Rollup based on metrics

[DariaKunoichi]

Closes: GH-515

Description of change

Checklist

• Tested in playground or other setup

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This change is 

[codecov]

Codecov Report

Base: 37.26% // Head: 37.28% // Increases project coverage by +0.02% 🎉

Coverage data is based on head (5ad17af) compared to base (066bcb0).
Patch coverage: 100.00% of modified lines in pull request are covered.

❗ Current head 5ad17af differs from pull request most recent head 23d5b57. Consider uploading reports for the commit 23d5b57 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #821      +/-   ##
==========================================
+ Coverage   37.26%   37.28%   +0.02%     
==========================================
  Files         273      273              
  Lines       20392    20400       +8     
==========================================
+ Hits         7599     7607       +8     
  Misses      12311    12311              
  Partials      482      482              

Impacted Files	Coverage Δ
pkg/otelcollector/rollupprocessor/rollup.go	100.00% <ø> (ø)
pkg/otelcollector/rollupprocessor/processor.go	87.15% <100.00%> (+0.48%)	⬆️

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[krdln]

Reviewed 3 of 3 files at r1, all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @DariaKunoichi)

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pkg/otelcollector/rollupprocessor/processor_test.go line 93 at r1 (raw file):

			logRecord = logs.AppendEmpty()
			logRecord.Attributes().PutStr(otelcollector.WorkloadDurationLabel, strconv.Itoa(attributeValues[2]))
			logRecord.Attributes().PutStr(otelcollector.ApertureSourceLabel, otelcollector.ApertureSourceEnvoy)

Nit: can you add some https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#google.protobuf.Value labels and make sure the datasketch is not created? (NotTo(HaveKey(...))

[krdln]

Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @DariaKunoichi)

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pkg/otelcollector/rollupprocessor/processor_test.go line 93 at r1 (raw file):

Previously, krdln (Michał Krasnoborski) wrote…

Nit: can you add some https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#google.protobuf.Value labels and make sure the datasketch is not created? (NotTo(HaveKey(...))

I meant HTTPRequestContentLength (bad copy-paste :P)