Prerequisite

Opentelemetry sink expects events conforming to the OTEL format. We need to use Remap to prepare events for ingestion, so we will keep all existing data transformation remap function.

Required changes

Update Vector version at least https://vector.dev/releases/0.43.0 (we have ready to go PR for v0.46.1)
Extend compression format list for Otlp in API with all supported format by Opentelentry sink
Change Vector configuration generator, sample of config:

[sinks.output_otel_collector]
type = "opentelemetry"
inputs = ["output_otel_collector_resource_logs"]
protocol.uri = "http://localhost:4318/v1/logs"
protocol.type = "http"
protocol.method = "post"
protocol.encoding.codec = "json"
protocol.encoding.except_fields = ["_internal"]
protocol.payload_prefix = "{\"resourceLogs\":"
protocol.payload_suffix = "}"

Acceptance Criteria

All tests should pass