Add B3 multi header propagation support #495
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Some services expect [B3 Multi][1] headers as input information. To support that we need to be able to Inject them into upstream requests. Lowercase headers used to be [compatible][2] with Istio Envoy. Tests will be added as a separate commit later on. Solving #36 [1]: https://github.com/openzipkin/b3-propagation#multiple-headers [2]: open-telemetry/opentelemetry-go#765
lalitb
reviewed
Dec 4, 2024
lalitb
reviewed
Dec 4, 2024
| if (traceContext == nullptr || !traceContext->request_span) { | ||
| ngx_log_error( | ||
| NGX_LOG_ERR, req->connection->log, 0, | ||
| "Unable to get trace context when getting span id"); |
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nit, can be ignored if doesn't look good -
Suggested change
| "Unable to get trace context when getting span id"); | |
| "Invalid trace context or request span when getting span id"); |
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I've signed the CLA, but for some reason I'm getting an EasyCLA error when pushing to this branch, will change the wording in another PR.
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Original PR: #103
I've brought it up to date and added tests, retained the original commits by @kuzaxak