Support for HTTPS tracing protocol

[Daniel Loader]

It looks from glancing at the source this action only supports gRPC for the OTEL traces, can I confirm this is correct?

Looks that you'd need to import/use https://www.npmjs.com/package/@opentelemetry/exporter-trace-otlp-proto conditionally based on the environment variable for the protocol, or pickup and guess from the endpoint protocol prefix in the URI.

Was trying to use the action with grafana cloud but they haven't got gRPC support yet for ingesting OTEL tracing spans and as expected if the above assumption is true then it's an expected failure.

      - name: Export Workflow Trace
        uses: inception-health/otel-export-trace-action@latest
        env: 
          OTEL_EXPORTER_OTLP_PROTOCOL: http/protobuf
        with:
          otlpEndpoint: https://otlp-gateway-prod-eu-west-2.grafana.net/otlp
          otlpHeaders: "Authorization=Basic ${{ secrets.OLTP_ACTIONS_TRACES_HEADER }}"
          githubToken: ${{ secrets.GITHUB_TOKEN }}
          runId: ${{ github.event.workflow_run.id }}

Source: https://grafana.com/docs/grafana-cloud/send-data/otlp/send-data-otlp/#push-directly-from-applications-using-the-opentelemetry-sdks

https://opentelemetry.io/docs/concepts/sdk-configuration/otlp-exporter-configuration/#otel_exporter_otlp_traces_protocol

[Gerhard Lazu]

I was looking at doing exactly the same thing @danielloader.

Did you manage to make progress with this?

[Deleted user]

I'll want to use http as well, any update?