Datadog configuration of OTLP exporter

This guide walks through configuring the Apollo Router to send metrics to Datadog via the Datadog Agent. For an overview of all available connection methods, see Connecting to Datadog.

This metrics exporter is a configuration of the OTLP exporter to use with Datadog.

For general metrics configuration, refer to Router Metrics Configuration. For router instrumentation with Datadog-specific attributes, see the Router Instrumentation guide.

Configuration

To export metrics to Datadog, you must configure both the router to send traces to the Datadog agent and the Datadog agent to accept OpenTelemetry Protocol (OTLP) metrics.

Router configuration

You should enable the OTLP exporter and set both temporality: delta and endpoint: <datadog-agent-endpoint>. For example:

1telemetry:
2  exporters:
3    metrics:
4      otlp:
5        enabled: true
6        # Temporality MUST be set to delta. Failure to do this will result in incorrect metrics.
7        temporality: delta
8        # Optional endpoint, either 'default' or a URL (Defaults to http://127.0.0.1:4317)
9        endpoint: "${env.DATADOG_AGENT_HOST}:4317"

Datadog agent configuration

To configure the Datadog agent, add OTLP configuration (otlp_config) to your datadog.yaml. For example:

1otlp_config:
2  receiver:
3    protocols:
4      grpc:
5        endpoint: <dd-agent-ip>:4317

For more details about Datadog configuration, see Datadog's docs on Agent configuration.