[Instrumentation.EventCounters] DI support for configuring

[ysolomchenko]

Fixes #833

Changes

Event counters instrumentation can be enabled when using DI

New environment variables introduced for further customization:

• OTEL_DOTNET_EVENTCOUNTERS_REFRESH_INTERVAL_SECS: Specifies the refresh interval.
• OTEL_DOTNET_EVENTCOUNTERS_SOURCES: Defines the sources.

Merge requirement checklist

• CONTRIBUTING guidelines followed (license requirements, nullable enabled, static analysis, etc.)
• Unit tests added/updated
• Appropriate CHANGELOG.md files updated for non-trivial changes
• Changes in public API reviewed (if applicable)

[codecov]

Codecov Report

Attention: Patch coverage is 73.33333% with 12 lines in your changes missing coverage. Please review.

Project coverage is 72.97%. Comparing base (71655ce) to head (fd994e9).
Report is 586 commits behind head on main.

Files with missing lines	Patch %	Lines
...entCounters/EventCountersInstrumentationOptions.cs	66.66%	7 Missing ⚠️
...ounters/EventCountersInstrumentationEventSource.cs	0.00%	4 Missing ⚠️
...on.EventCounters/MeterProviderBuilderExtensions.cs	95.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2078      +/-   ##
==========================================
- Coverage   73.91%   72.97%   -0.95%     
==========================================
  Files         267      359      +92     
  Lines        9615    13826    +4211     
==========================================
+ Hits         7107    10089    +2982     
- Misses       2508     3737    +1229     

Flag	Coverage Δ
unittests-Contrib.Shared.Tests	83.17% <ø> (?)
unittests-Exporter.Geneva	62.69% <ø> (?)
unittests-Exporter.InfluxDB	95.88% <ø> (?)
unittests-Exporter.Instana	71.24% <ø> (?)
unittests-Exporter.OneCollector	94.34% <ø> (?)
unittests-Exporter.Stackdriver	75.73% <ø> (?)
unittests-Extensions	88.63% <ø> (?)
unittests-Extensions.Enrichment	100.00% <ø> (?)
unittests-Instrumentation.AWS	85.98% <ø> (?)
unittests-Instrumentation.AspNet	76.73% <ø> (?)
unittests-Instrumentation.AspNetCore	70.06% <ø> (?)
unittests-Instrumentation.ConfluentKafka	14.12% <ø> (?)
unittests-Instrumentation.ElasticsearchClient	79.87% <ø> (?)
unittests-Instrumentation.EntityFrameworkCore	57.06% <ø> (?)
unittests-Instrumentation.EventCounters	75.00% <73.33%> (?)
unittests-Instrumentation.GrpcNetClient	79.61% <ø> (?)
unittests-Instrumentation.Hangfire	93.58% <ø> (?)
unittests-Instrumentation.Http	73.57% <ø> (?)
unittests-Instrumentation.Owin	85.97% <ø> (?)
unittests-Instrumentation.Process	100.00% <ø> (?)
unittests-Instrumentation.Quartz	78.94% <ø> (?)
unittests-Instrumentation.Runtime	97.53% <ø> (?)
unittests-Instrumentation.SqlClient	91.36% <ø> (?)
unittests-Instrumentation.StackExchangeRedis	69.92% <ø> (?)
unittests-Instrumentation.Wcf	78.47% <ø> (?)
unittests-PersistentStorage	65.78% <ø> (?)
unittests-Resources.AWS	77.85% <ø> (?)
unittests-Resources.Azure	83.89% <ø> (?)
unittests-Resources.Container	72.41% <ø> (?)
unittests-Resources.Gcp	72.54% <ø> (?)
unittests-Resources.Host	73.94% <ø> (?)
unittests-Resources.OperatingSystem	77.20% <ø> (?)
unittests-Resources.Process	100.00% <ø> (?)
unittests-Resources.ProcessRuntime	77.08% <ø> (?)
unittests-Sampler.AWS	87.74% <ø> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...on.EventCounters/MeterProviderBuilderExtensions.cs	95.65% <95.00%> (-4.35%)	⬇️
...ounters/EventCountersInstrumentationEventSource.cs	6.66% <0.00%> (-2.43%)	⬇️
...entCounters/EventCountersInstrumentationOptions.cs	74.07% <66.66%> (-25.93%)	⬇️

... and 375 files with indirect coverage changes

[github-actions]

This PR was marked stale due to lack of activity. It will be closed in 7 days.

[github-actions]

This PR was marked stale due to lack of activity. It will be closed in 7 days.

[ysolomchenko]

@CodeBlanch Could you review this PR?

[github-actions]

This PR was marked stale due to lack of activity. It will be closed in 7 days.

[github-actions]

This PR was marked stale due to lack of activity. It will be closed in 7 days.