Opentelemetry exporter trying to connect via https

Natalio Gatti

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Mar 21, 2024, 11:21:03 AM3/21/24

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Hello, I am trying to configure krakend to export metrics and monitoring to a datadog agent.

The datadog agent is working and is currently receiving information from other applications. Datadog agent is configured to receive HTTP (not HTTPS) requests, so I configured krakend opentelemetry with:

    "telemetry/opentelemetry": {
      "service_name": "datadog-krakend",
      "metric_reporting_period": 1,
      "@comment": "Report 10% of traces",
      "trace_sample_rate": 0.1,
      "exporters": {
          "otlp": [
              {
                  "name": "datadog_agent",
                  "host": "10.0.126.27",
                  "port": 8126,
                  "use_http": true
              }
          ]
      }

but then I see the following error on krakend logs:

ERROR [SERVICE OpenTelemetry] failed to upload metrics: Post "https://10.0.126.27:8126/v1/metrics": http: server gave HTTP response to HTTPS client

It seems krakend is trying to connect via HTTPS instead of plain HTTP. Is there any parameter I can config to force krakend to use plain HTTP?

Thanks,

Natalio.

Albert Lombarte

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Apr 12, 2024, 3:39:34 AM4/12/24

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Hi Natalio,

Set "use_http": false to communicate via gRPC with the Datadog agent

Let me know if that works for you

El dia dijous, 21 de març del 2024 a les 16:21:03 UTC+1, nat...@tmm.ventures va escriure:

Natalio Gatti

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Apr 12, 2024, 7:34:28 AM4/12/24

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Hi Albert, thanks for your response. My datadog agent wasn't configured to attend for grpc, that's why I wanted to use HTTP.

I reconfigured the agent to support both http (for my previous confs) and grpc (for krakend) and everything is working correctly.

Anyway I think there should be an option to allow krakend to use HTTP instead of HTTPS.