v0.4.0

[0.4.0] - 2022-08-09

This focus of this release is a brand-new OTLP client implementation. It has fewer features
than the opentelemetry-collector code, and allows for more fine-grained control over how
gRPC and HTTP are configured. Along the way, the otelcli and otlpclient packages went
through a couple refactors to organize code better in preparation for adding metrics and
logs, hopefully in 0.5.0.

Added

• --force-parent-span-id allows forcing the span parent (thanks @domofactor!)
• otel-cli status now includes a list of errors including retries that later succeeded

Changed

• --otlp-blocking is marked deprecated and no longer does anything
• the OTLP client implementation is no longer using opentelemetry-collector
• traceparent code is now in a w3c/traceparent package
• otlpserver.CliEvent is removed entirely, preferring protobuf spans & events

Merged PRs

• 0cb7f5a add functionality for --force-parent-span-id (#241)
• 599d24c chore(deps): update jaegertracing/all-in-one docker tag to v1.46.0 (#216)
• b2e0ce4 cleanups 2023-06-29 (#243)
• 71b9cf1 custom OTLP client (#205)
• 32952e6 fill in some testing gaps, fix grpc headers (#232)
• 159cd1e fix(deps): update google.golang.org/genproto/googleapis/rpc digest to e449d1e (#230)
• bdbfcbb misc cleanups (#224)
• 25b3d51 move error tracking to context values, add multiple canaries to otel-cli status (#227)
• 9a19f5f refactor Config out of otlpclient (#245)
• 2e507f5 remove otlpserver.CliEvent (#221)
• f2ffe9c separate otlpclient code from CLI code (#223)
• 819cae9 separate w3c traceparent to its own package (#225)
• 5f1223a update CHANGELOG.md for release 0.4.0 (#251)