This implements specification requirement:
https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/resource/sdk.md#resource-creation
- Changes `resource.NewWithAttributes` to require a schema URL. The old function
is still available as `resource.NewSchemaless`. This is a breaking change.
We want to encourage using schema URL and make it a conscious choice to have a
resource without schema.
- Merge schema URLs acccording to the spec in resource.Merge.
- Several builtin resource detectors now correctly populate the schema URL.
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
* Push->basic
* Repackage
* Rename away from push
* Make exporter optional; export from a separate goroutine
* Move pull_test into controller_test
* Precommit pass
* New OTLP/Prom example
* Precommit
* Fix the example
* Shorten the example
* Test starting controller w/o exporter
* Test export timeout
* Remove ancient example & lint
* go.mod revert & tidy
* Comments
* Tidy a diff
* Tidy a diff
* Move export kind selector in the new example
* Split this test into its original parts
* Reduce diff size
* Changelog
* Remove extra Add/Done pair
* Remove unused stopCh param; document the Stop behavior
* Typo
* Use ctx
* Missed v0.15
* Apply PR feedback
* Precommit pass
* 0.14 -> 0.15 in new file
* Remove diff chunk markers
* Fix OTLP example
* Upstream
* dashpole comments
* aneurysm9 feedback
* Tidy go.sum
