DC/OS 1.12 and later sends metrics via Telegraf, which may be configured to export metrics to Datadog. There is no need to install a metrics plugin, as in DC/OS 1.9, 1.10, and 1.11. This page explains how to add the appropriate configuration to DC/OS.

Prerequisite:

• You must have the DC/OS CLI installed and be logged in as a superuser via the dcos auth login command.

Configuring Telegraf to export metrics to Datadog

1. Create a file named datadog.conf with the following content:

   # Transmit all metrics to Datadog
   [[outputs.datadog]]
     ## Datadog API key
     apikey = "my-secret-key"
     ## Connection timeout
     # timeout = "5s"
   

2. Replace the apikey value with your Datadog API key.

3. On every node in your cluster, do the following tasks:

   1. Upload the datadog.conf file to /var/lib/dcos/telegraf/telegraf.d/datadog.conf.
   2. Restart the Telegraf process with your new configuration by running sudo systemctl restart dcos-telegraf command.
   3. Check the Datadog UI to see the incoming DC/OS metrics.