Transform OTLP gRPC to HTTP with the OTel Collector

• Latest Dynatrace
• How-to guide
• 1-min read
• Published Oct 11, 2023

The following configuration example shows how you would configure a Collector instance to transform a gRPC OTLP request to its HTTP counterpart.

Prerequisites

See Collector Deployment and Collector Configuration on how to set up your Collector with the configuration below.

Demo configuration

receivers:
  otlp:
    protocols:
      grpc:
        endpoint: 0.0.0.0:4317

exporters:
  otlp_http:
    endpoint: ${env:DT_ENDPOINT}
    headers:
      Authorization: "Api-Token ${env:DT_API_TOKEN}"

service:
  pipelines:
    traces:
      receivers: [otlp]
      processors: []
      exporters: [otlp_http]
    metrics:
      receivers: [otlp]
      processors: []
      exporters: [otlp_http]
    logs:
      receivers: [otlp]
      processors: []
      exporters: [otlp_http]

Components

For our configuration, we configure the following components.

Receivers

Under receivers, we specify the gRPC otlp receiver as active receiver component for our Collector instance.

Exporters

Under exporters, we specify the default otlp_http exporter and configure it with our Dynatrace API URL and the required authentication token.

For this purpose, we set the following two environment variables and reference them in the configuration values for endpoint and Authorization.

Service pipelines

Under service, we eventually assemble our receiver and exporter objects into pipelines, which explicitly accept gRPC requests and forward them on HTTP to Dynatrace.

Limits and limitations

Data is ingested using the OpenTelemetry protocol (OTLP) via the Dynatrace OTLP APIs and is subject to the API's limits and restrictions. For more information see: