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110 lines
3.7 KiB
Python
110 lines
3.7 KiB
Python
import logging
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import os
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import sys
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from celery.signals import worker_init
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from flask_login import user_loaded_from_request, user_logged_in
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from opentelemetry import metrics, trace
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from opentelemetry.propagate import set_global_textmap
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from opentelemetry.propagators.b3 import B3MultiFormat
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from opentelemetry.propagators.composite import CompositePropagator
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from opentelemetry.trace.propagation.tracecontext import TraceContextTextMapPropagator
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from configs import dify_config
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from extensions.otel.semconv import DifySpanAttributes, GenAIAttributes
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from libs.helper import extract_tenant_id
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from models import Account, EndUser
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logger = logging.getLogger(__name__)
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def setup_context_propagation() -> None:
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set_global_textmap(
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CompositePropagator(
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[
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TraceContextTextMapPropagator(),
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B3MultiFormat(),
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]
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)
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)
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def shutdown_tracer() -> None:
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flush_telemetry()
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def flush_telemetry() -> None:
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"""
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Best-effort flush for telemetry providers.
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This is mainly used by short-lived command processes (e.g. Kubernetes CronJob)
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so counters/histograms are exported before the process exits.
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"""
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provider = trace.get_tracer_provider()
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if hasattr(provider, "force_flush"):
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try:
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provider.force_flush()
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except Exception:
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logger.exception("otel: failed to flush trace provider")
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metric_provider = metrics.get_meter_provider()
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if hasattr(metric_provider, "force_flush"):
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try:
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metric_provider.force_flush()
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except Exception:
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logger.exception("otel: failed to flush metric provider")
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def is_celery_worker():
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return "celery" in sys.argv[0].lower()
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@user_logged_in.connect
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@user_loaded_from_request.connect
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def on_user_loaded(_sender: object, user: Account | EndUser | None) -> None:
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if dify_config.ENABLE_OTEL and user:
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try:
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if not trace.get_current_span().is_recording():
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return
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set_identity_span_attributes(tenant_id=extract_tenant_id(user), user_id=user.id)
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except Exception:
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logger.exception("Error setting tenant and user attributes")
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def set_identity_span_attributes(*, tenant_id: str | None, user_id: str) -> None:
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"""Enrich the recording span; a missing workspace (None) skips enrichment."""
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if not dify_config.ENABLE_OTEL:
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return
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try:
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current_span = trace.get_current_span()
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if not current_span.is_recording() or not tenant_id:
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return
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current_span.set_attributes({DifySpanAttributes.TENANT_ID: tenant_id, GenAIAttributes.USER_ID: user_id})
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except Exception:
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logger.exception("Error setting tenant and user attributes")
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@worker_init.connect(weak=False)
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def init_celery_worker(*args: object, **kwargs: object):
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if dify_config.ENABLE_OTEL:
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from opentelemetry.metrics import get_meter_provider
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from opentelemetry.trace import get_tracer_provider
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from extensions.otel.celery_sqlcommenter import setup_celery_sqlcommenter
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tracer_provider = get_tracer_provider()
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metric_provider = get_meter_provider()
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if dify_config.DEBUG:
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logger.info("Initializing OpenTelemetry for Celery worker")
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setup_celery_sqlcommenter(tracer_provider=tracer_provider, meter_provider=metric_provider)
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def is_instrument_flag_enabled() -> bool:
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"""
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Check if external instrumentation is enabled via environment variable.
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Third-party non-invasive instrumentation agents set this flag to coordinate
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with Dify's manual OpenTelemetry instrumentation.
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"""
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return os.getenv("ENABLE_OTEL_FOR_INSTRUMENT", "").strip().lower() == "true"
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