8000 Support config environment variables · Issue #1 · r-lib/otel · GitHub
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Support config environment variables #1
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Support config environment variables#1
@gaborcsardi

Description

@gaborcsardi
gaborcsardi
opened on Mar 21, 2025

I.e. https://opentelemetry.io/docs/specs/otel/configuration/sdk-environment-variables/
Some of these might be already implicitly supported by opentelemetry-cpp. Some of them might not make sense for us. Some must be implemented in the otelsdk package.

General SDK Configuration

  • OTEL_SDK_DISABLED
  • OTEL_RESOURCE_ATTRIBUTES
  • OTEL_SERVICE_NAME
  • OTEL_LOG_LEVEL
  • OTEL_PROPAGATORS
  • OTEL_TRACES_SAMPLER
  • OTEL_TRACES_SAMPLER_ARG

Batch Span Processor

  • OTEL_BSP_SCHEDULE_DELAY
  • OTEL_BSP_EXPORT_TIMEOUT
  • OTEL_BSP_MAX_QUEUE_SIZE
  • OTEL_BSP_MAX_EXPORT_BATCH_SIZE

Batch LogRecord Processor

  • OTEL_BLRP_SCHEDULE_DELAY
  • OTEL_BLRP_EXPORT_TIMEOUT
  • OTEL_BLRP_MAX_QUEUE_SIZE
  • OTEL_BLRP_MAX_EXPORT_BATCH_SIZE

Attribute Limits

  • OTEL_ATTRIBUTE_VALUE_LENGTH_LIMIT
  • OTEL_ATTRIBUTE_COUNT_LIMIT

Span Limits

  • OTEL_SPAN_ATTRIBUTE_VALUE_LENGTH_LIMIT
  • OTEL_SPAN_ATTRIBUTE_COUNT_LIMIT
  • OTEL_SPAN_EVENT_COUNT_LIMIT
  • OTEL_SPAN_LINK_COUNT_LIMIT
  • OTEL_EVENT_ATTRIBUTE_COUNT_LIMIT
  • OTEL_LINK_ATTRIBUTE_COUNT_LIMIT

LogRecord Limits

  • OTEL_LOGRECORD_ATTRIBUTE_VALUE_LENGTH_LIMIT
  • OTEL_LOGRECORD_ATTRIBUTE_COUNT_LIMIT

OTLP Exporter

From https://opentelemetry.io/docs/specs/otel/protocol/exporter/

  • OTEL_EXPORTER_OTLP_ENDPOINT

  • OTEL_EXPORTER_OTLP_TRACES_ENDPOINT

  • OTEL_EXPORTER_OTLP_METRICS_ENDPOINT

  • OTEL_EXPORTER_OTLP_LOGS_ENDPOINT

  • OTEL_EXPORTER_OTLP_INSECURE

  • OTEL_EXPORTER_OTLP_TRACES_INSECURE

  • OTEL_EXPORTER_OTLP_METRICS_INSECURE

  • OTEL_EXPORTER_OTLP_LOGS_INSECURE

  • OTEL_EXPORTER_OTLP_CERTIFICATE

  • OTEL_EXPORTER_OTLP_TRACES_CERTIFICATE

  • OTEL_EXPORTER_OTLP_METRICS_CERTIFICATE

  • OTEL_EXPORTER_OTLP_LOGS_CERTIFICATE

  • OTEL_EXPORTER_OTLP_CLIENT_KEY

  • OTEL_EXPORTER_OTLP_TRACES_CLIENT_KEY

  • OTEL_EXPORTER_OTLP_METRICS_CLIENT_KEY

  • OTEL_EXPORTER_OTLP_LOGS_CLIENT_KEY

  • OTEL_EXPORTER_OTLP_CLIENT_CERTIFICATE

  • OTEL_EXPORTER_OTLP_TRACES_CLIENT_CERTIFICATE

  • OTEL_EXPORTER_OTLP_METRICS_CLIENT_CERTIFICATE

  • OTEL_EXPORTER_OTLP_LOGS_CLIENT_CERTIFICATE

  • OTEL_EXPORTER_OTLP_HEADERS

  • OTEL_EXPORTER_OTLP_TRACES_HEADERS

  • OTEL_EXPORTER_OTLP_METRICS_HEADERS

  • OTEL_EXPORTER_OTLP_LOGS_HEADERS

  • OTEL_EXPORTER_OTLP_COMPRESSION

  • OTEL_EXPORTER_OTLP_TRACES_COMPRESSION

  • OTEL_EXPORTER_OTLP_METRICS_COMPRESSION

  • OTEL_EXPORTER_OTLP_LOGS_COMPRESSION

  • OTEL_EXPORTER_OTLP_TIMEOUT

  • OTEL_EXPORTER_OTLP_TRACES_TIMEOUT

  • OTEL_EXPORTER_OTLP_METRICS_TIMEOUT

  • OTEL_EXPORTER_OTLP_LOGS_TIMEOUT

  • OTEL_EXPORTER_OTLP_PROTOCOL

  • OTEL_EXPORTER_OTLP_TRACES_PROTOCOL

  • OTEL_EXPORTER_OTLP_METRICS_PROTOCOL

  • OT 5343 EL_EXPORTER_OTLP_LOGS_PROTOCOL

Zipkin Exporter

  • OTEL_EXPORTER_ZIPKIN_ENDPOINT
  • OTEL_EXPORTER_ZIPKIN_TIMEOUT

Prometheus Exporter

  • OTEL_EXPORTER_PROMETHEUS_HOST
  • OTEL_EXPORTER_PROMETHEUS_PORT

Exporter Selection

  • OTEL_TRACES_EXPORTER
  • OTEL_METRICS_EXPORTER
  • OTEL_LOGS_EXPORTER

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