gRPC External Exporter Configuration Options Missing

[natemollica-nm]

Description

While attempting to configure consul-k8s integration to datadog using Datadog's built-in OTLP receiver options for gRPC and HTTP, I found that configuring the gRPC external endpoint outside of the helm value overrides was not possible as it was with the HTTP endpoint.

Datadog Operator Values

apiVersion: datadoghq.com/v2alpha1
kind: DatadogAgent
metadata:
  name: datadog
spec:
  features:
    # Sets: DD_OTLP_CONFIG_RECEIVER_PROTOCOLS_GRPC_ENDPOINT:  0.0.0.0:4317                                                                                                                                              │
    #       DD_OTLP_CONFIG_RECEIVER_PROTOCOLS_HTTP_ENDPOINT:  0.0.0.0:4318
    otlp:
      receiver:
        protocols:
          # Set to "0.0.0.0" as per the below reference docs
          # ref: https://docs.datadoghq.com/opentelemetry/otlp_ingest_in_the_agent/?tab=host#enabling-otlp-ingestion-on-the-datadog-agent
          grpc:
            enabled: true
            endpoint: "0.0.0.0:4317"

Consul Overrides

  metrics:
    enabled: true
    enableAgentMetrics: true
    datadog:
      enabled: true
      otlp:
        enabled: true
        protocol: "grpc"
telemetryCollector:
  enabled: true

Potential Resolution

• Addition of a similar environment variable configuration option to that CO_OTEL_HTTP_ENDPOINT for gRPC receivers
• Addition of a similar CLI parameter flag to that of http-collector-endpoint for gRPC receivers

Version

Image: hashicorp/consul-telemetry-collector:0.0.2