[OTEL] Support OpenTelemetry

[smeubank]

Description

OpenTelemetry is a popular open standard for collecting observability data. It has grown in popularity across many during programming languages and vendors in recent years. There is a growing interest to have support in react native. There is work to extend Sentry SDK support for OpenTelemetry in Sentry.

We should assess the existing potential of instrumenting with OpenTelemetry and Sentry SDKs in react native application to send this data to Sentry, and properly integrate it with the existing functionality of Sentry and its SDKs.

High level requirements

• OpenTelemetry SDK responsible for capturing spans and propagated traces
• Sentry SDK responsible for converting those spans into sentry spans and transactions
  • to be sent to Sentry and not interfere with any existing OTEL collector requests
• Sentry SDK takes care to ensure tracing is connected with errors
• Sentry SDK remains responsible capturing errors and all other features of Sentry which OpenTelemetry SDKs cannot support

Full details of the implementation is being continuously documented the SDK Develop Spec

Details

• span processor - transforming OTEL spans into Sentry spans within Sentry transactions
  • span name and description
  • parent child relationships
• trace/context propagator - including DSC and trace context
  • https://opentelemetry.io/docs/reference/specification/context/api-propagators/

Reference

GH Discussion: getsentry/sentry#40712