Mastering Service Mesh

Telegraf

Using the StatsD protocol, a plugin called Telegraf enables monitoring and metrics collection in Consul. StatsD (https://github.com/statsd/statsd) is a daemon that summarizes and aggregates key application metrics.

Telegraf collects metrics about the specific host where the Consul agent is deployed and running. The key attributes to collect are: CPU, memory, disk I/O, networking, and process status.

To enable Telegraf's metrics collection, within the Consul agent configuration file the following code needs to be added and enabled:

{  "telemetry": {    "dogstatsd_addr": "localhost:8125",    "disable_hostname": true  }}

Note that, when Consul is deployed using a Helm chart in a Kubernetes environment, the same feature can be enabled in values.yaml ...