tracing-endpoint: add support for OTLP+HTTP #3580
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AhmedSoliman
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This PR adds OTLP+HTTP support to the tracing-endpoint and/or tracing-services-endpoint OTel trace data exporter.
Until now, these endpoints configured an OTel trace data exporter that was hard-coded to use the gRPC transport. If you're familiar with OTel conventions this would correspond to what a collector can accept on typical port 4317.
With this change users can specify transport (and encoding) via the tracing-endpoint's scheme. For example to emit OTLP/HTTP you would set tracing-endpoint to e.g.
otlp+http://my.collector.biz:4318/v1/traces-- note the/v1/tracespath.