Release v0.8.0

[MrAlias]

Added

• Add the WithPropagator option to github.com/signalfx/splunk-otel-go/distro along with parsing of the OTEL_PROPAGATORS environment variable to set the global OpenTelemetry TextMapPropagator. (Support OTEL_PROPAGATORS in distro #295)
• Add the WithTraceExporter and WithTLSConfig options to github.com/signalfx/splunk-otel-go/distro along with parsing of the OTEL_TRACES_EXPORTER environment variable to set the global OpenTelemetry SpanExporter used by the SDK to export traces. (Support OTEL_TRACES_EXPORTER in distro #300)
• Add the splunk.distro.version attribute to the SDK resource. (Set splunk.distro.version attr in resource #332)
• Add the WithLogger option to github.com/signalfx/splunk-otel-go/distro along with parsing of the OTEL_LOG_LEVEL environment variable to set the logging level of the default logger used. (Add logging to the distro #336)
• The SPLUNK_REALM environment variable is now supported. If set, the exporter will use the corresponding Splunk ingest endpoint. (Use Splunk realm for endpoint if defined #725)

Changed

• The SDK from github.com/signalfx/splunk-otel-go/distro now uses an OTLP exporter by default. The previous default Jaeger thrift exporter can still be used by setting the OTEL_TRACES_EXPORTER environment variable to jaeger-thrift-splunk, or by directly passing the user configured exporter with a WithTraceExporter option. (Support OTEL_TRACES_EXPORTER in distro #300)
• Update go.opentelemetry.io/otel* dependencies from v1.3.0 to v1.6.1. (Upgrade OTel to 1.6.0 #656, Bump go.opentelemetry.io/otel from 1.6.0 to 1.6.1 in /instrumentation/gopkg.in/olivere/elastic/splunkelastic/test #720)
• Update go.opentelemetry.io/contrib* dependencies from v1.4.0/v0.30.0 to v1.6.0/v0.31.0. (Bump go.opentelemetry.io/otel from 1.6.0 to 1.6.1 in /instrumentation/gopkg.in/olivere/elastic/splunkelastic/test #720)
• The OTEL_TRACES_SAMPLER environment variable is now honored instead of only defaulting to an always-on sampler. (Honor sampler environment variable if set #724)
• Set span limits to the Splunk defaults (the link count is limited to 1000, the attribute value length is limited to 12000, and all other limits are set to be unlimited) if they are not set by the user with environment variables. (Apply Splunk span limit defaults #723)

Fixed

• Consistently import github.com/jackc/pgx/v4, instead of github.com/jackc/pgx, in the github.com/signalfx/splunk-otel-go/instrumentation/github.com/jackc/pgx/splunkpgx instrumentation. (Use jackc/pgx/v4 consistently #478)

[codecov-commenter]

Codecov Report

Merging #726 (c9eab99) into main (ce2bf75) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #726   +/-   ##
=======================================
  Coverage   79.55%   79.55%           
=======================================
  Files          56       56           
  Lines        2798     2798           
=======================================
  Hits         2226     2226           
  Misses        525      525           
  Partials       47       47           

Flag	Coverage Δ
Linux	79.19% <100.00%> (ø)
Windows	75.74% <100.00%> (ø)
macOS	75.48% <100.00%> (ø)

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

Impacted Files	Coverage Δ
version.go	100.00% <100.00%> (ø)

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[pellared]

- Update `go.opentelemetry.io/otel*` dependencies from [`v1.3.0`][otel-v1.3.0]
  to [`v1.6.1`][otel-v1.6.1]. (#656, #720)
- Update `go.opentelemetry.io/contrib*` dependencies from
  [`v1.4.0`/`v0.30.0`][contrib-v1.4.0] to [`v1.6.0`/`v0.31.0`][contrib-v1.6.0].
  (#720)

this section in CHANGELOG.md needs little fixes

1. I think that Bump go.opentelemetry.io/otel from 1.6.0 to 1.6.1 in /instrumentation/gopkg.in/olivere/elastic/splunkelastic/test #720 hyperlink is wrong. Personally, I would even omit the PRs hyperlinks for bumping dependencies (not worth the effort).
2. go.opentelemetry.io/contrib* were bumped from v0.28.0 and v1.3.0

[pellared]

I think this #492 should be added to the Changed section
MAYBE this one #494 as well (I am not sure)

[MrAlias]

I think this #492 should be added to the Changed section MAYBE this one #494 as well (I am not sure)

Those are not user facing changes. I'm not sure they are relevant to the end user reading the changelog.

[pellared]

This one is user-facing: #492

Different package path (user would need to update the go.mod)

[MrAlias]

This one is user-facing: #492

Different package path (user would need to update the go.mod)

Gotcha 👍

[pellared]

I left a few suggestions. Everything else LGTM. I will let you know when I finish smoke testing.