring with Prometheus

Prometheus, when used alongside a time-series database like InfluxDB](https://www.influxdata.com/), is a powerful open source monitoring tool (and one of the most popular). Prometheus is a modern alternative to StatsD-compatible daemons, using lightweight HTTP servers called "exporters" which are then scraped by a Prometheus server. Prometheus is increasingly popular in the containerized world. Rather than the UDP-based "fire and forget" mechanism used by StatsD, Prometheus relies on lightweight HTTP servers called "exporters" which are then scraped by a Prometheus server.

In this demo by Nebulaworks, a Vault cluster will first be deployed, a pre-built Prometheus configuration will be reviewed, and then alerting and monitoring for the cluster will be set up. Telegraf will be used as the plugin-driven server agent for collecting and reporting metrics, and the StatsD to Prometheus metrics exporter can be found right here.

For additional instructions on how to monitor HashiCorp Vault clusters, read the HashiCorp Learn page on Vault Cluster Monitoring and check out the comprehensive Vault/Consul Monitoring Guide.