This PR adds an OTLP logger to Envoy, which allows users to flexibly configure their log structure (according to OpenTelemetry protos).
The API users the common gRPC configuration, used in ALS, for gRPC settings. The flexible OT fields (body, attributes) are completely configurable and are filled with request/response information based on Envoy access log formatting.
There are still a couple of TODOs -
The 'filter_state_objects_to_log' from the common gRPC config isn't added to the log
Resource attributes are not configurable, and only Envoy node info is added.
Note: this extension was added as v3alpha API.
Risk Level: Low - a new extension, so unlikely to break any existing setups (marked as v3alpha API).
Testing: Unit tests.
Docs Changes:
Release Notes: access log: added a new :ref:OpenTelemetry access logger <envoy_v3_api_msg_extensions.access_loggers.open_telemetry.v3alpha.OpenTelemetryAccessLogConfig> extension, allowing a flexible log structure with native Envoy access log formatting.
Signed-off-by: Itamar Kaminski <itamark@google.com>
Mirrored from https://github.com/envoyproxy/envoy @ 4f52f9ef554e1522e763c0eaf6ef6833aab283e5
data-plane-api(Azure Pipelines)