[connector/spanmetrics] spanmetrics connector support exemplar

[fatsheep9146]

Description:
fix #20771

Link to tracking Issue:

Testing:

Documentation:

[runforesight]

Foresight Summary

    
Major Impacts

build-and-test-windows duration(5 seconds) has decreased 30 minutes 39 seconds compared to main branch avg(30 minutes 44 seconds).

View More Details

⭕  build-and-test-windows workflow has finished in 5 seconds (30 minutes 47 seconds less than main branch avg.) and finished at 10th Apr, 2023.

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Job	Failed Steps	Tests
windows-unittest-matrix	-     🔗	N/A	See Details
windows-unittest	-     🔗	N/A	See Details

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✅  check-links workflow has finished in 45 seconds and finished at 10th Apr, 2023.

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Job	Failed Steps	Tests
changed files	-     🔗	N/A	See Details
check-links	-     🔗	N/A	See Details

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✅  telemetrygen workflow has finished in 1 minute 1 second and finished at 10th Apr, 2023.

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Job	Failed Steps	Tests
build-dev	-     🔗	N/A	See Details
publish-latest	-     🔗	N/A	See Details
publish-stable	-     🔗	N/A	See Details

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✅  changelog workflow has finished in 2 minutes 22 seconds and finished at 10th Apr, 2023.

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Job	Failed Steps	Tests
changelog	-     🔗	N/A	See Details

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✅  prometheus-compliance-tests workflow has finished in 3 minutes 9 seconds (3 minutes 9 seconds less than main branch avg.) and finished at 10th Apr, 2023.

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Job	Failed Steps	Tests
prometheus-compliance-tests	-     🔗	N/A	See Details

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✅  load-tests workflow has finished in 7 minutes 11 seconds (3 minutes 9 seconds less than main branch avg.) and finished at 10th Apr, 2023.

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Job	Failed Steps	Tests
setup-environment	-     🔗	N/A	See Details
loadtest (TestIdleMode)	-     🔗	N/A	See Details
loadtest (TestBallastMemory|TestLog10kDPS)	-     🔗	N/A	See Details
loadtest (TestMetric10kDPS|TestMetricsFromFile)	-     🔗	N/A	See Details
loadtest (TestMetricResourceProcessor|TestTrace10kSPS)	-     🔗	N/A	See Details
loadtest (TestTraceNoBackend10kSPS|TestTrace1kSPSWithAttrs)	-     🔗	N/A	See Details
loadtest (TestTraceBallast1kSPSWithAttrs|TestTraceBallast1kSPSAddAttrs)	-     🔗	N/A	See Details
loadtest (TestTraceAttributesProcessor)	-     🔗	N/A	See Details

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✅  e2e-tests workflow has finished in 12 minutes 46 seconds and finished at 10th Apr, 2023.

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Job	Failed Steps	Tests
kubernetes-test (v1.26.0)	-     🔗	N/A	See Details
kubernetes-test (v1.25.3)	-     🔗	N/A	See Details
kubernetes-test (v1.24.7)	-     🔗	N/A	See Details
kubernetes-test (v1.23.13)	-     🔗	N/A	See Details

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✅  build-and-test workflow has finished in 35 minutes 59 seconds (10 minutes 38 seconds less than main branch avg.) and finished at 10th Apr, 2023.

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Job	Failed Steps	Tests
setup-environment	-     🔗	N/A	See Details
check-collector-module-version	-     🔗	N/A	See Details
checks	-     🔗	N/A	See Details
check-codeowners	-     🔗	N/A	See Details
correctness-metrics	-     🔗	N/A	See Details
correctness-traces	-     🔗	N/A	See Details
build-examples	-     🔗	N/A	See Details
integration-tests	-     🔗	N/A	See Details
lint-matrix (receiver-0)	-     🔗	N/A	See Details
lint-matrix (receiver-1)	-     🔗	N/A	See Details
lint-matrix (processor)	-     🔗	N/A	See Details
lint-matrix (exporter)	-     🔗	N/A	See Details
lint-matrix (extension)	-     🔗	N/A	See Details
lint-matrix (connector)	-     🔗	N/A	See Details
lint-matrix (internal)	-     🔗	N/A	See Details
lint-matrix (other)	-     🔗	N/A	See Details
unittest-matrix (1.20, receiver-0)	-     🔗	N/A	See Details
unittest-matrix (1.20, receiver-1)	-     🔗	N/A	See Details
unittest-matrix (1.20, processor)	-     🔗	N/A	See Details
unittest-matrix (1.20, exporter)	-     🔗	N/A	See Details
unittest-matrix (1.20, extension)	-     🔗	N/A	See Details
unittest-matrix (1.20, connector)	-     🔗	N/A	See Details
unittest-matrix (1.20, internal)	-     🔗	N/A	See Details
unittest-matrix (1.20, other)	-     🔗	N/A	See Details
unittest-matrix (1.19, receiver-0)	-     🔗	N/A	See Details
unittest-matrix (1.19, receiver-1)	-     🔗	N/A	See Details
unittest-matrix (1.19, processor)	-     🔗	N/A	See Details
unittest-matrix (1.19, exporter)	-     🔗	N/A	See Details
unittest-matrix (1.19, extension)	-     🔗	N/A	See Details
unittest-matrix (1.19, connector)	-     🔗	N/A	See Details
unittest-matrix (1.19, internal)	-     🔗	N/A	See Details
unittest-matrix (1.19, other)	-     🔗	N/A	See Details
lint	-     🔗	N/A	See Details
unittest (1.20)	-     🔗	N/A	See Details
unittest (1.19)	-     🔗	N/A	See Details
cross-compile (darwin, amd64)	-     🔗	N/A	See Details
cross-compile (darwin, arm64)	-     🔗	N/A	See Details
cross-compile (linux, 386)	-     🔗	N/A	See Details
cross-compile (linux, amd64)	-     🔗	N/A	See Details
cross-compile (linux, arm)	-     🔗	N/A	See Details
cross-compile (linux, arm64)	-     🔗	N/A	See Details
cross-compile (linux, ppc64le)	-     🔗	N/A	See Details
cross-compile (windows, 386)	-     🔗	N/A	See Details
cross-compile (windows, amd64)	-     🔗	N/A	See Details
build-package (deb)	-     🔗	N/A	See Details
build-package (rpm)	-     🔗	N/A	See Details
windows-msi	-     🔗	N/A	See Details
publish-check	-     🔗	N/A	See Details
publish-dev	-     🔗	N/A	See Details
publish-stable	-     🔗	N/A	See Details
rotate-milestone	-     🔗	N/A	See Details

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[kovrus]

lgtm 👍

[fatsheep9146]

@albertteoh could you also help review about this?

[albertteoh]

Looks good!

[fatsheep9146]

@djaglowski could you help review this?