[cmd/telemetrygen] expose the generated span duration as a command pa… #29116
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…rameter - set the start and end times of both parent and child spans - add test to ensure span duration matches that provided
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open-telemetry#29116) **Description:** As originally proposed in open-telemetry#26991 before I got distracted Exposes the duration of generated spans as a command line parameter. It uses a `DurationVar` flag so units can be easily provided and are automatically applied. Example usage: ```bash telemetrygen traces --traces 100 --otlp-insecure --span-duration 10ns # nanoseconds telemetrygen traces --traces 100 --otlp-insecure --span-duration 10us # microseconds telemetrygen traces --traces 100 --otlp-insecure --span-duration 10ms # milliseconds telemetrygen traces --traces 100 --otlp-insecure --span-duration 10s # seconds ``` **Testing:** Ran without the argument provided `telemetrygen traces --traces 1 --otlp-insecure` and seen spans publishing with the default value. Ran again with the argument provided: `telemetrygen traces --traces 1 --otlp-insecure --span-duration 1s` And observed the expected output: ``` Resource SchemaURL: https://opentelemetry.io/schemas/1.4.0 Resource attributes: -> service.name: Str(telemetrygen) ScopeSpans #0 ScopeSpans SchemaURL: InstrumentationScope telemetrygen Span #0 Trace ID : 8b441587ffa5820688b87a6b511d634c Parent ID : 39faad428638791b ID : 88f0886894bd4ee2 Name : okey-dokey Kind : Server Start time : 2023-11-12 02:05:07.97443 +0000 UTC End time : 2023-11-12 02:05:08.97443 +0000 UTC Status code : Unset Status message : Attributes: -> net.peer.ip: Str(1.2.3.4) -> peer.service: Str(telemetrygen-client) Span #1 Trace ID : 8b441587ffa5820688b87a6b511d634c Parent ID : ID : 39faad428638791b Name : lets-go Kind : Client Start time : 2023-11-12 02:05:07.97443 +0000 UTC End time : 2023-11-12 02:05:08.97443 +0000 UTC Status code : Unset Status message : Attributes: -> net.peer.ip: Str(1.2.3.4) -> peer.service: Str(telemetrygen-server) {"kind": "exporter", "data_type": "traces", "name": "debug"} ``` **Documentation:** No documentation added. --------- Co-authored-by: Pablo Baeyens <[email protected]>
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Description:
As originally proposed in #26991 before I got distracted
Exposes the duration of generated spans as a command line parameter. It uses a
DurationVarflag so units can be easily provided and are automatically applied.Example usage:
Testing:
Ran without the argument provided
telemetrygen traces --traces 1 --otlp-insecureand seen spans publishing with the default value.Ran again with the argument provided:
telemetrygen traces --traces 1 --otlp-insecure --span-duration 1sAnd observed the expected output:
Documentation: No documentation added.