updating documentation in https://github.com/elastic/observability-docs/pull/2731 to invite users to provide values for service.version and service.environment (by using SERVICE_NAME and ENVIRONMENT configurations respectively).
when ecs-logging library is used:
agents provide fallback values if they are not set in ecs-logging configuration for: service.name, service.version and service.environment. Giving priority to existing values (if any) avoids making this a breaking change.
(optional but highly recommended) if values from agent configuration and ecs-logging configuration differ, issuing a warning is relevant to inform end user that traces and logs can't be properly correlated.
when log reformatting (and log sending) is used:
produced ECS logs should contain service.name, service.version and service.environment with values from agent configuration.
Description
Agent implementation of specification change #766
Summary of the required changes:
service.versionandservice.environment(by usingSERVICE_NAMEandENVIRONMENTconfigurations respectively).service.name,service.versionandservice.environment. Giving priority to existing values (if any) avoids making this a breaking change.service.name,service.versionandservice.environmentwith values from agent configuration.Agent Issues